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24 tháng 5 2023

1.Command her English well

2.I mistook him for your friend

3.Liverpool and Everton drew two all in the match on Saturday

Will you lend me $ \(500\) on not account?

5.Venus was the most beautiful of the three goddesses

6.His salary has risen by $\(1000\) since last year

7.Fr.Jones knew nothing about the disease

8.His health showed a steady improvement

Make as little mess as possible

10.She has been delicate all her life since the day she was born

 

24 tháng 5 2023

Trl toàn câu ở đẩu ở đâu v :"))

16 tháng 1 2019

Write the second sentence in such a way that is is a similar as possible in meaning to the original sentence and use the word given in brackets and other were necessary. Do not change the form of the given world.

1. Dickens last novel was unfinished when he died.

(Without)DICKEN DIED WITHOUT HAVING FINISHED HIS LAST NOVEL.

2. All the hostages were released by the kidnappers yesterday.

(Let)THE KIDNAPPERS LET ALL THE HOTAGES GO YESTERDAY.

3. John was shocked to hear that he had failed his driving test.

(Came)iT CMAE AS A SHOCK TO JOHN TO HEAR that he had failed his driving test

4. He is likely to come.

(Probability)THERE'S A STRONG PROBABILITY THAT HE WILL COME

5. Mateo did not listen to what his doctor told him.

(Notice)MATEO TOOK NO NOTICE OF HIS DOCTOR'S ADVICE

6. I don't feel like going to the party.

(Mood)I'M IN NO MOOD TO GO TO THE PARTY

7. The new manager blames me for everything that goes wrong.

(Picking)The new manager IS ALWAYS PICKING ON me for everything that goes wrong

8. He talked about nothing except weather.

(Sole)His SOLE TOPIC OF CONVERSATION was the weather.

9. In the end, I felt I had been right to leave the club.

(Regrets)I HAD NO REGRETS HAVING LEFT the club in the end.

10. He is different from his brother in almost all aspects.

(Bears)He BEARS LITTLE RESEMBLANCE TO his brother.

16 tháng 1 2019

3, IT CAME

26 tháng 8 2016

cảm ơn bạn đã giúp mình hihi

The Penny Black It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain. Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s...
Đọc tiếp

The Penny Black

It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain.

Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s money. And when the top-hatted letter carrier came to deliver it, it was the recipient who had to pay for the postage. Letter writers employed various ruses to reduce the cost, doing everything possible to cram more words onto a page. Nobody bothered with heavy envelopes; instead, letters would be folded and sealed with wax. You then had to find a post office - there were no pillar boxes - and hope your addressee didn't live in one of the several rural areas which were not served by the system. If you were lucky, your letter would arrive (it could take days) without being read or censored.

The state of mail had been causing concern throughout the 1830s, but it was Rowland Hill, an inventor, teacher and social reformer from Kidderminster, who proposed a workable plan for change. Worried that a dysfunctional, costly service would stifle communication just as Britain was in the swing of its second industrial revolution, he believed reform would ease the distribution of ideas and stimulate trade and business, delivering the same promise as the new railways.

Hill’s proposal for the penny post, which meant any letter weighing less than half an ounce (14 grams) could be sent anywhere in Britain for about 30p in today’s money, was so radical that the Postmaster General, Lord Lichfield, said, 'Of all the wild and visionary schemes which I ever heard of, it is the most extravagant.’ Lord Lichfield spoke for an establishment not convinced of the need for poor people to post anything. But merchants and reformers backed Hill. Soon the government told him to make his scheme work. And that meant inventing a new type of currency.

