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问题 填空题

生物体都有新陈代谢作用．新陈代谢是______总称，是生物体______的基础．

答案

新陈代谢是活细胞全部化学反应的总称．它的意义是生物体进行一切生命活动的基础、是生命现象的根本特征．

故答案为：活细胞全部化学反应的；进行一切生命活动．

解答题

从A地到B地，如果每小时行10米，就提前30分钟到达；如果每小时行9千米，就比原计划晚到半小时．求A、B两地相距多少千米？原计划几小时到达？
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填空题

用所给词的正确形式填空。

1、—Where's my seat, John? 

     —It's next to                (I).

2、It is nice for anybody to sit in an armchair in the garden                  (read) a book

3、It's               (polite) to speak with food in mouth.

4、—You look _________ (health) than before. What's wrong with you?

     —Maybe I have eaten                  (health) these days.

5、The girl is a                (live) child and everyone likes her a lot.

6、Tell me your                 (happy), please, and you'll feel better, I'm sure.

7、Hong Kong's return to China in 1997 marked that Britain's                 (control) over Hong Kong came to

     the end.

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