Today there are 6 billion people on the earth. By the year 2050 there may be 12.5 billion. This means we need more food.

One way to produce more food is by growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material (遗传物质). Foods from plants grown in this way are called genetically modified foods (转基因食品), or GM foods.

By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help in our diseases: a kind of rice is being prepared (准备), for example, which stops people from becoming blind.

Rich countries produce GM food because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.

GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But, both rich and poor countries are very interested in their use, and they are not going to go away. In 2050 we may think differently about them.

根据短文内容，从A、B、C、D四个选项中选择正确答案，并将其字母代号填入答题卷相应空格内。（共5小题，每小题2分，满分10分）

86．GM foods are made by .　　　　　　　　　　　　　　　　　　　　　　

　　　 A．farmers　 B．workers　 C．scientists D．plants

87．What are the good things about GM foods ?　 　　　　　　　　　　　　　　　　

　　　 A．They make plants strong against diseases.

　　　 B．They are unnatural.

　　　 C．They can help in human diseases.

　　　 D．Both A and C.

88．GM foods .　　　　　　　　　　　　　　　　　　　　　　　　　　

　　　 A．are a quick way to produce food　 B．grow in the wild

　　　 C．are safe　　　　　 D．are grown only in rich countries

89．Why do some people not like GM foods ?　　　　　　　　　　　 　　　　　　　

　　　 A．They are not useful. B．They are not helpful.

　　　 C．They are not natural.　　　 D．They are not cheap.

90．From the reading we know that .　　　　　　　　　　　　　　　　　　

　　　 A．GM foods will disappear one day in the future

　　　 B．GM foods will not disappear in the future

　　　 C．people will not be interested in GM food

　　　 D．people will have to stop using GM food

There are nineteen boys and twenty-eight girls in our class.  1 　the boys is English. His 2 is Sam. He is thirteen. Two of the  3  are American. They are twins. 4　names are Lucy and Jane. They are twelve. They are my  5　. All of the other boys and girls are  6 　. We all like the English boy and the American girls,  7  they like us, too. We play games together（一起）. We help  8  and they help us.

　　Look, there   9  the twins! They are coming this way.  Let's 10  hello to them.

2. 

4. 

5. 

7. 

8. 

10. 

A farmer had a cow. He took very good care of this cow and one day when it was ill, he was very worried. He telephoned the vet.

　 “What’s the problem?” The vet asked him when he arrived.

　? “My cow's ill,” the farmer said. “I don’t know what's the matter with her. She’s lying down and won’t eat. She's making a strange noise.”

　　The vet looked over the cow. "She's certainly ill," he said, "and she needs to take some very strong medicine."

??? He took a bottle out of his box, put two pills into his hand and said, "Give her these. The pills should make her better."

　 “How should I give them to her?” the farmer asked.

　　The vet gave him a tube (管子)and said, "Put this tube in her mouth, then put the pills in the tube and blow. That'll make it."

　　The next day the vet came to the farm again. The farmer was sitting outside his house and looked more worried.

　　“How's your cow?” the vet asked.

　　“No change,” the farmer said, “and I’m feeling very strange myself.”

　　“Oh?” the vet said, "Why?"

　　“I did what you said,” the farmer answered. “I put the tube in the cow's mouth and then put two pills down it.”

　　“And?” the vet asked.

　　“The cow blew first,” the farmer said.

1.In the story, the vet must be _________.

A. the farmer's friend???????? B. a milk factory

C. a hospital for cows???????? D. a doctor for animals

2.The farmer asked the vet for help when his cow _______

A. couldn't lie down????????? B. didn't eat the pills

C. couldn't make any noise? ?? D. was ill

3.What medicine did the vet give the farmer?

A. Bottle of pills.????? B. A long tube.

C. Two pills.????????? D. A small box.

4.The vet taught the farmer how _________.

A. to blow the tube??????

B. to make the cow take the pills

C. to take the medicine???

D. to put the tube in his mouth

5.Which of the following is true?

A. The farmer ate the pills himself.

B. The cow got better after taking the medicine.

C. The vet came to help farmer change the cow the next day.

D. The farmer waited for the vet outside his house the next day.

What’s a blog? A blog is a personal online diary(日记). It’s cool, it’s hot, and everyone is doing it. People talk about it often. Sound like a fashion? In fact, It’s another trend (流行趋势). And the word “blogger” means a person who writes diaries online. Are you a blogger?　　

Many bloggers are teenagers who log (进入) onto websites to discuss anything in their lives. Many of today’s teenagers are not afraid to openly discuss everything in their lives. Teenagers complain about their parents and homework. They share diaries, post(发布) songs from the latest bands and show pictures of theirs. They write their own poems, say something about their girlfriends or boyfriends and complain to each other or offer support. But mostly they just write down what they do every day.　　

However, many parents are worried about these young bloggers. Parents see the kids talking about how they got drunk last weekend and how they don’t like studying. They are using the language that is surprising to their parents. Besides hearing from their friends, teen bloggers also get messages from strangers. Most of the time, it’s older men asking to meet teenage girls. “These strange men are dangerous for my kids. They sometimes teach my kids bad words.” said Cara Cabral, a mother of two children.　　

Many teenagers and young adults know it’s not safe to use blogs on the Internet. They know they are putting information about themselves in a place where it can be seen by anyone. But teenagers are unwilling to give up these new communication tools that have become a way of life for many of them. 　　

1. The underlined word “it” in the first paragraph means ________.　　

A. the fashion          B. the Internet       C. the blog    　　

2. Which of the following is NOT TRUE？　　

A. Teenagers don’t tell about their personal life in their blogs.　　

B. Teenagers mostly write down what they do every day in their blogs.　　

C. Teenagers complain about their parents and homework in their blogs.　　

3. What’s the main idea of the third paragraph?　　

A. Many parents don’t understand kids’ language in their blogs.　　

B. Many parents are worried about these young bloggers. 　　

C. Many parents can understand why their kids don’t like studying.　　

4. Many parents think it’s         for their children to get messages from strangers.　　

A. dangerous     B. interesting        C. surprising 　　

5. We can learn from the last paragraph that         .　　

A. It’s easy for many teenagers to give up blogging on the Internet                 　　

B. It’s safe for many teenagers to put their personal information on the Internet　　

C. It’s popular for many teenagers to use blogs on the Internet