/ 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
2025年牛津译林版九年级英语上册精讲精练
Unit 3 Teenage problems
核心语法:疑问词+不定式
一、结构解析
"疑问词+不定式"(Wh- + to do)是由疑问代词/疑问副词 + 动词不定式构成的特殊结构,在句中可充当多种成分。
常用疑问词:
what, which, when, where, how, whether(注意:why通常不用于此结构)
二、句法功能精讲
1. 作宾语(高频考点)
适用动词:
know, decide, remember, forget, learn, explain, tell, show等
例句:
I don't know what to say.(我不知道该说什么)
She forgot how to open the safe.(她忘了怎么开保险箱)
Can you tell me where to buy tickets (你能告诉我在哪买票吗?)
2. 作主语(较正式)
When to start hasn't been decided.(何时开始尚未决定)
How to solve the problem is the key.(如何解决这个问题是关键)
3. 作表语
The question is whether to accept the offer.(问题在于是否接受这个提议)
My worry is which to choose.(我担心的是选哪个)
三、五大使用要点
1. 疑问词选择规则
疑问词 适用场景 例句
what 无范围选择 I wonder what to wear.
which 有范围选择 Tell me which to pick.
how 方式方法 Learn how to swim.
whether 是否选择 Discuss whether to go.
2. 否定形式
在to前加not:
He explained how not to make mistakes.(他解释了如何避免犯错)
3. 逻辑主语一致
She taught me how to improve her pronunciation.
She taught me how to improve my pronunciation.
4. 与宾语从句转换
I don't know what to do.
= I don't know what I should do.
5. 禁用情况
疑问词作主语时不可用:
Who to go is a problem.
Who will go is a problem.
四、易错题型突破
1. 疑问词误选
I can't decide why to choose this one.
I can't decide whether to choose this one.
2. 不定式形式错误
She asked how operating the machine.
She asked how to operate the machine.
3. 语序错误
They discussed to where move.
They discussed where to move.
1.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
2.—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
3.—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
4.Excuse me! Can you tell me ________ get to No. 1 Middle School
A.where is B.which is to C.how I am D.how to
5.Could you tell me ________ the post office
A.where to get to B.how to get to C.when to get D.which to get
6.He didn’t know English at all, so he can’t understand ______ the machine.
A.what to control B.to control what C.how to control D.to control how
7.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
8.Could you please teach Tom how ________ an email
A.write B.writing C.to write D.to writing
9.—I like both of them. Could you please tell me ________
—Let me see. How about the yellow one
A.which to choose B.what to buy C.how to eat D.where to go
10.—Could you please tell me ________ to make a banana milk shake
—Yes. First, you need to get some bananas and peel them.
A.when B.what C.where D.how
11. Can you tell me how ________ pumpkin lanterns
A.make B.makes C.making D.to make
12.We will have a trip tomorrow, but I don’t know .
A.when to go B.how to go C.what to do it
13.Could you please tell me ________ ourselves in the earthquake
A.what to protect B.how to protect C.when to protect D.why to protect
14.I am not good at schoolwork. So I am thinking about ________ to improve my study at school.
A.how B.what C.where D.why
15.I don’t know ________ to solve this problem. Can you teach me
A.what B.how C.where D.which
16.She has already typed in the website, but she doesn’t know ________ next.
A.what to do it B.how to do C.what to do D.how she should do
17.I don’t know ________ spell the word. Can you help me
A.how to B.what to C.where to D.how
18.The question is very hard, so we don’t know ________.
A.what to answer B.which to choose C.how to answer it D.where to go
19.The work is difficult and I’m wondering how ________ it.
A.do B.doing C.to do
20.Jenny is going to the supermarket. And she is asking her mother what ________ for today’s dinner.
A.is buying B.buy
C.bought D.to buy
21.The Maths problem is really hard. I don’t know ________.
A.what to do B.where to do C.where to do it D.what to do it
22.—Could you tell me _________ the math problem
—Sorry. You’d better ask Mr. Hu for help.(2021福建闽候县期末改编)
A.how to solve B.when to solve C.why to solve D.how solving
23.—Can I help you, Andy
—Yes. I need your help, Mrs Li. I don’t know ________.
