根据句意及首字母提示完成单词。

1. I think eating too much meat is b         for your health.

2. It’s a good h         to go out for a walk after supper.

3. Look! The baby has three small white t         in his mouth!

4. I usually go to the movies o         or twice a month.

5. Wait a minute, Steve. Mother is c         dinner for us.

6. He wants to be a doctor l         his father when he grows up.

7. Her brother isn’t too tall. He is medium          .

8. I have a toothache. I have to see a d         .

9. Is their lifestyle the same to y         or different?  

10. What’s the w         like today? Is it cold outside?

— I think ______ of the materials I listened to at the beginning of the exam ______ easy.

?? — I think so.

A. three fourths, is? B. third four, are????? C. three fourths, are?? D. three fourth, are

—How much are the two pairs of shoes?

  —They are not expensive. I think fifty dollars ______ enough.

A. is             B. are           C. were           D. was

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__．