North American black bears are shy animals. They are fearful by nature, and will usually run away if they see or hear people. Because of this, it can be difficult for scientists to learn about these animals.

In order to study black bears, researchers from New Jersey, USA, catch bears and use drugs to help them go to sleep. Researchers then work out the size and the weight of the bear, take blood to test for diseases(疾病), remove a tooth and take it to the lab to find out its age. From these studies, researchers want to find out how many bears live in New Jersey, how long they live, and how many babies they produce.

But in Minnesota, USA, researchers study bears that are completely awake. The bears know the researchers' voices and they are not afraid of die research team. With the help of a few grapes to keep the bears busy, researchers can touch them to check their hearts, look at their teeth, and do other jobs. Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives.

In both places, the main purpose is the same—to make sure there is a healthy population of black bears. But the research methods and the kinds of information that researchers, are able to collect are quite different.

1. In the first paragraph, we can learn that North American black bears are _______.

A. shy and fearful animals B. not found today

C. well known to scientists D. not afraid of people

2. The word "remove" in the second paragraph probably means _____ in Chinese.

A. 拔下 B.移植 C. 清洗 D. 修补

3.Which of the following may NOT be included in the New Jersey studies on bears?

A. The age. B. The way of their communication.

C. The weight. D. The number of babies they produce.

4.In the Minnesota studies, researchers _____.

A. can never get close to the bears

B. study the bears while they are asleep

C. use grapes to make the bears full

D. learn a lot about the bears' everyday lives

5.What do the two studies have in common?

A. Research places. B. The main purpose.

C. Research methods. D. Collected information.

B)请阅读下面短文。根据短文内容从下面的方框的七个选项中选择五个适当的句子还原到文中,使短文意思通顺、结构完整。(每小题2分)

1. Does the sky sometimes seem dark to you? Are your studies sometimes not successful? Well, friends, cheer up and smile all the time. If you see the world with your warm heart, you’ll find that the whole world smiles to you.

2. But have you ever noticed the happy smile on your teacher’s face when you did a good job?

One day it is fine. Just before you want to go out, it suddenly starts to rain. 3. But dear friends, why don’t you sit down and listen to the free concert that the nature offers you? And with the timely rain, crops in the fields will grow better and better and farmers well have a good harvest.

Although everyone wants to succeed in what he tries to do, sometimes failure(失败)can’t be avoided. 4.

And the terrible thing is that we ate afraid of it and give up hope. When we face failure, we must be confident of ourselves, draw a useful lesson from it and try our best to finish what we have decided to do. As a popular saying goes, “Failure is the mother of success.”

5. With an optimistic(乐观的)attitude life is easy and pleasant. Let’s smile to what-ever we meet and the whole world will smile to us.

A.I think failure is not terrible.

B. Have you ever complained why life is so tiring?

C. Maybe you would feel very sad and start complaining about the weather.

D. While in school, sometimes you are tired of your lessons.

E. Attitude decides everything.

F. Don’t feel sad any time.

G. It doesn’t matter at all when you fail.

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