A.to do what next B.what to do next C.how to do next D.to do how next
24.We all need to know ________ to do if there is an earthquake.
A.how B.what C.which D.whether
25.Let me tell you how ________ a colourful life.
A.live B.living C.to live D.to living
26.Do you know ________ the camera
A.to how use B.to use how C.how to use D.what to use
27.—It’s important for us to know ________ all the subjects.
—Yeah, group work (小组合作) is my favorite.
A.how to study B.when to study
C.which to study D.what to study
28.We are talking about ________ for breakfast.
A.eating what B.what eating C.to eat what D.what to eat
29.There is some delicious food on the table. I really can’t decide ________ first.
A.what to eat B.how to eat C.who to eat D.when to eat
30.—My dad bought me a new MP4, but I don’t know ________.
—Let’s read the instructions.
A.what to use B.which one to use
C.how to use it D.when to use it
31.—Could you please tell me _________ to get to the TV station.
—Follow me, please. I’m going there, too.
A.where B.how C.which
32.I have no idea ________ her, as I forget the arrival time of her flight.
A.when to meet B.where to meet C.when can I meet D.where can I meet
33.We can’t work out the physics problem. Can you tell us ________
A.how to do it B.what to do it C.how to do D.what should to do
34.I wonder ________ next.
A.what to do B.how to do C.how to find D.what can I do
35.I don’t know where________the wonderful game.
A.watch B.to watch C.see D.to look at
36.Could you please tell me ________ improve my ________ ability
A.how to; read B.how to; reading C.what to; reading D.what to; read
37.There were _______ many colorful dresses in the shop. I couldn’t decide _______.
A.so; buy which B.so; which one to buy
C.such; which one to buy D.such; to buy which one
38.I often teach my dog how ________ in my free time.
A.do wonderful tricks B.do tricks wonderfully
C.to do wonderful tricks D.to do wonderfully tricks
39.—Could you tell me ________ next
—You’d better finish your homework first.
A.what to do B.how to do C.when to do
40.— Which dress do you like best, Madam
—Sorry, I can't decide _______ now.
A.to buy which one B.buy which one C.which one to buy D.which I should buy it
41.—Could you tell me ________ to be a volunteer in the community
—Well, you can email them to be a part of the team.
A.what B.how
C.why D.when
42.There were ________ many colourful dresses in the shop. I couldn’t choose ________.
A.so; to buy which B.so; which one to buy
C.such; which one to buy D.such; to buy which one
43.—Do you know ________ the maths problem
—Sorry. You can ask Mr White for help.
A.when to work out B.where to work out
C.how to work out D.what to work out
44.There are no differences between the two dresses, I really don’t know __________
A.how to choose B.which to choose C.what to remember
45.Can you teach me how ________ dumplings
A.make B.to make C.made D.making
46.—So beautiful flowers! I can’t decide _________ for my mom.
—For Mother’s Day, it can’t be better to take some carnations (康乃馨).
A.when to choose B.which to choose C.how to choose D.where to choose
47.—We don’t know _________ next. Let’s go and ask Mr. Li.
—Good idea.
A.what to do B.how to do C.what to do it
48.I haven’t decided where ________ for my summer vacation.
A.go B.went C.going D.to go
49.The kites on the Internet are very cheap, but Millie doesn’t know ________ them.
A.why to buy B.what to buy C.how to buy D.who to buy
50.The work is difficult and I’m wondering how ________ it.
A.do B.doing C.to do D.does
51.We learned ________ to work as a team by completing the task.
A.what B.which C.how D.who
52.The baby elephant is learning ________.
A.how have a bath B.to have a bath C.how to have a bath D.B and C
53.—Could you tell me ________ for the food
—You can just pay on the phone.
A.how to pay B.when to pay C.what to pay D.how much to pay
54.—I don’t know _________ remember the new English words.
—Don’t worry! Try thinking about their pronunciations.
A.what to B.how to C.when to
55.We need to decide (决定) where ________ the birthday party.
