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C
Genetically modified (GM) foods (轉(zhuǎn)基因食品) have been around for many years. They are developed for a number of different reasons — to fight disease,resist pests,improve nutrition,survive drought — and are mainly found in our food supply in processed foods using com,soybeans and as feed for farm animals. Are they safe? How do they affect the environment? Can they improve food security? Is the world better off with or without GM foods?
Supporters of GM foods say that farmers who grow these crops are able to use fewer environmentally damaging farm chemicals. The increased output is important to feeding the world's growing population. And many studies have shown that GM foods are safe to eat and that there's no actual evidence of any health risks. They also add that the oods have been thoroughly examined and have gamed approval for eating from a wide variety of government and scientific bodies.
Critics,however,are concerned that these foods have not been strictly tested and are potentially dangerous for both the environment and people's health. They say farmers growing GM crops have actually increased their use of farm chemicals. And the widespread use of the crops,they say,has also led to an increase in weeds and insects that have resistance to farm chemicals. And,they argue,there is still no scientific evidence of the long-term safety of these foods.
Four scientists recently took on those questions in a debate,facing off two against two on GM foods. In these Oxford-style debates,the team that gets the most people on its side by the end is the winner.
Before the debate,the audience at the Kaufman Music Center in New York voted 32 percent in favor of GM foods,with 30 percent against and 38 percent undecided. Afterward,60 percent agreed with GM foods,and 31 percent disagreed — making the side arguing in favor of GM foods the winners of this debate.
29. What's the main purpose of Paragraph 1 ?
A. To advertise GM foods.
B. To show what GM foods are.
C. To introduqe the topic of the text.
D. To explain why GM foods are developed.
30. What's the main focus of the debate?
A. The necessity of producing GM foods.
B. Whether GM crops can help to avoid hunger.
C. Whether GM. foods are scientifically examined.
D. GM foods’ effect on human health and the environment.
31. What do we know about the debate at the Kaufman Music Center?
A. There were four votes for the debate.
B. About half of the audience had no idea about it.
C. It was a face-to-face debate between two and two.
D. The winner of the debate was decided by the judges.
32. What percentage of the audience supported the winner of the debate?
A. 31 percent. B. 38 percent.
C. 60 percent. D. 92 percent.
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B
The latest technology inventions in 3D printing are rapidly changing how things are being made.
At the International Manufacturing (制造業(yè)) Technology Show in Chicago,a little-known car maker became popular by manufacturing a car at the show.
It was a fully functional car that was 3D printed in 44 hours and assembled(裝配) in two days. The car is called a “Strati”,Italian for layers,so named by its designer Michele Anoe because the entire structure of the car is made from different layers of materials.
The average car has more than 20,000 parts but this latest technology reduces the number of parts to 40. uThe goal here is to get the number of parts down and to drop the tooling costs to almost zero,” said John B. Rogers Jr.? chief manager of Local Motors. “Cars are ridiculously complex,” he added,referring to the thousands of bits and pieces that are sourced,assembled and connected to make a vehicle.
This technology can use a variety of materials to manufacture anything in complicated detail. Imagine if you could order a new car online according to your needs and pick it up of have it delivered to you the next day at a small part of the cost of buying one from a shop? What if you could make small parts at a lower cost rather than buying them from a parts supplier? What a great change would that be for the industry? It's already happening.
One of the challenges with collecting antique (古老的) cars is replacing parts. You can't buy them because they're not in use and it's difficult to find the parts that fit. But now people can use 3D printing technology to make parts for their cars.
John B. Rogers Jr. believes that in the near future a car will be made in just 60 minutes. The company is already organizing a worldwide network of “Microfactories” where you can order and pick up your personalized car.
25. What impressed people deeply at the show?
A. A car maker.
B. A 3D-printed car.
C. The variety of cars.
D. Technology inventions.
26. What do we know about the “Strati” car?
A. It's a model car.
B. It was made in Italy.
C. It has over 2 ,000 parts.
D. It was made within four days.
27. The questions in Paragraph 5 are raised to.
A. analyse the latest technology
B. challenge traditional car makers
C. explain how the change happened
D. show the advantage of the technology
28. What is John B. Rogers Jr's attitude towards the technology?
A. Positive. B. Doubtful.
C. Surprised. D. Disappointed.
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第一節(jié)(共15小題;每小題2分,滿分30分)
閱讀下列短文,從每題所給的四個選項(A、B、C和D)中,選出最佳選項。
A
In 1995 Patrick Combs was living in San Francisco and trying desperately to make ends meet. He had just written a guide for college students called Major in Success and he was using the book to build what he hoped would be a successful career as a motivational speaker,helping people to make the most of their talents and abilities. And no one needed his advice more than Patrick himself. Money had always been tight in Patrick's family and,at 28,he thought it was always going to be like that for him.
But you never know your luck!He found himself looking at a junk mail promising that if he sent money to a certain company,he would soon be receiving huge cheques (iL#) which would make him rich. And to prove it,the company had put a sample cheque in with their letter.
He thought it would be a funny joke to deposit (存儲) the cheque in his account. He would give bank employees a laugh when they discovered that “some stupid people” had tried to cash a junk mail cheque. So he wrote in the amount of the deposit, $95,093.35.
After ten days,much to his shock,he found that the cheque had been cleared and the money had been put into his account. The junk mail company had succeeded in making the cheque look real — far too real. With “money” in his account,Patrick became worried. He couldn’t think of anything else for two months. After researching his own legal position long and hard,he discovered that he was not legally responsible for returning the money — he had committed no crime.
But in the end,Patrick decided to do the “right” thing. He returned the money to the bank. Patrick had by this time become famous and he used the story to make his career as a motivational speaker. Today his money worries are over.
21. What did Patrick worry about most at 28?
A. Money. B. His book.
C. His career. D. College studentsJ future.
22. Why did Patrick write down the amount of money?
A. He wanted to play a joke on the bank.
B. He planned to put money into the bank.
C. He tried to realise his dream of being rich.
D. He did what the letter instructed him to do.
23. What did Patrick do after he got the money?
A. He committed a crime.
B. He looked up many legal rules.
C. He worried about it for three months.
D. He unlocked the mystery of the cheque.
24. What can we infer from the text?
A. People can't be poor forever.
B. People shouldn’t wait for their luck.
C. Do the right thing and your luck will come.
D. Success will come when you make the most of yourself.
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選用方框內(nèi)合適的短語并用其正確形式填空(每個短語限用一次) 。
dive into,set out,be aware of,hang on,be associated with,ring off
1. a second. I’11 come with you.
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