根据图画及上下文提示，在下面对话的空白处填入适当的话语（话语可以是句子、短语或词），使对话完整。

A：Hey, Ginny．What do you call those big，gray things in the water?

　　B：__1__．

　　A：What?

　　B：Manatees。They’re very gentle and very shy．

　　A：__2__？

　　B：They’re usually about 10 feet long and they weigh about 1000 pounds．

　　A：How much do they need everyday?

　　B：They need about 1 00 pounds of aquatic food a day．

　　A：__3__?

　　B：It is underwater plants and vegetation（植被）．

　　A：That’s what they eat?

　　B：Yes．it is．

　　A：__4__?

　　B：Yes，they are endangered（陷入困境）．But，we’re trying to save them

　　A：Wait a moment．Why are they endangered?

　　B：__5_．

　　A：Where do they live?

　　B：They live in the swamps（沼泽）．__6__ ．They are endangered also because there sometimes isn’t enough food for all of them．

　　A：__7__．There used to be a lot of manatees，but now there aren’t very many of them left，I think．

　　B：Yes，__8__ ．At this point，there are only about 2，500 in the U．S．

　　A：__9__?

　　B：Since 1927 laws have been passed to protect them．

　　A：Thank you for your information．

B：__10__．

交际练习（根据对话和所给的选项选出最佳答案）

　　A: Hi, Molly.

　　B: Hi, Nancy.

　　A: 1 ? I can't make up my mind whether to take the exam in summer.

　　B: 2 . It's a good chance to practise your English.

　　A: 3 study all the time if I want to pass it and I don't know if I've got the time .

　　B: I know, but I really think 4 .And your English is good. I'm sure it won't take your much time .

　　A: Oh, do you really think so?

　　B: I do . 5 , I'd take the exam .

　　A: Well . It's very nice of you to say so . I'll take your advice .

　　B: Great!

1．

[　　]

A．Could you take me some advice

B．What should I advise you to do

C．Could you give me some advice

D．Can I give you some advice

2．

[　　]

A．I suppose you'd better take it

B．I don't think you should take it

C．I can't believe you ought to take it

D．I don't know whether you'll take it

3．

[　　]

A．But I need to

B．And I needn't

C．But I needn't

D．And I need to

4．

[　　]

A．I ought to

B．I ought

C．you ought

D．you ought to

5．

[　　]

A．If I am you

B．If I were you

C．If I wasn't you

D．If I were not you

We asked thirty children between 14 and 1 8．A11 the children had computers at home．The usual time spent on computer in a week was about 1 2 hours, with the highest

user about 3 2 hours．and the lowest user only 5 hours．

A11 the children said they usually used computers to play games．Fourteen children told us thev did some word processing(文字处理)at times．Only two of them said computers helped them with their lessons．and eight children told us they kept addresses and phone numbers on their computers or used them as diaries．Only three children said they were learning to make computer programs and nobody looked up databases(数据厍)．The diagram gives all the results one by one．The results show that computer use is quite high among 14 to 18-year—old children．They also show quite clearly that computers are looked on by most young people as little more than game machines．It means that，though computers are common in the homes of young people，they have not yet become popular in everyday 1ife．

（　 ）1．In the diagram，what does the letter ‘‘d’’ show?

A．It shows three people between 14 and 18．

B．It shows only two of the thirty children．

C．It shows that only two of them use computers to help them with their lessons．

D．It shows that only three of them use computers to help them make computer programs．

（　 ）2.Most of the 3 0 children spent about　　 hours on computers in a week．

A．5　　　 B．1 2　　　 C．20　　　 D．32

(　 ) 3.There iS one mistake in the diagram．What is it?

A．The number of “e" should be lower．

B．The number of ‘‘d’’ should be higher．

C．The．number of “a” is too high．

D．There should be no number about “f’’．

(　 )4.In the last paragraph “little more than” means　 ．

A．almost the same as　 B．far more than C．different from D．much more than

(　 )5.The writer thinks　　　 ．

A．children must learn to play a11 kinds of games

B．more other uses of computers should be learned

C．young people should spend more time on computers

D．computers will become much cheaper