【弯道超车】Unit 4 A good read 核心语法之疑问词+动词不定式-2026年春译林版(2024)八年级英语下册精讲精练 (含答案解析)

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【弯道超车】Unit 4 A good read 核心语法之疑问词+动词不定式-2026年春译林版(2024)八年级英语下册精讲精练 (含答案解析)

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/ 让学习更有效 新课备课备考 | 英语学科
/ 让学习更有效 新课备课备考 | 英语学科
2026年春译林版(2024)八年级英语下册核心语法精讲精练
Unit 4 A good read
核心语法:疑问词+动词不定式
一、核心概念
1. 什么是“疑问词+动词不定式”?
结构:疑问词(what, which, who, when, where, how等)+ 动词不定式(to do)
性质:这是一种名词性短语,相当于一个由该疑问词引导的宾语从句
功能:在句子中充当主语、宾语、表语等成分,使表达更简洁
二、结构形式
1. 基本形式:疑问词 + to + 动词原形
疑问词 含义 例句
what 什么 I don't know what to say. 我不知道说什么。
which 哪一个 She can't decide which to choose. 她无法决定选哪个。
who 谁 He didn't know who to ask. 他不知道该问谁。
when 什么时候 Tell me when to start. 告诉我什么时候开始。
where 在哪里 I wonder where to go. 我想知道该去哪里。
how 怎样 Can you show me how to do it 你能教我怎么做吗?
2. 扩展形式:疑问词 + 名词 + to + 动词原形
当需要更具体地说明“哪一个”“多少”时,可以在疑问词后加上名词:
疑问词+名词 含义 例句
which + 名词 哪个…… I don't know which book to read. 我不知道读哪本书。
whose + 名词 谁的…… He wondered whose advice to follow. 他不知道该听从谁的建议。
how many + 名词 多少……(可数) She hasn't decided how many books to buy. 她还没决定买多少本书。
how much + 名词 多少……(不可数) I need to know how much time to spend. 我需要知道花多少时间。
特别提醒:在所有的疑问词中,只有why不能与动词不定式连用。
三、句法功能
“疑问词+动词不定式”结构在句子中可以充当三种成分:
1. 作宾语(最常见)
常接在以下动词之后:tell, show, teach, learn, ask, decide, know, wonder, discuss, remember, forget, find out等。
结构 例句
动词 + 疑问词+to do I don't know what to do.
动词 + 宾语 + 疑问词+to do Mr Wu advised us which to choose.
介词 + 疑问词+to do Marx gave advice on how to learn a foreign language.
教材例句:
"Millie showed us what to do next."(米莉向我们展示了接下来做什么。)
"The student asked the teacher when to hand in their homework."(学生问老师什么时候交作业。)
2. 作主语
当这个结构放在句首时,作主语,谓语动词用单数。
例句 说明
When to leave has not been decided. 什么时候离开还没决定。
Where to go is still a question. 去哪里还是个问题。
3. 作表语
放在系动词(be)后面,说明主语的内容。
例句 说明
The question is which to choose. 问题是选哪个。
My biggest worry is how to tell her the truth. 我最大的担心是如何告诉她真相。
四、与宾语从句的转换
“疑问词+动词不定式”结构相当于一个由该疑问词引导的宾语从句,可以使表达更简洁。
复合句(宾语从句) 简单句(疑问词+to do)
Can you tell me how I can get to the bookshop Can you tell me how to get to the bookshop
I don't know which I should buy. I don't know which to buy.
He forgot when he should meet his friends. He forgot when to meet his friends.
五、易错点与难点辨析
1. “怎么办”怎么翻译?
很多同学会把“怎么办”译成 how to do,这是错误的!
正确 错误 原因
what to do how to do “怎么办”的实际意义是“做些什么”,do是及物动词,后面需要宾语,所以要用代词what。
**只有在表达“怎样做这件事”时才说 how to do it。
2. 不及物动词+介词的问题
当不定式中的动词是不及物动词,或者意义上需要介词时,介词不能省略。
短语 例句
talk to Daniel didn't know who to talk to.
ask for She wondered who to ask for help.
go to They didn't know where to go.
deal with I don't know how to deal with it.
3. 疑问词选择的判断方法
疑问词 选择依据 例句
what 动作缺少“物” I don't know what to do.(做什么)
how 强调“方式、方法” Can you show me how to do it (怎么做)
which 有选择范围 She can't decide which to buy.(买哪个)
where 强调“地点” He doesn't know where to go.(去哪里)
when 强调“时间” Tell me when to start.(何时开始)
六、常见错误提醒
常见错误及纠正:
疑问词选择错误
I don't know how to do.(do后缺少宾语)
I don't know what to do.
why与不定式连用
He explained why to leave.
He explained why he had to leave.(why后接从句)
介词遗漏
Daniel didn't know who to talk.
Daniel didn't know who to talk to.
语序错误
Can you tell me where to go to
Can you tell me where to go
名词位置错误
I can't decide to buy which book.
I can't decide which book to buy.
七、记忆口诀
疑问词+不定式口诀
疑问词加不定式,what/which/who/how/when/where;
只有why不能连,这个规则记心间。
句中功能有三种,主宾表语都能用:
动词后,最常见,tell/show/teach/decide;
介词后,也能跟,on/how to learn记分明。
宾语从句可转换,表达简洁又方便:
how I can → how to,which to buy省时间。
易错点,要牢记,do缺宾语用what;
不及物动词加介词,who to talk to 不能弃。
1.There are so many beautiful bags in the store. I can’t decide _______.
A.to buy which one B.to buy what
C.which one to buy D.what to buy
2.—There’re so many old clothes. I can’t decide ________ with them.
—What about donating them to people in poor areas
A.what to do B.when to do C.how to do D.where to do
3.—I want to read Black Beauty, but I don’t know _________ the book.
—Well, you can try our school library or City Library.
A.where to find B.when to finish C.how to find D.why to read
4.If you don’t know _______ with your old clothes, you can send them to a charity.
A.which to do B.where to do C.what to do D.how to do
5.Boys and girls, attention, please. Now let me tell you ________ to get to the city park.
A.where B.how C.why
6.—Millie, can you give me some advice I don’t know ________.
—Why not try this red shirt and that pair of jeans
A.where to wear B.what to wear C.when to wear D.who to wear
7.Tom is new here. He doesn’t know _________the bookstore.
A.where to get to
B.when to get to
C.how to get to
8.—Excuse me. Could you please tell me _________ my car
—Sure. Just park it right here.
