备考2020年高考英语二轮专题复习：单选题（句法）(含答案及解析)
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备考2020年高考英语二轮专题复习：单选题（句法）
一、单选题
1.（2019?江苏）We ha_ve_ent_ered into an age ________ dreams have the best chance of coming true.
A.?which???????????????????????????????????B.?what???????????????????????????????????C.?when???????????????????????????????????D.?that
2.（2019?_?±?è?????The_ doctor shares his phone number with the patients ________ they need medical assistance.
A.?if only?????????????????????????????B.?as if?????????????????????????????C.?even though?????????????????????????????D.?in case
3.（2019?江苏）Sc_ientis_ts have obtained more evidence ________ plastic is finding its way into the human body.
A.?what??????????????????????????????????B.?that??????????????????????????????????C.?which??????????????????????????????????D.?where
4.（2019?_?¤???????The_ professor warned the students that on no account _____________ use mobile phones in his class. 21世纪教育网版权所有
A.?should they??????????????????????B.?they should??????????????????????C.?dare they??????????????????????D.?they dare
5.（2019?天_??????Thei_r child is at the stage__________ she can say individual words but not full sentences.
A.?why??????????????????????????????????B.?where??????????????????????????????????C.?which??????????????????????????????????D.?what
6.（201_8????±?è?????B_y boat is the only way to get here, which is _______ we arrived.
A.?where???????????????????????????????????B.?when???????????????????????????????????C.?why???????????????????????????????????D.?how
7.（2018?江苏）_______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.
A.?Once???????????????????????????????????B.?Unless???????????????????????????????????C.?If???????????????????????????????????D.?When
8.（2018?江苏）Self_-drivi_ng is an area _______ China and the rest of the world are on the same starting line.
A.?that???????????????????????????????????B.?where???????????????????????????????????C.?which???????????????????????????????????D.?when
9.（2018?北_??????With_out his support, we wouldn't be _________ we are now.
A.?how???????????????????????????????????B.?when???????????????????????????????????C.?where???????????????????????????????????D.?why
10.（2018?北京）_________ we don't stop climate change, many animals and plants in the world will be gone.
A.?Although??????????????????????????????????B.?While??????????????????????????????????C.?If??????????????????????????????????D.?Until
11.（2018?北_??????This_ is _________ my father has taught me—to always face difficulties and hope for the best.
A.?how???????????????????????????????????B.?which???????????????????????????????????C.?that???????????????????????????????????D.?what
12.（20_18????????????_In any unsafe situation, simply _________ the button and a highly-trained agent will get you the help you need. 【版权所有：21教育】
A.?press??????????????????????????????B.?to press??????????????????????????????C.?pressing??????????????????????????????D.?pressed
13.（2018?北京）She _and_he_r family bicycle to work, _________ helps them keep fit.
A.?which?????????????????????????????????????B.?who?????????????????????????????????????C.?as?????????????????????????????????????D.?that
14.（2018?天津）The__gold__medal will be awarded to ___________ wins the first place in the bicycler.
A.?whomever?????????????????????????B.?wherever?????????????????????????C.?whoever?????????????????????????D.?whatever
15.（2018?天津）Kae, _________sister I shared a room with when we were at college, has gone to work in Australia.
A.?whom???????????????????????????????????B.?that???????????????????????????????????C.?whose???????????????????????????????????D.?her
16.（2018?_?¤???????Let_'s not pick these peaches until this weekend ___________they get sweet enough to be eaten.
A.?ever since???????????????????????????B.?as if???????????????????????????C.?even though???????????????????????????D.?so that
17.（2018?_?¤???????It__was only when the car pulled up in front of our house ___________we saw Lily in the passenger seat.
A.?which??????????????????????????????????B.?that??????????????????????????????????C.?when??????????????????????????????????D.?where
18.（2017?北京） The__littl_e problems ______ we meet in our daily lives may be inspirations for great inventions.
A.?that????????????????????????????????????B.?as????????????????????????????????????C.?where????????????????????????????????????D.?when?
19.（2017?北京） ______ birds use their feathers for flight, some of their feathers are for other purposes.
A.?Once????????????????????????????????B.?If????????????????????????????????C.?Although????????????????????????????????D.?Because
20.（2017?北京）Jane__moved_ aimlessly down the tree-lined street, not knowing ______she was heading.
A.?why???????????????????????????????????B.?where???????????????????????????????????C.?how???????????????????????????????????D.?when
21.（20_17????????????_Every year, ______ makes the most beautiful kite will win a prize in the Kite Festival.
A.?whatever?????????????????????????B.?whoever?????????????????????????C.?whomever?????????????????????????D.?whichever
22.（2017_????±?è?????We_ choose this hotel because the price for a night here is down to $20,half of_________it used to charge.
A.?that???????????????????????????????????B.?which???????????????????????????????????C.?what???????????????????????????????????D.?how
23.（2017_????±?è?????Lo_cated_________the Belt meets the Road,Jiangsu will contribute more to the Belt and Road construction.21教育网
A.?why??????????????????????????????????B.?when??????????????????????????????????C.?which??????????????????????????????????D.?where
24.（20_17????±?è?????_In 1963 the UN set up the World Food Programme,one of_____purposes is to relieve worldwide starvation.
A.?which??????????????????????????????????B.?it's??????????????????????????????????C.?whose??????????????????????????????????D.?whom
25.（2017_????±?è?????Th_e publication of Great Expectations,which_________both widely reviewed and highly praised,strengthened Dickens' status as a leading novelist.
A.?is???????????????????????????????????????B.?are???????????????????????????????????????C.?was???????????????????????????????????????D.?were
26.（201_7????¤???????__Nowadays, cycling, along with jogging and swimming, _______ as one of the best all-round forms of exercise.
A.?regard?????????????????????????B.?is regarded?????????????????????????C.?are regarded?????????????????????????D.?regards
27.（2017_????¤???????_M_y eldest son, _______ work takes him all over the world, is in New York at the moment.
A.?that????????????????????????????????????B.?whose????????????????????????????????????C.?his????????????????????????????????????D.?who
28.（2017?天_??????_It__was when I got back to my apartment ______ I first came across my new neighbors.
A.?who???????????????????????????????????B.?where???????????????????????????????????C.?which???????????????????????????????????D.?that
29.（2017?天津） She__asked_ me _______ I had returned the books to the library, and I admitted that I hadn't.
A.?when????????????????????????????????B.?where????????????????????????????????C.?whether????????????????????????????????D.?what
30.Countr_y_life_ gives me peace and quiet, which is _____ I can't enjoy while living in a big city.
A.?what???????????????????????????????????B.?where???????????????????????????????????C.?why???????????????????????????????????D.?that
31.Life is to _be_enj_oyed. There is no point in giving up something you enjoy ________ you get something back that's even better. 21cnjy.com
A.?because?????????????????????????????????B.?so?????????????????????????????????C.?unless?????????????????????????????????D.?though
32.The land i_s_know_n for a historic site with beautifully colored walls, ????are painted the events of the past.
A.?of which???????????????????????B.?from where???????????????????????C.?on which???????????????????????D.?about where
33.—Will you go to the picnic tomorrow?
—Not ?????my dear dog is allowed to accompany me.
A.?if????????????????????????????????????B.?until????????????????????????????????????C.?unless????????????????????????????????????D.?when
34.Anderson ma_de_the_ announcement at the conference ????the company would be closing.
A.?that?????????????????????????????????B.?when?????????????????????????????????C.?where?????????????????????????????????D.?whether
35.________caugh_t in the rain unexpectedly, we still enjoyed the journey very much.
