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名词性从句练习题(含答案)经典一、名词性从句1．He took a trip to Beijing last week and ________ he saw at the Forbidden City impressed him deeply.A. thatB. howC. whatD. which【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。
分析句子结构可知，连词and后为一个名词性从句，因此应该使用what引导，且what在从句中作主语，故选C。
【点评】考查名词性从句，本题涉及what引导的主语从句。
2．Has it been announced ______?A. when are the planes to take offB. that are the planes to take offC. where are the planes to take offD. when the planes are to take off【答案】 D【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是when引导的主语从句，且要用陈述句语序，故选D。
【点评】考查名词性从句，it作形式主语，关系副词when引导的从句作真正的主语。
3．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question.A. focused; whetherB. focused; ifC. has focused; whetherD. has focused; if【答案】 C【解析】【分析】考查时态和主语从句。
根据In the past decade,在最近的几十年里，可知句子用现在完成时态，our education system是句子的主语，单数形式，所以第一空填has focused；第二空是主语从句做主语，if是否，不能引导主语从句，所以第二空填whether。
练习: 名词性从句一、判断下列各句哪句含有名词性从句, 并指出是什么从句:e.t.be.2.Th.trut.tha.th.eart.tur.aroun.th.su.i.know.t.all.3.I.wa.snowin.whe.h.arrive.a.th.station.4.Ho.h.persuade.th.manage.t.chang.th.pla.i.interestin.t.u.all.5.Th.new.tha.the.ha.wo.th.gam.soo.sprea.ove.th.whol.school.6.Th.new.tha.yo.tol.m.yesterda.wa.reall.disappointing.e.t.live.8.H.spok.a.i.h.understoo.wha.h.wa.talkin.about.9.D.yo.remembe.th.teache.wh.taugh.u.Englis.a.middl.school?10..wonde.wh.sh.refuse.m.invitation.二、用适当的连词填空:1..can’.decid.___________.dictionar..shoul.buy.2.That’.___________.h.refuse.m.invitation.3..a.ver.intereste.i.___________.h.ha.improve.hi.pronunciatio.i.suc..shor.time.4.___________.w.nee.i.mor.time.5.Th.fac.___________.sh.ha.no.sai.anythin.a.th.meetin.surprise.everybody.6.___________.an.___________.the.wil.mee.ha.no.bee.decide.yet.7.Pleas.tel.m.___________.yo.ar.waitin.for.8.I.tha.___________.yo.ar.lookin.for?9.Woul.yo.pleas.tel.m.___________.th.neares.pos.offic.is?10..don’.kno.___________.h.wil.agre.t.th.pla.o.not.三、选择填空:1.D.yo.se.____. .mean?A.tha.B./C.howD.what2.Tel.me____.i.o.you.mind.A.thatB.whatC.whic.....D.why3.W.mus.stic.t.____.w.hav.agree.on.A.whatB.thatC./D.how4.Le.m.se._____.A.tha.ca..repai.th.radioB.whethe.-.ca.repai.th.radioC..ca.repai.th.radioD.whethe.ca..repai.th.radio5.Kee.i.min._____.A.tha.th.teache.saidB.wha.di.th.teache.sayC.tha.di.th.teache.say ..D.wha.th.teache.said6.Coul.yo.advis.m._____?A.whic.boo.shoul..rea.firstB.wha.boo.shoul..rea.firstC.tha.boo..shoul.rea.firstD.whic.boo..shoul.rea.first7.H.wa.criticize.fo._____.A.h.ha.don.it .B.wha.h.ha.don.C.wha.ha.h.don..D.tha.h.ha.don.it8.Woul.yo.kindl.tel.m._____?A.ho.ca..ge.t.th.Beijin.Railwa.StationB.ho..ca.ge.t.th.Beijin.Railwa.StationC.wher.ca..ge.t.th.Beijin.Railwa.StationD.whethe.ca..ge.t.th.Beijin.Railwa.Station9.Mrs.Smit.wa.ver.muc.impresse.b._____.A.wha.ha.sh.see.i.ChinaB.tha.sh.ha.see.i.ChinaC.wha.sh.ha.see.i.ChinaD.whic.ha.sh.see.i.China10.W.too.i.fo.grante.