Hill quickly settled on 'a bit of paper covered at the back with a glutinous wash which the user might, by applying a little moisture, attach to the back of a letter’. Stamps would be printed in sheets of 240 that could be cut using scissors or a knife. Perforations would not arrive until 1854. The idea stuck, and in August 1839 the Treasury launched a design competition open to ‘all artists, men of science and the public in general’. The new stamp would need to be resistant to forgery, and so it was a submission by one Mr Cheverton that Hill used as the basis for one of the most striking designs in history. Cheverton, who worked as a sculptor and an engineer, determined that a portrait of Queen Victoria, engraved for a commemorative coin when she was a 15-year-old princess, was detailed enough to make copying difficult, and recognisable enough to make fakes easy to spot. The words ‘Postage’ and ‘One Penny’ were added alongside flourishes and ornamental stars. Nobody thought to add the word ‘Britain’, as it was assumed that the stamps would solely be put to domestic use.

With the introduction of the new postal system, the Penny Black was an instant hit, and printers struggled to meet demand. By the end of 1840, more than 160 million letters had been sent - more than double the previous year. It created more work for the post office, whose reform continued with the introduction of red letter boxes, new branches and more frequent deliveries, even to the remotest address, but its lasting impact on society was more remarkable.

Hill and his supporters rightly predicted that cheaper post would improve the ‘diffusion of knowledge’. Suddenly, someone in Scotland could be reached by someone in London within a day or two. And as literacy improved, sections of society that had been disenfranchised found a voice.

Tristram Hunt, an historian, values the ‘flourishing of correspondence’ that followed the arrival of stamps. ‘While I was writing my biography of Friedrich Engels I could read the letters he and Marx sent between Manchester and London,’ he says. ‘They wrote to each other three times a day, pinging ideas back and forth so that you can almost follow a real-time correspondence.’

The penny post also changed the nature of the letter. Weight-saving tricks such as cross-writing began to die out, while the arrival of envelopes built confidence among correspondents that mail would not be stolen or read. And so people wrote more private things - politically or commercially sensitive information or love letters. ‘In the early days of the penny post, there was still concern about theft,’ Hunt says. ‘Engels would still send Marx money by ripping up five-pound notes and sending the pieces in different letters.’ But the probity of the postal system became a great thing and it came to be expected that your mail would not be tampered with.

For all its brilliance, the Penny Black was technically a failure. At first, post offices used red ink to cancel stamps so that they could not be used again. But the ink could be removed. When in 1842, it was determined that black ink would be more robust, the colour of the Penny Black became a sort of browny red, but Hill’s brainchild had made its mark.

Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

3
30 tháng 7 2019

Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

30 tháng 7 2019

The Penny Black

It might not have looked very impressive, but the Penny Black, now 170 years old, was the first stamp to be created and it launched the modem postal system in Britain.

Before 1840 and the arrival of the Penny Black, you had to be rich and patient to use the Royal Mail. Delivery was charged according to the miles travelled and the number of sheets of paper used; a 2-page letter sent from Edinburgh to London, for example, would have cost 2 shillings, or more than £7 in today’s money. And when the top-hatted letter carrier came to deliver it, it was the recipient who had to pay for the postage. Letter writers employed various ruses to reduce the cost, doing everything possible to cram more words onto a page. Nobody bothered with heavy envelopes; instead, letters would be folded and sealed with wax. You then had to find a post office - there were no pillar boxes - and hope your addressee didn't live in one of the several rural areas which were not served by the system. If you were lucky, your letter would arrive (it could take days) without being read or censored.

The state of mail had been causing concern throughout the 1830s, but it was Rowland Hill, an inventor, teacher and social reformer from Kidderminster, who proposed a workable plan for change. Worried that a dysfunctional, costly service would stifle communication just as Britain was in the swing of its second industrial revolution, he believed reform would ease the distribution of ideas and stimulate trade and business, delivering the same promise as the new railways.

Hill’s proposal for the penny post, which meant any letter weighing less than half an ounce (14 grams) could be sent anywhere in Britain for about 30p in today’s money, was so radical that the Postmaster General, Lord Lichfield, said, 'Of all the wild and visionary schemes which I ever heard of, it is the most extravagant.’ Lord Lichfield spoke for an establishment not convinced of the need for poor people to post anything. But merchants and reformers backed Hill. Soon the government told him to make his scheme work. And that meant inventing a new type of currency.