A.?When????????????????????????????????B.?As????????????????????????????????C.?Unless????????????????????????????????D.?Although
36.You should__set_a_ goal and see ________ you can achieve it in the coming exam.
A.?which????????????????????????????????B.?what????????????????????????????????C.?whether????????????????????????????????D.?when
37.lt w_as_in__December, 2018 ________ Chairman Xi and President Trump met in Argentina.
A.?when??????????????????????????????????B.?that??????????????????????????????????C.?before??????????????????????????????????D.?since
38.Not _until__the end of the performance ________ the chance to take photos with the respectable actor.
A.?the audience got??????????????????????????????????????????????B.?the audience had got
C.?did the audience get???????????????????????????????????????D.?had the audience got2·1·c·n·j·y
39.Breaking__up_is_ the business of the two lovers, ________ no other person should be involved.
A.?which????????????????????????????????B.?in that????????????????????????????????C.?that????????????????????????????????D.?in which
40.The new t_eacher_ was so well-organized that she began ________ we stopped yesterday so that no point was left out. 【出处：21教育名师】
A.?when????????????????????????????????B.?in which????????????????????????????????C.?how????????????????????????????????D.?where
41.This was ret_urned__because the person ________ this letter was addressed had died three years ago.
A.?to whom?????????????????????????????B.?to which?????????????????????????????C.?which?????????????????????????????D.?whom
42.Is it he _or_you_ ________ in charge of the job and supposed to complete it punctually?
A.?who is?????????????????????????????B.?that is?????????????????????????????C.?who are?????????????????????????????D.?whom are
43.The scientist__does__not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.
A.?until???????????????????????????????B.?because???????????????????????????????C.?though???????????????????????????????D.?unless
44.Although Mai_ler_wa_s not alone in welcoming the flowering of creativity, the authorities hated it, ________ did many passengers. www.21-cn-jy.com
A.?which??????????????????????????????????????B.?as??????????????????????????????????????C.?that??????????????????????????????????????D.?so
45.There are als_o_peop_le who object to fairy stories on the grounds ________ they are not objectively true, and that giants, witches, two-headed dragons etc do not exist. 21*cnjy*com
A.?that???????????????????????????????????B.?what???????????????????????????????????C.?which???????????????????????????????????D.?when
46.Another _study__of 302 volunteers at hospitals in Chicago focused on individual differences in the degree ________ people view "volunteer" as an important social role.
A.?by which?????????????????????????B.?to which?????????????????????????C.?in which?????????????????????????D.?from which
47.I decided__to_do_ a random act of kindness last year. And ________ that the person I would end up helping most would be myself.
A.?I litt_le_kne_w????????????????B.?little did I knew????????????????C.?little did I know????????????????D.?little I knew
48.________the__tower_ building, where you can see the whole city.
A.?Standing on the top of????????????????????????????????????B.?If you climb to
C.?When you reach the top of?????????????????????????????D.?Get to the top of
49.________ you exercise regularly as well, you won't be able to lose weight only by eating less.
A.?Once???????????????????????????????????B.?When???????????????????????????????????C.?If???????????????????????????????????D.?Unless
50.—I spend two weeks in Beijing last year.
—Then you must _have_v_isited the Great Wall during your stay, ________ you?
A.?mustn't???????????????????????????????B.?didn't???????????????????????????????C.?haven't???????????????????????????????D.?hadn't
答案解析部分
一、单选题
1.答案： C
解析：句意：我们已经_è???????°?????????_时代，在这个时代梦想实现的机会最大。句中先行词为an age（一个时代），且先行词在从句中做时间状语，所以关系词用when。 故选C。
【点评】考查定语从句，本题涉及关系副词when引导的限制性定语从句。
2.答案： D
解析：句意：医生_??????????????????_手机号码，以防病人需要医疗援助。A. if only“是......多好”；B. as if“好像，仿佛”；C. even though“即使，尽管”；D. in case“以备，以防，免得”。故选D。
【点评】考查状语从句，区分if only；as if；even though和in case的含义。
3.答案： B
解析：句意：科学家_?·????è?·???????¤?_证据，塑料正在进入人们的体内。从句不缺句子成分，且与evidence指代的是同一事件，用that引导同位语从句。故选B。
【点评】考查名词性从句，本题涉及that引导的同位语从句。
4.答案： A
解析：句意：这位教_???è??????????????_，在他的课堂上，决不应该使用手机。on no account“决不”，否定词放在句首，句子使用部分倒装，should应该，dare敢于，根据句意表示“应该”，故选A。
【点评】考查倒装，掌握on no account的应用。
5.答案： B
