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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
III. Complete the second sentence so that it has the same meaning to the first one.
1.We must pay the bill at once.
The bill must be paid at once
2.Many people in the world speak English.
English is spoken in the world
3.This question is difficult to understand.
It’s a difficult question to understand
4.I will repair your bicycle tomorrow afternoon.
Your bicycle will be repaired tomorrow afternoon
5.“Don’t throw things away,” Miss Linda said to the students. Miss Linda asked the children not to throw things away
6.Penicillin can cure many dangerous diseases.
Many dangerous diseases can be cured by penicillin
7.Does your country export rice to Britain?
Is rice exported to Britain by your country?
8.I was very delighted that I passed the final exams.
I was very delighted to pass the final exam
9.Keeping the environment clean is very important
It's very important to keep the environment clean
10.They will show the time machine to the public when thay finish it
The time machine will be shown to the public when it is finished
11.He was delighted to receive his aunt's letter
He was delighted that his aunt sent him a letter
12.Old car tires are recycled to make shoes and sandals People recycle old car tires to make shoes and sandals
13.I'm very sad that I wasn't accepted in that group
I'm very sad not to be accepted in that group
30. They ………. haven't replied to the letter we sent two months ago
A. still B. yet C. already D. ever
31. His face looks …………., but I can’t remember his name.
A. similar B. alike C. memorial D. familiar
32. The fire officer is coming to …………the building tomorrow.
A. look B. inspect C. witness D. watch
33. The boys hurt ……….. when they injured down from the tree.
A. one another B. each other C. himself D. themselves
34. I’m sure they were …………lies
A. making B. telling C. doing D. saying
35. She’d rather die than ………..Peter.
A. she married B. to marry C. marrying D. marry
36. Eric is going to be very lonely living by himself in that remote area.
A. Eric will live by himself in that distant place and he will feel very lonely.
B. Eric enjoys being on his own, so living in that remote place won’t bother him much.
C. That area is very far from the city, so Eric will be alone most of the time.
D. Remote areas are often lonely to live in, but Eric enjoys the solitude.
37. You could hardly have decided on a less secure career than that of a novelist.
A. There are some careers that are not as secure as that of a novelist.
B. If it is security that you are after, you should try being a novelist.
C. In deciding to be a novelist, you have probably chosen the least secure career possible.
D. There are probably better ways of securing your future than becoming a novelist.
38. Only Mike has the expertise to carry out this project.
A. This project can only be carried out by someone with the same knowledge and skills that Mike has.
B. There is only one person with the skill required for this project, and that is Mike.
C. Mike should be the one to do the project because he knows so much.
D. Mike has to be consulted about this project because he knows more than anyone else.
39. If I had known you needed a hand painting your house, I would have helped you.
A. I didn’t help you to paint your house because I had no idea that you were doing it.
B. I am planning to help you to paint your house whenever you are ready.
C. Let me know when you are going to paint your house, and I will lend a hand.
D. You didn’t tell me you needed help painting your house; otherwise, I’d have assisted you.
40. Ellen would trust her mother, but not her sister, with anything.
A. Although Ellen finds her mother completely trustworthy, she does not feel the same about her sister.
B. Ellen felt she could trust neither her mother nor her sister with anything.
C. There was nothing that Ellen would not trust her mother, as well as her sister, with.
D. Neither Ellen nor her sister feel that they can trust their mother with everything.
41. Having prepared for the worst, they were pleasantly surprised to find themselves by
passed by the hurricane.
A. Even if the hurricane had hit them, they wouldn’t have been affected much.
B. It was such a relief when the hurricane did not strike them, though they had prepared for the worst.
C. Had they not made such extensive preparations, they would have suffered even worse damage.
D. While they had made preparations for the hurricane, it was still a relief that they did not suffer much damage.
42. In Nepal, literacy increased by approximately 40 percent from the early 1950s to the end
of the century.
A. 40 percent of the people of Nepal became literate during the latter half of the 20th century.
B. At the end of the 20th century, about 40 percent of the Nepalese were literate, much higher than in the early 1950s.
C. About 40 percent more of the Nepalese population became literate during the second half of the 20th century.
D. From the middle to the end of 20th century, only about 40 percent of Nepalese people could read and write.
43. Though once quite fatal, the threat of pneumonia has been greatly reduced as a result of
antibiotic treatment.
A. A threatening disease which used to be fatal in the past, pneumonia has now been eliminated by antibiotic treatment.
B. Pneumonia was a rather deadly disease in the past, but antibiotic treatment has lessened its dangers very much.
C. Despite its dangers being significantly reduced thanks to antibiotics, pneumonia can still be rather deadly.
D. In order to lessen its deadliness, the threatening disease pneumonia must be treated with antibiotics.
44. The eradication of snakes by humans has resulted in an abrupt rise in rodent populations
in certain areas.
