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A new way of making electricity

A. But that isn't the end of the story.

B. This kind of information is very useful for certain people.

C. Why not use the energy created by pedestrians instead?

D. However, one big problem could be cost.

E. And it's actually based on a simple idea.

F. This is especially true when it's been used in very busy areas.

G. But it soon became clear that this might not work.

H. This new system should work even better.

 

Ever since the 19th century, when people were developing different ways of creating electricity, companies have looked for improved ways of producing power, using cleaner and more efficient methods.

Now a UK company called Pavegen has been working on technology that could be widely used in the future to produce electricity. 1   The company has developed a special type of floor, made of square tiles. Underneath each square, there's a system that can produce a certain amount of electricity very cheaply — from the energy created every time someone steps on it!

The creator of the floor, Laurence Kemball-Cook, came up with the idea when he was a student, and did some work experience with an energy company. The company asked him to investigate ways of providing street lighting in city centres, using energy from the sun to produce electricity.

2   One reason was that many city centres don't get enough sunlight, because of all the tall buildings. Then he thought of a better plan.

3   The right technology could be used to convert this energy into electricity — right under people's feet!

The design of the floor is actually extremely effective. 4   And the reason is that a lot of energy is produced simply because of the large numbers of people walking across the floor. In fact, the special squares are already in place in several locations with high numbers of pedestrians. These include big department stores and also an airport.

The Flooring can have other uses too, such as recording how many people visit a shopping centre at particular times. 5   For example, shop owners in the centre would be interested in knowing at which times of days they have the highest customer numbers. So the next time you visit a big shopping centre, have a careful look at the floor that you're walking across!

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27 tháng 2 2020

Tidal energy is renewable plentiful and clean -Wind will be used as an environmental friendly sources of energy . -There are many ways will be used to solve the problem of pollution

Chỉ biết từng đó hoi à! Thông cảm nha!

27 tháng 2 2020

ờ, mà sáng mai bạn học hay ntn mà có vẻ gấp vậy?

Relatives: non-defining and connective: PEG 78-84 Combine the following pairs or groups of sentences, using relative pronouns. 1 Tom had been driving all day. He was tired and wanted to stop. 2 Ann had been sleeping in the back of the car. She felt quite fresh and wanted to go on. 3 Paul wanted to take the mountain road. His tyres were nearly new. 4 Jack's tyres were very old. He wanted to stick to the tarred road. 5 Mary didn't know anything about mountains. She thought it would be quite...
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Relatives: non-defining and connective: PEG 78-84 Combine the following pairs or groups of sentences, using relative pronouns. 1 Tom had been driving all day. He was tired and wanted to stop. 2 Ann had been sleeping in the back of the car. She felt quite fresh and wanted to go on. 3 Paul wanted to take the mountain road. His tyres were nearly new. 4 Jack's tyres were very old. He wanted to stick to the tarred road. 5 Mary didn't know anything about mountains. She thought it would be quite safe to climb alone. 6 He gave orders to the manager. The manager passed them on to the foreman. 7 She said that the men were thieves. This turned out to be true. 8 The matter was reported to the Chief of Police. He ordered us all to be arrested. 9 In prison they fed us on dry bread. Most of it was mouldy. 10 We slept in the same room as a handcuffed prisoner. His handcuffs rattled every time he moved. 11 We lit a fire. It soon dried out our clothes. 12 They rowed across the Atlantic. This had never been done before. 13 The lorry crashed into a bus-load of schoolchildren. Six of them were slightly injured. 14 She refuses to use machines. This makes her work more arduous. 15 I met Mary. She asked me to give you this. 16 The women prayed aloud all night. This kept us awake. 17 The river bed is uneven and you may be in shallow water one moment and in deep water the next. This makes it unsafe for non-swimmers. 18 Mary said that there should be a notice up warning people. Mary's children couldn't swim. 19 Ann said that there were far too many notices. Ann's children could swim very well. 20 He paid me £5 for cleaning ten windows. Most of them hadn't been cleaned for at least a year. 21 Jack, the goalkeeper, and Tom, one of the backs, were injured in last Saturday's match. Jack's injuries were very slight. He is being allowed to play in today's match. This is a good thing because the team hasn't got another goalkeeper. (Combine the last three sentences only.) 22 But Tom's leg is still in bandages. He will have to watch the match from the stand. 23 Mr White didn't get a seat on his train this morning. This put him in a bad temper, and caused him to be very rude to his junior partner. The junior partner in turn was rude to the chief clerk; and so on all the way down to the office boy. 24 On Monday Tom's boss suddenly asked for a report on the previous week's figures. Tom had a hangover. He felt too sick to work fast. (Combine the last two sentences only.) 25 His boss didn't drink. He saw what was the matter and wasn't sympathetic. 26 In the afternoon he rang Tom and asked why the report still hadn't arrived. The report should have been on his desk by 2 o'clock. 27 Tom's headache was now much worse. He just put the receiver down without answering. This was just as well, as if he'd said anything he would have been very rude. 28 Fortunately Ann, the typist, came to Tom's assistance. Ann rather liked Tom. 29 Even so the report took three hours. It should have taken an hour and a half. 30 I went to Munich. I had always wanted to visit Munich.
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26 tháng 7 2018

1 Tom had been driving all day. He was tired and wanted to stop.

Tom, who had been driving all day was tired and wanted to stop.