解析：句意：他_????????????????¤?_于能说单个单词而不能说完整句子的阶段。句中she can say individual words but not full sentences是一个定语从句，先行词是the stage，关系词在定语从句中作地点状语，用关系副词where，故选B。
【点评】考查定语从句，本题涉及关系副词where引导的限制性定语从句。
6.答案：D
解析：_????????????è?????_到这儿的唯一方式，那就是我们怎么到达的。where哪里；when何时；why为什么；how怎样。这是一个表语从句，by boat表示方式，所以用how，故答案为D。
【点评】考查名词性从句的引导词，弄清从句所缺句子成分，注意语境中的暗示信息。
7.答案：B
解析：句意：如果你_??????????????????_两晚之后你将失去集中注意力、做出计划以及保持活力的能力。once一旦；unless如果不；除非；if如果；when当……时。根据前后句之间的逻辑关系，所以答案为B。
【点评】考查引导条件状语从句的关联词的选择，熟记单词，理解句意，根据语句的逻辑关系判断。
8.答案：B
解析：句意：_è????¨é??é????????_个中国和世界其它地区在同一起跑线上的领域。这是一个定语从句，先行词area指地点，而且从句主系表结构完整，只缺少状语，所以用where引导，故答案为B。
【点评】考查引导定语从句的关系词。掌握定语从句的基本用法，弄清先行词和从句的结构，便可作出准确判断。
9.答案：C
解析：_??????????????????_的支持，我们不能到达现在的地步。此处是表语从句，how怎样；如何；when何时；where……的地方；何地；why为什么；根据句意可知指现在的处境，故答案为C。
【点评】考查名词性从句的引导词，理解句意，根据语境判断，注意句子的逻辑。
10.答案：C
解析：_??????????????????_们不阻止气候变化，世界上的许多动植物会消失。although虽然；while虽然；然而；if如果；until直到。根据句意可知此处表示假设，所以用if引导条件状语从句，故答案为C。
【点评】考查引导状语从句的连词辨析。通读句子，弄清前后句之间的逻辑关系，将连词代入句中，符合逻辑的即为正确答案。
11.答案：D
【解析】【分_???????????????è??_是我爸爸所教给我的——要直面困难心怀希望。这是表语从句，根据teach sb sth可知从句中缺少直接宾语，所以用what引导。how怎样；which哪一个；that无意义也补充当从句的成分，故答案为D。
【点评】考查表语从句中的引导_è???????¨?????????_握名词性从句连词的基本使用规则：连接词that不作成分；连接代词如what在从句中作主语或宾语；连接副词像when、where、how在从句中作状语。
12.答案：A
解析：句意：在_??????????????¨???_环境中，只按一下按钮，一个训练有素的工作人员就会带给你所需要的帮助。句型：祈使句+and/or+表将来的陈述句。所以此处是祈使句部分，所以用动词原形，故答案为A。
【点评】考查并列句的固定句型，牢记基本结构即可。
13.答案：A
解析：句意：她和家人_é??è??????????????_这帮助他们保持健康。这是一个非限制性定语从句，空格处指代前面整个句子，所以用which引导非限制性定语从句，而且which在从句中作主语。who指人；that不引导定语从句；as通常翻译成“正如；就像”，所以此处可以排除，故答案为A。
【点评】考查引导定语从句的关系词，掌握定语从句的基本定义和关系词的基本用法即可判断正确答案。
14.答案：C
解析：句意：无论谁获_???è??è??è?????è??_第一名，金牌将授予他。分析句子可知，宾语从句中缺少主语，故用whoever，表示“任何人，无论谁”。故答案选C。
【点评】考查名词性从句，本题涉及whoever引导的宾语从句的应用。
15.答案：C
解析：句意：凯特已经去_????¤§???????·????_了。我们在大学的时候，我和她的姐姐共住一室。分析句子，句中先行词为Kate，在非限定性定语从句中作名词sister的定语，故用关系代词whose。故选C。
【点评】考查定语从句，本题涉及关系代词whose引导的非限制性定语从句的应用。
16.答案：D
解析：句意：让我们这个_??¨?????????è?????_桃子，这样的话，它们吃起来就变得足够的甜。A. ever since“自那时起”；B. as if“好像”；C. even though“尽管”；D. so that“以便”。从句为目的状语从句，故用so that引导。选D。
【点评】考查状语从句，本题涉及so that引导的目的状语从句的应用。
17.答案：B
解析：句意：只有当汽_è????¨????????????_前停下来我们才看到在乘客位置的莉莉。这里是强调句，强调句型结构为：It is/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。本题强调时间状语only when the car pulled up in front of our house。故选B。
【点评】考查强调句，掌握其结构_???It_is_/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。
18.答案： A
解析：我_??????????????????_遇到的小问题可能是伟大发明的灵感．A 考查定语从句．这是一个限制性定语从句．本句中的先行词是problems，在定语从句we meet in our daily lives中做宾语，所以用关系代词that引导．where 和when引导定语从句在从句中做状语．as引导非限制性定语从句．所以答案选A．
【点评】定语从句又称为形容词性_????????????è§????_年高考试题，我们可以发现该语法项目是测试中的热点与难点，解定语从句的题目首先要知道哪一句是主句，哪一句是从句，被修饰的词是谁，从句中的句子成分缺失什么，根据缺失成分的不同从而选出相对应的关系代词或者关系副词，从而选出正确的答案，解题的关键是从句句子的成分分析．
19.答案： C
解析：虽然_é???±???¨??????é??_行，但它们的一些羽毛是为了其他用途．once"一旦"，引导条件状语从句．if"如果"，引导条件状语从句．although"尽管，虽然"，引导让步状语从句．because"因为"，引导原因状语从句．分析可知前后两句话之间是逻辑上的"让步"关系，再结合句子所表达的意思可知答案选C．
【点评】本题考查从属连词的用法．连词的用法辨析，要注意分析主从句之间的逻辑关系，再确定相应的连词，同时注意不同的连词的语义及用法区别．
20.答案： B
解析：Ja_ne????????????_沿着绿树成荫的街道走着，不知道她该往何方．句中she was heading作knowing的宾语，是一个宾语从句；前面的aimlessly表示漫无目的，说明的是不知道目的地，要用where来连接．故选B．
【点评】从属连词是连词的一种，_??¨????????????è??_性从句和状语从句．大致可分为三大类：that（无词义，不做成分）if，whether （表达是否的意义，但不做句子成分）； 连接代词：who，whom，whose，what，which，whatever，whoever，whichever（有词义，在句子中可作主语、表语、宾语）；连接副词：when，where，why，how，how many，how long，how far，however，whenever，wherever （有词义，作从句的状语）．学习时，要注意区分和掌握．
21.答案： B
解析：每年．_???è????????é?????_是最漂亮的，都会获得风筝节的奖品．根据句式可知，考查主语从句．句子缺少主语成分，再结合具体意思，"无论谁做的风筝漂亮都会获奖"，确定whoever．该句式等于Anyone who makes the most beautiful kite will win a…whomever在句子里不能充当主语；whatever是无论什么；whichever是无论哪一个都不符合题意．
【点评】考生在答题时要分析句子结构，来判断所缺成分并结合具体语境灵活使用．
22.答案：C
【解析】【分_????????????:__我们选择这家旅馆，因为它每晚的价格下降到了20美元，是过去价格的一半。“half of_________it used to charge”是$20的同位语，即原来价格的一半是现在的$20；另外，of后跟名词或名词短语构成介宾短语，所以，这里是宾语从句；宾语从句中的charge后面缺少宾语，所以用what来引导宾语从句，并充当宾语从句的宾语，故选C。
【点评】考查宾语从句的引导词。
23.答案： D
解析：句意_???????????????è·?_的交汇点，江苏将为一带一路的建设做出更大的贡献。词组：be located in……位于……，后跟地点名称，即“in+地点名称”在句中作地点状语，所以where代替并引导状语从句。故选D。
【点评】考查引导状语从句的关联词。
24.答案： C
解析：_???????????¨19_63年联合国设立世界粮食计划署，它的目的之一是缓解世界饥饿问题。这是一个定语从句，先行词是the World Food Programme，与purposes构成逻辑上的所属关系，故用whose，因此选C.
【点评】考查定语从句的引导词。
25.答案：C
解析：句意：《远大_????¨?????????????_增强了狄更斯作为一个杰出的小说家的地位，这本书得到了广泛的阅读和高度的赞扬。which引导定语从句，并在从句中作从句的主语，指代先行词Great Expectations，“Great Expectations”是书名，看做单数，所以定语从句的谓语也要使用单数形式；根据“strengthened”可知，“被广泛阅读和得到高度评价”发生在过去，故选C。
【点评】考查主谓一致和动车的时态。
26.答案： B
解析：句意_?????°??¨???é??è??_还有慢跑和游泳被认为是最好的全能运动之一。regard……as……把……看作……。cycling, along with jogging and swimming与regard构成被动关系，由along with连接的多个名词作主语时，谓语与along with前的名词保持一致，cycling是第三人称单数形式，故选B。