___ingingin.notD.wer.the.no.coining11..reall.don’.kno._____A..shoul.d.nextB.wha.shoul..d.nextC.wha..shoul.d.nextD.ho..shoul.d.next12.I’.afrai._____.A.th.littl.gir.wil.hav.t.b.operate.onB.tha.wil.th.littl.gir.hav.t.operat.onC.th.littl.gir.wil.hav.t.operat.onD.tha.wil.th.littl.gir.hav.t.b.operate.on13.Sh.walke.u.t.____..A.wher.di..stan.B.wher..stood.C..stoo.ther.D.wher..stoo.there14.Ca.yo.tel.m._____?A.wh.i.tha.gentlemanB.tha.gentlema.i.whoC.wh.tha.gentlema.isD.who..i.tha.gentleman15.We’l.giv.yo._____.A.tha.d.yo.needB.wha.d.yo.needC.whateve.yo.needD.whethe.d.yo.need16.The.wan.u.t.kno.____.A.wha.ca.the.B.wha.the.canC.ho.the.ca..D.ho.ca.they17.W.mus.pu.____.int.practice.A.wha.w.hav.learnedB.tha.w.hav.learnedC.tha.hav.w.learnedD.wha.hav.w.learned18.Di.sh.sa.anythin.abou._____?A.tha.th.wor.wa.t.b.doneB.ho.wa.th.wor.t.b.doneC.tha.wa.th.wor.t.b.doneD.ho.th.wor.wa.t.b.done19.H.wa.neve.satisfie.wit._____.A.wha.sh.ha.achievedB.ha.wha.sh.achievedC.sh.ha.achievedD.tha.sh.achieved20.Thes.photograph.wil.sho.yo._____.A.wha.doe.ou.villag.loo.likeB.wha.ou.villag.look.likeC.ho.doe.ou.villag.loo.likeD.ho.ou.villag.look.like21.Pete.insiste.____.h.pa.th.bill.A.o.thatB.whatC.thatD.o.which22.The.urge.____.th.librar.ope.durin.th.vacation.A.whenB.whereC.whyD.that23.W.wis.w.coul.hav.learne.____.whe.w.wer.a.hig.school.A.wha.yo.di..B.tha.yo.ha.doneC.tha.wha.yo.di.D.wha.di.yo.do24.1 will describe to you _____ I saw when there.A.whatB.thatC.whic....D./25.Fro.____..shoul.sa.h.i..goo.worker.A.wha..kno.o.himB.tha..d.kno.o.himC.wha.d..kno.o.himD.tha.d..kno.o.him26..wil.giv.thi.dictionar.t._.want.t.hav.it.A.whomeve...B.anyone .C.whoeverD./27._____ they will come here hasn’t been decided yet.A.WhatB.ThatC.WhenD.Where28.____.wa.sai.her.mus.b.kep.secret.A.Wh.....B.Th.thingC.Whateve..D.Where29.I.i.stil..questio.____.w.shal.hav.ou.sport.meet.A.ifB.thatC.whatD.when30.I'.goin.anyway.____.sh.wil.g.i.u.t.he.t.decide.A.I.o.notB.Whethe.o.notC.IfD.That31.I.i.strang.____.sh.hav.lef.withou.sayin..word.A.thatB.whatC.whyD.how32.I.i.ver.clea.____.ou.polic.i..correc.one.A.whatB.thatC.wh......D.where33.____.M.Zhan.sai.i.quit.right.A.Tha....B.WhenC.WhatD.Whether34.I.ha.bee.decide.____.h.wil.b.sen.there.A.ifB.whethe.C.whyD.that35.I.doesn..matte._____.bac.o.not.A.ifB.whetherC.thatD.when36.It’..grea.pit.____.w.won’.b.abl.t.finis.th.tas.o.time.A.whe....B.thatC.wh......D.where37.I.happene.____..wasn'.ther.tha.day.A.whe....B.whyC.wher.....D.that38._____ you have done might do harm to other people.A.Wha....B.ThatC.Whic.....D.Th.things39.____s.ough.t.tur.of.th.lights.A.Anyon...B.Th.personC.Whoeve....D.Who40._____ the 2000 Olympic Games won't be held in Beijing is known to all.A.Whethe...B.IfC.Wheneve....D.Tha.41.