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24 tháng 10

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8 tháng 11

Eating too much fast food poses several risks for teenagers' health. Fast food is high in unhealthy fats, sugar, and salt, which can lead to obesity, heart disease, and high blood pressure if consumed frequently. Additionally, it lacks essential nutrients like vitamins, minerals, and fiber, which are necessary for teenagers' energy and focus. Regular consumption of fast food can also be addictive, making it difficult to switch to healthier choices. Studies even suggest that a poor diet may be linked to mental health issues like depression and anxiety, especially among young people.

To persuade teenagers to eat less fast food, it's essential to raise awareness about its negative effects on physical and mental health. Schools can also promote healthier and more appealing options in cafeterias. Cooking workshops or classes can empower students to prepare simple, nutritious meals. Moreover, involving role models, such as popular peers or teachers, can positively influence students' eating habits. Offering small rewards for choosing healthier food could further encourage students to make better choices. In the end, it’s important to highlight that occasional fast food is fine, but frequent consumption can have serious consequences; making mindful food choices is the best way to maintain long-term health.

8 tháng 1 2019

bucminhgiúp mk với ạ

cần gấp

8 tháng 1 2019

yeu

One of the ways we assess students on this course is to give them a level related to the Common European Framework (CEFR). This framework is now being used in 16 universities in Vietnam. The goal of this course is for students to reach at least B1 or B2 if you want to progress to IELTS (see attachment below). This means you are an independent user of English. You are assessed throughout the course in every lesson and you will be required to produce an e-portfolio showing your best work (a...
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One of the ways we assess students on this course is to give them a level related to the Common European Framework (CEFR). This framework is now being used in 16 universities in Vietnam. The goal of this course is for students to reach at least B1 or B2 if you want to progress to IELTS (see attachment below). This means you are an independent user of English. You are assessed throughout the course in every lesson and you will be required to produce an e-portfolio showing your best work (a website). I will explain how to do this later in the course. For now, you should start to keep a journal of your learning here. This should reflect what you have learned. Please write about your reflections on the UN Convention on the Rights of the Child: Feelings about what you have learned today The role of the CRC and Vietnam Something new and interesting that you learned today and that you didn't know before. Please write150-200 words and check your work BEFORE you turn it in.

mong cac ban giup minh mai minh co bai thi

0
The young people below all want to do an art course during their school holidays. On the opposite page there are descriptions of eight short art courses. Decide which course would be the most suitable for the following people. For questions 6 - 10, mark the correct letter (A - H) on your answer sheet. Harry has done a Course about printing on paper, and would like to learn how to print on other materials He also wants to produce something to take home and wear Short Art...
Đọc tiếp

The young people below all want to do an art course during their school holidays.

On the opposite page there are descriptions of eight short art courses.

Decide which course would be the most suitable for the following people.

For questions 6 - 10, mark the correct letter (A - H) on your answer sheet.

Harry has done a Course about printing on paper, and would like to learn how to print on other materials He also wants to produce something to take home and wear

Short Art Courses

A. Wild Art This Course Concentrates on teaching drawing and painting, and you’ll use your new skills to make a wall poster on the theme of animals, to take home. And we 've got lots of picture books from galleries around the world to give you ideas! There’ll be an exhibition of everyone 's work at the end, too.

B. Colourscape Come and make a bag to keep your school games clothes in We supply lots of colorful wool and printed cotton - you choose the design and color like your favorite football or hockey team colors! ). There 'll also be a trip to a gallery to help you get creative in your designs.

C. Create! This Course is all about telling Cod stories in pictures. There 'll be cartoon films to watch, and instruction in how to draw your favorite characters - but your imagination is much more important than your drawing skills here! The Cours includes a visit to a cartoon museum.

D. Art Attack You 'll work on developing creative skills, like printing, photography, cartoons and Provie - making. using the latest technology This course is great for anyone wanting to take these subjects at college, Good drawing skills are helpful on this course, and students' work will be put into a book, where suitable, for everyone to buy.