Hill quickly settled on 'a bit of paper covered at the back with a glutinous wash which the user might, by applying a little moisture, attach to the back of a letter’. Stamps would be printed in sheets of 240 that could be cut using scissors or a knife. Perforations would not arrive until 1854. The idea stuck, and in August 1839 the Treasury launched a design competition open to ‘all artists, men of science and the public in general’. The new stamp would need to be resistant to forgery, and so it was a submission by one Mr Cheverton that Hill used as the basis for one of the most striking designs in history. Cheverton, who worked as a sculptor and an engineer, determined that a portrait of Queen Victoria, engraved for a commemorative coin when she was a 15-year-old princess, was detailed enough to make copying difficult, and recognisable enough to make fakes easy to spot. The words ‘Postage’ and ‘One Penny’ were added alongside flourishes and ornamental stars. Nobody thought to add the word ‘Britain’, as it was assumed that the stamps would solely be put to domestic use.

With the introduction of the new postal system, the Penny Black was an instant hit, and printers struggled to meet demand. By the end of 1840, more than 160 million letters had been sent - more than double the previous year. It created more work for the post office, whose reform continued with the introduction of red letter boxes, new branches and more frequent deliveries, even to the remotest address, but its lasting impact on society was more remarkable.

Hill and his supporters rightly predicted that cheaper post would improve the ‘diffusion of knowledge’. Suddenly, someone in Scotland could be reached by someone in London within a day or two. And as literacy improved, sections of society that had been disenfranchised found a voice.

Tristram Hunt, an historian, values the ‘flourishing of correspondence’ that followed the arrival of stamps. ‘While I was writing my biography of Friedrich Engels I could read the letters he and Marx sent between Manchester and London,’ he says. ‘They wrote to each other three times a day, pinging ideas back and forth so that you can almost follow a real-time correspondence.’

The penny post also changed the nature of the letter. Weight-saving tricks such as cross-writing began to die out, while the arrival of envelopes built confidence among correspondents that mail would not be stolen or read. And so people wrote more private things - politically or commercially sensitive information or love letters. ‘In the early days of the penny post, there was still concern about theft,’ Hunt says. ‘Engels would still send Marx money by ripping up five-pound notes and sending the pieces in different letters.’ But the probity of the postal system became a great thing and it came to be expected that your mail would not be tampered with.

For all its brilliance, the Penny Black was technically a failure. At first, post offices used red ink to cancel stamps so that they could not be used again. But the ink could be removed. When in 1842, it was determined that black ink would be more robust, the colour of the Penny Black became a sort of browny red, but Hill’s brainchild had made its mark.

Choose the correct letter, A, B, C or D.

1. One of the characteristics of the postal service before the 1840s was that

A. postmen were employed by various organisations.
B. letters were restricted to a certain length.
C. distance affected the price of postage.
D. the price of delivery kept going up.

2. Letter writers in the 1830s

A. were not responsible for the cost of delivery.
B. tried to fit more than one letter into an envelope.
C. could only send letters to people living in cities.
D. knew all letters were automatically read by postal staff.

3. What does the text say about Hill in the 1830s?

A. He was the first person to express concern about the postal system.
B. He considered it would be more efficient for mail to be delivered by rail.
C. He felt that postal service reform was necessary for commercial development.
D. His plan received support from all the important figures of the day.