A.how to stop B.where to park C.where to have
9.- Millie, could you give me some advice I don't know_______.
- Why don't you wear this red shirt
A.when to wear B.what to wear
C.how to wear D.where to wear
10.—Excuse me, could you please tell my umbrella
—Sure. Just here.
A.how to put B.why to put
C.when to put D.where to put
11.Daniel taught himself on the computer.
A.how to search for information
B.what to search for information
C.how to searched for information
D.what to searched for information
12.Would you mind __ me how ___ the chemistry problem
A.telling;to solve B.telling;solve
C.to tell;to solve D.to tell;solve
13.I’m sorry. I really don’t know ________ the toy train.
A.to mend B.how should I mend
C.what to mend D.how to mend
14.There’s no difference between the two words. So I can’t decide ________.
A.what to choose B.which to choose C.to choose which D.to choose what
15.—I plan ________ Hong Kong this winter vacation. What about you
—I can’t decide where ________.
A.to visit; to go B.visit; go
C.visiting; going D.to visit; going
16.—I have no idea ________ her the bad news.
—I think tomorrow is the best time.
A.how to tell B.when to tell C.where to tell
17.If you don’t know ________ next, my sister will tell you.
A.how to do B.what to do C.what to do it
18.—I want to go to Qingdao. But I don’t know ______ to go there.
—How about by train
A.what B.where C.when D.how
19.This problem worried her so much that she didn’t know ___________ with it..
A.what she can do B.what she could deal
C.how to do D.how to deal
20.This math problem is too difficult. Can you show me________, George
A.what to work out B.to work it out
C.how to work it out D.how to work out it
21.I want to know ________.
A.which to buy book B.which to book buy
C.which book to buy D.to buy which book
22.—I really don’t know ________ to send the magazines.
—Why not call an express (快递) company
A.how B.which C.when D.what
23.—Could you please tell me ________ the museum
—Sure. Go along this street and turn left at the first crossing.
A.how get to B.how to get to C.how getting to D.how I get
24.—I have a five-day holiday. But I don’t know ________.
—How about Yunnan
A.what to do B.where to go C.when to go D.how to go
25.–We’ll have a four-day holiday in May this year. But I don’t know _______.
–How about Zhuhai We can see the famous bridge.
A.when to go B.where to go C.how to go
26.We’re talking about which film _________.
A.have seen B.seeing C.to see D.see
27.The fireman told us how _______ out and save people from fire.
A.put B.putting C.to put
28.Most experts think it is very important for children to learn ________ the housework.
A.how do B.what to do C.how to do
29.—Have you decided ________ for the coming winter vacation
—Not yet. Maybe I’ll go to visit my grandparents in the countryside.
A.who to go with B.how to go C.when to go D.where to go
30.They didn’t know ________ to deal with the problem, so they asked us for help.
A.where B.what C.how D.which
31.—I have collected some information online. Would you please tell me _______ to do next
—Make a chart and it will help you understand better.
A.what B.how C.when D.where
32.—Have you solved your problem
—No, I really don’t know______
A.how to do with B.what to do C.what can I do
33.She doesn't know ________ in the meeting.
A.what can she say B.what she can speak C.what to say D.how to say
34.Tom wants to know ________ next.
A.where to do B.where to go C.what to do it D.how to do
35.We don’t know ______ with the rubbish and it pollutes our land and sea.
A.how do it B.how to do C.what do it D.what to do
36.When you go to a foreign country, you should know ________ hello to others.
A.what to say B.how to say
C.which to say D.who to say
37.—I’m crazy about the blind boxes!
—Me too. You never know ________ to get before opening them.
A.when B.where C.what D.who
38.—I’ll have a ten-day holiday, but I don’t know ______.
—How about Paris
A.where to go B.how to go C.what to go
39.Can you tell me ________ the problem of stress
A.what I should deal with B.how I should do with
C.what to deal with D.how to deal with
40.Can you tell me how ________ to Bob’s birthday party
A.get B.getting C.to get
41.— Miss Green, could you give me some advice on ______ to learn English well
— Well, practice makes perfect.
A.when B.how C.why
42.—Have you decided when ________
—Yes, tomorrow morning.
A.will you leave B.are you leaving C.to leave D.you leave
43.It’s important for us to know _______ all the subjects.
A.how to study B.when to study C.which to study D.what to study
44.—I don’t know where to go this summer vacation.
—Why not ________ visiting Qingdao There are many places of interest there.
A.regard B.consider C.wonder D.discuss
45.—I don’t know ________ a banana milk shake.
—No worrying about it. I’ll teach you.
A.what to do B.when to make C.how to make D.why to make
46.I haven’t decided ________. Maybe I shall discuss with my co-workers first.
A.to take which train B.which train to take C.which to take train D.take to which train
47.___________ to start is not important. It’s never too late to start.
A.How B.When C.Where D.What
48.Can you tell me how ________ there
A.get B.to get C.getting D.to getting
49.—Are you clear ________ to use a computer to draw
—Yes. I have learned it with the help of my teacher.
A.what B.how C.when D.which
50.Nobody taught the old lady how ________ WeChat. She learned it all by herself.
A.to use B.use C.using D.uses
51.Let us discuss _______.
A.how to do it B.what to do it C.how to do
52.There is no difference between the two coats. And I can’t decide ________.
A.what to choose B.to choose what C.which to choose D.to choose which
53.Actually, this is not ________ I’m interested in. I want to know how ________ healthily in my daily life.
A.what; can eat B.that; to eat C.what; to eat
54.In this hotel, we have two rooms to live in, but we can’t decide ______.
A.chose which one B.to choose which one
C.which one to choose D.which one to chose
55.—Can you help me
—Of course.
—Please show me __________ to send an e-mail, John. It’s the first time for me to do it.
A.what B.how C.when D.where
56.Have you decided ________
A.to buy which book B.which book to buy C.which to buy book
57.—It’s impolite ________ the woman to drop litter at the museum.
—She really should learn ________ in public so that she can set a good example for her children.
A.of; what to behave B.for; how to behave C.of; how to behave D.for; what to use
58.Do you know _______
A.how read this word B.how to read this word
C.to how read this word D.how reading this word
59.—I have collected some information on the Internet. Would you tell me________next
—Make a chart.
A.what to do B.what to do it
C.how to do D.when to do it
60.—I don’t know ________ for Lily’s birthday party.
—You can ask Jack for help. He knows a lot about fashion.
A.where to go B.when to go C.what to wear D.how to get
61.I don’t know how ________. Can you help me
A.to do B.do it C.doing D.to do it
62.There are ________ interesting books in our library that I don’t know ________ first.