E. Art Matters This course will concentrate on different drawing techniques, including using inks and color. We 'll get you to draw live models wearing designer fashions and sportswear - so f you like designing fashion and think your future is in this area, then this course is for you

F. Art Magic This fun course shows you how to design and make ashion jewelery from natural materials, and particularly how to use photography to help you get ideas for your designs. So if you have your own amera, bring it along

G. Art Centro Ever wondered what your Comic stories would look like on film? Here 's your chance to find out! Bring along your own comic drawings or prints - good quality onee if possible - and we '11 transfer the action from your page onto the screen Film show of the best cartoons at the end!

H. Rainbow Bring glonga clean white T - shirt for this fun course Using Printing inks and paints, we 'll show you how to transfer a picture onto your T - shirt and create a special artwork that you can put on for everyone to admirel

1
11 tháng 1 2020

đề thiếu phải không

I. Choose the correct answer: 1. Do you mind...the air - conditioner? It is too cold. A. turn on B. turn off C. turning on D. turning off 2. Sitting too long in front of he computer makes your eyes..... A. tired B. harm C. boring D. relax 3. When you plays games online, be careful when you make friend with..... A. girls B. boy C.strangers D. your classmates 4. Anna prefers.....TV to.....books. A. watching/reading B. watch/read C. watching/read D. watch/reading 5. The phrase " window shopping "...
Đọc tiếp

I. Choose the correct answer:
1. Do you mind...the air - conditioner? It is too cold.
A. turn on B. turn off C. turning on D. turning off
2. Sitting too long in front of he computer makes your eyes.....
A. tired B. harm C. boring D. relax
3. When you plays games online, be careful when you make friend with.....
A. girls B. boy C.strangers D. your classmates
4. Anna prefers.....TV to.....books.
A. watching/reading B. watch/read C. watching/read D. watch/reading
5. The phrase " window shopping " means:
A. buying a window B. just looking without intending to buy
B. going shopping through the window D. buying so many things at the same time
6. Do you fancy.....origami?
A. making B. make C. doing D. do
7. The sentence " c u 2moro " means:
A. See you tommorrow B. Nice to meet you
C. See you later D. Let me see
8. I hate.....up late to do homework.
A. staying B. stay C. get D. getting
9. My younger brother used to detest.....fish, but now he likes doing it.
A. eats B. ate C. eating D.eat
10. Computers should only be used for....time.
A. limited B. unlimited c. limit D. freedom
II. Read the passage about British and American teenagers, and answer the questions:
Sport: In the UK, footbal, rugby, tennis and basketball are the most popular sports for teenagers. In the USA, American football, athletics, basketball and baseball are popular.
The Internet and television: Teenagers in both the UK and the USA today watch television less than before but they use the Internet more. They spend over 25 hours a week online. Pocket money and shopping: The average teenager in the UK gets about 7$ a week pocket money. In the USA it is about. They spend their money on clothes and going out, but magazines, presents and snacks are so important.
Friends: The average British and America teenagers has seven close friends. He or she has sixteen online friends on social network websites.
1. Which sports do British and American teenagers play in their free time?
-------------------------------------------------------------------------------------------------------------------------------------------------------
2. How long do they spend online?
-------------------------------------------------------------------------------------------------------------------------------------------------------
3. How much pocket money do they get?
-------------------------------------------------------------------------------------------------------------------------------------------------------
4. What do they spend it on?
-------------------------------------------------------------------------------------------------------------------------------------------------------
5. How many online friends do they have?
III. Complete the sentences in Mai's email with the correct form of the verb in brackets:
Hi, Susan!
Well, I'm here in Ha Noi, now. I see quite a lot of my cousin Hoa because we (1) (enjoy/do)................ the same things. I have some new friends called David and John. David is very good at computers and he (2) (not mind/help).............me so that's good. John is really nice too. He (3) (play)...........basketball and he (4) (go/skateboard)............ quite a lot. His brother Toby is 18 and he's really cool but he (5) (prefer/play)............football. I (6) (do)...............gymnastics once a week and Hoa (7) (do)..........karate. She prefers indoor sports because she (8) (not like/get)........cold!
Write soon!
*Các bạn làm giúp mình với ạ, mình đang cần gấp! Mình cảm ơn trước nhé!

