1. A. a　　　 B. an　　　　 C. the　　　　 D. /

10. C.选sad 和 happy 不符合上下文语境，也不合逻辑。如选worry，意思上讲得通，英语中却没有 worry of 这个词组，要改成 worry about才对。

We should remember that we all learned our own language well when we were children. If we could learn ___1___ second language in the same way， it would not seem so ___2___. Think ___3___ what a small child does. It listens to what people say and tries ______ 4______ what it hears.　 When it wants something， it has to ask ___5___ it. It is using the language， talking in it， and thinking in it all the time. If people ___6___ use a second language all the time， they would learn it quickly.

　　 We learn our own language ___7___ hearing people speak it， not by seeing what they write. We imitate ___8___ what we hear. In school， though you learn to read and write ___9___ to hear and speak， it is the best way ___10___ all the new words through the ear. You can read them， speak them， and write them later.

9. B.“笑话你的错误或向你发脾气”与“不理解说的是什么”是结果与原因的关系，所以该句是个原因状语从句。unless与as long as引导条件状语从句，as soon as引导时间状语从句，只有 because引导原因状语从句。

8. B.“嘲笑……”与“愤怒……”相比较时，要用形容词比较级。good和well是原级，best是最高级。

7. A.laugh at是个固定词组，意思是“嘲笑”。

6. B.make a mistake 是个固定词组，意思是“犯错误”。

5. A.“保持幽默感”与“嘲笑错误”是条件与结果的关系，所以本句是个条件状语从句。when和since引导时间状语从句，although 引导让步状语从句，只有if引导条件状语从句。

4. A.这四个词都有“说”的意思，say着重说的内容，talk 强调两个人之间说话,tell着重把一件事情传给别人，speak 着重说某种语言。“说得太快”指说话的内容而言，因此，选say.

3. D.“说不清，道不明”，听的人自然不 “明白或理解”说的是什么。

2. D.宾语的动作由别人来完成时，补足语要用过去分词。