【点评】考查主语一致和被动语态。
27.答案： B
解析：句意：_???????¤§?????????_他的工作让他奔走于世界各地，现在在纽约。这是一个定语从句，work与先行词 son是所属关系，故用whose引导定语从句，因此选B。
【点评】考查定语从句的引导词。
28.答案： D
解析：句意：是当我回到我的公寓时我才第一次遇到我的新邻居们。这是一个强调句型It was+被强调部分+that+其他，故选D。
【点评】考查强调句型。
29.答案： C
【解析】【分析_???????????????é??_我是否把书还给图书馆了，我承认我没有。when何时；where哪里；whether是否；what什么。根据后半句可知选C。【来源：21·世纪·教育·网】
【点评】考查宾语从句的引导词。
30.答案： A
解析：句意：乡_??????????????????_宁静与安宁，这是生活在大城市我无法享受到。分析句子结构可知：系动词is后面应为表语从句，动词enjoy缺少宾语；where、why属于连接副词，不能做宾语；that在表语从句中不充当句子成分，what属于连接代词，引导这个表语从句，并在句中做enjoy的宾语。故A项正确。
【点评】考查表语从句。应注意分析句子结构，看从句所缺少的成分，得出正确答案。
31.答案： C
解析：句意：生_????????¨?????????_的，放弃你喜欢的东西毫无意义，除非你能得到更好的东西。because意为因为，引导原因状语从句；so意为因此，引导结果状语从句；unless意为除非，引导条件状语从句；though意为尽管，引导让步状语从句。根据句意可知本句应为条件状语从句，应用unless引导，故C项正确。
【点评】考查状语从句连接词。应注意区分不同类型的状语从句，根据语境选出合适的连接词。
32.答案： C
解析：_?????????è????????_地以拥有美丽的彩色墙壁历史遗址而闻名，墙上画着过去发生的事情。这里是定语从句和倒装句相结合，句子正常的语序是the events of the past are painted on the wall, 所以应该是on which，故选C。
【点评】考查介词+which引导的定语从句，注意倒装结构。www-2-1-cnjy-com
33.答案： C
【解析】【分析_??????????????????_你明天去野餐吗？——如果我的狗不允许陪伴着我的话我不去。原句表达为I will not go to the picnic tomorrow if my dog cannot accompany me.此处If not相当于unless"除非", 主句简化成了not，故选C。
【点评】考查条件状语从句。注意连词if，until，unless跟when的用法。2-1-c-n-j-y
34.答案： A
解析：句_???????????·?????¨_会上宣布公司将关闭。本句是个同位语从句,用that 后面加句子来解释说明announcement 的内容，且that在句中不做成分，故选A。
【点评】考查同位语从句关系词。注意分析句子成分。
35.答案： D
解析：句意：_?°????????¤???°è??_雨淋了，我们仍然享受这次旅行。A. When“当……时”；B. As“因为”；C. Unless“除非”；D. Although“尽管”。根据"we still enjoyed the journey very much."可知此处表示"尽管"，故选D。
【点评】考查状语从句，本题涉及although引导的让步状语从句。
36.答案： C
【解析】【分_????????????:???_应该设定一个目标并看你是否能在即将来临的考试中达到。根据句意可知,此处表示"是否",故选C。
【点评】考查宾语从句，本题涉及whether引导的宾语从句。
37.答案： B
解析：句意：_???è??????????????_特朗普总统是在2018年12月份在阿根廷会面的。分析句子结构可知，此处为强调句型，其基本结构为"it is+被强调部分+that+其余部分"，本句强调的是时间状语in December， 2018，故选B。
【点评】考查强调句型，掌握其结构“it is+被强调部分+that+其余部分”。21教育名师原创作品
38.答案： C
解析：句意：_?????°è?¨?????????_，观众们才有机会和这位受人尊重的演员合影。not until位于句首时，主句用部分倒装，表演结束提示用一般过去时，A、B两项都没有倒装，故选C。
【点评】考查倒装句和时态，本题涉及一般过去时和not until位于句首时，主句用部分倒装的结构。
39.答案： D
解析：句意_??????????????¤???_相爱的人的事，其他人不应该卷入。先行词是前面一句话，“被卷入”用be involved in，in介词提前，关系代词要用which，故选D。
【点评】考查定语从句，本题涉及“介词+which”引导的非限制性定语从句。
40.答案： D
【解析】【分析_????????????è?????_新老师条理非常清楚，她从我们昨天停止的地方开始，没有遗漏要点。这里不是定语从句，因为没有先行词，所以不能用in which；表示昨天我们停止的地方，表地点，要用where，故选D。
【点评】考查状语从句，本题涉及where引导的地点状语从句。21·cn·jy·com
41.答案： A
解析：句意：这封信被退_??????????????????_信人三年前去世了。分析句子可知，the person为先行词，在后面的定语从句中，作介词的宾语，而定语从句中涉及be address to sb“给……写信”。所以介词为to。故选A。
【点评】考查定语从句，本题涉及“介词+关系代词”引导的限制性定语从句。
42.答案： C
解析：句意_?????????è????????_负责这个工作都应该准时完成这个工作？这是强调句的一般疑问句，因为是强调的是人，连接词用that和who都可以，由or连接两个以上主语时，动词和最接近的主语一致，由此可以排除A和B；whom引导定语从句时在从句中作宾语，所以排除D。故选C。
【点评】考查强调句和主谓一致，掌握强调句型的结构。
43.答案： B
解析：句意_???è??????§???????_研究自然不是因为这样做有用。他研究自然是因为他从中会得到快乐。A. until“直到”；B. because“因为”；C. though“尽管”；D. unless“除非”。由下一句提示可知，本句为because引导的原因状语从句。故选B。
【点评】考查状语从句，本题涉及because引导的原因状语从句。21*cnjy*com
44.答案： B
【解析】【分_????????????_???_尽管梅勒并不是唯一一个欢迎创造力的蓬勃发展，但当局痛恨它，许多乘客也一样痛恨它。根据语境可知，本句不是定语从句，因此不能用which，当然也不选that。分析句子可知，空前后都是句子，本空应是一个连词。分析语境可知，是指“......也一样，像......一样”，常用于“as+助动词/情态动词”。而"so"作为“如此”讲，是副词。本句如果用so的话，要用 and so...，即as=and so。如Your son is clever, as is Tom.= Your son is clever, and so is Tom你儿子很聪明，汤姆也一样。故选B。
【点评】考查倒装句，本题涉及as引导的部分倒装。
45.答案： A
解析：句意：也有人_?????????è????????_，理由是它们在客观上不真实，巨人、女巫、双头龙等不存在。分析句子可知，本句空格是同位语从句的连接词。其中"they are not objectively true, and that giants, witches, two-headed dragons etc. do not exist."是对名词the grounds加以解释说明，二者是同位语的关系。分析句子可知，同位语从句中不缺少成分，只是缺少一个引导词。连接词that在名词从句中不做成分，只起引导词的作用，故选A。
【点评】考查名词性从句，本题涉及that引导的同位语从句。
46.答案： B
解析：句_????????????é??é??_对芝加哥医院302名志愿者的研究集中在个体差异上，人们在一定程度上把“志愿者”视为一个重要的社会角色。分析句子可知，本句是一个定语从句，其中先行词是degree，在定语从句中作to的宾语，因此要用to which。故选B。
【点评】考查定语从句，本题涉及“介词+which”引导的限制性定语从句。21·世纪*教育网
47.答案： C
解析：句意：去年我决_???é??????????????_好事。我几乎不知道，最终得到帮助最多的人会是我自己。分析句子可知，后面的句子中的little是半否定词，意为“少到几乎没有”，在英语中否定词或半否定词置于句首，句子要部分倒装，故选C。
【点评】考查倒装，本题涉及否定词或半否定词置于句首的部分倒装。
48.答案： D
解析：句意_?????°è?????é?????_在那里你就能看见整个城市。这里逗号后是句子，已经有连词，所以空格处不能再用连词，故排除BC；又因为逗号后是从句，所以逗号前必须是主句，故选D。
【点评】考查祈使句，掌握祈使句的应用。
49.答案： D
解析：句意_??????????????????_常锻炼，只减少饮食，也不能减轻体重。A. Once“一旦”；B. When“当.....的时候”；C. If“如果”；D. Unless“如果不，除非”。分析句子可知，从句与主句属于条件关系，如果不经常锻炼，就不能减轻体重，故选D。
【点评】考查状语从句，本题涉及unless引导的条件状语从句。
50.答案： B
解析：句意_??????????????????_在北京呆了两周。——那么你在逗留期间一定参观过长城，是吗？题中last summer表示的是一个确定的过去时间，可认定must have visited是对“过去”的推断,用一般过去时反问。此处是反意疑问句，前半句肯定，后半句应该用否定形式，故选B。
【点评】考查情态动词，掌握含有must have done的反义疑问句。
_21?????????è?????(www.21cnjy.com)_
备考2020年高考英语二轮专题复习：单选题（句法）
一、单选题
1.（2019?江苏）We ha_ve_ent_ered into an age ________ dreams have the best chance of coming true.