3
9 tháng 8 2019

I. Choose the correct answer:
1. Do you mind...the air - conditioner? It is too cold.
A. turn on B. turn off C. turning on D. turning off
2. Sitting too long in front of he computer makes your eyes.....
A. tired B. harm C. boring D. relax
3. When you plays games online, be careful when you make friend with.....
A. girls B. boy C.strangers D. your classmates
4. Anna prefers.....TV to.....books.
A. watching/reading B. watch/read C. watching/read D. watch/reading
5. The phrase " window shopping " means:
A. buying a window B. just looking without intending to buy
B. going shopping through the window D. buying so many things at the same time
6. Do you fancy.....origami?
A. making B. make C. doing D. do
7. The sentence " c u 2moro " means:
A. See you tommorrow B. Nice to meet you
C. See you later D. Let me see
8. I hate.....up late to do homework.
A. staying B. stay C. get D. getting
9. My younger brother used to detest.....fish, but now he likes doing it.
A. eats B. ate C. eating D.eat
10. Computers should only be used for....time.
A. limited B. unlimited c. limit D. freedom
III. Complete the sentences in Mai's email with the correct form of the verb in brackets:
Hi, Susan!
Well, I'm here in Ha Noi, now. I see quite a lot of my cousin Hoa because we (1) (enjoy/do)....enjoy doing............ the same things. I have some new friends called David and John. David is very good at computers and he (2) (not mind/help)......doesn't mind helping.......me so that's good. John is really nice too. He (3) (play)...plays........basketball and he (4) (go/skateboard)......goes skateboarding...... quite a lot. His brother Toby is 18 and he's really cool but he (5) (prefer/play).......prefers playing.....football. I (6) (do).........do......gymnastics once a week and Hoa (7) (do).....does.....karate. She prefers indoor sports because she (8) (not like/get).....doesn't like get...cold!
Write soon!
*Các bạn làm giúp mình với ạ, mình đang cần gấp! Mình cảm ơn trước nhé!

=>Bài đọc bn tự rèn kĩ năng reading and writing nha!

9 tháng 8 2019

I. Choose the correct answer:
1. Do you mind...the air - conditioner? It is too cold.
A. turn on B. turn off C. turning on D. turning off
2. Sitting too long in front of he computer makes your eyes.....
A. tired B. harm C. boring D. relax
3. When you plays games online, be careful when you make friend with.....
A. girls B. boy C.strangers D. your classmates
4. Anna prefers.....TV to.....books.
A. watching/reading B. watch/read C. watching/read D. watch/reading
5. The phrase " window shopping " means:
A. buying a window B. just looking without intending to buy
B. going shopping through the window D. buying so many things at the same time
6. Do you fancy.....origami?
A. making B. make C. doing D. do
7. The sentence " c u 2moro " means:
A. See you tommorrow B. Nice to meet you
C. See you later D. Let me see
8. I hate.....up late to do homework.
A. staying B. stay C. get D. getting
9. My younger brother used to detest.....fish, but now he likes doing it.
A. eats B. ate C. eating D.eat
10. Computers should only be used for....time.
A. limited B. unlimited c. limit D. freedom
II. Read the passage about British and American teenagers, and answer the questions:
Sport: In the UK, footbal, rugby, tennis and basketball are the most popular sports for teenagers. In the USA, American football, athletics, basketball and baseball are popular.
The Internet and television: Teenagers in both the UK and the USA today watch television less than before but they use the Internet more. They spend over 25 hours a week online. Pocket money and shopping: The average teenager in the UK gets about 7$ a week pocket money. In the USA it is about. They spend their money on clothes and going out, but magazines, presents and snacks are so important.
Friends: The average British and America teenagers has seven close friends. He or she has sixteen online friends on social network websites.
1. Which sports do British and American teenagers play in their free time?
------------They play footbal, rugby, tennis, basketball, athletics and baseball-------------------------------------------------------------------------------------------------------------------------------------------
2. How long do they spend online?
--------------They spend over 25 hours a week online-----------------------------------------------------------------------------------------------------------------------------------------
3. How much pocket money do they get?
---------------They get 7$ a week----------------------------------------------------------------------------------------------------------------------------------------
4. What do they spend it on?
----------They spend it on clothes, going out, magazines, presents and snacks---------------------------------------------------------------------------------------------------------------------------------------------
5. How many online friends do they have?
III. Complete the sentences in Mai's email with the correct form of the verb in brackets:
Hi, Susan!
Well, I'm here in Ha Noi, now. I see quite a lot of my cousin Hoa because we (1) enjoy doing the same things. I have some new friends called David and John. David is very good at computers and he (2) don't mind helping me so that's good. John is really nice too. He plays basketball and he goes skateboarding quite a lot. His brother Toby is 18 and he's really cool but he (5) prefers playing football. I do gymnastics once a week and Hoa (7) does karate. She prefers indoor sports because she (8) doesn't like getting cold!
Write soon!