____.fail.t.se.thi.wil.mak..bi.mistake.A.Tha.B.WhoeverC.Whethe....D.Whethe.o.not42._.w.nee.mor.equipmen.i.quit.obvious.A.Wha....B.WhetherC.ThatD.Whatever43.Ha.i.bee.announce._____?A.whe.ar.th.plane.t.tak.offB.tha.ar.th.plane.t.tak.offC.wher.ar.th.plane.t.tak.offD.whe.th.plane.ar.t.tak.off44.Tha.i.____.w.al.suppor.hi.idea.A.whatB.whyC.whereD.when45.That’.____.w.shoul.do.A.thatB.whatC.howD.why46.____.i.troublin.m.i.____..don’.understan.____.h.saidA.What.that.whatB.What.what.whatC.That.that.whatD.Why.that.which47.Thing.wer.no.____.the.seeme.t.be.A.whenB.whyC.thatD.what48.That’.____..wan.t.say.A.al.whatB.whatC.al.whichD.wha.that49.That’.____..A.wher.ou.difference.lieB.ou.difference.li.thereC.wher.d.ou.difference.lieD.tha.wher.ou.difference.lie50.Tha.i.____..A.wher.live.h.thereB.wher.di.h.liveC.wher.h.livedD.tha.wher.h.lived参考答案一、1.表语从句；2.同位语从句；3.不是；4.主语从句；5.同位语从句；6.不是；7、表语从句；8、宾语从句；9、不是；10、宾语从句二、1.which.2.why.3.how.4.What.5.that.6.when.where.7.who(m).8.what.9.where.10.whether三、1~5 DBABD 6~10 DBBCA 11~15 CABCC 16~20 BADAB 21~25 CDAAA26~30 CCCDB 31~35 ABCDB 36~40 BDACD 41~45 BCDBB 46~50 ADBAC。
高考英语名词性从句练习题及答案详解高考英语名词性从句练习题及答案详解名词性从句(Noun clause)是在句子中起名词作用的句子。
名词性从句的功能相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语、介词宾语等。
下面是店铺带来的高考英语名词性从句练习题及答案详解，希望对你有帮助。
1.Dad is used to smoking and drinking.There's no chance ________ I'm able to talk him into ________.A.whether;giving it upB.of whether;giving them upC.that;getting rid of themD.which;stopping it答案 C [由smoking and drinking可知，A、D中的代词错误。
B项翻译不通。
注：that引导的是一个同位语从句。
]2.Keep in mind ________ you want others to respect you，you must respect others first.(2011·湖北鄂州市高三上学期模底考试)A.that whenB.that ifC.if whenD.when if答案 B [that引导一个宾语从句，宾语从句中又有一个if引导的条件状语从句。
]3.Shenzhen was only a small fishing village compared to ________ it is now.A.whichB.thatC.whatD.where答案 C [to后是宾语从句，is后缺表语，故用what。
]4.Think about ________ you are good at and ________ you enjoy and build on those abilities.A.what;thatB.what;whichC.that;thatD.what;what答案 D [think about后跟两个宾语从句，at后缺宾语，第一空需填what，enjoy和build缺宾语，第二空也需填what。
英语】名词性从句练习题（含答案）一、名词性从句1． He took a trip to Beijing last week and he saw at the Forbidden City impressed himdeeply.A.that B . how C . what D . which 【答案】 C【解析】【分析】句意：上周他到北京旅行了，他在故宫所看到的给他留下了深刻的印象。
分析句子结构可知，连词 and 后为一个名词性从句，因此应该使用 what 引导，且 what 在从句中作主语，故选 C。
【点评】考查名词性从句，本题涉及 what 引导的主语从句。
2． It has been pointed out _ plays a vital role in driving away one's anxiety is one'ssweet childhood memories.A.what thatB. whichC. thatD. that what【答案】 D【解析】【分析】句意：有人指出，驱除焦虑所起着至关重要的作用是童年美好的回忆。
本句时一个主语从句， it 作形式主语，真正的主语为 that what plays a vital role in driving away one's anxiety is one's sweet childhood memories. ，主语从句中又有一个主语从句，且此主语从句中缺少主语，所以用what 引导。
故选 D。
【点评】考查名词性从句，本题涉及 what 引导的主语从句。
