8. These young men could hardly        (抵抗) the temptation of playing computer games all night long.

7. We should accept the truth that everyone has some        (缺点) in some way.

6. The chance of dinosaurs ever returning to the earth is        (仅仅) a dream.

5. Bolt is the fastest man in the world at present,and each runner        (崇拜) him for his great speed.

4. It often b        Jack's parents that he falls far behind the others in his class.

3. The sudden death of her father s        great sadness into her heart.

2. Everybody must obey traffic r        for security reasons.

1. Almost all the people don't think the present housing price is r         .

 Talking plants might sound like characters in a fairy tale. But recent scientific studies have shown that plants communicate with each other and with other living things in a surprising number of ways. To understand them,scientists say,we just have to learn their language. Farmers are especially interested in what plants have to say.

  "Plants are able to communicate with all sorts of organisms (有机体) .They can communicate with giant bacteria,with other plants and with insects. They do this chemically," said Cahill,an Ecology Professor of the University of Alberta in Canada.

Plant scientists are just beginning to understand this chemical "language". Ca?hill says studies have shown,for example,that plants can evaluate (评估) condi?tions in their immediate environment and take appropriate action. Plants have an ability,for example,to signal pain or discomfort caused by anything from tempera?ture extremes to an insect attack. Jack Schultz,a professor of chemical ecology at the University of Missouri,says when a plant senses that it's being eaten,it cannot walk away from trouble; on the contrary,it will release a chemical vapour (蒸气) that alerts other plants nearby.

  "Their language is a chemical language,and it involves chemicals that move through the air that are easy to be changeable,and most of all are smells that we are familiar with," Schultz explained.

  "All plants responded to the attack by changing their chemistry to defend themselves," Schultz recalled. "But we were quite surprised to find that nearby plants also changed their chemistry to defend themselves* even though they were not part of the experiment."

  Studies have also shown that plants under attack release pleasant chemicals. Those chemicals attract friendly insects that attack the pests eating the plant.

In the end,plants' ability to communicate their needs―and our ability to un?derstand them―could help farmers reduce the use of poisonous chemicals,cut op?erating costs and limit damage to the environment.

5. The recent scientific studies have shown that plants can       .

   A. communicate with other living things in a chemical way

   B. hardly react to any sudden change in temperature

   C. use a very special chemical language which is familiar to us

   D. respond to the attack by giving off poisonous chemicals

6. When being eaten by a pest,the plant will       .

   A. walk away from trouble

   B. change its chemistry to kill the insect

   C. release a chemical vapour to "ask" other plants for help

   D. give off nice chemicals to attract friendly insects killing the pest

7. The underlined word "alerts" most probably means "       ”.

 A. warns   B. protects   C. threatens   D. allows

8. Which would be the best title for the passage?

   A. Communication between plants

   B. A chemical "language"

   C. Plants can talk

   D. How plants protect themselves

 Although 80% of the public have stated their opposition to cloning pet animals such as cats and dogs,companies still try to make a business out of selling cloned pets. These petcloning companies make use of the grief of people who have lost their beloved pets,leading them to believe that their pets can be "brought back to life" or "copied" through new cloning technology.

  However,there is no assurance that a cloned animal will be the ^v same as the original physically,let alone in terms of behaviour or per?sonality. In addition,more than 96 per cent of cloning attempts fail,and according to the CEO of one pet cloning company,15% % of cloned cats will die within 30 days. The Roslin Institute,which produced the first cloned animal,posted a state?ment on its website stating,"…the supposed benefit of cloning a pet is an illusion (假象) and the harm to the other animals involved would be real".”Behind each cute picture of a cloned cat or dog lie hundreds of animals that were kept in laboratory cages,receiving bad treatment during various experiments. For all that,you end up with a cloned animal that may experience serious health problems.

  While pet cloning companies are charging customers up to $ 150,000 for a cloned pet,millions of homeless animals of the same species are available in animal shelters for around $ 100. Unfortunately,most of these animals are killed for no one brings them home.

  With our No Pet Cloning movement,we seek to protect both animals and peo?ple from harm. We worked hard until the only US companies that sold cloned ani?mals closed their doors. Currently,cat and dog cloning experiments for pet sales are only being conducted in Korea.

1. What's the Roslin Institute's opinion on pet cloning?

   A. The Roslin Institute thinks it is harmless.

   B. The Roslin Institute thinks it cannot be avoided.

   C. The Roslin Institute does not support it.

   D. The Roslin Institute refuses to make comments.

2. We can learn from the third paragraph that the writer thinks         .

   A. pets from shelters usually have health problems

   B. buying cloned pets is a waste of money

   C. cloned pets are better than the ones from shelters

   D. pets from shelters should be used for experiments

3. The No Pet Cloning movement has succeeded in         .

   A. asking the US pet cloning companies to move to Korea

   B. stopping some businessmen earning money by selling cloned pets

   C. educating the public on the disadvantages of the cloning technology

   D. persuading 80 %of the public to protest against pet cloning

4. What would be the best title for the passage?

   A. Animal cloning technology is not perfect

   B. Pet cloning is a profitable industry

   C. Animals shouldn't be used for experiments

   D. Pet cloning should be stopped