A.?which???????????????????????????????????B.?what???????????????????????????????????C.?when???????????????????????????????????D.?that
2.（2019?_?±?è?????The_ doctor shares his phone number with the patients ________ they need medical assistance.
A.?if only?????????????????????????????B.?as if?????????????????????????????C.?even though?????????????????????????????D.?in case
3.（2019?江苏）Sc_ientis_ts have obtained more evidence ________ plastic is finding its way into the human body.
A.?what??????????????????????????????????B.?that??????????????????????????????????C.?which??????????????????????????????????D.?where
4.（2019?_?¤???????The_ professor warned the students that on no account _____________ use mobile phones in his class. 21世纪教育网版权所有
A.?should they??????????????????????B.?they should??????????????????????C.?dare they??????????????????????D.?they dare
5.（2019?天_??????Thei_r child is at the stage__________ she can say individual words but not full sentences.
A.?why??????????????????????????????????B.?where??????????????????????????????????C.?which??????????????????????????????????D.?what
6.（201_8????±?è?????B_y boat is the only way to get here, which is _______ we arrived.
A.?where???????????????????????????????????B.?when???????????????????????????????????C.?why???????????????????????????????????D.?how
7.（2018?江苏）_______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.
A.?Once???????????????????????????????????B.?Unless???????????????????????????????????C.?If???????????????????????????????????D.?When
8.（2018?江苏）Self_-drivi_ng is an area _______ China and the rest of the world are on the same starting line.
A.?that???????????????????????????????????B.?where???????????????????????????????????C.?which???????????????????????????????????D.?when
9.（2018?北_??????With_out his support, we wouldn't be _________ we are now.
A.?how???????????????????????????????????B.?when???????????????????????????????????C.?where???????????????????????????????????D.?why
10.（2018?北京）_________ we don't stop climate change, many animals and plants in the world will be gone.
A.?Although??????????????????????????????????B.?While??????????????????????????????????C.?If??????????????????????????????????D.?Until
11.（2018?北_??????This_ is _________ my father has taught me—to always face difficulties and hope for the best.
A.?how???????????????????????????????????B.?which???????????????????????????????????C.?that???????????????????????????????????D.?what
12.（20_18????????????_In any unsafe situation, simply _________ the button and a highly-trained agent will get you the help you need. 【版权所有：21教育】
A.?press??????????????????????????????B.?to press??????????????????????????????C.?pressing??????????????????????????????D.?pressed
13.（2018?北京）She _and_he_r family bicycle to work, _________ helps them keep fit.
A.?which?????????????????????????????????????B.?who?????????????????????????????????????C.?as?????????????????????????????????????D.?that
14.（2018?天津）The__gold__medal will be awarded to ___________ wins the first place in the bicycler.
A.?whomever?????????????????????????B.?wherever?????????????????????????C.?whoever?????????????????????????D.?whatever
15.（2018?天津）Kae, _________sister I shared a room with when we were at college, has gone to work in Australia.
A.?whom???????????????????????????????????B.?that???????????????????????????????????C.?whose???????????????????????????????????D.?her
16.（2018?_?¤???????Let_'s not pick these peaches until this weekend ___________they get sweet enough to be eaten.
A.?ever since???????????????????????????B.?as if???????????????????????????C.?even though???????????????????????????D.?so that
17.（2018?_?¤???????It__was only when the car pulled up in front of our house ___________we saw Lily in the passenger seat.
A.?which??????????????????????????????????B.?that??????????????????????????????????C.?when??????????????????????????????????D.?where
18.（2017?北京） The__littl_e problems ______ we meet in our daily lives may be inspirations for great inventions.
A.?that????????????????????????????????????B.?as????????????????????????????????????C.?where????????????????????????????????????D.?when?
19.（2017?北京） ______ birds use their feathers for flight, some of their feathers are for other purposes.
A.?Once????????????????????????????????B.?If????????????????????????????????C.?Although????????????????????????????????D.?Because
20.（2017?北京）Jane__moved_ aimlessly down the tree-lined street, not knowing ______she was heading.
A.?why???????????????????????????????????B.?where???????????????????????????????????C.?how???????????????????????????????????D.?when
21.（20_17????????????_Every year, ______ makes the most beautiful kite will win a prize in the Kite Festival.
A.?whatever?????????????????????????B.?whoever?????????????????????????C.?whomever?????????????????????????D.?whichever
22.（2017_????±?è?????We_ choose this hotel because the price for a night here is down to $20,half of_________it used to charge.
A.?that???????????????????????????????????B.?which???????????????????????????????????C.?what???????????????????????????????????D.?how
23.（2017_????±?è?????Lo_cated_________the Belt meets the Road,Jiangsu will contribute more to the Belt and Road construction.21教育网
A.?why??????????????????????????????????B.?when??????????????????????????????????C.?which??????????????????????????????????D.?where
24.（20_17????±?è?????_In 1963 the UN set up the World Food Programme,one of_____purposes is to relieve worldwide starvation.
A.?which??????????????????????????????????B.?it's??????????????????????????????????C.?whose??????????????????????????????????D.?whom
25.（2017_????±?è?????Th_e publication of Great Expectations,which_________both widely reviewed and highly praised,strengthened Dickens' status as a leading novelist.
A.?is???????????????????????????????????????B.?are???????????????????????????????????????C.?was???????????????????????????????????????D.?were
26.（201_7????¤???????__Nowadays, cycling, along with jogging and swimming, _______ as one of the best all-round forms of exercise.
A.?regard?????????????????????????B.?is regarded?????????????????????????C.?are regarded?????????????????????????D.?regards
27.（2017_????¤???????_M_y eldest son, _______ work takes him all over the world, is in New York at the moment.
A.?that????????????????????????????????????B.?whose????????????????????????????????????C.?his????????????????????????????????????D.?who
28.（2017?天_??????_It__was when I got back to my apartment ______ I first came across my new neighbors.
A.?who???????????????????????????????????B.?where???????????????????????????????????C.?which???????????????????????????????????D.?that
29.（2017?天津） She__asked_ me _______ I had returned the books to the library, and I admitted that I hadn't.
A.?when????????????????????????????????B.?where????????????????????????????????C.?whether????????????????????????????????D.?what
30.Countr_y_life_ gives me peace and quiet, which is _____ I can't enjoy while living in a big city.
A.?what???????????????????????????????????B.?where???????????????????????????????????C.?why???????????????????????????????????D.?that
31.Life is to _be_enj_oyed. There is no point in giving up something you enjoy ________ you get something back that's even better. 21cnjy.com
A.?because?????????????????????????????????B.?so?????????????????????????????????C.?unless?????????????????????????????????D.?though
32.The land i_s_know_n for a historic site with beautifully colored walls, ????are painted the events of the past.
A.?of which???????????????????????B.?from where???????????????????????C.?on which???????????????????????D.?about where
33.—Will you go to the picnic tomorrow?
—Not ?????my dear dog is allowed to accompany me.
A.?if????????????????????????????????????B.?until????????????????????????????????????C.?unless????????????????????????????????????D.?when
34.Anderson ma_de_the_ announcement at the conference ????the company would be closing.
A.?that?????????????????????????????????B.?when?????????????????????????????????C.?where?????????????????????????????????D.?whether
35.________caugh_t in the rain unexpectedly, we still enjoyed the journey very much.
