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1、一、名词性从句一、名词性从句名词性从句即指从句相当于名名词性从句即指从句相当于名词用，包括主语、宾语、表语词用，包括主语、宾语、表语及同位语从句，由连词引出。及同位语从句，由连词引出。1. that 引出一个陈述句，引出一个陈述句，that在从句中在从句中无意义，也无成份，引导宾语从句时无意义，也无成份，引导宾语从句时可省略。可省略。2.if“是否是否”只引导宾语从句，不能省，只引导宾语从句，不能省，所引导的从句还原是一般疑问句。所引导的从句还原是一般疑问句。Whetherornot“是否是否”，引导各名，引导各名词性从句，不能省，引导宾语从句时词性从句，不能省，引导宾语从句时与与if可互换，
2、但与可互换，但与ornot连用时不能用连用时不能用if。3. who, whom, whose, what, which when, where, why, how都有疑问词本来的意义，在从句中都有疑问词本来的意义，在从句中有成份也有意义，不能省略，从句有成份也有意义，不能省略，从句还原都是特殊疑问句。还原都是特殊疑问句。4. whatever, whichever, whoever, whomever, whosever等，也可引导名词性等，也可引导名词性从句，不能省，在从句中有成份，也有意从句，不能省，在从句中有成份，也有意义，与不加义，与不加ever的连词用法一样，但语气的连词用法一样，
3、但语气较强，可拆开成较强，可拆开成“先行词先行词+定语从句定语从句”句句式式二、名词性从句练习二、名词性从句练习1.We havent heard from Jane for a long time.What do you suppose _to her? A. was happening B. to happen C. has happened D. having happened (91)2.No one can be sure _in a million years. A. what man will look like B. what will man look like C. man
4、 will look like what D. what look will man like (91)3._the 2000 Olympic Games will be held in Beijing is not known yet.A. Whenever B. If C. Whether D. That (92)4.Go and get your coat. Its _you left it. A. there B. where C. there where D. where there (92)5.It worried her a bit _her hair was turning g
5、rey. A. while B. that C. if D. for (92)6.Remember _this used to be a quiet village. A. when B. how C. where D. what (93)7._we cant get seems better than _ we have. A. What; what B. What; that C. That; that D. That; what (96)8._well go camping tomorrow depends on the weather.A. If B. Whether C. That
6、D. Where (96)9.It is generally considered unwise to give a child _he or she wants.A. however B. whatever C. whichever D. Whenever (97)10.I hate _when people talk with their mouths full. A. it B. that C. these D. them (98)11.What does he want to express?_he really means is that he doesnt agree with u
7、s. A. What B. That C. Whatever D. Whether12._no one likes his idea is not strange at all. A. What B. How C. When D. That13.He always spends a lot of time playing computer games.That is _he always fails his examinations. A. what B. how C. why D. because14.Can you make sure _the recorder? A. where Ali
8、ce had put B. where had Alice put C. where Alice has put D. where has Alice put15.What I say and think _no matter of yours. A. is B. are C. were D. was16.In my opinion, we should buy a new computer.Thats _we differ. A. where B. why C. how D. what17.The problem is _will be in charge of that. A. whoev
9、er B. who C. what D. which18.Your article is quite all right _the organization is a bit loose. A. except B. except that C. except for D. beside19.I can hardly recognize the village.Oh, its no longer _it used to be. A. that B. when C. how D. what20.She works even harder since she got the prize.Yes. S
10、he is never satisfied _she has achieved. A. what B. with what C. with that D. with which21.Everyone has done something for the people in the flooded areas.But we are still thinking about _we can do more for them. A. what B. that C. how D. where22.The fact _she hadnt said anything surprised all of us
11、. A. which B. what C. that D. how23.Are you sorry for _ youve done? A. which B. all what C. what D. that what24.There are so many people gathering there.Lets go and see _. A. whats the matter B. what has been happened C. what the matter is D. what are they doing25.It is unknown to us _they bought su
12、ch fine clothes. A. that B. what C. where D. who26.Does_matter much if they will not come tomorrow? A. that B. this C. it D. he27._we shall meet next time has not been decided yet. A. Whether and that B. When and what C. When and where D. Where and if28._we do must be in the interests of the people.
13、 A. That B. How C. Whether D. Whatever29._makes mistakes must correct them. A. Who B. Anyone C. Whoever D. Anybody30.The reason _he was late for class was _he missed the bus. A. that; that B. why; because C. why; that D. that; why三、答案及分析三、答案及分析15CACBB610AABBA1115ADCCA1620ABBDB2125CCCAC2630CCDCC分析：分析
14、：1.选C。回答中what引导名词从句作主句动词suppose的宾语，因为是问句，疑问词提到句首，此句受主句干扰容易选错，若把主句去掉或括起不看，答案就一目了然。2.选A。无论是什么从句，语序都应陈述，但连词要放从句句首，起引导作用。3.选C。这是主语从句，if只能引导宾语从句，whenever使语义不通，that引导的是表示肯定或否定意义的陈述句，是陈述一个事实，whether引导的从句有表疑问的意义，主句中“isnotknownyet还不得知”正是表示疑问，与whether“是否”语义一致。可能由于受汉语影响，此句式是难点，尤其要注意类似句型：Imsurethat(不能用if或whether)ItsclearthatImnotsureif/whether(不能用that)IdontdoubtthatItsnotclearwhetherIdoubtwhether/if4.选B.where引导表语从句，表示“在地方”，由于受汉语影响，容易选错，如选C，当作宾语从句看，there是副词，不作先行词，若真要用定语从句表达此句，应是：Itsattheplacewhereyouleftit.意思与本题句一样。5.选B。此句一要看清句式，it是形式主语，that引导的是真正的主语；二要看连词的作用，选A、C、D项的话，it指代不明，产生歧义。
