大学英语语法专题练习从句练习1.Ihopealltheprecautionsagainstairpollution,_____suggestedbylocalgovernment, willbeseriouslyconsidered here.A)whileB)sinceC)afterD)as2. The problem of ________ to select as his successor was quickly disposed of.A)whatB) whomC)whichD)how3.____youropinionsareworthconsidering,thecommitteefindsitunwisetoplacetoo muchimportanceonthem.A )AsB )SinceC)ProvidedD) While4. This is an ideal site for a university _______ it is far from the downtown area.A)provided thatB)so thatC)now thatD)in that5. You will want two trees about ten feet apart, from _______ to suspend your tent.A)thereB)themC)whichD)where6. _______quite recently, most mothers in Britain didn“t take paid w ork outside the home.A) BeforeB) UntilC)FromD)Since7. ___________I admit that there are problems, I don“t think that theycannot be solved.A)UnlessB)UntilC)AsD)While8. John seems a nice person. _______, I don“t trust him.A)Even thoughB)Even soC)ThereforeD)Though9.Amanescapedfromtheprisonlastnight.Itwasalongtime_______theguardsdiscov eredwhathadhappened.A)beforeB)untilC)sinceD)when10. No sooner had we reached the top of the hill ______ we all sat down to rest.A)whenB)thenC)thanD)until11._______ we have finished the course, we shall start doing more revision work.A)For nowB)Now thatC)Ever sinceD)By now12. _____ is known to the world, Mark Twain is a great American writer.A)ThatB)AsC)WhichD)h13. Just as the soil is part of the earth, ________ the atmosphere.A)as it isB)the same isC)so isD)and so is14. They decided to chase the cow away _______ it did more damage.A)unlessB)untilC)beforeD)although15. Britain“s press is unusual_______ it is divided into two very different types of newspaper: the quality pressand the popular press.A)in howB)in whatC)in whichD)in that16. We agree to accept ____ they thought was the best tourist guide.A) what everB) whomeverC)whicheverD) whoever17. The senior librarian at the circulation desk promised to get the book for me ______ she could remember wholast borrowed it.A)ever sinceB)much asC)even thoughD)if only18. There are 110 elements found on the earth, ____ are metals.A)most of thatB)most of whomC)which of mostD)most of which19. His grandmother, ________ he often sends money to, exists otherwise on a small pension.A) whomB) whoseC ) thatD) which20. He“s a doctor,_______ was his wife before she had children.C )whichD)like21.______ it is you“ve found, you must give it back to the person it belongs to.A ) WhateverB) HoweverC ) ThatD)Because22. There isn“t any difference between the two. I really don“t know _______.A)where to chooseB)to choose whatC)which to chooseD)to choose which23. The thoughts suddenly came to me _______ perhaps they had already got ahead of us.A) whatB)whichC ) whoseD)t hat24._______ magnetism first found a practical use.A)That was in the compassB)It was in the compassC)It was the compass thatl))That was the compass25. There is no doubt_______ he will attend the meeting.A)thatB)whetherC)whichD)what26. We want such material _____ can withstand high temperature and strong stress.C)whichD)what27. I would say Henry is not_____ much a writer as a reporter.A)thatB)soC)thisD)as28. Study the next lesson _______ you will know more too.A)otherwiseB)andC)butD)or else29. ________, mother will wait for her to have dinner together.A)However late is sheB)However she is lateC)However is she lateD)However late she is30. I hope that the little ________ I“ve been able to do has been of some use.A)thatB)whichC)whoD)whose【key and explanation】1，答案D。
全句意思是：我希望所有预防空气污染的措施，如同当地政府所建议的那样，在这里都将被认真加以考虑。
该句中的连词as与过去分词suggested连用，表示“正如...一样”。
2．答案B。
全句意思是：选谁作为他的继承人这个问题经被很快解决了。
“疑问词牛不定式”结构在句中作介词of的宾语，而空白部分应该作select的逻辑宾语，因此只有whom符合句子要表达的意思。
3，答案D。
全句意思是：尽管你的意见值得考虑，但委员会认为过分重视它是不明智的。
while在这里是一个连词，表转折关系，意为“然而，虽然，尽管”。
又如：While respected，he is not liked．管他受人尊敬，但并不被人喜爱。
as和since表示原因，provided意为“假使”，用在本题中语意都欠亨。
4．答案Do全句意思是：这是设立大学的理想场所，因为这儿远离闹市。
这里的inthat引导原因状语从句，意为“由于，因为”。
Providedthat常引导条件状语从句，意为“如果”，nowthat意为“既然、由于”，sothat常引导结果或目的状语从句，意为“以致于”或“以便”。
5．答案C。
全句意思是：你将需要两棵相距10英尺的树来挂你的帐篷。
该句中which为关系代词引导定语从句，代替two trees。
由于前面有介词，所以用which作介词的宾语，其他选项均不合题意。
6，答案B。
全句意思是：在英国大多数作母亲的人直到最近才外出从事有偿劳动。
该句中not...until结构为考点。
until放在副词recently前，引导的状语部分前置，和否定的主句呼应，构成not ...until的搭配，表示“直到...才”。
7．答案D。
全句意思是：尽管我承认有困难，但我认为它们不是不能解决的。
while这里不表示动作在同一时间进行，而是一个连词，表示语气的转折，可译为“尽管，然而，但是”。
根据该句的含义，其他三项均可排除。
8．答案B。
全句意思是：约翰看起来像个很好的人。
即使如此，我并不信任他。
根据上下文的含义，空白中应填人表达转折意思的副词。
B项Even so相当于副词nevertheless，意为“即使如此，然而”。