3. The research is so designed that once ____ nothing can be done to change it. (NMET 2002)

A. begins　　 　　　　B. having begun

C. beginning　　 　　　D. begun

[解析]选D once begun 在句中作状语；once这里是连词，“一旦”。

2. Unless ____ to speak，you should remain silent at the conference. (2003年春季上海)

A. invited B. inviting C. being invited D. having invited

[解析]选A you与invite是动宾关系，要用过去分

词invited作状语。

1. Generally speaking, ____ according to the directions, the drug has no side effect. (2003年上海)

A. when taking　　 B. when taken

C. when to take　　 D. when to be taken

[解析]选B take和drug是动宾关系，要用过去分词作状语。可看作是when it is taken的省略。

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

☆精典题例☆

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

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

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

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]

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?

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...?