A.so many; what to read B.so much; which to read
C.so many; which to read D.so much; what to read
63.There are millions of new information on the Internet every day. The thing that matters is ________ to choose useful information.
A.what B.how C.when
64.I really don’t know ________ with the waste computers. Could you give me some advice
A.what to deal B.how to deal C.how to do
65.Would you show me ________ an e-mail, please
A.how to send B.how can I send C.what to send
66.—Mr. Wu has recommended many books. Have you decided ________ first
—Yes. Harry Potter.
A.how to read B.which to read
C.when to read D.where to read
67.—I don’t know how to draw.
—Don’t worry. I’ll show you ________.
A.what to do B.what to do it C.how to do D.how to do it
68.一Many students don’t know _____ stress and become worried.
一I think they should communicate more with their parents.
A.how deal with B.how dealing with
C.how to deal with D.how to dealing with
69.—Excuse me, do you know ________ the concert tickets
—Sure. At the box office near the front door.
A.how to get B.when to get C.what to get D.where to get
70.He showed me how ________ the new mobile phone.
A.to use B.using C.use D.to used
71.I don’t know ________ to do at the party. I can’t do anything to help.
A.how B.when C.what
72.People were very scared and didn’t know ________.
A.what to go B.what to do C.where to do D.what to do it
73.We plan to go to Hangzhou during the May Day holiday, but we haven’t decided ________.
A.where to go B.how to go there C.when to go there D.who to go there
74.-- My brother bought me an iPhone 5, but I don’t know __________. Can you help me
-- Let’s read the instructions.
A.what to use B.how to use
C.what to use it D.how to use it
75.Why not _______ your teacher for advice when you don’t know _______ the problem.
A.to ask; how to deal with B.ask; what to do with
C.ask; what to deal with D.to ask; how to do with
76.No one tells us ________, so we need your help.
A.how we should do B.how to do it C.what should we do D.what to do it
77.—I don’t like the way to have classes online, could you tell me when ________ to our school for studying
—You teacher will call you up when ________ information.
A.return, having B.to return, to have C.to return, having
78.I didn’t know ________ to do things ________ myself in the past.
A.how; from B.what; for C.how; for D.what; with
79.—My family will go on a trip to Wuhan this winter, but we haven’t decided ________.
—Why not take the high-speed railway
A.when to leave B.how to get there C.which hotel to choose D.how long to stay there
80. --- I really don’t know how ________ this problem.
--- Let me see.
A.to do with B.to deal with C.doing with D.dealing with
81.—You should be careful when ________.
—Thanks, I will. I know when ________ to have a rest.
A.driving; to stop B.driving; stopping C.to drive; stopping D.to drive; to stop
82.—Excuse me. Could you please tell me ________ my car
—Sure. Park it right here. I’ll help you.
A.where park B.where to park C.to park where
83.—Before the exams I often feel quite worried and I don’t know __________ for help.
—Amy, your best friend.
A.what to ask B.when to ask
C.who to ask D.how to ask
84.--- Such beautiful flowers! I can’t decide _______ for my mum.
--- For Mother’s Day, it can’t be better to take some carnations (康乃馨).
A.to choose which B.how to choose
C.which to choose D.when to choose
85.—What does your brother often do on weekends, Mary
—He often volunteers in an animal hospital to learn ________ animals.
A.what to care for B.how can we care for C.how to care for D.what we can care for
86.— Look, this is my new mobile phone.
— It’s very nice. Could you tell me ________
A.where to buy B.where to buy it C.where will buy it D.where I will buy
87.Can you tell me ______ learn a foreign language well.
A.what to B.how to C.what I can D.how can I
88.Mary didn’t know who __________ the problem she met with at that time.
A.to talk about B.will talk to about
C.to talk to about D.will to talk
89.I really don’t know _______
A.how to do B.what to do it
C.how to do it D.which to do it
90.I want to buy a digital camera online. Can you show me ______ the Internet
A.search B.to search C.how to search D.what to search
91.Sometimes I feel bored and don’t know ______ to do.
A.how B.why C.what D.where
92.—I haven’t decided ________ to spend my holiday.
—What about places of natural beauty
A.where to go B.when to leave C.what to do D.how to go
93.—Would you please advise me __________ —I’m glad to.
A.to wear what clothes B.what clothes to wear
C.what clothes wear D.I wear what clothes
94.My students write to me and ask me ________ their problems and I give them my advice and tell them ________.
A.how to solve; what to do
B.how can solve; how to do
C.how to solve; how to do
D.how can solve; what to do
95.Do you know ________ to do it
A.how B.what C.which D.if
96.The sign tells us something. So it’s sign.
A.how to do…a instruction B.how to do…an instruction
C.what to do…a direction D.what to do… an information
97.My pen pal from America is coming to visit me. I’m thinking about __________.
A.what present should be give him
B.how to give him a surprise
C.where will we have a big meal
D.whether I planned a trip for him
98.I don’t know ________. Could you give me some advice
A.how to do B.what to do C.which to do
99.Look, the students are discussing _______.
A.about which super star to vote
B.which super star to vote for
C.about to vote for which super star
D.to vote for which super star
100.The boy should ________ get on well with ________.
A.be taught how to, others B.be known, another C.teach how they, another D.taught to, the other
/ 让学习更有效 新课备课备考 | 英语学科
/ 让学习更有效 新课备课备考 | 英语学科
21世纪教育网(www.21cnjy.com)
21世纪教育网(www.21cnjy.com)
参考答案及试题解析
1.C
【解析】句意:商店里有很多漂亮的袋子。我不能决定买哪一个。
考查疑问词+动词不定式。which one to buy买哪一个;what to buy买什么。分子句子,此处应为“疑问词+动词不定式”结构,选项AB不符合语法结构,根据“There are so many beautiful bags in the store.”可知是不能决定买哪一个,故选C。
2.A
【解析】句意:——有这么多旧衣服。我无法决定怎么处理它们。——把它们捐给贫困地区的人们怎么样?
