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　　Do you know something about tree rings(年輪)? Do you know they can tell us what the weather was like, sometimes even hundreds of years ago?

　　A tree will grow well in a climate(氣候) with lots of sunshine and rainfall(雨量). And little sunshine or rainfall will limit(限制) the growth of a tree. We can see the change of climate by studying the tree rings. For example, to find out the weather of ten years ago, count the rings of a tree from the outside to the inside. If the tenth ring is far from the eleventh ring, then we're sure that it was sunny and rainy most of that year. If it is near to the eleventh ring, then the climate that year was bad.

　　Tree rings are important not only for studying the history of weather but also for studying the history of man. Many centuries ago there lived a lot of people at a place in New Mexico, but now you can find only sand there－no trees and no people. What happened?

　　A scientist studied the rings of dead trees. He found that the people had to leave because they had cut down all the trees to make fires and buildings. As all the trees had gone, the people there had to move.

1．________in good climate.

[　　]

A．The tenth ring and the eleventh ring grow far from each other

B．Tree rings become thinner

C．Trees don't need sunshine or rainfall

D．People can cut down most of the trees

2．The scientists are interested in studying tree rings because tree rings can tell ________.

[　　]

A．whether a tree was strong or not

B．whether people took good care of the trees or not

C．whether the climate was good or not

D．how old the trees were

3．If you want to find out the weather of twenty years ago, you should study ________ of a tree from the outside to inside.

[　　]

A．the twentieth ring

B．the tenth ring

C．the nineteenth ring

D．the twenty-first ring

4．Why did people usually live in places with lots of trees?

[　　]

A．Trees could tell the change of sunshine and rain.

B．Trees brought lots of sunshine and rain.

C．Trees could make weather not too hot or too cold.

D．Trees could be used for burning and for building houses.

5．The people had to leave the place in New Mexico________.

[　　]

A．because bad weather stopped the growth of trees

B．because they no longer had water and the land became sand

C．because they didn't have enough trees for burning

D．because there was too much rain there

Choose the best response from A～J in the box according to the sentence given. Each choice should be only used once.(根據所給句子，在方框A～J中選出一個最佳應答，每個選項只能用一次。)

1．Excuse me, where is the nearest library, please?

[　　]

2．Welcome to our city! Would you like to look around it?

[　　]

3．What will the weather be like next week?

[　　]

4．Hello! Can I speak to Betty, please?

[　　]

5．Oh, I'm afraid I have to go now. I must meet a friend at 5:30.

[　　]

6．Would you mind looking after my schoolbag? I have to go back for my keys.

[　　]

7．I'm sorry for giving you so much trouble.

[　　]

8．What do you want to do when you grow up?

[　　]

9．I haven't seen you for ages. How are you getting on?

[　　]

10．Why didn't you come to Mary's party last Sunday?

[　　]

A．Oh, you'd better hurry.

B．Sunny.

C．Nobody told me.

D．It doesn't matter.

E．Yes, I'd like to. It's beautiful here.

F．Behind the cinema.

G．Quite well. Thank you.

H．Hold on, please.

I．No problem. I'll be glad to.

J．To be a teacher.

從B欄中找出與A欄各句相應的答語

A．I'm sorry to hear that．I hope you'll be well soon.

B．I'm afraid not．He isn't here at the moment.

C．Thank you very much.

D．It's sunny,isn't it?

E．Yes, I'd love to.

F．Not at all．It's a pleasure.