[考查目标]v -ing 作主语。

[答案与解析]D A、B、C三项句法都无错误，但在and连接的并列句中，两个简单句的主语要保持一致的形式 fishing and collecting coins分别做两个简单句的主语。

5. It's polite to finish eating everything on your plate, so don't take more food than you need. 餐盘里的东西要吃光才礼貌，所以不要多拿。

该句中的it为形式主语，真正的主语为to finish eating …例如：It's not right to tell lies. 撒谎是不对的。

it作为形式主语，真正的主语是动词不定式短语。常见的句型有：

1. It + be + adj. + to do sth 2. It + be + n. + to do sth

3. It + be + PP. to do sth

【考例】(2001上海) In fact ____ is a hard job for the police to keep order in an important football match.

A. this B. that C. there D. it

[考查目标] 形式主语。

[答案与解析]D 只有it才可以作形式主语。

【句型归纳】

1. When / While / Though / Unless / If + n. / adj. / 现在分词/过去分词……

状语从句有些成分有时可省略，一般是主语和be省略;有时it和be可以省略： He made no answer when (he is) spoken to. /Though (he was) born in Chicago, the author is most famous for his stories about New York. / Come back early if (it is) possible.

[注意]用法详见Chapter 10语法活用“省略和插入语”。

2. Not only / just…but (also) 连接相同的句子成分

Not only the teacher but all the students are going to visit the Science Museum. (连接主语时根据就近原则) / They not only sang but (also) danced for a whole night. / Many people go to see this film not just because the film is interesting, but also the leading actors and actresses are all world famous. / Not only do we learn for our country, but we'll work for her in the future. (连接句子时，not only后的句子要部分倒装)

[牛刀小试3]

1. The reason ____ you failed, I think, was ____ you had turned a deaf ear to your mother's advice.

A. that; because B. why; because

C. why; that D. for that; that

2. The English play ____ my students acted at the New Year's party was a great success. (2004 全国卷I)

A. for which B. at which

C. in which D. on which

3. When ____, the museum will be open to the public next year. (2002 上海春招)

A. completed B. completing

C. being completed D. to be completed

4. ____ the meeting himself gave them a great deal of encouragement. (2003 上海)

A. The president will attend

B. The president to attend

C. The president attend

D. The president's attending

5. I don't think ____ possible to master a foreign language without much memory work. (NMET 1990)

A. this B. that C. its D. it

【交际速成】

1. Giving opinions and Making comments 询问看法与作出评价

(2003北京西城)

-- How do you find the talk given by Mr.Smith? -- ____.

A. Very well B. Excited C. Boring D. Not at an

[答案与解析]C 本题考查对事物提出看法或作出评价的用语。A、B两项词法错误，若改为Very good或Exciting，就可回答提问了。D项不合语境。此句完整为：(It's) Boring.

【归纳】英语中询问看法的用语有：

① How do you like / find...?

② What do you think of / about...?

③ What do you feel about...?

2. Describing sequences按次序描述事件发生的过程

Mother first did some washing and then did some cooking, ____ she had a rest.

A. finally B. in the end

C. by the end D. at last

[答案与解析] A 本题考查如何描述事情发生的顺序。finally 用于在列举一系列内容之后。要引出最后一项内容的场合;也可与at last互换，表示所盼望的事迟迟到来。in the end强调结果。有时可与口at last意义相同。

【归纳】英语中常见描述事件发生次序的用语有：

① First,.... Next,....Then.... Finally, ....例如:

First, we went to Leshan. Next, we climbed Mount Emei. Then we played with some moneys. Finally, towards evening we were on the way back to Chengdu.

② What did you do next?

3. Thanks致谢

(2002北京) -- It's been a wonderful evening, Thank you very much. -- ____.

A. My pleasure B. I'm glad to hear that

C. No, thanks D. It's OK

[答案与解析]A 本题考查英语中如何表达感谢及应答。My pleasure是回答感谢的客套话。

【归纳】英语中表达感谢的用语有：

① Thank you (very much).

② Thanks a lot.

③ Thank you for your help.

④ It's very kind / nice of you.

⑤ Many thanks.

⑥ I appreciate your help.

⑦ I can never thank you enough.

⑧ I'm extremely grateful to you.

应答用语有：

① It's a pleasure.

② My pleasure.

③ That's OK / all right.

④ You're welcome.

⑤ Not at all.

⑥ Don't mention it.

⑦ No trouble at all (没什么).

⑧ At your service (愿为你效劳).

⑨ Think nothing of it.

[牛刀小试4]

1. -- Thank you ever so much for your help. -- ____.

A. Glad to hear that B. Not worth thanking

C. Think nothing of it D. You're too polite

2. -- How did you find your visit to the museum, Jane?

-- ____.

A. Oh, wonderful, indeed B. By taking a No. 3 bus

C. I went there alone

D. A classmate of mine showed me the way

3. -- ____ the articles of Times? -- I'm not sure. I glanced through them but I haven't formed an opinion yet.

A. How do you think of B. What did you like

C. How did you like D. What do you think of

4. -- Thank you very much for the meal. -- Not at all. ____.

A. I'm very glad to hear that B. I'm glad you could come

C. Make yourself at home D. With pleasure

以上就是高一英语重点知识点句型诠释，更多精彩请进入高中频道。