2 Ann had been sleeping in the back of the car. She felt quite fresh and wanted to go on.

Ann, who had been sleeping in the back of the car, felt quite fresh and wanted to go on.

3 Paul wanted to take the mountain road. His tyres were nearly new.

Paul, whose tyres were nearly new, wanted to take the mountain road.

4 Jack's tyres were very old. He wanted to stick to the tarred road.

jack, whose tyres were very old,wanted to stick to the tarred road.

5 Mary didn't know anything about mountains. She thought it would be quite safe to climb alone.

marry, who didn't know anythingabout mountains, thought it would be quite safe to climb alone.

6 He gave orders to the manager. The manager passed them on to the foreman.

He gave orders to the manager who passed them on to the foreman.

7 She said that the men were thieves. This turned out to be true.

She said that the men were thieves, turned out to be true.

8 The matter was reported to the Chief of Police. He ordered us all to be arrested.

The matter was reported to the Chief of Police who ordered us all to be arrested.

9 In prison they fed us on dry bread. Most of it was mouldy.

In prison they fed us on dry bread, Most of which was mouldy.

10 We slept in the same room as a handcuffed prisoner. His handcuffs rattled every time he moved.

We slept in the same room as a handcuffed prisoner whose handcuffs rattled every time he moved.

11 We lit a fire. It soon dried out our clothes.

We lit a fire which soon dried out our clothes.

12 They rowed across the Atlantic. This had never been done before.

They rowed across the Atlantic which had never been done before

13 The lorry crashed into a bus-load of schoolchildren. Six of them were slightly injured.

The lorry crashed into a bus-load of schoolchildren. Six of whom were slightly injured.

14 She refuses to use machines. This makes her work more arduous.

She refuses to use machines which makes her work more arduous.

15 I met Mary. She asked me to give you this.

I met Mary who asked me to give you this.

16 The women prayed aloud all night. This kept us awake

The women prayed aloud all night which kept us awake

. 17 The river bed is uneven and you may be in shallow water one moment and in deep water the next. This makes it unsafe for non-swimmers.

The river bed is uneven and you may be in shallow water one moment and in deep water the next which makes it unsafe for non-swimmers.

18 Mary said that there should be a notice up warning people. Mary's children couldn't swim.

Mary whose children couldn't swim, said that there should be a notice up warning people.

19 Ann said that there were far too many notices. Ann's children could swim very well.

ann, whose children could swim very well, said that there were far too many notices.

20 He paid me £5 for cleaning ten windows. Most of them hadn't been cleaned for at least a year.

He paid me £5 for cleaning ten windows. Most of which hadn't been cleaned for at least a year.

21 Jack, the goalkeeper, and Tom, one of the backs, were injured in last Saturday's match. Jack's injuries were very slight. He is being allowed to play in today's match. This is a good thing because the team hasn't got another goalkeeper. (Combine the last three sentences only.)

Jack, whose injuries were very slight, is being allowed to play, which is a good thing because the team hasn't got another goalkeeper.

22 But Tom's leg is still in bandages. He will have to watch the match from the stand.

Tom, whose leg is still in bandages, will have to watch the match from the stand.

23 Mr White didn't get a seat on his train this morning. This put him in a bad temper, and caused him to be very rude to his junior partner. The junior partner in turn was rude to the chief clerk; and so on all the way down to the office boy.

Mr. White didn't get a seat on the train this morning, which put him in a bad temper and caused him to be very rude to his junior clerk.

24 On Monday Tom's boss suddenly asked for a report on the previous week's figures. Tom had a hangover. He felt too sick to work fast. (Combine the last two sentences only.)

Tom, who had a hangover, felt too sick to work fast.

25 His boss didn't drink. He saw what was the matter and wasn't sympathetic.

His boss, who didn’t drink, saw what was the matter and wasn't sympathetic.

26 In the afternoon he rang Tom and asked why the report still hadn't arrived. The report should have been on his desk by 2 o'clock.

The report, which should have been on his desk by 2.00, still hadn’t arrived.

27 Tom's headache was now much worse. He just put the receiver down without answering. This was just as well, as if he'd said anything he would have been very rude.

Tom, whose headache was now much worse, put down the receiver without answering, which was just as well, as if he'd said anything he would have been very rude.

