I. Put one suitable word in each gap in the following text.Enjoyment is what drinking wine is all about. However, the mo...

CD

Corn dog

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. ...

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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

#Tiếng anh lớp 12

1

HT

Huy Thắng Nguyễn

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

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PT

Phan Tuấn Anh

19 tháng 1 2022 - olm

đố ai dịch dc ko dùng ứng dụng dịch nha People have been drinking teas for thousands of years, and it’s no wonder why: when something is as tasty and beneficial for your health as tea, the only question is how it could fall out of favor ― while it’s the second (1) _____ drink in the world after water, Americans tend to prefer coffee, although the U.S. has been picking up in its consumption lately. Perhaps an increase in tea drinking (2) _____ reduce obesity rates ― it’s...

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#Tiếng anh lớp 12

3

M

Mary

19 tháng 1 2022

Mọi người đã uống trà từ hàng nghìn năm nay, và không có gì ngạc nhiên tại sao: khi một thứ ngon và có lợi cho sức khỏe của bạn như trà, câu hỏi duy nhất là làm thế nào nó có thể không được ưa chuộng - trong khi đó là thức uống thứ hai (1) _____ trên thế giới sau nước, người Mỹ có xu hướng thích cà phê hơn, mặc dù gần đây Hoa Kỳ đang tăng lượng tiêu thụ. Có lẽ việc tăng uống trà (2) _____ giảm tỷ lệ béo phì - điều đó không nằm ngoài khả năng của việc truyền dịch. Hãy thành thật với (3) _____, mặc dù: dễ chịu như trong tưởng tượng, không có loại thảo mộc kỳ diệu nào (4) _____ trên một sườn núi đá ở một vùng xa xôi nào đó của thế giới - tự nó - sẽ làm bạn gầy đi cho đến khi bạn ' là một phiên bản trang trí, rực rỡ của chính bạn. Để (5) _____ cải thiện sức khỏe, bạn đã biết mình cần phải làm gì: ăn (6) _____ rau xanh, giảm lượng đường nạp vào cơ thể, thỉnh thoảng đặt cốc rượu xuống, và tập thể dục với điều gì đó tương tự như đều đặn. Điều đó nói rằng, có một số (7) ____ loại trà ngoài đó. Teas có mùi vị thơm ngon - giúp bạn không bị (8) _____ và chọn một loại nước ngọt có đường - và soda đóng gói hóa chất - và điều đó có thể thực sự hỗ trợ bạn trong (9) _____ mục tiêu ăn kiêng của mình. Một số loại trà có “nhiều hợp chất có lợi có thể chống lại và thực sự ngăn chặn (10) _____ chất béo,” Tiến sĩ Verma nói. tự điền chỗ trống đi dịch cho rồi đó

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PT

Phan Tuấn Anh

19 tháng 1 2022

và viết từ ở chỗ trống đảm bảo ko dịch dc muahaha

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CH

Chu Hồng

6 tháng 4 2020

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...

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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.

#Tiếng anh lớp 12

0

SH

Shinichi Haibara

14 tháng 9 2017

V/ choose the word or phrase (A;B;C;D) that best its each in the following passage To many people, their friends are the most important in their life. Really good friends always (1)______ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2)______ with. There are all sorts of things can (3)______ about this special relationship. It may be the result of enjoying the same activities and sharing...

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#Tiếng anh lớp 12

1

LD

Linh Diệu

14 tháng 9 2017

V/ choose the word or phrase (A;B;C;D) that best its each in the following passage

To many people, their friends are the most important in their life. Really good friends always (1)______ joys and sorrows with you and never turn their backs on you. Your best friend may be someone you have known all your life or someone you have grown (2)______ with.

There are all sorts of things can (3)______ about this special relationship. It may be the result of enjoying the same activities and sharing experiences. Most of us have met someone that we have immediately felt relaxed with as if we had known them for ages. However, it really takes you years to get to know someone well (4)______ to consider your best friend.

To the majority of us, this is someone we trust completely and (5)______ understands us better than anyone else. It's the person you can tell him or her your most intimate secrets.

1/ a/ have b/ share c/ give d/ spend

2/ a/ up b/ through c/ on d/ in

3/ a/ provide b/ bring c/ cause d/ result

4/ a/ such b/ too c/ enough d/ so

5/ a/ whose b/ whom c/ which d/ who.

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DM

Dương Minh

13 tháng 4 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Question: What could be the most suitable title for the passage?

A. Technological Innovations and Their Price

B. The Way Mobile Phones Work

C. Mobile Phones: A Must of Our Time

D. The Reasons Why Mobile Phones Are Popular

#Tiếng anh lớp 12

1

NH

Nguyen Hoang Hai

13 tháng 4 2019

Đáp án A.

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HG

Hermione Granger

10 tháng 6 2018

Fill in the blanK: living in a modern World may have its advantages but it(1)............. has its disadvantages that one disadvantages of the modern way of life which stands(2)............. from the rest is the negative influence cars have(3)............. The environment. Today, all developed societies face a(4)........... range of problems Caused by cars and(5).........vehicles. These include air and noise pollution,(6)...........traffic and the ever growing numbers in f roads in our cities....

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#Tiếng anh lớp 12

2

HH

Hắc Hường

10 tháng 6 2018

also
out
on
wide
other
congested / heavy / busy
a result / a rule
up
to
time
about
support / join
good
over

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HG

Hermione Granger

10 tháng 6 2018

Giup mik voi!!! Can gap

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DM

Dương Minh

4 tháng 2 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Question: The word “potentially” in paragraph 4 is closet in meaning to _______.

A. possibly

B. privately

C. obviously

D. certainly

#Tiếng anh lớp 12

1

NH

Nguyen Hoang Hai

4 tháng 2 2017

Đáp án A.

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NP

Nguyễn Phương Tuệ Linh

25 tháng 2 2020

Fill in the blanks with suitable word ..(1) has been a lot of discussion recently about the presentation of news on televisiọn It is said that there is more violence than in the worst horror...(2. It is necessary to bring the full horror of tragic events...(3) people's living rooms? How can children be turned away from violence if they see that the world is full of it? For...(4), in Northern Ireland, there seems to be no possibility of a normal...(5). It is also...(6) question of whether...

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#Tiếng anh lớp 12

0

DM

Dương Minh

19 tháng 7 2017

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected. The explosion in mobile phone use around the...

Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication - having a mobile phone shows that they are cool and connected.

The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn't remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer's doctor didn't agree.

What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

As the discussion about their safety continues, it appears that it's best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it's wise not to use your mobile phone too often.

Question: The word “they” in paragraph 2 refers to _______.

A. doctors

B. ideas

C. professionals

D. companies

#Tiếng anh lớp 12

1

NH

Nguyen Hoang Hai

19 tháng 7 2017

Đáp án D.

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