I. VOCABULARY (05 câu) 1. If I had a lot of money now, I a new car. A. would buy B. would sell C. would take D. would make 2. Do you think there would be less conflict in the world if all people the same language? A. listened B. spoke C. read D. wrote 3. A number of cleaning products contain chemicals A. safeful B. helpful C. harmful D. hopeful 4. The gases from the exhausts of cars have also increased ...
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I. VOCABULARY (05 câu)

1. If I had a lot of money now, I a new car.

A. would buy B. would sell

C. would take D. would make

2. Do you think there would be less conflict in the world if all people the same language?

A. listened B. spoke C. read D. wrote

3. A number of cleaning products contain chemicals

A. safeful B. helpful C. harmful D. hopeful

4. The gases from the exhausts of cars have also increased pollution in most cities.

A.land B. sand

C. water D. air

5. The death rate would if hygienic conditions were improved.

A. decrease B. increase C. be D. up

II. VERB FORM (05 câu)

1. If I you, I would do that.

A. am B. were C. are D. had been

2. If I were offered the job, I think I it.

A. take B. will take C. would take D. would have taken

3. I would be very surprised if he .

A. refuses B. refused C. had refused D. would refuse

4. If she sold her car, she much money.

A. gets B. would get C. will get D. would have got

5. If someone in here with a gun, I would be very frightened.

A. would walk B. walks C. had walked D. walked

III. WORD FORM (05 câu)

1.People believe that the water has brought cancer to the local residents.

A. pollute B. polluted C.pollution D.polluting

2.Light pollution make us to see the stars in the sky.

A.able` B.able to C.unable D.unable to

3.Noise is considered as pollution.

A.environment B.environmental C.environmentally D.environmentalist

4. habitats have been destroyed in recent years.

A.Nature B.Natured C.Nation D.Natural

5.Water samples collected at these villages were seriously with bacteria. A.contaminated B.contamination C.contaminational D.contaminating

IV. PREPOSITION (05 câu)

1. The course starts 3rd November and ends January.

A. in/on B. on/in C. of/with D. for/of

2. Are you interested learning foreign language?

A. in B. to C. at D. from

3. I was disappointed the grade I received on my last exam.

A. to B. for C. with D. at

4. We are looking forward new possibillities.

A. on B. in C. of D. to

5. The park was named a young hero, Le Van Tam.

A. up B. after C. take off D. take on

22:02

0
dịch sang tiếng việt giùm vớiGay Community Calls for End to US Policy Banning Blood Donations Members of the gay community in the U.S. are calling for the lifting of a federal ban on blood donations by gay.After this week's shooting at a gay nightclub in Orlando, Florida, thousands of homosexuals lined up to donate blood to survivors. However, they were turned away because of U.S. government rules that prohibit gay men from giving blood.  In the wake of the shootings, the policy is...
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dịch sang tiếng việt giùm với

Gay Community Calls for End to US Policy Banning Blood Donations

 

Members of the gay community in the U.S. are calling for the lifting of a federal ban on blood donations by gay.

After this week's shooting at a gay nightclub in Orlando, Florida, thousands of homosexuals lined up to donate blood to survivors. However, they were turned away because of U.S. government rules that prohibit gay men from giving blood.

 
 

In the wake of the shootings, the policy is causing anger and outrage among gays.

 
 

The policy was put in place in the 1980s during the AIDS epidemic, and it barred gay and bisexual men from donating blood out of fear that they were at high risk of being HIV-positive and could contaminate the blood supply.

 
 

Public health advocates, who argued for lifting the blood donation ban last year, say the policy does not keep pace with some recent scientific developments to safeguard the blood supply against HIV.

 
 

Sean Cahill, director of health policy research at the Fenway Institute in Boston, said the revised policy is still unfair.

 
 

According to Cahill, the so-called nucleic acid test is now available to detect the presence of HIV in a pint of blood in less than two weeks, compared with the months it used to take. The test is performed on all blood samples to make sure they don't contain the virus.