The young people below all want to do an art course during their school holidays. On the opposite page there are descriptions of eight short art courses. Decide which course would be the most suitable for the following people. For questions 6 - 10, mark the correct letter (A - H) on your answer sheet. 6.Alice wants a course to help her with her drawing skills, particularly with drawing the latest styles of clothes, shoes and bags, because she wants to study this later at...
Đọc tiếp

The young people below all want to do an art course during their school holidays.

On the opposite page there are descriptions of eight short art courses.

Decide which course would be the most suitable for the following people.

For questions 6 - 10, mark the correct letter (A - H) on your answer sheet.

6.Alice wants a course to help her with her drawing skills, particularly with drawing the latest styles of clothes, shoes and bags, because she wants to study this later at college.

7.Darius loves making comic books, but isn 't confident about his drawing. He wants to draw Superheroes and animals and Create adventures about them, but doesn 't want to display his work.

8.Cassie enjoys making pictures and objects from different materials. During the course she 'd like to use her love of sport in her designs, and visit an exhibition to get new ideas.

9.Marc is talented at drawing, but also likes filming his friends on an old digital camera He wants to develop this skill by learning to use more advanced equipment, and prepare for further study.

10.Harry has done a Course about printing on paper, and would like to learn how to print on other materials He also wants to produce something to take home and wear

Short Art Courses

A. Wild Art This Course Concentrates on teaching drawing and painting, and you’ll use your new skills to make a wall poster on the theme of animals, to take home. And we 've got lots of picture books from galleries around the world to give you ideas! There’ll be an exhibition of everyone 's work at the end, too.

B. Colourscape Come and make a bag to keep your school games clothes in We supply lots of colorful wool and printed cotton - you choose the design and color like your favorite football or hockey team colors! ). There 'll also be a trip to a gallery to help you get creative in your designs.

C. Create! This Course is all about telling Cod stories in pictures. There 'll be cartoon films to watch, and instruction in how to draw your favorite characters - but your imagination is much more important than your drawing skills here! The Cours includes a visit to a cartoon museum.

D. Art Attack You 'll work on developing creative skills, like printing, photography, cartoons and Provie - making. using the latest technology This course is great for anyone wanting to take these subjects at college, Good drawing skills are helpful on this course, and students' work will be put into a book, where suitable, for everyone to buy.

E. Art Matters This course will concentrate on different drawing techniques, including using inks and color. We 'll get you to draw live models wearing designer fashions and sportswear - so f you like designing fashion and think your future is in this area, then this course is for you

F. Art Magic This fun course shows you how to design and make ashion jewelery from natural materials, and particularly how to use photography to help you get ideas for your designs. So if you have your own amera, bring it along

G. Art Centro Ever wondered what your Comic stories would look like on film? Here 's your chance to find out! Bring along your own comic drawings or prints - good quality onee if possible - and we '11 transfer the action from your page onto the screen Film show of the best cartoons at the end!

H. Rainbow Bring glonga clean white T - shirt for this fun course Using Printing inks and paints, we 'll show you how to transfer a picture onto your T - shirt and create a special artwork that you can put on for everyone to admirel

1
11 tháng 1 2020

Cái này chịu khó đọc tí khác ra

For questions 6 - 10, mark the correct letter (A - H) on your answer sheet.

6.Alice wants a course to help her with her drawing skills, particularly with drawing the latest styles of clothes, shoes and bags, because she wants to study this later at college.

6 - E

7.Darius loves making comic books, but isn 't confident about his drawing. He wants to draw Superheroes and animals and Create adventures about them, but doesn 't want to display his work.

7 - C

8.Cassie enjoys making pictures and objects from different materials. During the course she 'd like to use her love of sport in her designs, and visit an exhibition to get new ideas.