A. The number of rodents living in a certain place is directly connected to how many snakes humans are killing.
B. The rate of elimination by humans not only of snakes but also of rodents has gone up significantly in some areas.
C. Had humans not eliminated the snakes in some areas, there would be much smaller populations of rodents living there.
D. By skilling snakes, humans have caused the numbers of rodents in some places to increase drastically.
45. Few novels offer as sharp a commentary on the injustices faced by Blacks as Richard
Wright’s Native Son.
A. Unlike most novels, Native Son was based on wrongs Richard Wright himself, as a Black, had faced.
B. Native Son, by Richard Wright, is one of his many sharply critical novels about the injustices faced by Blacks.
C. Richard Wright’s Native Son comments more cuttingly than most novels on the unfairness Blacks confront.
D. Quite a few novels, such as Richard Wright’s Native Son, comment cuttingly on the unfairness confronted by Blacks
B. Rewite the following sentences :
1. Why don't we go to the canteen for a drink ?
---> How about going to the canteen for a drink ?
3. She went to bed early because of her sickness.
---> Because she was sick , she went to bed early
II/
Are you looking for a cheap, clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from our sun. At present, most of our electricity comes from the use of coal, and gas, oil or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the earth is enough to provide power for the total population. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the sun s energy is used to heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy, too.
1/ Questions :
a. What is solar power like ?
---> It's cheap, clean, effective
b. Where are the solar panels placed ?
---> Solar panels are placed on the roof of a house
VI / Give the correct form of the verbs :
1/ If we ( replace )......replace.... ordinary light bulbs with energy-saving bulbs, we can save a lot of money.
2/ I suggest that we ( use )...using....... paper bags instead of plastic bags.
3/ Tuan ( porget ) ....forgot...... to turn off the television when he left for school.
4/ He suggested ( collect )....collecting ....... garbage to protect the environment.
VII/ Write the sentences using the words provided :
1. it /necessary / you to reduce the amount / garbage you produce.
---> It's necessary for you to reduce the amount of garbage you produce.
VIII. Choose the best option to complete each of the following sentences :
1/......... air is one of the many problems we have to solve.
A. Pure B. Polluted
C. Dust C. Pleasant
2/"................." means a piece of land full of rubbish.
A. junkyard B. treasure
C. hedge C. stream
3/ If you want to save money, you should ......... the amount of water your family uses.
A. increase B. reduce
C. adapt D. repair
4. I'm disappointed ............ people have spoiled this area.
A. that B. when
C. if D. how
5. Minh's English is excellent. He speaks .........
A. perfectly English
B. English perfectly
C. perfect English
D. English perfect
6. We couldn't go on a picnic as planned............. it was raining.
A. however B. but
C. because D. so
7. If you are busy, we........... this by ourselves.
A. will do B. did
C. would do D. doing
8. I suggest ........... showers instead of talking bath.
A. take B. talking
C. to take D. to talking
9. Scientists are looking for an ............ way to reduce energy consumption.
A. effect B. effects
C. effective D. effectively
13. He was born............. March 25, 1992.
A. at B. on
C. in D. for
#Yumi
Underline the most suitable coniunction in each sentence.
l. Even though/ When/ Becouse the New Year's Eve is a very important moment of the year, the whole family stays awake to experience it
2. We have finished the preparations on time for the party while/ even though/ however we had a lot of things to do.
3. While/ When/ Since you come to the Lantern Festival in Hoi An, you may be surprised about the beauty of the floating lanterns.
4. You can get there by airplane, but/ and/ so it is a bit costly
5. Chung coke is very tasly, but/ however/ additionally, it is a type of coke for festivals more than for a daily life.
Fill in the blank with the correct form of the given word.1. Participating in the Lim Festival is one the most ...MEMORIAL...events in (memory)
2. This is a..YEARLY.. festival in vietnam( year)
3. When do the...PREPARATIONS... for the festival begin( prepare)
4. Among many traditional activities at the Hung King Temple Festival, I was ....festival in Vietnam year .for the festival begin? prepare perform =>0 the most interested in the Xoan singing...PERFORMANCES...(perform )
5 At the beginning of the festival, people have to do a welcome...RITUAL....(rite)
II- Use a relative pronoun/ adverb to combine each pair of the sentences below.
1. You sent me a present. Thank you very much for it.
Thank you very much for the present which you sent me
2. Romeo and Juliet were lovers. Their parents hated each other.
Romeo and Juliet whose parents hated each other were lovers.