3． is clear to the members of the committee is that the President will not give in to their demands.A. Who B . It C . As D . What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。
名词性从句专项练习题及答案含答案解析一、初中英语名词性从句1．________ the weather will not clear up until next week is bad news for us.A. AsB. IfC. WhetherD. That【答案】 D【解析】【分析】考查主语从句。
句意：直到下周天气才放晴，这对我们来说是坏消息。
此处是that引导的主语从句，that无实义，只其引导作用，故答案为D。
【点评】主语从句属于名词性从句，在名词性从句中，that无实义，只起连接作用，不做句子成分；if/whether起连接作用，不做句子成分，有实义“是否”。
做题时注意看从句是否少成分。
2．It was he said disappointed me.A. that; whatB. what; thatC. that; whichD. which; that【答案】 B【解析】【分析】句意：正是他说的话让我很失望。
这是一个强调句型,"it is/was that..."是固定搭配,"what he said"是被强调部分, 你可以发现去掉"it was that"后, 句子仍然完整。
"what he said"做主语,主语从句中"said"缺宾语用what补足，故选B。
【点评】考查主语从句的强调形式。
3．________ is the centre of our planetary system was a difficult concept to grasp in the Middle Ages.A. It's the sun and not the earthB. The sun and not the earthC. Being the sun and not the earthD. That the sun and not the earth【答案】 D【解析】【分析】句意：太阳而不是地球是我们行星系统的中心，这在中世纪是一个很难理解的概念。
名词性从句练习题及答案1. 主语从句：It is important that you finish your homework on time.- 答案：It is important that you finish your homework on time. (这是正确的句子结构，主语从句是 "that you finish your homework on time".)2. 宾语从句：I believe that he will succeed.- 答案：I believe that he will succeed. (宾语从句是 "that he will succeed".)3. 表语从句：The fact is that we have run out of time.- 答案：The fact is that we have run out of time. (表语从句是 "that we have run out of time".)4. 同位语从句：The news that he won the prize is exciting.- 答案：The news that he won the prize is exciting. (同位语从句是 "that he won the prize".)5. 宾语从句的疑问形式：What did he say he would do?- 答案：What did he say he would do? (宾语从句的疑问形式是"what he said he would do".)6. 宾语从句的否定形式：I don't think that he is honest.- 答案：I don't think that he is honest. (宾语从句的否定形式是 "that he is honest".)7. 宾语从句的省略：He promised to help us.- 答案：He promised to help us. (宾语从句的省略形式是"promised to help us".)8. 宾语从句的连接词：Whoever breaks the law will be punished. - 答案：Whoever breaks the law will be punished. (连接词是"whoever".)9. 宾语从句的时态：I heard that she had left the city.- 答案：I heard that she had left the city. (宾语从句使用了过去完成时 "had left".)10. 宾语从句的虚拟语气：I suggest that he study harder.- 答案：I suggest that he study harder. (宾语从句使用了虚拟语气 "study".)结束语通过这些练习题，学生可以加深对名词性从句的理解，提高在实际语境中运用这些从句的能力。
名词性从句专项练习3篇名词性从句专项练习Name 篇一1. We were about to set off on our way,_______it suddendly began to rain.2. He likes pop music, ________ I am fond of folk music.3. ____________had we arrived at the station ________the train left.