1. A. aren't　　　 　　 B. didn't 　　 C. don't　　 　 　　 D. can't

1．选B。　 begin后可接不定式和动名词，本题表示"刚开始下雨"故用不定式；动名词表示抽象的概念或动作正在进行的过程中，用在此处不合题意。 　2．选C。　 　本题是不定式的否定式作宾语补足语，用tell sb not to do sth的句型，在不定式的否定式中，not要放在不定式符号to之前，这是最容易搞错的。 　3．选A。　 表示在某处“过夜”，用介词for。 　4．选D。　 　本题是修饰可数名词，很显然应该用a few, few含有否定意义，其余两项都修饰不可数名词，均应排除。 　5．选D。　 表示一段时间以后，用later或after, later放在时间之后，after放在时间之前，其余选项均错误。 　6．选D。　 　本题是宾语从句，故应用陈述句语序，又由于是过去时态，故选D而排除其它选项。 　7．选B。　 be about后应接不定式，表示即将做某事，此处是他将要去睡觉，而A是睡着，故B为正确答案。 　8．选A。　 　本题是return的几种动词形式，由于在此处作谓语，表示的是过去发生的动作，故用过去式。 　9．选D。　 本题是检验对have gone和have been to的理解，have gone意为“到…去了”，指还没回来；have been to指“去过…”，现在已回来，当表示地点的词是副词时，省去to，因此本题选项D为正确答案。 　10．选C。　 　home解释为“家、回家”可作名词或副词，作名词时其前往往有修饰语，作副词时，无修饰语，在本题中作副词。

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Germs (细菌) are everywhere. They are very small and you 　1　 see them. They are like the seeds of plants, but they are 　2　. There could be hundreds of them on the point of a needle (针). We can not see the germs 3　, but we can see them with a microscope (显微镜). 　Germs are always found 　4　. When we 　5　 dirty water under the microscope, we shall see them in it. Germs are not found only in water. They are found in the air and in dust, too. 　6　 you cut your hand, some of them will go into your hand. Your hand would become big and red and you would have much pain in it. Sometimes the germs would go 　7　 your body, and you would have pain everywhere. 　　8　 these kinds of germs!

10. A. to home　 B. home to　C. home　D. homed

参考答案

9. A. have…gone　　 B. have…been to　

　C. has…gone　 　 D. have…been

8. A. returned　B. returns　C. to return　D. returning

7. A. to go to sleep　 B. to go to bed　

　C. going to bed　 D. go to bed

6. A. is he　B. was he　C. he is　D. he was

5. A. late　B. after　C. lately　D. later

4. A. few　B. little　C. a little　D. a few

3. A. for　B. to　C.of　D. up