28 Fortunately Ann, the typist, came to Tom's assistance. Ann rather liked Tom.

Ann, who liked Tom, came to Tom's assistance

29 Even so the report took three hours. It should have taken an hour and a half.

the report, which should have taken an hour and a half, took three hours

30 I went to Munich. I had always wanted to visit Munich.

to Munich, which I had always wanted to visit

26 tháng 7 2018

ôi mé, phục :D

1.Is it possible to remove the smell from the books that have been in ...........................................for such a long time ?(Store) 2.Many people are interested in job................. mỏe than in earning large amount of money(Satisfy) 3.The anti-doping association believes that all sports must be free of drug..............................(use) 4.the country is facing a population ..............................(Explode) 5.She claimed.............................benefit for over...
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1.Is it possible to remove the smell from the books that have been in ...........................................for such a long time ?(Store)

2.Many people are interested in job................. mỏe than in earning large amount of money(Satisfy)

3.The anti-doping association believes that all sports must be free of drug..............................(use)

4.the country is facing a population ..............................(Explode)

5.She claimed.............................benefit for over six month.(EMPLOY)

6.You can basically wear what you want but there is an....................................law that says you must not wear jeans.(write)

7.It's a .......................shame that she didn't have a better chance in life.(cry)

8.The farm house we stayed in was completely off the.............................track.(beat)

9.The police searched the house...................................(system)

10.Are we going to be saved....................by our oil supplies?(Economy)

11.Experts have tried to find a ..............to the personnel problems.(Solve)

12.The ....of the most important port of the country eliminated all trade.(block)

13.The.......................system of some countries used to be based on gold.(money)

14.he has loved her.............................ever since they first met.(passion)

15.The Importance of this...........................................has been extremely overrated.(invent)

16.he is a convinced.........of chinese communism(Follow)

17jane's party was more of an................................test than anything else.(Endure)

18.he took a job as a sales...............in a big department store.(Assist)

19.the potential benefits of this treatment.........................the risks.(weight)

20.Diskens's last novel was............................ The mystery of edwin drood.(tiTle)

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17 tháng 7 2019

1.storage

2. satisfaction

3. abuse

4. explosion

5. unemployment

6. unwritten

7. crying

8. beaten

9. systematically

10 economically

11 solution

12. blockade

13. monetary

14. passionately

15. invention

16. follower

17. endurance

18. assistant

19. outweigh

20. entitled

17 tháng 7 2019

Nguyễn Nhật Minh

15 tháng 2 2017

Đáp án là: It can be made of brass, steel, or tungsten carbide.

Easy English? English is an important global language, but that doesn't mean it is easy to learn. Many experts have tried to make English easier to learn, but the weren't always successful. In 1930, Professor CK Ogden of Cambridge University invented Basic English. It had only 850 words (and just eighteen verbs) and Ogden said most people could learn it in just thirty hours. The problem was that people who learned Basic English could write and say simple messages, but they couldn't understand...
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Easy English? English is an important global language, but that doesn't mean it is easy to learn. Many experts have tried to make English easier to learn, but the weren't always successful. In 1930, Professor CK Ogden of Cambridge University invented Basic English. It had only 850 words (and just eighteen verbs) and Ogden said most people could learn it in just thirty hours. The problem was that people who learned Basic English could write and say simple messages, but they couldn't understand the answers in 'real' English! It was also impossible to explain a word if it wasn't in the Basic English word list. RE Zachrisson, a university professor in Sweden, decided that the biggest problem for learners of English was spelling, so he invented a language called Anglic. Anglic was similar to English, but with much simpler spelling. Father' became 'faadher', 'new' became 'nue' and 'years' became 'yeerz'. Unfortunately, for some students of English, Anglic never became popular. Even easier is the language which ships' captains use: it is called 'Seaspeak'. Seaspeak uses a few simple phrases for every possible situation. In Seaspeak, for example, you don't say, 'I didn't understand, can you repeat that?" it is just, "Say a gain". No more grammar! In the age of international communication through the Internet, a new form of English might appear. A large number of the world's e-mails are in English and include. examples of 'NetLingo' like OIC (Oh, I see) and TTYL (Talk to you later). What is the role of English? 1. When did Professor Ogden invent Basic English? How many words did it have? 2. Why did Professor Zachrisson invent Anglic? What happened to it? 3. What is the feature of Seaspeak? 4. What has appeared in the age of international communication through the Internet? 5.