(一---就)4. It was not _______you told me ______that I had any ideas ofit.5. It will be half a year ________I come back.6. ________invited to speak, you’d better keep silent in the meeting.7. She has been working in the factory __________she left school.8. We should go ________the Party needs us most.9. Many volunteers go to the remote place ________teachers are in great demand.10. You are free to go _______________you like.11. You’d better make a mark _________you have any questions.12. You’d better make a mark at the place ________you have any questions.13. ______ it is raining, we shall not go to the park.14. I’ll speak slowly ________you can understand me.15. I spoke______slowly _________all the class understood me.16. _______________you don’t lose heart, you will succeed.17. Do_____you are told to, or you’ll be fired.18. _____________it was raining hard, yet they went on playing football.19. Child ______he is, he knows a lot.20. ___________you believe it or not, it is true.21. You can take _________you like.22. Much____I like it, I won't buy it, for it’s too expensive.23. The old lady treats the boy _________he were her own son.答案与解析：1. A2. C3. B4. C5. C6. D7. C8. B9. C 10. A11. B 12. C 13. D 14. B 15. A 16. D 17. C 18. C 19. A 20. B1. A [ 注释：为了保持句子平衡，经常用”it”作为形式主语，放在句首，而把真正的主语从句放到后面。
名词性从句专项练习及答案解析概述名词性从句是由一个引导词引导的从句，充当名词的成分。
在英语中，名词性从句主要包括以下四种：主语从句、宾语从句、表语从句和同位语从句。
掌握名词性从句的用法对于提高英语写作和阅读能力至关重要。
本文将提供一些名词性从句的练习题，并附有详细的答案解析，帮助读者更好地掌握名词性从句的用法。
练习题题目一：选择最佳答案1.I don’t know ________. A. where does he live B. where he lives C. wherehe does live D. where lives he2.She is the girl ________ I met yesterday. A. who B. whom C. which D.whose3.________ is important to have a balanced diet. A. It B. What C. That D.This4.I am not sure ________. A. when will they arrive B. when they will arriveC. when did they arriveD. when do they arrive5.Can you tell me ________? A. how much is it B. how much it is C. howmany is it D. how many it is题目二：完成句子1.________ is necessary for you to practice English every day. (it)2.We didn’t know ________. (where)3.That is the reason ________. (why)4.Do you remember ________? (what)5.________ will go with you tomorrow. (who)题目三：改错1.I don’t know where does he live.2.She is the girl who I met yesterday.3.That is the reason that she was late.4.Can you tell me what time is it?5.I am not sure when did they arrive.答案解析题目一：选择最佳答案1. B. where he lives 解析：名词性从句作know的宾语，从句中用陈述句语序。
名词性从句练习题及答案名词性从句复习——练Ⅰ.单句语法填空1．Exactly ________ the potato was introduced into Europe is uncertain, but it was probably around 1565．答案：when句意：⼟⾖被引⼊欧洲的确切时间不能确定，但很可能是1565年左右。
分析句⼦结构可知，设空处为主语从句的引导词，从around 1565判断，这⾥指时间，故填when。
2．It shocked the world ________ the United States withdrew from some major agreements it had been committed to, including the 2015 Paris Agreement on climate change and the 2015 Iran Nuclear Deal．答案：that句意：令世界震惊的是，美国退出了它所承诺的⼀些主要协议，包括2015年《巴黎⽓候变化协定》和2015年《伊朗核协议》。
此处it是形式主语，真正的主语是that 引导的主语从句。
3．I need help now! I have to fix a leaking pipe in my bathroom but I'm not sure ________ to begin．答案：where句意：我现在需要帮助！我不得不修理洗⼿间⾥⼀个正在漏⽔的管⼦，但是我不确定从何处着⼿。
此处表⽰是管⼦哪⾥漏⽔，表⽰地点，填where。