8 - B

9.Marc is talented at drawing, but also likes filming his friends on an old digital camera He wants to develop this skill by learning to use more advanced equipment, and prepare for further study.

9 - D

10.Harry has done a Course about printing on paper, and would like to learn how to print on other materials He also wants to produce something to take home and wear

10 - H

Short Art Courses

A. Wild Art This Course Concentrates on teaching drawing and painting, and you’ll use your new skills to make a wall poster on the theme of animals, to take home. And we 've got lots of picture books from galleries around the world to give you ideas! There’ll be an exhibition of everyone 's work at the end, too.

B. Colourscape Come and make a bag to keep your school games clothes in We supply lots of colorful wool and printed cotton - you choose the design and color like your favorite football or hockey team colors! ). There 'll also be a trip to a gallery to help you get creative in your designs.

C. Create! This Course is all about telling Cod stories in pictures. There 'll be cartoon films to watch, and instruction in how to draw your favorite characters - but your imagination is much more important than your drawing skills here! The Cours includes a visit to a cartoon museum.

D. Art Attack You 'll work on developing creative skills, like printing, photography, cartoons and Provie - making. using the latest technology This course is great for anyone wanting to take these subjects at college, Good drawing skills are helpful on this course, and students' work will be put into a book, where suitable, for everyone to buy.

E. Art Matters This course will concentrate on different drawing techniques, including using inks and color. We 'll get you to draw live models wearing designer fashions and sportswear - so f you like designing fashion and think your future is in this area, then this course is for you

F. Art Magic This fun course shows you how to design and make ashion jewelery from natural materials, and particularly how to use photography to help you get ideas for your designs. So if you have your own amera, bring it along

G. Art Centro Ever wondered what your Comic stories would look like on film? Here 's your chance to find out! Bring along your own comic drawings or prints - good quality onee if possible - and we '11 transfer the action from your page onto the screen Film show of the best cartoons at the end!

H. Rainbow Bring glonga clean white T - shirt for this fun course Using Printing inks and paints, we 'll show you how to transfer a picture onto your T - shirt and create a special artwork that you can put on for everyone to admirel

Read the following text and decide if each sentence below is correct or incorrect. Stamp collecting- It's a hobby that can grow and grow Millions of people of all ages enjoy a hobby which is both interesting and fun. And every year, more and more people start a stamp collection of their own and discover an interest which can last a lifetime. Starting your collection is easy because stamps are everywhere. Holiday postcards from friends, birthday cards from favourite aunts and letters from...
Đọc tiếp

Read the following text and decide if each sentence below is correct or incorrect.

Stamp collecting- It's a hobby that can grow and grow

Millions of people of all ages enjoy a hobby which is both interesting and fun. And every year, more and more people start a stamp collection of their own and discover an interest which can last a lifetime. Starting your collection is easy because stamps are everywhere. Holiday postcards from friends, birthday cards from favourite aunts and letters from pen-friends can all provide you with stamps from all over the world. But once you've started collecting seriously, you will probably want to join the Stamp Collectors' Club which exists to provide collectors with new British stamps. As a Club member you order the special sets of new stamps you want for your collection. You can receive these in three different ways. We can either post you a complete set of stamps on an envelope addressed to you, or send you the same stamps in a colourful information pack with lots of interesting facts. Or, if your prefer, we can send you the individual stamps for you to arrange in special book of your own. The Stamp Collectors' Club has about 70.000 members and you could become a member too, with a two-year membership costing just $5. You can even get a reduction if a group of you joint at the same time. We're sure you'll agree that this is great value for money. And when you join, the Club sends you a Starter Pack at no extra cost. This contains 100 stamps to begin your collection, together with an attractive box to keep them in. You also receive our helpful 4-page guide to collecting, which has further suggestions on how to add to your collection and includes useful addresses of shops and businesses that sell stamps. Every two months you'll get a copy of the club magazine, which is packed full of competitions and quizzes, and gives you to chance to exchange stamps with members around the world. Why not start on an adventure which will give you years of pleasure? You'll spend many happy hours looking at the amazing variety of stamps in your collection or searching for unusual ones which you know are out there somewhere just waiting to be found. So join the Stamp Collectors' Club today and discover the fun and excitement of stamp collecting. To join the Club simply complete the application form and send your membership fee. Ypur Starter Pack will be sent within 28 days of receipt of your application. 1. The Stamp Collectors' Club sends you special stamps from many different countries. 2. The Club sends every member the same set of new stamps. 3. Information packs include a full set of stamps. 4. It costs $5 a year to join the Stamp Collectors' Club. 5. It is cheaper if several people joing the Club together. 6. The Club sends each new member a hundred free stamps. 7. The guide tells you where you may be able to buy the stamps you want. 8. Members of the Club are sent a monthly magazine. 9. The magazine helps you to contact other members. 10. You must write a letter to the Club if you want to join.
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the pressure is on. In an international______(complete) to find the best teenage band; 1100 wannable stars are norvously waiting for results. Soon they will know if they are in the final group of six. It has not been easy. A special team of D Js. These experts know the music industry ____ ( good) and they know what succeeds fron indie to pop and traditional to alternative music. So how can the band____ ( succeed) convince these judges? Some have used lyrics to describe what interests teenagers...
Đọc tiếp