A.have B.to have C.having D.to having
56.Tom is good at English. He teaches me ________ and ________ speak English well.
A.English, what to B.English, how to C.English,/ D.English, to
57.—My dad bought me a new Huawei phone, but I don’t know________.
—Let’s read the instructions(说明书).
A.what to use B.which one to use C.how to use it D.when to use it
58.Just now they talked about where ________ their summer holiday.
A.spend B.to spend C.spending D.spent
59.The guests haven’t decided which hotel ________.
A.to stay B.to stay for C.to staying D.to stay in
60.There are many kinds of bikes here. She can’t decide _________.
A.where to buy B.how to go there C.which to buy
61.Can you tell me ____________ my memory
A.how to improve B.how can I improve
C.how improve D.to how improve
62.The math problem is so hard. I don’t have any ideas about _____________.
A.how to do B.what to do that
C.how to do that D.what should do that
63.I don't know how ________ commas.
A.use B.used C.to use D.using
64.Can you tell me ________ find the place
A.how I B.how to C.how that D.how can
65.—Look! Here is my bag. It's very nice.
—I like it. Could you tell me ________
A.where to buy B.where to buy it
C.where will I buy it D.where I will buy
66.Why not ________ your teacher for advice when you don’t know ________ the problems
A.to ask; how to do with. B.ask; what to deal with
C.to ask; how to deal with D.ask; what to do with
67.She looks very busy. I want to help her, but I don't know _________.
A.how to do B.what to do it C.what to do D.why to do
/ 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.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。
2.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。
3.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。
4.D
【解析】句意:打扰一下!你能告诉我怎么去第一中学吗?
考查疑问词+不定式结构。where is在哪里;which is to哪个是;how I am我如何;how to如何做。分析句子结构可知,本句是“疑问词+不定式”结构作宾语,根据语境可知,此处是在询问如何到达第一中学,所以应该用how to,表示“如何去”。选项A“where is”是疑问句语序,不能直接用于此处;选项B“which is to”结构不完整,且不符合语境;选项C“how I am”表示“我如何”,与语境不符。故选D。
5.B
【解析】句意:你能告诉我去邮局怎么走吗?
考查疑问词+动词不定式结构。get意为“到达”,为不及物动词,需要跟介词,才能接宾语,排除C/D;由于这里有地点名词“post office”,疑问词不用where。故选B。
6.C
【解析】句意:他根本不懂英语,所以他不知道如何控制这台机器。
考查宾语从句的简化。根据“he can’t understand”可知,该句是宾语从句,当从句的主语与主句主语一致时,宾语从句可简化为不定式结构,结合“the machine.”可知,应该是如何操控机器。故选C。
7.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。
8.C
【解析】句意:你能教汤姆如何写电子邮件吗?
考查非谓语。根据“teach Tom how...an email”可知,此处是结构“疑问词+不定式”的结构,空处用不定式形式,故选C。
9.A
【解析】句意:——我两个都喜欢。你能告诉我该选哪一个吗?——我想一下。黄色的怎么样?
考查疑问词接不定式的用法。which to choose选哪个;what to buy买什么;how to eat怎么吃;where to go去哪里。根据“I like both of them. Could you please tell me”以及“How about the yellow one ”可知,设空处是不知道“选哪个”。故选A。
10.D
【解析】句意:——你能告诉我怎么做香蕉奶昔吗?——可以。首先,你需要买一些香蕉并剥皮。
考查疑问词。when什么时候;what什么;where在哪里;how怎么样。根据“First, you need to get some bananas and peel them.”可知是问如何做香蕉奶昔,故选D。
11.D
【解析】句意:你能告诉我怎么做南瓜灯笼吗?
考查非谓语动词。根据“Can you tell me how ... pumpkin lanterns ”可知,此处指如何做南瓜灯,用“疑问词+不定式”作宾语。故选D。
12.B
【解析】句意:明天我们将去旅行,但是我不知道怎样去。
考查宾语从句。根据前一句中有“tomorrow”,可知此处不是询问时间,可推测出这里是怎样去,选项C不能加it,所以排除C;故选B。
13.B
【解析】句意:你能告诉我如何在地震中保护我们自己吗?