1
19 tháng 6 2016

Các thành viên của cộng đồng đồng tính ở Mỹ đang kêu gọi cho việc dỡ bỏ lệnh cấm liên bang về hiến máu của người đồng tính.
Sau khi chụp trong tuần này tại một hộp đêm đồng tính ở Orlando, Florida, hàng ngàn người đồng tính xếp hàng để hiến máu để sống sót. Tuy nhiên, họ bị từ chối bởi vì các quy tắc của chính phủ Hoa Kỳ cấm đàn ông đồng tính từ hiến máu.Trong sự trỗi dậy của các vụ nổ súng, chính sách này đang gây ra sự giận dữ và phẫn nộ về những người đồng tính.Chính sách này đã được đưa ra vào những năm 1980 trong đại dịch AIDS, và nó bị cấm đàn ông đồng tính và lưỡng tính từ hiến máu chỉ vì sợ rằng họ có nguy cơ cao bị nhiễm HIV dương tính và có thể gây ô nhiễm nguồn cung cấp máu.Bảo vệ sức khỏe công cộng, người ủng hộ cho dỡ bỏ lệnh cấm hiến máu năm ngoái, nói rằng chính sách này không bắt kịp với một số phát triển khoa học gần đây để bảo vệ các nguồn cung cấp máu chống lại HIV.Sean Cahill (đây là tên riêng), giám đốc nghiên cứu chính sách y tế tại Viện Fenway ở Boston, cho biết các chính sách đã được điều chỉnh vẫn không công bằng.Theo Cahill, xét nghiệm acid nucleic cái gọi là bây giờ đã có để phát hiện sự hiện diện của HIV trong một nửa lít máu trong vòng chưa đầy hai tuần, so với các tháng nó được sử dụng để thực hiện. Xét nghiệm này được thực hiện trên tất cả các mẫu máu để đảm bảo chúng không chứa virus.

Rewrite the following sentences without changing their original meaning : 1/ Before she went to bed last night , she had done all her homework \(\rightarrow\) After ............................................................................................................. 2/ Minh went to bed , then he heard a strange noise \(\rightarrow\) Before ............................................................................ 3/ He spends 10 minutes walking to school every day...
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Rewrite the following sentences without changing their original meaning :

1/ Before she went to bed last night , she had done all her homework

\(\rightarrow\) After .............................................................................................................

2/ Minh went to bed , then he heard a strange noise

\(\rightarrow\) Before ............................................................................

3/ He spends 10 minutes walking to school every day

\(\rightarrow\) It takes ..................................................................................

4/ This is the first time she visited Hanoi

\(\rightarrow\) She ................................................................................

5/ It is 10 years since she met her classmates

\(\rightarrow\) She ............................................................................................

6/ The last time we met him was 5 months ago

\(\rightarrow\) We ...........................................................................................

7/ Jane never allowed her worries to interfere with her job

\(\rightarrow\) Jane didn't let .........................................................................

8/ I cannot force you to do this if you don't want

\(\rightarrow\) I can't make ................................................................................

HELP ME !!!!!!!

1
28 tháng 9 2019

Rewrite the following sentences without changing their original meaning :

1/ Before she went to bed last night , she had done all her homework

After HAVING DONE ALL HER HOMEWORK LAST NIGHT, SHE WENT TO BED.

2/ Minh went to bed , then he heard a strange noise

Before HAVING GONE TO BED, MINH HEARD A STRANG NOISE.

3/ He spends 10 minutes walking to school every day

It takes HIM 10 MINUTES TO WALK TO SCHOOL EVERYDAY.

4/ This is the first time she visited Hanoi

She HASN'T VISITED HANOI BEFORE.

5/ It is 10 years since she met her classmates

She HASN'T MET HER CLASSMATES FOR 10 YEARS.

6/ The last time we met him was 5 months ago

We HAVEN'T MET HIM FOR 5 MONTHS.

7/ Jane never allowed her worries to interfere with her job

Jane didn't let HER WORRIES INTERFERE WITH HER JOB.

8/ I cannot force you to do this if you don't want

I can't make YOU DO THIS ID YOU DON'T WANT.