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14 tháng 2 2020

sory, but i'd like your đề

giúp mik với T^T II. Read the following passage and choose the correct answer. The search for alternative sources of energy has led in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Converting waste products to gases or oil is also an efficient way to dispose of waste. Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars. But to date, that process has proven expensive. Other...
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giúp mik với T^T

II. Read the following passage and choose the correct answer.
The search for alternative sources of energy has led in various directions. Many
communities are burning garbage and other biological waste products to produce
electricity. Converting waste products to gases or oil is also an efficient way to dispose of
waste.
Experimental work is being done to derive synthetic fuels from coal, oil shale and coal tars.
But to date, that process has proven expensive. Other experiments are underway to
harness - power with giant windmills. Geothermal power, heat from the earth, is also being
tested.
Some experts expect utility companies to revive hydroelectric power derived from streams
and rivers. Fifty years ago hydroelectric power provided one third of the electricity used in
the United States, but today it supplies only four percent. The oceans are another potential
source of energy. Scientists are studying ways to convert the energy of ocean currents,
tides, and waves to electricity. Experiments are also underway to make use of the
temperature differences in ocean water to produce energy.
1. Which is the best title of the passage?
A. Efficient Ways of Disposing of Waste B. The Use of Water Productions for
Energy
C. The Search for Alternative Sources of Energy D. New Discoveries in Geothermal Power
2. In the second paragraph, the phrase “synthetic fuels” could best be replaced by which of
the following?
A. Biological fuels B. Low burning fuels C. Fast burning fuels D. Artificial
made fuels
3. Which of the following is NOT mentioned in the passage as an alternative source of
energy?
A. Burning of garbage B. Geothermal power C. Synthetic fuels
D. Electricity
4. According to the author, the impracticability of using coal, oil shale and coal tars as
sources of energy is due to ___________ .
A. their being time consuming B. their being money consuming

C. the scarcity of sources D. the lack of technology their being
money consuming
5. The word “it” in the last paragrph refers to ____.
A. alternative source B. the United States C. hydroelectric power D. Electricity
6. What can be inferred from the last paragraph?
A. Hydroelectric power will be the main source of energy
B. Synthetic fuels will be the principal source of alternative energy
C. Alternative energy will come from a variety of sources
D. All alterenative production of energy will be delivered from water.

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VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less...
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VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep. ______ 2. A tornado B. The Earth has a crust under the oceans and the land that we live on. This crust made of massive areas of flat rock called tectonic plates, which float on the Earth’s mantle, the inside layer of the Earth. When the plates move slowly together, this movement forces energy through the crusts to the Earth’s surface. The energy causes the Earth to tremble and shake. ______ 3. A hurricane C. It is a very bright flash of electricity that happens in a thunderstorm. It is actually a spark that crosses the gap between two clouds or between a cloud and the Earth. It carries an enormous charge of electricity. Trees are burned, metal can be melted and people can be killed. ______ 4. An earthquake D. It is caused by earthquakes at sea. It forms when energy from an earthquake displace hundreds of cubic kilometers of water from the seabed. Large waves begin moving through the ocean from their epicenters. When it reaches shallow water near coastal areas, it increases in height. The sign comes before it strikes when the waterline suddenly retreats, exposing hundreds of meters of beach and seabed. ______ 5. A volcano E. It is a very violent windstorm. The air is concentrated and whirls up rapidly. It is grey in colour and looks like an elephant’s trunk swaying down from the clouds to touch the ground with its tip. ______ 6. A tsunami F. It is a hill or mountain formed when molten material or lave from the inside of the Earth is forced through the Earth’s crust by gases. It can produce vast clouds of very fine volcanic dust which looks like smoke. ______ 7. A sinkhole G. It is a storm where you hear thunder and see lightning. There is usually heavy rain. It is an electric storm. ______ 8. Lightning H. It is the most violent storm known on Earth. It is a tropical storm. It forms at sea and causes dangerous, stormy seas. It can reach the land and destroy buildings and trees. It can blow high waves onto the land and cause flooding. II. Complete each sentences with the correct word from the box. drought flood hurricane landslide tornado 1. When there is a ___________, a lot of water covers an area where there usually isn’t water. 2. A ___________ refers to a long time without rain. 3. When there is a ______________, a lot of rocks and earth fall down a hill. 4. A____________ is a storm with a lot of wind that moves over water. 5. A____________ is a storm in which the air moves very quickly in a circle. III. Use the verbs in the box in the correct form to complete the sentences. bury evacuate rage take recover scatter provide suffer 1. The government _____________ health and other services to the affected regions. 2. Action were _____________ to limit the effects of the floods in Quang Ninh. 3. The Red Cross helped homeless families to ____________ from the disaster through the project. 4. The majority of concerned areas have ___________ from cholera epidemics after the floods and landslides in Central America. 5. Early September, mudslides caused by heavy rains _____________ an entire village of 480 inhabitants. 6. Thousands of villagers ____________ from flood-prone areas after the warnings from the weather bureau. 7. Tiny particles of dust, smoke, salt or pollution droplets that ___________ through the air to cause haze. 8. The fires ____________ for more than a week in the southern region of Chile, which has been hit by a severe drought. MONG MỌI NGƯỜI GIÚP ĐỠ

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