考查疑问词+动词不定式。what to do做什么,what作do的宾语;when to do什么时候做,when作do的时间状语;how to do怎么做,how作do的方式状语;where to do在哪里做,where作do的地点状语。根据“What about donating them to people in poor areas ”可知,此处是问怎么处理这些旧衣服,do后缺少宾语,所以用what to do,表示“做什么”。故选A。
3.A
【解析】句意:——我想读《黑美人》,但我不知道去哪找这本书。——试一试咱们学校图书馆或者城市图书馆。
考查疑问词+不定式结构。where to find去哪找;when to finish什么时候完成;how to find怎样找;why to read为什么读。结合答句“you can try our school library or City Library.”可知,此处表达的意思是“在哪里能找到”,故选A。
4.C
【解析】句意:如果你不知道如何处理你的旧衣服,你可以把它们送给慈善机构。
考查疑问词+动词不定式。which to do形式错误,do后面缺少宾语;where to do形式错误,do后面缺少宾语;what to do with...是固定搭配,意为“如何处理……”;how to do形式错误,do后面缺少宾语。根据句意和句子结构可知,此处是在询问如何处理旧衣服,所以应该用what to do with。故选C。
5.B
【解析】句意:同学们,请注意。现在让我告诉你们如何去城市公园。
考查疑问词。 where在哪里;how如何;why为什么。根据“...to get to the city park.”可知,是指如何去城市公园。故选B。
6.B
【解析】句意:——米莉,你能给我一些建议吗?我不知道穿什么。——为什么不试试这件红色的衬衫和那条牛仔裤呢?
考查疑问词+不定式。where to wear在哪里穿;what to wear穿什么;when to wear什么时候穿;who to wear穿谁的衣服。根据“Why not try this red shirt and that pair of jeans ”可知,此处是询问穿什么衣服,所以应该用what to wear。故选B。
7.C
【解析】试题分析:句意:汤姆在这是新来的。他不知道怎样到达书店。空格后有the bookstore表示地点,所以不能用where,when什么时间;how怎样。根据句意,故选C。
考点:考查疑问词加不定式。
8.B
【解析】句意:——打扰一下。你能告诉我在哪里停车吗?——当然可以。就停在这里吧。
考查动词不定式。how怎么样;where哪里;stop停止;park停车;have有。根据回答“Just park it right here.”可知表达的是停车地点,所以用where to park“停在哪里”作问句中tell的宾语。故选B。
9.B
【解析】句意:米勒,你能给我些建议吗?我不知道穿什么?为什么不穿红色的衬衣吗?
A.when to wear什么时候穿; B.what to wear穿什么;
C.how to wear怎样穿; D.where to wear在那里穿。根据答语知在询问穿什么,故选B
10.D
【解析】句意:——对不起,你能告诉我把伞放在哪里吗?——当然。就在这里。
考查疑问词+不定式的用法。how to put如何放;why to put为什么放;when to put何时放;where to put放在哪里。根据答语可知询问的是地点。故选D。
11.A
【解析】试题分析:句意:丹尼尔自学了如何在电脑上搜索信息。本题考查的是特殊疑问+to do这种结构,结合句意,故选A
考点:考查疑问词+不定式。
12.A
【解析】试题分析: 句意:你介意告诉我如何解化学题吗?mind doing介意做某事,solve解决;how to do做宾语,故选A
考点:考查非谓语动词。
13.D
【解析】句意:我很抱歉。我真的不知道怎样修理玩具火车。
考查疑问词+不定式和宾语从句语序。本句为宾语从句,需用陈述句语序,故排除选项B。根据“I really don’t know ... the toy train.”和句意可知,此处表达“怎么修理”,“怎么做”应为how+to+动词原形。故选D。
14.B
【解析】句意:这两个单词没有什么区别。所以我不能决定选哪个。
考查特殊疑问词 + 动词不定式。根据“no difference”可知,无法决定选哪一个。“特殊疑问词 + 动词不定式which to choose”作decide的宾语成分。故选B。
15.A
【解析】句意:——这个寒假我计划去香港。你呢?——我没有决定我要去哪里。
考查非谓语动词。to visit参观,to go去,动词不定式;visit参观,go去,动词原形;visiting参观,going去;现在分词或动名词。根据“I plan…Hong Kong this winter vacation.”可知,动词短语plan to do sth.表示“计划做某事”,plan意为“计划”,后常跟动词不定式作宾语;根据“I can’t decide where …”可知,decide后常跟疑问词+动词不定式作宾语。故选A。
16.B
【解析】句意:——我不知道什么时候告诉她这个坏消息。——我认为明天是最好的时间。
考查特殊疑问词。how 怎样,提问方式方法;when 何时,提问时间;where 何地,提问地点。根据回答“I think tomorrow is the best time.”可知,对方不知道告知坏消息的时间,故选B。
17.B
【解析】句意:如果你不知道接下来去做什么,我姐姐会告诉你。
考查疑问词+动词不定式。how to do表达错误,缺少宾语;what to do去做什么;what to do it表达错误。根据“my sister will tell you.”并结合选项可知,空白处是“去做什么”。故选B。
18.D
【解析】句意:——我想去青岛。但是我不知道怎么去那里。——坐火车怎么样?
考查疑问词+不定式作宾语和疑问副词辨析。what什么;where在哪里;when什么时候;how如何。根据答语“How about by train ”可知,此处应该表达不知道怎么去那里,应该填入how,后跟不定式作宾语。故选D。
19.D
【解析】试题分析:句意:这个问题烦忧着她,她不知道怎样处理。how to do with it 怎样处理。所以选C。
考点:考查特殊疑问词。
20.C
【解析】句意:这道数学题太难了,乔治,你能给我展示下如何解这道题吗?
考查“疑问词+不定式结构”和动词短语。work out是动词+副词短语,故代词作宾语时,要放在动词和副词之间,这里是疑问词加不定式在句中作宾语,根据题意是指“如何解答出来”,故选C。
21.C
【解析】句意:我想知道买哪本书。
考查疑问词+动词不定式结构。此处是“疑问词+动词不定式”作动词know的宾语,C选项“which book to buy”符合。故选C。
22.A
【解析】句意:——我真的不知道如何寄这些杂志。——为什么不打电话给一家快递公司?
考查疑问词辨析。how如何;which哪一个;when什么时候;what什么。根据回答“Why not call an express company ”可知此处是在询问寄杂志的方式或方法,因此应使用表示方式的疑问词how。故选A。
23.B
【解析】句意:——你能告诉我如何去博物馆吗?——当然。沿着这条街走,在第一个十字路口向左转。
考查疑问词+不定式结构。分析句子结构并结合选项可知,此处为“疑问词+不定式”结构,即how to get to the museum,在句中作“tell”的直接宾语。故选B。
24.B
【解析】句意:——我有五天的假期。但我不知道该去哪里。——云南怎么样?