考查“疑问词+不定式”结构。根据“…ourselves in the earthquake ”可知,表示在地震中如何保护自己,用how to protect作宾语,how表方式。故选B。
14.A
【解析】句意:我功课不好。所以我在考虑如何提高我在学校的学习。
考查疑问词辨析。how如何;what什么;where在哪里;why为什么。根据“I am not good at schoolwork.”可知,此处应是表示“功课不好,所以在考虑要如何提高学习”。故选A。
15.B
【解析】句意:我不知道如何解决这个问题。你能教我吗?
考查疑问词。what什么;how如何;where在哪里;which哪一个。根据“to solve this problem.”可知是指不知道如何解决问题,应用how to do。故选B。
16.C
【解析】句意:她已经输入了网站,但她不知道下一步该做什么。
考查疑问词+不定式。what to do做什么,what作do的宾语,不能再加it,排除A;how是副词,后面的do要带宾语,B、D错。know是谓语动词,后跟“疑问词+不定式”作宾语,故选C。
17.A
【解析】句意:我不知道这个单词怎么拼写。你能帮助我吗?
考查特殊疑问句+不定式结构。how to如何做;what to做什么;where to去哪里;how如何。根据“Can you help me ”可知,此处是指不知道如何做,how to do sth“如何做某事”,作动词宾语。故选A。
18.C
【解析】句意:这个问题很难,所以我们不知道如何回答。
考查特殊疑问词+动词不定式。what to answer回答什么;which to choose选择哪个;how to answer it如何回答;where to go去哪里。根据“The question is very hard”可知,问题太难,而不知如何回答,故选C。
19.C
【解析】句意:这工作很难,我不知道该怎么做。
考查非谓语动词。疑问词how后跟动词不定式一起作wondering的宾语。故选C。
20.D
【解析】句意:Jenny要去超市。她问她妈妈今天的晚餐买什么。
考查非谓语动词。分析句子结构可知,此处应用“疑问词+不定式”结构,作宾补。故选D。
21.A
【解析】句意:这道数学题真的很难。我不知道该怎么办。
考查“疑问词+不定式”结构。what to do该做什么;where to do该在哪里做;where to do it该在哪里做它;what to do it语法错误。根据句意可知,这里需要表达“不知道该做什么”,符合语法和语义的只有“what to do”。故选A。
22.A
【解析】句意:——你能告诉我怎么解这道数学题吗?——对不起。你最好找胡先生帮忙。
考查特殊疑问词+to do。根据“the math problem”可知,如何解决问题,特殊疑问词how+to do作宾语;故选A。
23.B
【解析】句意:——我能帮你吗,安迪?——对。李太太,我需要你的帮助。我不知道下一步该怎么办。
考查疑问词+动词不定式。根据选项可知,考查疑问词+动词不定式,且选项A,C和D都是错误的,“what to do next”意为“下一步该怎么办”。故选B。
24.B
【解析】句意:如果发生了地震,我们都需要知道做什么。
考查疑问代词。 how 怎么样; what什么; which 哪一个; whether是否。句子用“疑问词+动词不定式”的结构作宾语。表达在地震时应“做什么”,用“what”。故选B。
25.C
【解析】句意:让我来告诉你如何过丰富多彩的生活。
考查非谓语动词。根据“Let me tell you how”可知,此处考查“疑问词+不定式”的用法,故选C。
26.C
【解析】句意:你知道怎么用这架照相机吗?