3. This is Mrs. Jones. Her son won the championship last year.
This is Mrs. Jones whose son won the championship last year.
4. This is the house. We often stay in this house in the summer.
This is the house where we often stay in the summer.
5. That was the time. He managed the enterprise at that time.
That was the time when he managed the enterprise
6. I was sitting in a chair. It suddenly collapsed.
I was sitting in the chair which suddenly collapsed.
7. This is the story of a man. His wife suddenly loses her memory.
This is the story of the man whose wife suddenly loses her memory.
8. Charlie Chaplin died in 1977. His films amused millions of people in the world.
Charlie Chaplin whose films amused millions of people in the world died in 1977
9. Please post these letters. I wrote them this morning.
Please post these letters which I wrote this morning.
10. The building is the church. Its tower can be seen from afar.
The building is the church whose tower can be seen from afar.
11. I’ll show you the second-hand bookshop. You can find valuable books in this shop.
I’ll show you the second-hand bookshop in which you can find valuable books
12. The police want to know the hotel. Mr. Bush stayed at this hotel two weeks ago.
The police want to know the hotel at which Mr. Bush stayed two weeks ago.
13. The reasons are basic grammatical ones. I’m scolded by the teacher fro these reasons.
The reasons why I’m scolded by the teacher are basic grammatical ones
14. I have not decided the day. I’ll go to London on that day.
I have not decided the day when I’ll go to London
15. The airport is the most modern one. We are going to arrive at this airport.
The airport at which we are going to arrive is the most modern one
16. She doesn’t want to speak to the cause. She divorced her husband for this cause.
She doesn’t want to speak to the cause for which/why She divorced her husband
17. He doesn’t want to sell the house. He was born in this house.
He doesn’t want to sell the house in which he was born
18. The teacher is Mr. Pike. We studied with him last year.
The teacher whom We studied with last year is Mr. Pike
19. The problem has been discussed in class. We are very interested in it
The problem which we are very interested in has been discussed in class
20. Many diseases are no longer dangerous. People died of them years ago.
Many diseases which people died of years ago are no longer dangerous
21. Do you see my pen? I have just written the lesson with it.
Do you see my pen which I have just written the lesson with ?
22. I like standing at the windows. I can see the park from this window.
I like standing at the windows from which I can see the park
23. The boy is my cousin. You made fun of him
The boy whom you made fun of is my cousin
24. This is rare opportunity. You should take advantage of it to get a better job.
This is rare opportunity of which You should take advantage to get a better job.
25. This matter is of great importance. You should pay attention.
This matter is of great importance which You should pay attention.
recycling/ nothing/ list/ vegetables/ something/ save/ trouble/ polluting/ taking. Our environment is in (1)trouble. Modern ways of living and today’s industries are (2)polluting it. Most people think there is (3) nothing they can do. This is not true. Everyone can do something to help (4) save our environment. Here is a (5)list of things you can do.
-
- Help to cut pollution by (6)taking the bus to work instead of your car.
- Buy fruit and (7) vegetables that have not been treated with pesticides.
- Recycle all your cans, bottles and paper. There should be a (8) recycling center somewhere near your home, so take them there.
Our environment is in trouble. Modern ways of living and today’s industries are polluting it. Most people think there is nothing they can do. This is not true. Everyone can do something to help save our environment. Here is a list of things you can do.
- Help to cut pollution by taking the bus to work instead of your car.
- Buy fruit and vegetables that have not been treated with pesticides.
- Recycle all your cans, bottles and paper. There should be a recycling center somewhere near your home, so take them there.
Most of the world’s energy comes from the sun. The sun’s energy is in wood, oil, and other things that people use for energy.
VI. Read the text then answer true or false
People use many sources of energy. Ancient people used only their arms, hands, and simple tools until they discovered fire. Later, people learned to use the energy of the wind to sail ships. Then they learned to use animals to do work. In the eighteenth and nineteenth centuries, people began to use machines. The first machines used steam. They burned coal to heat water. The hot water turned into steam, and the steam engine did the work. Later, people began to use the gasoline engine, and today people are using nuclear energy. Energy is one of the basic concepts, or ideas, of physics. It is the ability to do work. Without energy we could live. We need energy to work, and scientists are always looking for new sources of energy.
1. None of the world’s energy comes from the sun. F
2. Wind, steam, and gasoline are sources of energy. T
3. People have never used nuclear energy. F
4. Energy is the ability to do work. T
5. We need new sources of energy. T
1 thunder
2 set
3 slice
4 piece/sheet
5 flight
6 piece