A.?When????????????????????????????????B.?As????????????????????????????????C.?Unless????????????????????????????????D.?Although
36.You should__set_a_ goal and see ________ you can achieve it in the coming exam.
A.?which????????????????????????????????B.?what????????????????????????????????C.?whether????????????????????????????????D.?when
37.lt w_as_in__December, 2018 ________ Chairman Xi and President Trump met in Argentina.
A.?when??????????????????????????????????B.?that??????????????????????????????????C.?before??????????????????????????????????D.?since
38.Not _until__the end of the performance ________ the chance to take photos with the respectable actor.
A.?the audience got??????????????????????????????????????????????B.?the audience had got
C.?did the audience get???????????????????????????????????????D.?had the audience got2·1·c·n·j·y
39.Breaking__up_is_ the business of the two lovers, ________ no other person should be involved.
A.?which????????????????????????????????B.?in that????????????????????????????????C.?that????????????????????????????????D.?in which
40.The new t_eacher_ was so well-organized that she began ________ we stopped yesterday so that no point was left out. 【出处：21教育名师】
A.?when????????????????????????????????B.?in which????????????????????????????????C.?how????????????????????????????????D.?where
41.This was ret_urned__because the person ________ this letter was addressed had died three years ago.
A.?to whom?????????????????????????????B.?to which?????????????????????????????C.?which?????????????????????????????D.?whom
42.Is it he _or_you_ ________ in charge of the job and supposed to complete it punctually?
A.?who is?????????????????????????????B.?that is?????????????????????????????C.?who are?????????????????????????????D.?whom are
43.The scientist__does__not study nature ________ it is useful to do so. He studies it because he takes pleasure in it.
A.?until???????????????????????????????B.?because???????????????????????????????C.?though???????????????????????????????D.?unless
44.Although Mai_ler_wa_s not alone in welcoming the flowering of creativity, the authorities hated it, ________ did many passengers. www.21-cn-jy.com
A.?which??????????????????????????????????????B.?as??????????????????????????????????????C.?that??????????????????????????????????????D.?so
45.There are als_o_peop_le who object to fairy stories on the grounds ________ they are not objectively true, and that giants, witches, two-headed dragons etc do not exist. 21*cnjy*com
A.?that???????????????????????????????????B.?what???????????????????????????????????C.?which???????????????????????????????????D.?when
46.Another _study__of 302 volunteers at hospitals in Chicago focused on individual differences in the degree ________ people view "volunteer" as an important social role.
A.?by which?????????????????????????B.?to which?????????????????????????C.?in which?????????????????????????D.?from which
47.I decided__to_do_ a random act of kindness last year. And ________ that the person I would end up helping most would be myself.
A.?I litt_le_kne_w????????????????B.?little did I knew????????????????C.?little did I know????????????????D.?little I knew
48.________the__tower_ building, where you can see the whole city.
A.?Standing on the top of????????????????????????????????????B.?If you climb to
C.?When you reach the top of?????????????????????????????D.?Get to the top of
49.________ you exercise regularly as well, you won't be able to lose weight only by eating less.
A.?Once???????????????????????????????????B.?When???????????????????????????????????C.?If???????????????????????????????????D.?Unless
50.—I spend two weeks in Beijing last year.
—Then you must _have_v_isited the Great Wall during your stay, ________ you?
A.?mustn't???????????????????????????????B.?didn't???????????????????????????????C.?haven't???????????????????????????????D.?hadn't
答案解析部分
一、单选题
1.答案： C
解析：句意：我们已经_è???????°?????????_时代，在这个时代梦想实现的机会最大。句中先行词为an age（一个时代），且先行词在从句中做时间状语，所以关系词用when。 故选C。
【点评】考查定语从句，本题涉及关系副词when引导的限制性定语从句。
2.答案： D
解析：句意：医生_??????????????????_手机号码，以防病人需要医疗援助。A. if only“是......多好”；B. as if“好像，仿佛”；C. even though“即使，尽管”；D. in case“以备，以防，免得”。故选D。
【点评】考查状语从句，区分if only；as if；even though和in case的含义。
3.答案： B
解析：句意：科学家_?·????è?·???????¤?_证据，塑料正在进入人们的体内。从句不缺句子成分，且与evidence指代的是同一事件，用that引导同位语从句。故选B。