the pressure is on. In an international______(complete) to find the best teenage band; 1100 wannable stars are norvously waiting for results. Soon they will know if they are in the final group of six. It has not been easy. A special team of D Js. These experts know the music industry ____ ( good) and they know what succeeds fron indie to pop and traditional to alternative music. So how can the band____ ( succeed) convince these judges? Some have used lyrics to describe what interests teenagers today. Elena from georgia hopes her works help teenagers make ____ ( decide) for themselves. Richard from France sings about teenage loves of clothes and image but says he is obviously referring to himself. Finally there is george who raps ____ ( impress) in greek and english about friendship and loyalty. Other bands just offer great musical entertainment and impress the judges with their ____ (enthuse) and energy. The Go Band from rio give a cool hip hop _____ (perform) while the six columbians in the band hop'n'skip ______ (energy) show a love of rock 'n' roll.

t

1
13 tháng 11 2017

the pressure is on. In an international___completion___(complete) to find the best teenage band; 1100 wannable stars are norvously waiting for results. Soon they will know if they are in the final group of six. It has not been easy. A special team of D Js. These experts know the music industry __well__ ( good) and they know what succeeds fron indie to pop and traditional to alternative music. So how can the band__successes__ ( succeed) convince these judges? Some have used lyrics to describe what interests teenagers today. Elena from georgia hopes her works help teenagers make __decision__ ( decide) for themselves. Richard from France sings about teenage loves of clothes and image but says he is obviously referring to himself. Finally there is george who raps __impressively__ ( impress) in greek and english about friendship and loyalty. Other bands just offer great musical entertainment and impress the judges with their __enthusiasm__ (enthuse) and energy. The Go Band from rio give a cool hip hop ___performance__ (perform) while the six columbians in the band hop'n'skip ___energetic___ (energy) show a love of rock 'n' roll.