考查疑问词+不定式。know是及物动词,所以空处缺少宾语,结合选项,应是用“疑问词+不定式”,空后还有宾语the camera,所以D项不符合语法,故选C。
27.A
【解析】句意:——对我们来说,知道怎样去学习所有课程是重要的。——是的,小组合作是我最喜欢的。
考查“疑问词+不定式”的结构。how to study如何学习;when to study何时学习;which to study要学习哪一个;what to study学习什么。根据答语“group work (小组合作) is my favorite.”可知,此处指的是“如何学习所有的科目”,用how,故选A。
28.D
【解析】句意:我们正在谈论早饭吃什么。
考查疑问词加动词不定式。eating what形式错误,汉语式英语;what eating形式错误;to eat what形式错误;what to eat吃什么,是疑问词+动词不定式结构,在句中作宾语。故选D。
29.A
【解析】句意:桌子上有许多美味的食物。我真的不能决定先吃什么。
考查宾语从句连接词。what“什么”,指代事物,连接代词;how“怎么”,表方式,连接副词;who“谁”,指代人,连接代词;when“什么时候”,表时间,连接副词。根据“There is some delicious food on the table. I really can’t decide...first.”可知,桌上食物很多,不知道先吃什么,此处指代的是food,what“什么”,指代事物。故选A。
30.C
【解析】句意:——我爸爸给我买了一台新的MP4,但我不知道怎么用。——让我们读一下说明书。
考查疑问词+动词不定式。根据“Let’s read the instructions”以及所给选项可推测,空格处说的是“如何使用新的MP4”,故选C。
31.B
【解析】句意:——你能告诉我去电视台怎么走吗?——请跟着我。我也要去那里。
考查疑问词辨析。where哪里;how怎样;which哪个。由答语“Follow me, please.”可知,此句是说怎样到达电视台,how to do...为“疑问词+不定式”结构,在句中作宾语,故选B。
32.A
【解析】句意:我不知道什么时候去见她,因为我忘了她的航班到达的时间。
考查宾语从句。由“I have no idea”可知此处缺少宾语,故应是宾语从句;由“I forget the arrival time of her flight.”可知,此处表达时间,应用“when”来引导,故排除B、D两项;特殊疑问词引导的宾语从句遵从陈述语序原则,C项表达错误;此处使用“特殊疑问词+不定式”作宾语。故选A。
33.A
【解析】句意:我们解不出这道物理题。你能告诉我们怎么做吗?
考查疑问词+不定式。英语中疑问词+不定式,在句中作宾语,是疑问代词+to do,或疑问副词+to do sth.。B选项多了it;C选项动词后少宾语;D选项should是情态动词,后面应加动词原形。所以排除BCD选项,A选项符合,故选A。
34.A
【解析】句意:我不知道下一步该做什么。
考查宾语从句和“疑问词+动词不定式”结构。宾语从句用陈述语序,排除D;BC选项中的how是疑问副词,而do和find是及物动词,后要加宾语,副词不可以作宾语成分,排除BC;A选项符合,what可以作do的宾语。故选A。
35.B
【解析】句意:我不知道在哪里看这场精彩的比赛。
考查动词辨析和非谓语。watch观看;see看见;look at看;表示“观看比赛”用watch,而此处是“疑问词+不定式”的结构,故选B。
36.B
【解析】句意:你可以告诉我如何提高我的阅读能力吗?