考查疑问词辨析。根据“How about Yunnan ”可知,不知去哪里度假,where to go为“疑问词+动词不定式”,表示“去哪里”。故选B。
25.B
【解析】句意:——今年五月我们有四天的假期。但我不知道该去哪里。——珠海怎么样?我们可以看到那座著名的桥。
考查疑问词与动词不定式连用。when to go什么时候去,问时间;where to go去哪里,问地点;how to go如何去,问方式。根据下句How about Zhuhai 可知,问地点,应用where,故选B。.
26.C
【解析】句意:我们在讨论要看哪部电影。
考查非谓语动词。分析句子结构可知此处为“疑问词+动词不定式”的结构。故选C。
27.C
【解析】句意:消防员告诉我们如何灭火并从火灾中救人。
考查动词不定式用法。put放,是动词原形;putting是put的现在分词形式;to put是put的动词不定式形式。分析句子结构可知,此处是“疑问词+动词不定式”结构作宾语,表示“如何灭火”,所以应该用to put。故选C。
28.C
【解析】句意:大多数专家认为,对于孩子们来说,学习如何做家务非常重要。
考查疑问词+动词不定式的用法。how do结构错误;what to do做什么;how to do如何做,根据“learn ... the housework”可知,此处表示学习如何做家务。故选C。
29.D
【解析】句意:——你决定好即将到来的寒假要去哪里了吗?——还没有。也许我会去乡下看望我的祖父母。
考查特殊疑问词+动词不定式。who to go with和谁一起去;how to go怎么去;when to go什么时候去;where to go去哪里。根据答语“Maybe I’ll go to visit my grandparents in the countryside.”可知,此处是在询问即将到来的寒假要去哪里,所以应该用where to go。故选D。
30.C
【解析】句意:他们不知道如何处理这个问题,所以向我们求助。
考查疑问词。where哪里;what什么;how怎样;which哪一个。deal with表示“处理”,与how连用,表示如何处理问题,故选C。
31.A
【解析】句意:我在网上收集了一些信息。你能告诉我下一步该做什么吗?——做一个图表,它会帮助你更好地理解。
考查疑问词。what什么;how怎样;when什么时候;where哪里。根据“Make a chart and it will help you understand better.”可知,上句是询问下一步应该做什么。故选A。
32.B
【解析】考查疑问词+不定式作宾语。句意:你解决了你的问题了吗?没有,我真的不知道怎么做。所以选B,A项how不能与do with连用。C项应用陈述句语序。
33.C
【解析】句意:她不知道在会议上说什么。
考查特殊疑问词及动词的用法。say说,强调说的内容;speak讲,接表示语言的名词;what什么;how怎样。句子表达“不知道说什么”,强调的是说的内容,疑问词用“what”,动词用“say”,B选项“speak”使用错误。动词“know”后面是宾语从句,是陈述句的语序,即“疑问词+主语+谓语动词”的结构。A选项语序错误。主句的主语“she”和从句主语是同一个人,可用“疑问词+动词不定式”的结构。表示“说什么”用“what to say”表达,D选项疑问词“how”使用错误。故选C。
34.B
【解析】句意:汤姆想知道下一步去哪里。
考查特殊疑问词+to do。where to do错误格式;where to go去哪里;what to do it错误格式,多出it;how to do怎么做,缺少do的宾语。故选B。
35.D
【解析】句意:我们不知道如何处理垃圾,它污染了我们的土地和海洋。
考查疑问词+to do。how to do疑问词与动词不定式的搭配,应该加it在后,其中how是副词作状语,it指代前面提过的某件事,do是及物动词,没有it作宾语表达就不完整。what to do疑问词与动词不定式的搭配,其中what就是do的宾语,所以do后面不能再加it作宾语了。根据句中没有宾语,故选D。
【点睛】how to do和what to do的区别为:使用场合不同、含义不同、用法不同。
一、使用场合不同
1.how to do
解析:可以引导从句或动词不定式,在句中作宾语,引导的从句在句中还可作定语,how表示某种方式时,可放在表示方式的名词后面,how意为“情况如何”时,指询问某人的近况或身体状况如何。
2.what to do
解析:做关系代词时,其含意是“所……的事(物)”,可用来引导主语从句,表语从句,宾语从句或同位语从句,当引导主语从句,其所指的名词必定是单数,主语是单数时,谓语动词一般是单数,但有时因谓语动词之后有复数名词,谓语动词也可用复数。
二、含义不同
1.how to do释义:怎么做
2.what to do释义:做什么,怎么办,怎么办。
三、用法不同
1.how to do
用法:疑问词与动词不定式的搭配,应该加it在后,其中how是副词作状语,it指代前面提过的某件事,do是及物动词,没有it作宾语表达就不完整。
例句:Can you show me how to do it.译文:你能教我如何做吗?
2.what to do
用法:疑问词与动词不定式的搭配,其中what就是do的宾语,所以do后面不能再加it作宾语了。
例句:I don't know what to do next.译文:我不知道接着该干什么了。
36.B
【解析】句意:当你去国外时,你应该知道如何向别人打招呼。
考查疑问词+不定式结构。what to say说什么;how to say怎么说;which to say说哪个;who to say说给谁。say hello to sb.“向某人问好”,hello已作动词say的宾语,所以此处用疑问副词how作状语。故选B。
37.C
【解析】句意:—— 我超爱盲盒!—— 我也是。打开之前永远不知道会拿到什么。
考查疑问词加不定式结构。when什么时候;where(在)哪里;what什么;who谁。根据“ You never know...to get”可知,指的是不知道能从盲盒里拿到什么,what作get的宾语。故选C。
38.A
【解析】句意:——我将有一个十天的假期,但我不知道去哪里。——巴黎怎么样?
考查疑问词+不定式的用法。where to go去哪里;how to go怎么去;what to go去什么,表达不自然。根据答语“How about Paris ”可知,建议去巴黎,此处是建议地点,因此空处应填入询问地点的表达。故选A。
39.D
【解析】试题分析:句意:你能告诉我我该如何处理压力问题吗?本句考查疑问词加不定式做宾语;Deal with表示“处理”,多于特殊疑问词How连用;而do with意为“处理”,但它常与How连用;故选D。
考点:考查疑问词加不定式的用法。
40.C
【解析】句意:你能告诉我怎样去鲍勃的生日聚会吗?