Nowadays in the news you can read a lot about biotechnology and the controversies about it and perhaps you ask yourself what it is exactly. Well, this article is going to give you a brief history of the field of biotechnology and show you that, although the word “biotechnology” was first used in 1919, we have been using biotechnology for many thousands of years in ways that are completely uncontroversial. It will also look at the more modern developments which have started intense debate. ...
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Nowadays in the news you can read a lot about biotechnology and the controversies about it and perhaps you ask yourself what it is exactly. Well, this article is going to give you a brief history of the field of biotechnology and show you that, although the word “biotechnology” was first used in 1919, we have been using biotechnology for many thousands of years in ways that are completely uncontroversial. It will also look at the more modern developments which have started intense debate. When you are drinking a cold beer on a hot day, or eating a delicious cheese sandwich, you can thank biotechnology for the pleasure you are experiencing. That’s right! Beer, bread and cheese are all produced using biotechnology. Perhaps a definition will be useful to understand how. A standard definition is that biotechnology (or biotech for short) is the application of science and engineering to the direct or indirect use of living organisms. And as you know, the food and drink above are all produced by the fermentation of micro-organisms. In beer, the yeast multiplies as it eats the sugars in the mixture and turns them into alcohol and CO2. This ancient technique was first used in Egypt to make bread and wine around 4000BC! Antibiotics are used to prevent and treat diseases, especially those caused by bacteria. They are natural substances that are created by bacteria and fungi. The first antibiotic was made in China in about 500BC – to cure boils. In 1928 Alexander Fleming discovered penicillin and it was considered a medical miracle. Modern research is looking at the creation of super-antibodies which can kill bacteria and viruses inside the cells that house them. Our modern consumer society produces a lot of waste which needs to be disposed of safely and without harmful end products. Environmental biotechnology can help. Indeed, the use of bacteria to treat sewage was first practiced in 1914 in Manchester, England. Vermiculture or using worms to treat waste is another environmentally-friendly practice and the end product is a natural fertiliser. Bacteria have even been developed to help with problems such as oil spills. They convert crude oil and gasoline into non-toxic substances such as carbon dioxide, water and oxygen and help create a cleaner, healthier environment. These examples of biotechnology are accepted by most people. However, the discovery of the DNA structure by Watson and Crick in 1953 was the beginning of the modern era of genetics and the following areas of biotech are very controversial. Read on… The genetic modification of plants and crops has been in practice for many years. This involves changing the genetic code of these plants so that they are more resistant to bad conditions like drought, floods and frost. Supporters of GM food say that it can offer the consumer better quality, safety and taste and for over a decade Americans have been eating GM food. However, things are very different in Europe where genetically modified food is very strictly regulated and regarded with deep suspicion by the public. GM food has even been called “Frankenfood” in the press, a term inspired by the novel Frankenstein by Mary Shelley. There is a great cultural divide between America and Europe over whether such food is safe to eat and will not harm the environment and the discussion is still in progress. 1997 saw the birth of Dolly the sheep, the first animal cloned from an adult cell. This was a remarkable achievement which created world-wide debate on the ethical issues surrounding cloning. International organisations such as the European parliament, UNESCO and WHO all declared that human cloning is both morally and legally wrong. However, we need to make a distinction between reproductive cloning and therapeutic cloning. Nowadays the idea of reproductive cloning – creating a copy of another person - is no longer interesting for researchers. Instead therapeutic cloning is creating excitement in the biotech world. Key to this technique is stem cells, which are master cells that have the potential to become any other kind of cell in the body e.g. nerve cells, blood, heart muscle or even brain cells. Stem cells themselves have generated a lot of controversy as it was believed that only human embryos could provide them. However, it now appears that adult stem cells offer the same possibility. This would mean that a patient who suffered a heart attack could provide doctors with his adult stem cells which could then be implanted back into his heart and used to create heart muscle, replacing the muscle that was damaged. As the genetic code is identical, there would be no problem of the body rejecting the implant as, unfortunately, happens with organ transplants. In the future, biotechnologists hope that stem cells could be used to grow entire organs. In this way biotechnology offers the hope of revolutionising medical treatment. In this brief overview of the history of biotechnology we have jumped from making bread to making human organs - an enormous leap- and it is clear that these modern practices raise many controversial issues. However, despite the debate, we can imagine that as biotechnology has been around for many years, it will still be around for some time to come - but who knows where it will take us? Questions: After reading, choose the best answer for the following questions 1. What is the main topic of the article? Brief history and modern developments of biotechnology Benefit of biotechnology Modern research in biotechnology 2. What does the pronoun "IT" in the first paragraph refer to? Biotechnology The article The word "Biotechnology" 3. Which products were first made with fermentation of micro-organisms? Beer, bread and cheese Bread and wine Beer and cheese Decide whether the statement below is True or False. 4. Alexander Fleming discovered super-antibodies which can kill bacteria and viruses inside the cells that house them. TrueFalse 5. GM food is easily available in the U.S. and Europe. TrueFalse 6.Researchers believe that adult stem cells could be used to create body parts. TrueFalse
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28 tháng 7 2017