考查疑问词+不定式结构以及词义辨析。根据“improve my … ability”可知,此处指如何提高能力,用疑问词how+to的结构。reading ability“阅读能力”,动名词作定语,故选B。
37.B
【解析】句意:商店里有如此多五颜六色的连衣裙。我不能决定买哪一件。
考查动词不定式。so和such都表示“如此”,so修饰形容词或副词,such修饰名词。many是形容词,但many前有so修饰时构成“so many/much/few/little”结构。“不能决定买哪一件”可以表达为“couldn’t decide which one to buy”。故选B。
38.C
【解析】句意:我经常教我的狗如何在我的空闲时间做奇妙的把戏。
考查动词不定式和形容词用法。此处是“疑问词+动词不定式”作宾语的结构,排除AB选项;tricks是名词,所以应用形容词wonderful修饰,故选C。
39.A
【解析】句意:——你能告诉我下一步该做什么吗?——你最好先完成你的家庭作业。
考查“疑问词+不定式”结构。what to do做什么;“how to do+宾语”意为“怎样做……”;“when to do+宾语”意为“何时做……”。原句中没有跟宾语,由答语“You’d better finish your homework first.”可知,此句是说告诉我接下来做什么,故选A。
40.C
【解析】句意:——小姐,你最喜欢哪一条裙子?——对不起,我现在还无法决定买哪一条。
考查固定结构。decide决定,及物动词需接宾语;which one意为“哪一件”,“疑问词+动词不定式”用作宾语;which one to buy意思是“买哪一件”,作decide的宾语。结合选项,故选C。
41.B
【解析】句意:——你能告诉我如何成为社区的志愿者吗?——嗯,你可以给他们发电子邮件,成为团队的一员。
考查特殊疑问词。what什么;how如何;why为什么;when什么时候。根据“to be a volunteer in the community”以及“you can email them to be a part of the team.”可知是如何成为志愿者。故选B。
42.B
【解析】句意:商店里有很多五颜六色的裙子。我不知道买哪一件。
考查副词和疑问词+动词不定式。such如此,修饰名词;so如此,修饰形容词或副词。根据“There were…many colourful dresses in the shop. I couldn’t choose….”可知,第一空修饰形容词many应用so;which one to buy是“疑问词+动词不定式”结构,表示“买哪一件”。故选B。
43.C
【解析】句意:——你知道如何解这道数学题吗?——对不起。你可以向怀特先生求助。
考查疑问词+不定式。when,where和how都是疑问副词,what是疑问代词,此处work out已有宾语,what在此不符合,排除,再根据“You can ask Mr White for help.”可知是问如何解决,故选C。
44.B
【解析】句意:这两件裙子之间没有区别。我真的不知道选哪一个。
考查“疑问词+不定式”结构。how to choose怎样选择;which to choose选择哪个;what to remember记忆什么。know后缺少宾语,用“疑问词+不定式”结构作宾语;根据“There are no differences between the two dresses”可知两件裙子没区别,不知道选哪个,用which to choose。故选B。
45.B
【解析】句意:你能教我怎么包饺子吗?
考查“疑问词+不定式”结构。此处使用“疑问词+不定式”结构作宾语,故选B。
46.B
【解析】句意:——好漂亮的花!我不能决定给我妈妈选哪一些。——对于母亲节来说,拿一些康乃馨再好不过了。
考查“疑问词+动词不定式”结构。when to choose什么时候选;which to choose选哪一个;how to choose怎么选;where to choose在哪里选。根据“So beautiful flowers!”以及“For Mother’s Day, it can’t be better to take some carnations.”可知,这里是在众多漂亮的花中不知道选哪一些给妈妈,用which to choose。故选A。
47.A
【解析】句意:——我们不知道下一步该怎么做。我们去问问李先生。——好主意。
考查疑问词+不定式。分析句子结构可知,横线处作know的宾语,英语中常用“疑问词+to do”的形式作宾语,此处问的是“做什么”,且可以作do的宾语,应用what,而C选项中it多余了,故选A。
48.D
【解析】句意:我还没有决定暑假要去哪里。
考查动词不定式。where既可以引导特殊疑问句,也可以跟动词不定式,这里使用where to go作decided的宾语,故选D。
49.C
【解析】句意:网上的风筝很便宜,但是米莉不知道怎么买。
考查疑问词+动词不定式。why to buy为什么买;what to buy买什么;how to buy如何买;who to buy错误用法。根据“The kites on the Internet are very cheap”可知不知道怎么买网上便宜的风筝。故选C。
50.C
【解析】句意:这工作很难,我正在想怎么做。
考查非谓语动词。wondering后缺少宾语,用“疑问词how+动词不定式to do”作动词wondering的宾语,意为“怎么做”。故选C。