考查非谓语动词。分析句子结构可知,此处为“疑问词+动词不定式”结构作tell的宾语。故选C。
41.B
【解析】句意:——格林小姐,你能给我一些关于怎样学好英语的建议么?——好的,熟能生巧。
考查疑问副词。when什么时间;how怎样;why为什么。介词“on”后面是“疑问词+动词不定式”的结构。根据“practice makes perfect”可知表达“怎样学好英语”,用“how”。故选B。
42.C
【解析】句意:——你决定什么时候离开了吗?——是的,明天早上。
考查非谓语动词。宾语从句应用陈述语序,故排除A项和B项;此处指将来发生的事情,故排除D项;when to leave为“疑问词+不定式”结构,作宾语。故选C。
43.A
【解析】句意:对于我们来说知道如何学习所有课程是重要的。此题考查疑问副词加不定式的用法。all the subjects是作study的宾语,所以不能用what或which引导;根据句意可推断出说的是学习的方式,故应用how来引导;其次关键词know后应该跟不定式作宾语,两者结合,我们可以知道应该用疑问副词+to+动词原形的结构来完成,所以用how to study,故选A。
44.B
【解析】句意:——我不知道这个暑假去哪里。——为什么不考虑去青岛呢?那里有很多名胜古迹。
考查动词辨析。regard看待;consider考虑;wonder想知道;discuss讨论。根据“Why not...”这一建议句型,后接动词原形,且宾语为“visiting Qingdao”,结合语境,此处应表示“考虑去青岛”。consider doing sth. 意为“考虑做某事”,符合句意。故选B。
45.C
【解析】句意:——我不知道怎么做香蕉奶昔。——别担心。我会教你的。
考查特殊疑问词。根据“ I’ll teach you.”可知不知道怎么做香蕉奶昔,用how引导。故选C。
46.B
【解析】句意:我还没决定坐哪趟车。也许我应该先和同事商量一下。
考查特殊疑问词+动词不定式。根据“特殊疑问词+动词不定式”可知,选项A、D不符合句意,train要紧跟which,表示“哪辆火车”,故选B。
47.B
【解析】句意:什么时候开始并不重要。开始永远不会太迟。
考查疑问词辨析。how如何;when什么时候;where哪里;what什么。根据“to start is not important. It’s never too late to start”可知只要开始永远不会太迟,所以什么时候开始不重要。故选B。
48.B
【解析】句意:你能告诉我怎么到那儿吗?
考查“疑问词+不定式”结构。句子中“how”是疑问词,此处需要构成“疑问词+不定式”的固定结构,在句中作“tell me”的宾语,how to do sth意为“如何做某事”。因此,正确答案是to get。故选B。
49.B
【解析】句意:——你知道怎么用电脑画画吗?——知道,我是在老师的帮助下学会的。
考查疑问词辨析。what什么;how怎么样;when何时;which哪一个。根据“I have learned it with the help of my teacher.”可知,我在老师的帮助下,学会了如何用电脑画画,此处用how提问如何做某事。故选B。
50.A
【解析】句意:没人教这位老太太如何使用微信。她全是自学的。
考查“疑问词+不定式”结构。根据句子结构,动词“taught”后接“疑问词+不定式”作宾语,表示“如何做某事”,应用“how to use”。故选A。
51.A
【解析】句意:让我们讨论一下如何做这件事。
考查疑问词+动词不定式结构。what后接动词不定式,do后不需要接it;how后接动词不定式,do后接it作宾语,故选A。
52.C
【解析】句意:这两件外套没有区别。我无法决定选择哪一件。
考查疑问词+不定式。what什么;which哪一个。根据“between the two coats”可知,此处指无法决定在两件外套中选择哪一件,应用疑问词which。此处是“疑问词+动词不定式”,即which to choose,作动词decide的宾语。故选C。
53.C
【解析】句意:事实上,这不是我感兴趣的。我想知道如何在日常生活中吃得健康。
考查表语从句和非谓语动词。根据“this is not...I’m interested in”可知,第一空应填一连词引导表语从句,在从句中作in的宾语,应用what;根据“I want to know how...healthily in my daily life.”可知,第二空为“how+不定式”作宾语。故选C。
54.C
【解析】试题分析:句意:在这个旅店,我们有两个房间可以居住,但是我们不能决定选择哪个。特殊疑问词+to do。结合句意,故选C
考点:考查非谓语动词的用法。
55.B
【解析】句意:——你能帮助我吗?——当然。——请教我怎样发电子邮件,约翰。这是我第一次做这件事。
考查疑问词。what什么;how怎样、如何;when什么时候;where在哪里。根据It’s the first time for me to do it. 这是我第一次做这件事。又根据空格前面的词语是show me,因此可知这句话的意思是“请教我怎样发电子邮件,约翰。”how意思是“怎样、如何”,表示方式,故答案选B。
56.B
【解析】句意:你决定买哪本书了吗?
考查“疑问词+不定式”的结构。通过对句子结构的分析可知,设空处需填入宾语。结合选项可知,此处应是“疑问词+不定式”的结构作宾语,疑问词Which后要跟名词在加动词不定式,故选B。
57.C
【解析】句意:——这位女士在博物馆乱扔垃圾是不礼貌的。——她真的应该学会如何在公共场合表现,以便为她的孩子树立一个好榜样。
考查介词辨析和疑问词+动词不定式。of关于;for为了。第一空根据“It’s impolite…the woman to drop litter at the museum.”可知,此处为固定句型it’s impolite of sb. to do sth.,意为“某人做某事是不礼貌的”,故用介词of表示;第二空根据“She really should learn…in public so that she can set a good example for her children.”可知,固定搭配learn how to do sth.意为“学会如何做某事”,故用how to behave表示。故选C。
58.B
【解析】本题考查的是how to do sth,表示怎样做某事,故选答案为B
59.A
【解析】句意:——我在网上收集了一些资料。你能告诉我下一步做什么吗?——制作图表。
考查动词不定式短语。what to do做什么;what to do it 和 how to do都不符合英语表达习惯; when to do it何时做它。结合答语,故选A。
60.C
【解析】句意:——我不知道莉莉的生日派对该穿什么。——你可以找杰克帮忙。他很懂时尚。
考查特殊疑问词。where to go去哪里;when to go何时去;what to wear穿什么;how to get怎么到达。根据“You can ask Jack for help. He knows a lot about fashion.”可以推断,第一句话是在表达对穿着的担忧。故选C。
61.D
【解析】句意:我不知道该怎么做。你能帮我吗?
