1、Comment e1: 当做主语从句时，只有从句在不缺少任何成分时才用that，在这里意为是什么东西或是事情，只能用 what，有时表示什么地方时也要用 what那些曾经被认为不可能的事情，现在已成真了1主语从句练习主语从句whatever = anything that; whoever = anyone who单项选择题1. _D_ as much as one-fifth of all timber harvested is not used.A. The estimate B. The estimate C. They are estimated D. It is estimated
2、that2. D_ was once regarded as impossible has now become a reality.A. That B. Which C. Who D. What 3. _B_ we have achieved is attributed to the guidance of our parents.A. Whoever B. Whatever C. However D. That 4. _B_ you say now cant make up for what youve done. A. No matter B. Whatever C. However D
3、. That5. Although _B_ happened in this developed country sounds like science fiction, it could occur elsewhere in the world.A. which B. what C. how D. it6. _D_ she had forgotten to take her notebook.A. That occurred to her B. She occurred that C. To her that occurred D. It occurred to her thatCommen
4、t e2: 此处 that引导的是并与从句 What she said 充当 is wrong 的主语，主语从句 充当成分用引导词 whatComment e3: 主语从句中、What 充当 made 的主语成分That 不充当成分27. I am sure that _B_ she said is wrong.A. which B. all C. this D. what8. We lost our way in the forest, and _A_ made matters worse was that it was getting dark.A. that B. which C. it
5、 D. what9. _B_ occurred to him that he had forgotten to lock the door when he left home.A. This B. It C. That D. These10. _D_ or not is still uncertain.A. Hes coming B. If he is coming C. That coming D. Whether hes coming11. Its _D_ hell be able to come.A. doubt whether B. doubtfulC. doubt it D. dou
6、btful whether 12. It is _C_ that the bridge has existed for more than three centuries .A. appeared B. risen C. said D. born13. _C_ he saw both surprised and frightened him.A. That B. When C. What D. Which14. _D_ is a spell of warm sunshine.A. What do we all need. B. What all we need C. What we need
7、D. What we all need15. _D_ is a pity that he should feel so upset. A. What B. That C. He D. It16. _C_ a spoonful of soil can tell us so much about the structure and Comment e4: 注意与形式主语的区别 此处若无 is 则是由 it充当形式主语，反之，则是 what 充当 is troubling me 的主语3early history of the moon.A. Remarkable B. Quite remarkab
8、ly C. It is remarkable that D. It is remarkable 17. _A_ you nominate will be elected. A. Who B. Which C. Whomever D. Thats 18. _C_ book you borrow must be returned within a week.A. What B. Which C. Whichever D. Thats 19. _A_ is troubling me is that I dont have much experience in international commer
9、ce.A. It B. That C. Which D. What20. _A_they wil go there to try another experiment has not been decided yet.A. Whether B. If C. About whether D. Why 根据提示，完成句子。1._who will pick him up_ hasnt been decided yet.(pick)谁将去接他还没有确定。2._whether we can finish our work on time _ remains unknown.(finish)我们是否能按时
10、完成工作还不知道3._whether you like him or not_ is none of my business.(like)你喜不喜欢他都与我无关。Comment e5: that her hair was turning grey Comment e6: its desired that Comment e7: 违法break the law Comment e8: 时态要一致 made44._when he will go abroad_ is being discussed.(abroad)他将何时出国正在讨论之中。5._what matters the most_ in
11、learning English is enough practice.(matter)英语学习中最重要的是足够的练习。6.It worried her a bit _that her hair is becoming white_.(turn)她的头发正在变白让她有些担忧。7.After Yang Liwei succeeded in circling the earth, _it is desired that _ our astronauts walk in space. (desire)杨利伟成功地环绕地球后，我们希望的是宇航员在太空漫步。8. _whoever breaks the laws _ should be punished.(break) 任何违法的人都应该被惩罚。9._it seems impossible_that_ we can learn four foreign languages at the same time.(seem)我们能同时学四门外语似乎不可能。10._what makes the school proud_ was that more than 90% of the students had been admitted to the key universities.让这所学校感到自豪的是超过 90%的学生被重点大学录取了。5