1. This plane could get over the mountain if it rose to 10000 feet . This means it ........... over the mountain a: would succeed in getting b. got c. was able to get d. had got 2: The plane was then able to rise . This means it ........ a. could rise b. might rise c. might succeed in rising d. rose 3. Byrd knew that he would be able to reach the South Pole . It would be ........... a. impossible b. necessary ...
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1. This plane could get over the mountain if it rose to 10000 feet . This means it ........... over the mountain

a: would succeed in getting b. got c. was able to get d. had got

2: The plane was then able to rise . This means it ........

a. could rise b. might rise c. might succeed in rising d. rose

3. Byrd knew that he would be able to reach the South Pole . It would be ...........

a. impossible b. necessary c. able d. possible

4. He ought not .... him but he did

a. to tell b. to telling c. tell d. to have told

5. I'd rather you .......... that

a.do b. don't do c. won't do d. didn't

6. ............... run so fast ? a. dose he need b. need he to c. need he d. needs he

7. He didn't need ........... out of his room in Moscow .

a. go b. to going c. going d. to go

8.I could not ... it even thought i had wanted to do so

a. had bought b. buy c. buying d. have bought

9. I left my pen this box , but it isn't there now . Someone ....... it

a. must have taken b. must take c. had to take d. had taken

10. Marry received 100 dolars from her sister . she.......... the ring she she wanted . It only cocts 10 dollars

a. buys b. had bought c. bought d. might have bought

11. It lost my honda last week . I hadn't locked it . You ....... it

a. should lock b. should have locked c. ought to lock d. could lock

12. In 1900 the word had no deaths from rabies . Scientists ........ wonderful vaccine .

a. has discovered b. discovered c. must have discovered d. should have discover

1
7 tháng 10 2017

1. This plane could get over the mountain if it rose to 10000 feet . This means it ........... over the mountain

a: would succeed in getting b. got c. was able to get d. had got

2: The plane was then able to rise . This means it ........

a. could rise b. might rise c. might succeed in rising d. rose

3. Byrd knew that he would be able to reach the South Pole . It would be ...........

a. impossible b. necessary c. able d. possible

4. He ought not .... him but he did

a. to tell b. to telling c. tell d. to have told

5. I'd rather you .......... that

a.do b. don't do c. won't do d. didn't

6. ............... run so fast ? a. dose he need b. need he to c. need he d. needs he

7. He didn't need ........... out of his room in Moscow .

a. go b. to going c. going d. to go

8.I could not ... it even thought i had wanted to do so

a. had bought b. buy c. buying d. have bought

9. I left my pen this box , but it isn't there now . Someone ....... it

a. must have taken b. must take c. had to take d. had taken

10. Marry received 100 dolars from her sister . she.......... the ring she she wanted . It only cocts 10 dollars

a. buys b. had bought c. bought d. might have bought

11. It lost my honda last week . I hadn't locked it . You ....... it

a. should lock b. should have locked c. ought to lock d. could lock

12. In 1900 the word had no deaths from rabies . Scientists ........ wonderful vaccine .

a. has discovered b. discovered c. must have discovered d. should have discover

D
datcoder
CTVVIP
18 tháng 11 2023

1. D          2. A           3. C             4. B            5. F

Rachel Carson, an ecologist, a biologist, and a writer, was born in 1907 in Springdale, Pennsylvania. As a small girl, she was an avid reader and soon showed a keen interest in the natural world and writing. 1 She had her first story about animals published in a magazine when she was in the fourth grade. She graduated from Pennsylvania College for Women (now Chatham University) in 1929, studied at the Woods Hole Marine Biological Laboratory, and received her MA in zoology from Johns Hopkins University in 1932.