考查疑问词+不定式。根据“I don’t know how”可知是不知道怎么做,how to do it如何做它,固定短语。故选D。
62.C
【解析】句意:我们图书馆有那么多有趣的书,我不知道该先读哪一本。
考查不定代词以及“疑问词+动词不定式”的用法。so many这么多,修饰可数名词复数;so much这么多,修饰不可数名词;what to read读什么;which to read读哪一本。根据“There are...interesting books in our library that I don’t know...first.”可知,本句为so...that引导的结果状语从句,表 示“如此……以至于……”,books为可数名词复数形式,此处应用many修饰;又由“There are...interesting books in our library that I don’t know...first.”可知,此处表示不知道从这么多书中先选哪一本读,用 “疑问词+动词不定式”结构“which to read”,表示“读哪一本”。故选C。
63.B
【解析】句意:因特网上每天有数百万的新信息。重要的是如何选择有用的信息。
考查特殊疑问词。what什么;how怎样;when何时。根据空后的“to choose useful information”可知,此处是“特殊疑问词+动词不定式”作表语,后面动词有宾语,排除选项A;根据“There are millions of new information on the Internet every day. ”可知,此处是说如何选择在很多信息中选择有用的信息。故选B。
64.B
【解析】句意:我真的不知道如何处理这些废旧电脑。你能给我一些建议吗?
考查特殊疑问词和动词短语。do with=deal with“处理”,do with和what连用,deal with和how连用。故选B。
65.A
【解析】句意:你能给我展示一下怎么发电子邮件吗?
考查特殊疑问词+不定式作宾语。根据句子结构可知这里用到特殊疑问词+to do作宾语,结合“show me ... an e-mai”可知这里表示“怎么发邮件”,send“发送”,所以是how to send。故选A。
66.B
【解析】句意:——吴先生推荐了许多书。你决定先读哪个了吗?——是的。《哈利·波特》。
考查疑问词辨析。how如何;which哪一个;when什么时候;where在哪里。根据“Harry Potter.”可知问决定读哪本书了么,用which to read作宾语。故选B。
67.D
【解析】句意:——我不知道如何画画。——别担心。我来告诉你怎么做。
考查及物动词用法。do是及物动词,可用what to do或how to do it。结合“I don’t know how to draw.”可知用how to do it。故选D。
68.C
【解析】试题分析:句意:-许多学生不知道怎样处理压力而变得焦虑起来。-我想他们应该多和父母交流。作宾语,用疑问词+to do的不定式短语。故选C。
考点:考查疑问词加不定式作宾语。
69.D
【解析】句意:——打扰一下,你知道在哪里能买到音乐会门票吗? ——当然知道。在前门附近的售票处。
考查疑问词辨析。how to get如何得到;when to get何时得到;what to get得到什么;where to get哪里购买。根据“At the box office near the front door.”明确指出了地点,因此问句是对“在哪里能买到音乐会门票”进行提问。故选D。
70.A
【解析】句意:他教我如何使用这部新手机。
考查“特殊疑问词+动词不定式”结构。how to do sth.:如何做某事,怎样做某事,相当于名词,在句子中做主语或宾语;故选A。
71.C
【解析】句意:我不知道在聚会上该做什么。我帮不上什么忙。
考查疑问词辨析。how如何;when何时;what什么。根据“I don’t know...to do at the party. I can’t do anything to help.”可知,不知道该做什么,故选C。
72.B
【解析】句意:人们非常恐慌,不知道该做什么。
考查特殊疑问词和不定式的用法。what to go搭配错误;what to do做什么;where to do缺少宾语;what to do it多了宾语it。根据“People were very scared”可知,人们在恐慌的环境中不知该做什么,“what to do” 是 “疑问词 + 不定式” 结构,在句中作宾语,意为 “做什么”。故选B。
73.B
【解析】句意:我们计划在五一假期期间去杭州,但是我们还没有决定如何去那里。
考查疑问句+不定式。where在哪里;how怎样;when什么时候;who谁。根据“We plan to go to Hangzhou during the May Day holiday”可知去哪里且什么时候去都已告知,故排除A和C;根据“We plan to...”可知去的人已告知。故选B。
74.D
【解析】试题分析:本句的意思应该是“我不知道如何用它。”AB选项用what明显不对,因为用的就是iPhone5;另外,当用How时后面的动词应该有宾语。所以本题选D。
考点:本题考查特殊疑问词与动词不定式的用法。
点评:本类题目需要解决两个问题:一个是根据意思确定特殊疑问词;一个是当what to do时,其后是不能再加宾语的,因为do的宾语就是what;而当用how to do it时,这里的it必须加上,其他特殊疑问词也应该如此。
75.B
【解析】句意:当你不知道如何处理这个问题时,为什么不向你的老师请教呢?
考查特殊疑问句和疑问词+不定式结构。why not do sth“为什么不做某事呢”,可排除AD选项;do with/deal with“处理”,do with与what连用,deal with与how连用。故选B。
76.B
【解析】句意:没有人告诉我们怎么做,所以我们需要你的帮助。
考查不定式和宾语从句。how we should do错误形式;how to do it如何去做;what should we do我们应该做什么;what to do it错误形式。分析句子结构可知,空处是“tells”的宾语从句,宾语从句要用陈述句语序,根据“ so we need your help”可知,我们需要帮助,可推知没有人告诉我们该怎么做。故选B。
77.C
【解析】句意:——我不喜欢网上上课的方式,你能告诉我什么时候回学校学习吗?——有消息时你的老师会打电话给你。
考查非谓语动词。分析句子可知,第一个句子中的when意为“什么时候”,是结构“疑问词+动词不定式”;第二个句子的when意为“当”,此处从句省略了主语和be动词,用现在分词。故选C。
78.C
【解析】句意:过去我不知道如何为自己做事。
考查疑问词加不定式短语及介词短语。how怎样;what什么;本题第一空是“特殊疑问词+to do”结构,本题已经有宾语things,所以用how;第二空用for oneself表示“某人独自完成”,from从……;for为了;with带有,具有。第二空用介词for。故选C。
79.B
【解析】句意:——我的家人今年冬天要去武汉旅行,但我们还没决定怎么去。——为什么不坐高铁?