4．Forty grams of meat per day is ________ people should consume in order to stay fit．答案：what句意：为了保持健康，⼈们每天应该消耗40克⾁。
“________ people should consume”是表语从句，该从句中，consume缺少宾语，且表⽰“所……的东西”，故要⽤what 引导该从句。
名词性从句跟踪练习再战初中考点---夯实基础1. ﹣Excuse me，do you know_______ ？﹣Sure，there is a bookstore down the street near here．A．where can I get some postcards B．where I can get some postcardsC．how can I get some postcards D．when I can get some postcards【答案】B【解析】考查宾语从句。
宾语从句应用陈述语序，所以排除A，C；选项B：我在哪里可以买一些明信片；选项D：我何时可以买一些明信片．根据下文：这里附近的街上有一个书店，故选B．2. This morning my mother asked me ______.A．why he is not here B．where Julia went last weekendC．what time is it D．how did my brother do it【答案】B【解析】考查宾语从句。
本句中宾语从句有两个考点，一要采用陈述句语序，二若主句是过去时，从句必需采用相对应的过去时．C D没有用陈述语序，排除；A 时态没有用过去时，排除；故选B.3. Sherlock Holmes asked the suspect what he ___ when the murder took place．A．was doing B．has done C．is doing D．would do【答案】A【解析】考查宾语从句。
根据Sherlock Holmes asked the suspect what he ___，主句是一般过去时态，可知what引导的宾语从句，应该是过去的某种时态，故排除B和C；根据what he ___ when the murder took place．凶杀案发生时，他正在干什么？可知应该用过去进行时态，应该是：was doing，故选A．4. —— Excuse me，could you tell me ________？—— On the Changjiang River．A．where the accident happens B．where the accident happenedC．where did the accident happen D. the accident happens where【答案】B【解析】考查宾语从句。
1.(2016·景德镇质检二)This still leaves the question of ________ local public services should be improved in the next five years.2.(2016·湖南益阳一中等三校联考)Tony eventually realized his childhood dream________he could play on one of the top teams.3.(2016·汕头金山中学期中)Let’s see ________starting off with a good fifteen －minute training of the smile muscles helped me during the day.4.(2016·揭阳市二模)Although he was a great genius, he suffered greatly.Some say that his madness was________he paid for his art.5.(2016·汕头市金山中学期中)Other vitamins are not made in the body. No one knows exactly________all vitamins work.6.(2016·珠海摸底)The man begged the angel to speak to God to see________he might break the rules.7.(2016·北京顺义一模)I still don’t know ________she’s planning to come to my birthday party or not.8.(2016·东北三校二模)Please hold on to________you are strong and try to improve the weak subjects.9.(2016·福建漳州七校联考)I wonder________it is that there are so many natural disasters across the world in 2010.10.(2016·安徽江南十校联考)—It’s my treat today.Is there anything particular you would like to have?—________you choose is fine with me.11 . (2016·浙江绍兴一中期中)What is concerning us greatly is________the workers held up in that area yesterday will be set free.12.(2016·河北唐山一中期中)The practical suggestion came from the representatives ________the new rule be adopted.13. (2016·北京东城期中)Faced with difficulties, you should believe your confidence is ________makes a difference.14.