【点评】考查名词性从句，本题涉及that引导的同位语从句。
4.答案： A
解析：句意：这位教_???è??????????????_，在他的课堂上，决不应该使用手机。on no account“决不”，否定词放在句首，句子使用部分倒装，should应该，dare敢于，根据句意表示“应该”，故选A。
【点评】考查倒装，掌握on no account的应用。
5.答案： B
解析：句意：他_????????????????¤?_于能说单个单词而不能说完整句子的阶段。句中she can say individual words but not full sentences是一个定语从句，先行词是the stage，关系词在定语从句中作地点状语，用关系副词where，故选B。
【点评】考查定语从句，本题涉及关系副词where引导的限制性定语从句。
6.答案：D
解析：_????????????è?????_到这儿的唯一方式，那就是我们怎么到达的。where哪里；when何时；why为什么；how怎样。这是一个表语从句，by boat表示方式，所以用how，故答案为D。
【点评】考查名词性从句的引导词，弄清从句所缺句子成分，注意语境中的暗示信息。
7.答案：B
解析：句意：如果你_??????????????????_两晚之后你将失去集中注意力、做出计划以及保持活力的能力。once一旦；unless如果不；除非；if如果；when当……时。根据前后句之间的逻辑关系，所以答案为B。
【点评】考查引导条件状语从句的关联词的选择，熟记单词，理解句意，根据语句的逻辑关系判断。
8.答案：B
解析：句意：_è????¨é??é????????_个中国和世界其它地区在同一起跑线上的领域。这是一个定语从句，先行词area指地点，而且从句主系表结构完整，只缺少状语，所以用where引导，故答案为B。
【点评】考查引导定语从句的关系词。掌握定语从句的基本用法，弄清先行词和从句的结构，便可作出准确判断。
9.答案：C
解析：_??????????????????_的支持，我们不能到达现在的地步。此处是表语从句，how怎样；如何；when何时；where……的地方；何地；why为什么；根据句意可知指现在的处境，故答案为C。
【点评】考查名词性从句的引导词，理解句意，根据语境判断，注意句子的逻辑。
10.答案：C
解析：_??????????????????_们不阻止气候变化，世界上的许多动植物会消失。although虽然；while虽然；然而；if如果；until直到。根据句意可知此处表示假设，所以用if引导条件状语从句，故答案为C。
【点评】考查引导状语从句的连词辨析。通读句子，弄清前后句之间的逻辑关系，将连词代入句中，符合逻辑的即为正确答案。
11.答案：D
【解析】【分_???????????????è??_是我爸爸所教给我的——要直面困难心怀希望。这是表语从句，根据teach sb sth可知从句中缺少直接宾语，所以用what引导。how怎样；which哪一个；that无意义也补充当从句的成分，故答案为D。
【点评】考查表语从句中的引导_è???????¨?????????_握名词性从句连词的基本使用规则：连接词that不作成分；连接代词如what在从句中作主语或宾语；连接副词像when、where、how在从句中作状语。
12.答案：A
解析：句意：在_??????????????¨???_环境中，只按一下按钮，一个训练有素的工作人员就会带给你所需要的帮助。句型：祈使句+and/or+表将来的陈述句。所以此处是祈使句部分，所以用动词原形，故答案为A。
【点评】考查并列句的固定句型，牢记基本结构即可。
13.答案：A
解析：句意：她和家人_é??è??????????????_这帮助他们保持健康。这是一个非限制性定语从句，空格处指代前面整个句子，所以用which引导非限制性定语从句，而且which在从句中作主语。who指人；that不引导定语从句；as通常翻译成“正如；就像”，所以此处可以排除，故答案为A。
【点评】考查引导定语从句的关系词，掌握定语从句的基本定义和关系词的基本用法即可判断正确答案。
14.答案：C
解析：句意：无论谁获_???è??è??è?????è??_第一名，金牌将授予他。分析句子可知，宾语从句中缺少主语，故用whoever，表示“任何人，无论谁”。故答案选C。
【点评】考查名词性从句，本题涉及whoever引导的宾语从句的应用。
15.答案：C
解析：句意：凯特已经去_????¤§???????·????_了。我们在大学的时候，我和她的姐姐共住一室。分析句子，句中先行词为Kate，在非限定性定语从句中作名词sister的定语，故用关系代词whose。故选C。
【点评】考查定语从句，本题涉及关系代词whose引导的非限制性定语从句的应用。
16.答案：D
解析：句意：让我们这个_??¨?????????è?????_桃子，这样的话，它们吃起来就变得足够的甜。A. ever since“自那时起”；B. as if“好像”；C. even though“尽管”；D. so that“以便”。从句为目的状语从句，故用so that引导。选D。
【点评】考查状语从句，本题涉及so that引导的目的状语从句的应用。
17.答案：B
解析：句意：只有当汽_è????¨????????????_前停下来我们才看到在乘客位置的莉莉。这里是强调句，强调句型结构为：It is/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。本题强调时间状语only when the car pulled up in front of our house。故选B。
【点评】考查强调句，掌握其结构_???It_is_/ was + 被强调部分(通常是主语、宾语或状语)+ that/ who(当强调主语且主语指人)+ 其他部分。
18.答案： A
解析：我_??????????????????_遇到的小问题可能是伟大发明的灵感．A 考查定语从句．这是一个限制性定语从句．本句中的先行词是problems，在定语从句we meet in our daily lives中做宾语，所以用关系代词that引导．where 和when引导定语从句在从句中做状语．as引导非限制性定语从句．所以答案选A．
【点评】定语从句又称为形容词性_????????????è§????_年高考试题，我们可以发现该语法项目是测试中的热点与难点，解定语从句的题目首先要知道哪一句是主句，哪一句是从句，被修饰的词是谁，从句中的句子成分缺失什么，根据缺失成分的不同从而选出相对应的关系代词或者关系副词，从而选出正确的答案，解题的关键是从句句子的成分分析．
19.答案： C
解析：虽然_é???±???¨??????é??_行，但它们的一些羽毛是为了其他用途．once"一旦"，引导条件状语从句．if"如果"，引导条件状语从句．although"尽管，虽然"，引导让步状语从句．because"因为"，引导原因状语从句．分析可知前后两句话之间是逻辑上的"让步"关系，再结合句子所表达的意思可知答案选C．
【点评】本题考查从属连词的用法．连词的用法辨析，要注意分析主从句之间的逻辑关系，再确定相应的连词，同时注意不同的连词的语义及用法区别．
20.答案： B
解析：Ja_ne????????????_沿着绿树成荫的街道走着，不知道她该往何方．句中she was heading作knowing的宾语，是一个宾语从句；前面的aimlessly表示漫无目的，说明的是不知道目的地，要用where来连接．故选B．
【点评】从属连词是连词的一种，_??¨????????????è??_性从句和状语从句．大致可分为三大类：that（无词义，不做成分）if，whether （表达是否的意义，但不做句子成分）； 连接代词：who，whom，whose，what，which，whatever，whoever，whichever（有词义，在句子中可作主语、表语、宾语）；连接副词：when，where，why，how，how many，how long，how far，however，whenever，wherever （有词义，作从句的状语）．学习时，要注意区分和掌握．
21.答案： B
解析：每年．_???è????????é?????_是最漂亮的，都会获得风筝节的奖品．根据句式可知，考查主语从句．句子缺少主语成分，再结合具体意思，"无论谁做的风筝漂亮都会获奖"，确定whoever．该句式等于Anyone who makes the most beautiful kite will win a…whomever在句子里不能充当主语；whatever是无论什么；whichever是无论哪一个都不符合题意．
【点评】考生在答题时要分析句子结构，来判断所缺成分并结合具体语境灵活使用．
22.答案：C
【解析】【分_????????????:__我们选择这家旅馆，因为它每晚的价格下降到了20美元，是过去价格的一半。“half of_________it used to charge”是$20的同位语，即原来价格的一半是现在的$20；另外，of后跟名词或名词短语构成介宾短语，所以，这里是宾语从句；宾语从句中的charge后面缺少宾语，所以用what来引导宾语从句，并充当宾语从句的宾语，故选C。
【点评】考查宾语从句的引导词。
23.答案： D
解析：句意_???????????????è·?_的交汇点，江苏将为一带一路的建设做出更大的贡献。词组：be located in……位于……，后跟地点名称，即“in+地点名称”在句中作地点状语，所以where代替并引导状语从句。故选D。
【点评】考查引导状语从句的关联词。
24.答案： C
解析：_???????????¨19_63年联合国设立世界粮食计划署，它的目的之一是缓解世界饥饿问题。这是一个定语从句，先行词是the World Food Programme，与purposes构成逻辑上的所属关系，故用whose，因此选C.