Initially, Rachel Carson worked for the US Bureau of Fisheries as a part-time science writer. 2 Part of her job was to interest the public in marine and freshwater biology via radio programmes. She then spent the next few years serving as a marine scientist and editor for the US Fish and Wildlife Service. There, she became famous for her writings on environmental pollution and the natural history of the sea, 3 She warned the public about its negative long-term effects. Climate change, rising sea-levels, melting Arctic glaciers, decreasing animal populations are part of her work. In her most influential book, Silent Spring (1962), Rachel Carson strongly disapproved of the widespread use of pesticides such as DDT. 4 Firstly, Silent Spring suggested a much-needed change in people's way of life and called for new policies to protect humans and the environment. She then was criticised by the chemical industry and some government officials, but never gave up. 5 The book eventually prompted a change in national policy, leading to the enactment of a national ban of pesticides on agricultural farming. Additionally, it helped spark the environmental movement, resulting in the establishment of the United States Environmental Protection Agency. That's why she was called the mother of modern ecology.

Rachel Carson died of breast cancer in 1964. However, her work continues to inspire new generations to protect all the living world.

Tạm dịch

Rachel Carson, nhà sinh thái học, nhà sinh vật học và nhà văn, sinh năm 1907 tại Springdale, Pennsylvania. Khi còn là một cô gái nhỏ, cô ấy là một người ham đọc sách và sớm thể hiện sự quan tâm sâu sắc đến thế giới tự nhiên và viết lách. Cô ấy có câu chuyện đầu tiên về động vật được đăng trên một tạp chí khi cô ấy học lớp bốn. Cô tốt nghiệp Đại học Phụ nữ Pennsylvania (nay là Đại học Chatham) vào năm 1929, học tại Phòng thí nghiệm Sinh học Biển Woods Hole và nhận bằng Thạc sĩ về động vật học tại Đại học Johns Hopkins vào năm 1932.

Ban đầu, Rachel Carson làm việc cho Cục Thủy sản Hoa Kỳ với tư cách là một nhà văn khoa học bán thời gian. Một phần công việc của cô là thu hút sự quan tâm của công chúng đến sinh vật biển và nước ngọt thông qua các chương trình phát thanh. Sau đó, cô đã dành vài năm tiếp theo với tư cách là nhà khoa học biển và biên tập viên cho Cơ quan Cá và Động vật hoang dã Hoa Kỳ. Ở đó, cô trở nên nổi tiếng với những bài viết về ô nhiễm môi trường và lịch sử tự nhiên của biển, Cô cảnh báo công chúng về những tác động tiêu cực lâu dài của nó. Biến đổi khí hậu, mực nước biển dâng cao, băng tan ở Bắc Cực, giảm quần thể động vật là một phần công việc của cô. Trong cuốn sách có ảnh hưởng nhất của mình, Silent Spring (1962), Rachel Carson cực lực phản đối việc sử dụng rộng rãi thuốc trừ sâu như DDT. Đầu tiên, Silent Spring đề xuất một sự thay đổi rất cần thiết trong cách sống của mọi người và kêu gọi các chính sách mới để bảo vệ con người và môi trường. Sau đó, cô bị chỉ trích bởi ngành công nghiệp hóa chất và một số quan chức chính phủ, nhưng không bao giờ bỏ cuộc. Cuốn sách cuối cùng đã thúc đẩy một sự thay đổi trong chính sách quốc gia, dẫn đến việc ban hành lệnh cấm toàn quốc về thuốc trừ sâu trong canh tác nông nghiệp. Ngoài ra, nó đã giúp châm ngòi cho phong trào môi trường, dẫn đến việc thành lập Cơ quan Bảo vệ Môi trường Hoa Kỳ. Đó là lý do tại sao cô được gọi là mẹ của hệ sinh thái hiện đại.

Rachel Carson qua đời vì bệnh ung thư vú vào năm 1964. Tuy nhiên, công việc của cô vẫn tiếp tục truyền cảm hứng cho các thế hệ mới bảo vệ tất cả thế giới sống.