C. of D. about

答案与解析：D　be curious about是固定搭配，意思是"对......好奇"，后面how引导的是宾语从句。

3．He ran faster than ever, reaching the schoolyard quite ________.

A. lose his breath B. under his breath

C. out of breath D. without breath

答案与解析：C　本题考查短语out of breath的用法。意为：他跑得更快了，到了校园时上气不接下气了。

4．This material is made________ silk. It can be made________ a good evening dress.

A. of; into B. from; up

C. into; into D. from; into

答案与解析：D　本题考查两个短语的用法，be made from由......制成(看不出原材料)；be made into由某种原料制成某种产品。

5. For all these years I have been working for others. I'm hoping I'll________ my own business some day.

A. turn up B. fix up

C. set up D. make up

答案与解析：C　set up one's business意思是"建立某人的公司"。turn up"出现"；fix up"修理，固定"；make up"构成，组成，化妆，弥补"。

6．She knows that as a secretary she must be pleasant and helpful no matter how busy she is or what kind of ________ she may be in.

A. mood B. mind

C. form D. thought

答案与解析：A　本题考查句式be in the mood的用法，no matter what kind of mood she may be in意思是"不管她心情怎样"。

7．Mary________ her sister in appearance but not in character.

A. resembles B. looks

C. seems D. appears

答案与解析：A　空格处应为及物动词，只有A选项符合。句意为：玛丽和她的妹妹在外貌上看起来有点像，但性格不像。

8．Although the wind has________， the rain remains steady，so you still need a raincoat.

A. turned up B. gone back

C. died down D. blown out

答案与解析：C　理解句意可判断C项die down意思是"减弱，平息"，其余选项意思不合适。

9．She warned me________ being overconfident.