51.C
【解析】句意:通过完成任务,我们学会了如何团队合作。
考查疑问词辨析。what什么;which哪一个;how怎样;who谁。根据“We learned … to work as a team by completing the task”可知,学会了如何团队合作,用how与“to work …”构成“疑问词+to do”结构作宾语,故选C。
52.D
【解析】句意:大象宝宝正在学习洗澡/如何去洗澡。
本题考查learn的用法。learn的用法有“learn to do sth”和“learn+特殊疑问词+动词不定式”。故选D。
53.A
【解析】句意:——你能告诉我怎么付餐费吗?——你可以用电话付款。
考查动词不定式的结构。how to pay如何付款;when to pay什么时候付款;what to pay支付什么;how much to pay付多少钱。根据“You can just pay on the phone.”可知,此处表示“如何付款”。故选A。
54.B
【解析】句意:——我不知道如何记住新的英语单词。——别担心!试着思考他们的发音。
考查疑问词+不定式。根据“Don’t worry! Try thinking about their pronunciations.”可推知,此处指不知道该如何记住新单词,应用how to+动词原形。故选B。
55.B
【解析】句意:我们需要决定在哪里举行生日聚会。
考查动词不定式。have有,动词原形;to have不定式;having现在分词或者动名词;to having此形式错误。根据“decide (决定) where...the birthday party”可知,此处是“特殊疑问词+ to do sth.”在句中作decide的宾语,表达“在哪里”。故选B。
56.B
【解析】句意:汤姆擅长英语。他教我英语和如何说好英语。
考查“疑问词+不定式”结构。根据“He teaches me...and...speak English well.”可知,是教我如何说好英语,故选B。
57.C
【解析】句意:——我爸爸给我买了一部华为手机,但是我不知道怎么使用它。——让我们看看说明书。
考查疑问词+不定式结构。根据“Let’s read the instructions(说明书)”可知,上句应该是不知道怎样使用,故选C。
58.B
【解析】句意:刚才他们谈论去哪里度过他们的暑假。
考查动词不定式。根据“where …their summer holiday”可知,此处考查“疑问词+动词不定式to do”,在句中作宾语。故选B。
59.D
【解析】句意:客人们还没有决定住进哪家旅馆。
考查动词与介词的搭配。stay“停留,逗留”;stay for“逗留”,后接一段时间;stay in“在……(地方)停留”,后接地点。由“hotel”可知,此处要用stay in。故选D。
60.C
【解析】句意:这里有很多种自行车。她无法决定买哪一种。
考查疑问词+不定式。where to buy去哪里买;how to go there如何到那儿;which to buy买哪一种。根据“There are many kinds of bikes here.”可知,此处是决定不了买哪一种。故选C。
61.A
【解析】句意:你能告诉我怎样提高记忆力吗
考查疑问词+不定式。根据“Can you tell me…my memory ”可知,此处为疑问词+不定式结构,意为“怎样做某事”。故选A。
62.C
【解析】句意:这个数学题太难了。我不知道该怎么做。
考查疑问词加不定式的结构。由“The math problem is so hard. I don’t have any ideas about”可知,数学题太难了,不知道该怎么做,要用“how+不定式”的结构作宾语,排除B、D,A选项的动词do后缺宾语,C项结构完整。故选C。
63.C
【解析】句意:我不知道如何使用逗号。
考查“疑问词+动词不定式”结构。根据“how…commas”可知,此处为“疑问词+动词不定式”结构,故选C。
64.B
【解析】句意:你能告诉我这个地方怎么走吗?
考查“疑问词+动词不定式”结构。根据“tell me...find the place ”和选项可知,此处应用疑问词how加动词不定式to find作“tell”的宾语,how to do sth.“怎样做某事”。故选B。
65.B
【解析】句意:——看!这是我的包。它很漂亮。——我喜欢。你能告诉我在哪里买的吗?
考查特殊疑问词加动词不定式结构。where to buy错误,缺少buy的宾语;where to buy it特殊疑问词加动词不定式结构,作宾语;where will I buy it错误,宾语从句应用陈述语序;where I will buy错误,缺少buy的宾语。故选B。
66.D
【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AC选项;do with/deal with“处理”,do with与what连用,deal with与how连用。故选D。
67.C
【解析】句意:她看起来很忙,我想帮她,但我不知道该怎么办。
考查“特殊疑问词+动词不定式”结构。do,做、干,及物动词,后须跟宾语,how和why都是疑问副词,不能作宾语,故排除A、D项;what,什么,是疑问代词,可以作do的宾语,后面不能再跟宾语,故排除B项。故选C。
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