请崔老师解答~~

解题思路： what 的小窍门适合所有句子
解题过程：
孩子 两个条件同时满足 用 what 没错
1.(04上海，37) After Yang Liwei succeeded in circling the earth, _____our astronauts desire to do is walk in space.
A. where B. what C. that D. how
B 句意： 杨利伟成功地环绕地球以后，我们的宇航员想做的事情就是太空行走。“_____our astronauts desire to do”为主语从句，在此从句中缺少宾语，而选项中能在名词性从句中作宾语的只有what。
2.
(06全国I，23) See the flags on top of the building? That was _____ we did this morning.
A. when B. which C. where D. what
D 句意：看到楼顶上的那些旗帜了吗?那是我们今天上午干的活。that指“把旗竖(立)起来那件事”。what引导名词性关系从句 (表语从句)，在主句中作表语，在从句中作did的宾语.
3.
(06北京，29) Could you do me a favor?
— It depends on _____ it is.
A. which B. whichever
C. what D. whatever
C 句意：——您能帮我个忙吗?——那要看帮什么忙。B项whichever =any(one) of …that(在一定范围中的任意一个)和D项whatever= anything that(任何事情)都不符合句意，故排除。干扰项为A选项，考生需要了解which与what的区别，比较：The question is which of us should go．(有范围) That’s what he is worrying about．(what=the thing (s)that)因此该题选择C。
4.
(2007全国II,17) _____matters most in learning English is enough practice.
A. What B. Why C. Where D. Which
A句意：学习英语最重要的是要有足够的训练量。根据结构，空缺部分缺一主语。B、C选项不能胜任。根据句意，可排除D项。因此，A为正确答案。
5.
(2007上海，39) _____he referred to in his article was unknown to the general reader.
A. That B. What C. Whether D. Where
B句意：文章中他所写的内容一般读者不知道。此题考查连词引导主语从句 ，主语从句中连词的使用关键要以连词在从句中所起的作用而定。此主语从句中refer to后面明显缺宾语，所以应该选连接代词，故C、D选项被排除；that在从句中不充当成分，故选B。
6.(2007陕西，8) _____ parents say and do has a life-long effect on their children.
A. That B. Which C. What D. As
C 句意 ：父母的言行对他们的孩子有终生的影响。本题考查的是what引导主语从句。从句中缺少宾语，排除that，that是句子成分不缺的时候用。B项which有选择含义，本题中不含选择含义。C项为正确答案。
7.
(2008山东，23) ______was most important to her, she told me, was her family.
A. It B. This C. What D. As
C 句意：她告诉我，对她来说最重要的是她的家庭。句子可以调整为：What was most important to her was her family．注意：命题者故意在句中插入了she told me，这要求考生能快速地识别出来。
11. (2008北京，30) The companies are working together to create ______ they hope will be the best means of transport in the 21st century.
A. which B. that C. what D. who
C句意：这些公司正在一起努力创造出他们所希望的21世纪最好的交通方式。本题考查名词性从句。which哪一个，who谁，故A、D选项被排除。that在名词性从句中不充当任何成分，故排除B项；what在名词性从句中充当主语、宾语或表语。此句中what在从句中作主语，故选C。
最终答案：略