考查特殊疑问词+动词不定式。when to leave什么时候离开;how to get there如何到那里;which hotel to choose选择哪家酒店;how long to stay there在那里待多久。根据“Why not take the high-speed railway”可知还没决定如何去武汉,用疑问词how。故选B。
80.B
【解析】试题分析: 句意:我真的不知道怎么处理这个问题。让我想想。deal with处理,不定式前加疑问词可做宾语,故选B。
考点: 考查不定式。
81.A
【解析】句意:——你开车时应该小心。——谢谢,我会的。我知道什么时候该停下来休息。
考查非谓语动词和省略句。根据“You should be careful when...”可知,该句是when引导的时间状语从句,时态用现在进行时“be doing”,此处从句与主句是同一个主语,可以省略主谓,第一空用现在分词,排除CD;第二空作动词know的宾语,用“疑问词+动词不定式”结构。故选A。
82.B
【解析】句意:——打扰一下,你能告诉我把车停在哪里吗?——当然,把它停在这里。我会帮你的。
考查疑问词+不定式。疑问词后接不定式,where to park表示“停在哪里”。故选B。
83.C
【解析】句意:——在考试前我经常感到很担心,我不知道该向谁求助。——艾米,你最好的朋友。
考查疑问词+不定式。what to ask问什么;when to ask什么时候问;who to ask问谁;how to ask如何问。根据“Amy, your best friend.”可知,此处是指人,用who+不定式。故选C。
84.C
【解析】试题分析:句意:---如此漂亮的花,我不能决定选择哪一个给我的母亲。--为母亲节,带一些康乃馨是最好的。这里是疑问词+to do,这里是选择哪一个。根据题意,故选C。
考点:考查疑问词+to do。
85.C
【解析】句意:——玛丽,你哥哥周末经常做什么?——他经常在动物医院做志愿者,学习如何照顾动物。
考查“疑问词+动词不定式”结构。learn后缺少宾语,主句主语“He”,他学习照顾动物,从句主语不是we,排除BD;再由“to learn”可知是学习如何照顾动物,排除A。故选C。
86.B
【解析】句意:——看,这是我的新手机。——很漂亮。你能告诉我在哪里可以买到吗?
考查不定式用法及宾语从句。空处作tell的宾语,选项C和D是宾语从句,宾语从句必须是陈述语序,C选项是疑问语序,D选项动词buy没有宾语,排除选项C和D;选项A和B是疑问词与不定式连用,A选项动词buy没有宾语,句意不完整。故选B。
87.B
【解析】此题考查的结构是,疑问词+to do sth.根据题干的意思我们可知,您能告诉我怎样才能学好英语吗?询问的是方式,故选B.
88.C
【解析】句意:玛丽不知道该和谁讨论她当时遇到的问题。
考查动词不定式和固定短语。根据“Mary didn’t know who…the problem”可知,know后面缺宾语,此处用到的结构是:疑问词+不定式,用到的短语是talk to sb. about sth.,所以the problem前需要用about;此处的who代替sb., 做talk to的宾语,故选C。
89.C
【解析】试题分析: 句意:我真的不知道怎样来做那件事。How是以什么样的方式来做,根据句意,故选C。
考点:考查疑问词+动词不定式。
90.C
【解析】句意:我想在网上买一台数码相机。你能告诉我怎样进行网上搜索吗?
考查疑问词+不定式。search搜索;how to search如何搜索;what to search搜索什么。根据“Can you show me ... the Internet ”可知,此处指如何用网络搜索,用how to search。故选C。
91.C
【解析】试题分析:句意:有时我觉得无聊,不知道做什么。疑问词可以和动词不定式一起构成短语,此时疑问词要放在不定式标记to之前,do是及物动词,所以该选C。
考点: 考查疑问词。
92.A
【解析】句意:——我还没有决定去哪里度假。——有自然美景的地方怎么样?
考查疑问词+动词不定式结构。where to go去哪;when to leave什么时候离开;what to do做什么;how to go怎么样去。根据“What about places of natural beauty ”可知还没有决定去哪里,故选A。
93.B
【解析】试题分析:句意:-请你给我句意穿什么衣服,好吗?-我很高兴。advise sb to do sth建议某人做某事;疑问词可以和动词不定式连用构成动词不定式短语。所以选B。
考点:考查动词不定式短语。
94.A
【解析】句意:我的学生写信给我,问我如何解决他们的问题,我给他们建议,告诉他们该怎么做。
考查疑问词+不定式。how to solve“如何解决”,后接宾语;what to do“做什么”,结构完整;how can solve表达错误;how to do“如何做”,后接宾语。第一空,空后“their problems”作动词solve“解决”的宾语,应用how to solve,排除B和D;第二空,空后无宾语,应用what to do,排除C。故选A。
95.A
【解析】句意:你知道如何做吗?
考查疑问词+不定式。how怎样;what什么;which哪一个;if如果。动词do有宾语“it”,故空格处应填疑问副词。排除B和C项,“how to do it”表示“如何做它(这件事)”。故选A。
96.B
【解析】句意:这个标志告诉我们怎么做。所以它是一个指示牌。
what疑问代词,可作do的宾语;how是疑问副词,do后面必须加宾语,how to do something怎样做某事,故排除C、D。a一个,用在辅音音素开头的单词前面;an一个,用在元音音素开头的单词前面;instruction是元音音素开头的单词,故用an。故选B。
97.B
【解析】句意:我的美国笔友将要来看望我。我正在考虑如何给他一个惊喜。
考查固定结构。本句think about后面需接宾语从句,从句用陈述句语序,AC两项都是疑问句语序,所以排除;根据上文“My pen pal from America is coming to visit me”可知,“我”考虑的是将来的事情,所以排除选项D。B项是“疑问词+动词不定式”固定结构,how to give him a surprise如何给他一个惊喜,作think about的宾语,故选B。
98.B
【解析】句意:我不知道做什么。你能给我一些建议吗?
考查疑问词+不定式。how to do如何做,后需加宾语;what to do做什么,what作do的宾语;which to do做哪一个,需有限定范围。根据“I don’t know,,,”可知,此处表示不知道做什么,并且前无限定范围,后无宾语,因此应该选what to do作know的宾语。故选B。
99.B
【解析】句意:看,学生们正在讨论为哪一个超级明星投票。
考查宾语从句。discuss是及物动词,其后直接加宾语,所以排除A和C;分析选项可知,此处使用“疑问词+动词不定式”结构作discuss的宾语。故选B。
100.A
【解析】句意:应该教这个男孩如何与他人好好相处。
考查动词短语,代词辨析和宾语从句。be taught how to被教导如何……;be known被熟知;teach how they教导他们如何……;taught to教导……(应是被动语态,taught前应有be);others其他人;another另一个;the other另一个(两者中)。be known常与as/for搭配,be known as“作为……而闻名”,be known for“因……而闻名”,此处不符。teach的常用搭配是teach sb. sth.“教导某人某事”,其被动表达是sb. be taught sth.,以及teach sb. to do sth.“教导某人去做某事”,其被动表达是sb. be taught to do sth.,和teach sth. to sb.“教某人某物”。结合“The boy should...get on well with...”,此处应用被动表达sb. should be taught sth.,句中应是表示与他人好好相处,表泛指,用复数,others符合语境。故选A。
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