(2016·陕西西北工大附高六模)Sarah hopes to become a friend of ________shares her interests.15. (2016·浙江高考最后冲刺卷)Is there any possibility________we can see each other again after we part today?16. (2016·河南开封二模)After having checked all the windows and doors were closed and________all the lights were turned off，the teacher left the classroom. 17．(2016·四川乐山一中三模)________the new underground is available has not been made clear yet.18．(2016·山东高考仿真冲刺)—I rang you at about nine，but there was no reply. —Oh, that was probably________I was seeing the doctor.19．(2016·山东青岛一模)The problem is ________we can improve our reading skills in such a short time.20．(2016·江苏苏州调研)You should be grateful to your employees, because you wouldn’t be________you are now without them.21．(2016·北京人大附中教学检测)Nobody would stand out admitting the fact, for some reason，________they lost the game.22．(2016·北京朝阳一模)It is hard to imagine ________makes a top－level athlete. 23．(2016·江苏东台市时堰一模)It is known to us________it takes many years to gain the skills of an expert.24．(2016·北京丰台二模)You should consider carefully ________the car you want to buy is worth the money.25．(2016·山东师大附中五模)—It is not clear whether or how Sandy has influenced the vote.—That’s________I don’t agree.Obviously, the storm was in Obama’s favor.1.how[句意：这还留下一个问题，那就是，在接下来的五年里如何改进当地的公共服务。
本空需要连词引导宾语从句作介词of的宾语，连词在从句中作方式状语，因此用连接副词how引导这个从句。
]2.that[句意：托尼最后实现了他童年的梦想，可以在顶级的球队里打球。
抽象名词dream后面是同位语从句，说明dream的具体内容，同位语从句中that 不作成分，没有意义，只是起连接的作用。
]3.how[句意：让我们看看每天开始十五分钟的微笑训练对我有什么好处。
根据语境可知要用how。
]4.what[这里what引导表语从句，它在从句中作宾语。
]5.how[这里指没有人知道维他命是如何起作用的。
how如何。
]6.if/whether[句意：那个人乞求天使让她给上帝说说能否破了这个规矩。
这里if/whether“是否”引导的是宾语从句，它们只起连接的作用，在句中不作成分。
]7.whether[句意：我还不知道她是否计划参加我的生日聚会。
know后面接的是宾语从句，和or not连用的是whether，表示“是否”，所以答案为whether。
] 8.where[句意：请保持强项，同时尽量提升弱势学科。
考查宾语从句。
where在从句中作状语。
]9.why[句意：我想知道在2010年全世界为什么会发生这么多自然灾害。
分析句子结构可知此处是强调句型的特殊疑问句作宾语从句，应该用陈述语序，结构为“疑问词＋it＋is＋that＋其他”，答案为why。
]10.Whatever[句意：今天我请客。
你有什么特别想要的东西吗？你选什么都行。
Whatever引导主语从句，作choose的宾语。
]11.when/how/whether[句意：我们非常关心的是昨天被拦劫在那个地区的工人们什么时候/会怎样/是否会被释放。
此处缺表语从句的引导词且从句中不缺主要成分，故可用when，how或者whether。
]12.that[句意：来自代表们的切实可行的建议是：这项新规定应该被采纳。
分析句子结构可知此处考查同位语从句，说明suggestion的内容，而该从句意思非常完整，所以要用that引导。
]13.what[句意：面对困难的时候，你应该相信你的自信才是能起重要作用的东西。
引导词在表语从句中作主语且表示“物”，应该用what引导。
]14.whoever[句意：萨拉希望成为任何能够分享她的兴趣的人的朋友。
在介词of之后为宾语从句，在从句中缺少主语，而又要作连接词接从句，表示“无论是谁，任何人”，答案是whoever。
]15.that[句意：我们于今天分开之后还有可能再见到彼此吗？根据句意，句中从句为名词possibility的内容说明，且从句本身无疑问之意，因此答案为that。
]16.that[句意：在检查了所有的窗户和门被关好及所有的灯被关掉后，老师离开了教室。
checked后面接并列的宾语从句，第一个that可以省略，但第二个that不能省略。
]17．When[句意：新的地铁什么时候使用还不明确呢。
在主语从句中，主、系、表结构完整，根据句意，用连接副词，答案为When。
]18．when[句意：我在大约九点钟的时候给你打电话，可没有回复。
哦，那可能是我在看病的时候。
根据第一个人所说的话，答案是针对“九点钟”这个时间来解释的，所以在选择表语从句的连接词时，根据上下文的意思，答案用when。
] 19．how[句意：问题是我们如何在这么短的时间内提升阅读技能。
考查表语从句。
根据句意填how。
]20．where[句意：你应该感激你的雇员，因为没有他们你达不到现在的成就。
考查表语从句。
where you are now你现在所处的地位或成就等。
]21．that[句意：没有人站出来承认基于某种原因他们输了比赛的事实。
...they lost the game在句子中作the fact的同位语从句，从句结构完整。