Nowadays in the news you can read a lot about biotechnology and the controversies about it and perhaps you ask yourself what it is exactly. Well, this article is going to give you a brief history of the field of biotechnology and show you that, although the word “biotechnology” was first used in 1919, we have been using biotechnology for many thousands of years in ways that are completely uncontroversial. It will also look at the more modern developments which have started intense debate. When you are drinking a cold beer on a hot day, or eating a delicious cheese sandwich, you can thank biotechnology for the pleasure you are experiencing. That’s right! Beer, bread and cheese are all produced using biotechnology. Perhaps a definition will be useful to understand how. A standard definition is that biotechnology (or biotech for short) is the application of science and engineering to the direct or indirect use of living organisms. And as you know, the food and drink above are all produced by the fermentation of micro-organisms. In beer, the yeast multiplies as it eats the sugars in the mixture and turns them into alcohol and CO2. This ancient technique was first used in Egypt to make bread and wine around 4000BC! Antibiotics are used to prevent and treat diseases, especially those caused by bacteria. They are natural substances that are created by bacteria and fungi. The first antibiotic was made in China in about 500BC – to cure boils. In 1928 Alexander Fleming discovered penicillin and it was considered a medical miracle. Modern research is looking at the creation of super-antibodies which can kill bacteria and viruses inside the cells that house them. Our modern consumer society produces a lot of waste which needs to be disposed of safely and without harmful end products. Environmental biotechnology can help. Indeed, the use of bacteria to treat sewage was first practiced in 1914 in Manchester, England. Vermiculture or using worms to treat waste is another environmentally-friendly practice and the end product is a natural fertiliser. Bacteria have even been developed to help with problems such as oil spills. They convert crude oil and gasoline into non-toxic substances such as carbon dioxide, water and oxygen and help create a cleaner, healthier environment. These examples of biotechnology are accepted by most people. However, the discovery of the DNA structure by Watson and Crick in 1953 was the beginning of the modern era of genetics and the following areas of biotech are very controversial. Read on… The genetic modification of plants and crops has been in practice for many years. This involves changing the genetic code of these plants so that they are more resistant to bad conditions like drought, floods and frost. Supporters of GM food say that it can offer the consumer better quality, safety and taste and for over a decade Americans have been eating GM food. However, things are very different in Europe where genetically modified food is very strictly regulated and regarded with deep suspicion by the public. GM food has even been called “Frankenfood” in the press, a term inspired by the novel Frankenstein by Mary Shelley. There is a great cultural divide between America and Europe over whether such food is safe to eat and will not harm the environment and the discussion is still in progress. 1997 saw the birth of Dolly the sheep, the first animal cloned from an adult cell. This was a remarkable achievement which created world-wide debate on the ethical issues surrounding cloning. International organisations such as the European parliament, UNESCO and WHO all declared that human cloning is both morally and legally wrong. However, we need to make a distinction between reproductive cloning and therapeutic cloning. Nowadays the idea of reproductive cloning – creating a copy of another person - is no longer interesting for researchers. Instead therapeutic cloning is creating excitement in the biotech world. Key to this technique is stem cells, which are master cells that have the potential to become any other kind of cell in the body e.g. nerve cells, blood, heart muscle or even brain cells. Stem cells themselves have generated a lot of controversy as it was believed that only human embryos could provide them. However, it now appears that adult stem cells offer the same possibility. This would mean that a patient who suffered a heart attack could provide doctors with his adult stem cells which could then be implanted back into his heart and used to create heart muscle, replacing the muscle that was damaged. As the genetic code is identical, there would be no problem of the body rejecting the implant as, unfortunately, happens with organ transplants. In the future, biotechnologists hope that stem cells could be used to grow entire organs. In this way biotechnology offers the hope of revolutionising medical treatment. In this brief overview of the history of biotechnology we have jumped from making bread to making human organs - an enormous leap- and it is clear that these modern practices raise many controversial issues. However, despite the debate, we can imagine that as biotechnology has been around for many years, it will still be around for some time to come - but who knows where it will take us?

Questions:

After reading, choose the best answer for the following questions

1. What is the main topic of the article?

Brief history and modern developments of biotechnology

Benefit of biotechnology

Modern research in biotechnology

2. What does the pronoun "IT" in the first paragraph refer to?

Biotechnology

The article

The word "Biotechnology"

3. Which products were first made with fermentation of micro-organisms?

Beer, bread and cheese

Bread and wine

Beer and cheese

Decide whether the statement below is True or False.

4. Alexander Fleming discovered super-antibodies which can kill bacteria and viruses inside the cells that house them.

TrueFalse

5. GM food is easily available in the U.S. and Europe.

TrueFalse

6.Researchers believe that adult stem cells could be used to create body parts.

TrueFalse