【点评】考查定语从句的引导词。
25.答案：C
解析：句意：《远大_????¨?????????????_增强了狄更斯作为一个杰出的小说家的地位，这本书得到了广泛的阅读和高度的赞扬。which引导定语从句，并在从句中作从句的主语，指代先行词Great Expectations，“Great Expectations”是书名，看做单数，所以定语从句的谓语也要使用单数形式；根据“strengthened”可知，“被广泛阅读和得到高度评价”发生在过去，故选C。
【点评】考查主谓一致和动车的时态。
26.答案： B
解析：句意_?????°??¨???é??è??_还有慢跑和游泳被认为是最好的全能运动之一。regard……as……把……看作……。cycling, along with jogging and swimming与regard构成被动关系，由along with连接的多个名词作主语时，谓语与along with前的名词保持一致，cycling是第三人称单数形式，故选B。
【点评】考查主语一致和被动语态。
27.答案： B
解析：句意：_???????¤§?????????_他的工作让他奔走于世界各地，现在在纽约。这是一个定语从句，work与先行词 son是所属关系，故用whose引导定语从句，因此选B。
【点评】考查定语从句的引导词。
28.答案： D
解析：句意：是当我回到我的公寓时我才第一次遇到我的新邻居们。这是一个强调句型It was+被强调部分+that+其他，故选D。
【点评】考查强调句型。
29.答案： C
【解析】【分析_???????????????é??_我是否把书还给图书馆了，我承认我没有。when何时；where哪里；whether是否；what什么。根据后半句可知选C。【来源：21·世纪·教育·网】
【点评】考查宾语从句的引导词。
30.答案： A
解析：句意：乡_??????????????????_宁静与安宁，这是生活在大城市我无法享受到。分析句子结构可知：系动词is后面应为表语从句，动词enjoy缺少宾语；where、why属于连接副词，不能做宾语；that在表语从句中不充当句子成分，what属于连接代词，引导这个表语从句，并在句中做enjoy的宾语。故A项正确。
【点评】考查表语从句。应注意分析句子结构，看从句所缺少的成分，得出正确答案。
31.答案： C
解析：句意：生_????????¨?????????_的，放弃你喜欢的东西毫无意义，除非你能得到更好的东西。because意为因为，引导原因状语从句；so意为因此，引导结果状语从句；unless意为除非，引导条件状语从句；though意为尽管，引导让步状语从句。根据句意可知本句应为条件状语从句，应用unless引导，故C项正确。
【点评】考查状语从句连接词。应注意区分不同类型的状语从句，根据语境选出合适的连接词。
32.答案： C
解析：_?????????è????????_地以拥有美丽的彩色墙壁历史遗址而闻名，墙上画着过去发生的事情。这里是定语从句和倒装句相结合，句子正常的语序是the events of the past are painted on the wall, 所以应该是on which，故选C。
【点评】考查介词+which引导的定语从句，注意倒装结构。www-2-1-cnjy-com
33.答案： C
【解析】【分析_??????????????????_你明天去野餐吗？——如果我的狗不允许陪伴着我的话我不去。原句表达为I will not go to the picnic tomorrow if my dog cannot accompany me.此处If not相当于unless"除非", 主句简化成了not，故选C。
【点评】考查条件状语从句。注意连词if，until，unless跟when的用法。2-1-c-n-j-y
34.答案： A
解析：句_???????????·?????¨_会上宣布公司将关闭。本句是个同位语从句,用that 后面加句子来解释说明announcement 的内容，且that在句中不做成分，故选A。
【点评】考查同位语从句关系词。注意分析句子成分。
35.答案： D
解析：句意：_?°????????¤???°è??_雨淋了，我们仍然享受这次旅行。A. When“当……时”；B. As“因为”；C. Unless“除非”；D. Although“尽管”。根据"we still enjoyed the journey very much."可知此处表示"尽管"，故选D。
【点评】考查状语从句，本题涉及although引导的让步状语从句。
36.答案： C
【解析】【分_????????????:???_应该设定一个目标并看你是否能在即将来临的考试中达到。根据句意可知,此处表示"是否",故选C。
【点评】考查宾语从句，本题涉及whether引导的宾语从句。
37.答案： B
解析：句意：_???è??????????????_特朗普总统是在2018年12月份在阿根廷会面的。分析句子结构可知，此处为强调句型，其基本结构为"it is+被强调部分+that+其余部分"，本句强调的是时间状语in December， 2018，故选B。
【点评】考查强调句型，掌握其结构“it is+被强调部分+that+其余部分”。21教育名师原创作品
38.答案： C
解析：句意：_?????°è?¨?????????_，观众们才有机会和这位受人尊重的演员合影。not until位于句首时，主句用部分倒装，表演结束提示用一般过去时，A、B两项都没有倒装，故选C。
【点评】考查倒装句和时态，本题涉及一般过去时和not until位于句首时，主句用部分倒装的结构。
39.答案： D
解析：句意_??????????????¤???_相爱的人的事，其他人不应该卷入。先行词是前面一句话，“被卷入”用be involved in，in介词提前，关系代词要用which，故选D。
【点评】考查定语从句，本题涉及“介词+which”引导的非限制性定语从句。
40.答案： D
【解析】【分析_????????????è?????_新老师条理非常清楚，她从我们昨天停止的地方开始，没有遗漏要点。这里不是定语从句，因为没有先行词，所以不能用in which；表示昨天我们停止的地方，表地点，要用where，故选D。
【点评】考查状语从句，本题涉及where引导的地点状语从句。21·cn·jy·com
41.答案： A
解析：句意：这封信被退_??????????????????_信人三年前去世了。分析句子可知，the person为先行词，在后面的定语从句中，作介词的宾语，而定语从句中涉及be address to sb“给……写信”。所以介词为to。故选A。
【点评】考查定语从句，本题涉及“介词+关系代词”引导的限制性定语从句。
42.答案： C
解析：句意_?????????è????????_负责这个工作都应该准时完成这个工作？这是强调句的一般疑问句，因为是强调的是人，连接词用that和who都可以，由or连接两个以上主语时，动词和最接近的主语一致，由此可以排除A和B；whom引导定语从句时在从句中作宾语，所以排除D。故选C。
【点评】考查强调句和主谓一致，掌握强调句型的结构。
43.答案： B
解析：句意_???è??????§???????_研究自然不是因为这样做有用。他研究自然是因为他从中会得到快乐。A. until“直到”；B. because“因为”；C. though“尽管”；D. unless“除非”。由下一句提示可知，本句为because引导的原因状语从句。故选B。
【点评】考查状语从句，本题涉及because引导的原因状语从句。21*cnjy*com
44.答案： B
【解析】【分_????????????_???_尽管梅勒并不是唯一一个欢迎创造力的蓬勃发展，但当局痛恨它，许多乘客也一样痛恨它。根据语境可知，本句不是定语从句，因此不能用which，当然也不选that。分析句子可知，空前后都是句子，本空应是一个连词。分析语境可知，是指“......也一样，像......一样”，常用于“as+助动词/情态动词”。而"so"作为“如此”讲，是副词。本句如果用so的话，要用 and so...，即as=and so。如Your son is clever, as is Tom.= Your son is clever, and so is Tom你儿子很聪明，汤姆也一样。故选B。
【点评】考查倒装句，本题涉及as引导的部分倒装。
45.答案： A
解析：句意：也有人_?????????è????????_，理由是它们在客观上不真实，巨人、女巫、双头龙等不存在。分析句子可知，本句空格是同位语从句的连接词。其中"they are not objectively true, and that giants, witches, two-headed dragons etc. do not exist."是对名词the grounds加以解释说明，二者是同位语的关系。分析句子可知，同位语从句中不缺少成分，只是缺少一个引导词。连接词that在名词从句中不做成分，只起引导词的作用，故选A。
【点评】考查名词性从句，本题涉及that引导的同位语从句。
46.答案： B
解析：句_????????????é??é??_对芝加哥医院302名志愿者的研究集中在个体差异上，人们在一定程度上把“志愿者”视为一个重要的社会角色。分析句子可知，本句是一个定语从句，其中先行词是degree，在定语从句中作to的宾语，因此要用to which。故选B。
【点评】考查定语从句，本题涉及“介词+which”引导的限制性定语从句。21·世纪*教育网
47.答案： C
解析：句意：去年我决_???é??????????????_好事。我几乎不知道，最终得到帮助最多的人会是我自己。分析句子可知，后面的句子中的little是半否定词，意为“少到几乎没有”，在英语中否定词或半否定词置于句首，句子要部分倒装，故选C。
【点评】考查倒装，本题涉及否定词或半否定词置于句首的部分倒装。
48.答案： D
解析：句意_?????°è?????é?????_在那里你就能看见整个城市。这里逗号后是句子，已经有连词，所以空格处不能再用连词，故排除BC；又因为逗号后是从句，所以逗号前必须是主句，故选D。
【点评】考查祈使句，掌握祈使句的应用。
49.答案： D
解析：句意_??????????????????_常锻炼，只减少饮食，也不能减轻体重。A. Once“一旦”；B. When“当.....的时候”；C. If“如果”；D. Unless“如果不，除非”。分析句子可知，从句与主句属于条件关系，如果不经常锻炼，就不能减轻体重，故选D。
【点评】考查状语从句，本题涉及unless引导的条件状语从句。
50.答案： B
解析：句意_??????????????????_在北京呆了两周。——那么你在逗留期间一定参观过长城，是吗？题中last summer表示的是一个确定的过去时间，可认定must have visited是对“过去”的推断,用一般过去时反问。此处是反意疑问句，前半句肯定，后半句应该用否定形式，故选B。
【点评】考查情态动词，掌握含有must have done的反义疑问句。
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