【弯道超车】Unit 2 Strong mind 核心语法之情态动词had better的用法-2026-2027学年沪教版(五四学制)(新教材)七年级英语上册精讲精练 (含答案解析)

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【弯道超车】Unit 2 Strong mind 核心语法之情态动词had better的用法-2026-2027学年沪教版(五四学制)(新教材)七年级英语上册精讲精练 (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
2026-2027学年沪教版(五四学制)七年级英语上册核心语法精讲精练
(新教材)Unit 2 Strong mind
核心语法:情态动词had better 的用法
一、核心概念
had better 是一个表示强烈建议或警告的情态动词短语,意为“最好……”,强调如果不照做,可能会产生不良后果。
核心含义: “最好……”(带有紧迫感或警告意味)
核心结构: 主语 + had better + 动词原形
示例:
You had better see a doctor.(你最好去看医生。)
We had better hurry, or we'll be late.(我们最好快点,否则要迟到了。)
二、基本结构
1. 肯定句
结构: 主语 + had better + 动词原形(常缩写为 'd better)
You had better go now.(你最好现在走。)
She 'd better study harder.(她最好更努力学习。)
We had better take an umbrella.(我们最好带把伞。)
2. 否定句
结构: 主语 + had better not + 动词原形
You had better not be late again.(你最好别再迟到了。)
She had better not tell anyone.(她最好不要告诉任何人。)
We 'd better not go there alone.(我们最好不要单独去那里。)
注意: 否定形式是 had better not,不是 had not better。
3. 疑问句
结构: Had + 主语 + better + 动词原形?(较少用,通常用 Should I... )
Had I better go now (我最好现在走吗?)
Had she better wait here (她最好在这里等吗?)
回答:
Yes, you had better.(是的,你最好这样。)
No, you had better not.(不,你最好不要。)
三、核心用法
1. 表示强烈建议
用于提出建议,语气比 should 更强,带有紧迫感。
You 'd better see a doctor. You look terrible.(你最好去看医生,你脸色很差。)→ 隐含:不看医生病情会加重
You 'd better take a rest. You look tired.(你最好休息一下,你看上去很累。)
We 'd better leave now. It's getting late.(我们最好现在走,天快黑了。)
2. 表示警告
用于警告对方,如果不做某事会有不好的后果。
You had better not be late again!(你最好别再迟到了!)→ 隐含:再迟到有你好看
You 'd better apologize, or I won't forgive you.(你最好道歉,否则我不会原谅你。)
He 'd better keep his promise.(他最好遵守承诺。)
3. 表示自我告诫
用于对自己的一种提醒或决定。
I 'd better go now. It's getting dark.(我最好现在走,天快黑了。)
I 'd better study for the exam tomorrow.(我最好为明天的考试学习。)
四、had better 与 should 的对比(核心考点!)
对比项 had better should
核心含义 “最好”(带有警告/紧迫感) “应该”(建议/责任)
语气强度 很强,带警告、紧迫感 温和、劝告性
后果强调 明确指出或隐含不良后果 一般不提后果,只提建议本身
使用场合 多用于熟人、家人或警告场合 可用于任何关系,更安全礼貌
礼貌程度 可能显得粗鲁或带有威胁感 礼貌、安全
对比例句:
对朋友的建议:
You should quit smoking. It's bad for your health.(你应该戒烟,对健康不好。)→ 温和建议
You 'd better quit smoking, or your girlfriend will leave you.(你最好戒烟,不然你女朋友会离开你。)→ 警告
对学生的建议:
You should study harder to pass the exam.(你应该更努力学习才能通过考试。)→ 建议
You 'd better study harder, or you'll fail.(你最好更努力学习,否则你会不及格。)→ 警告
安全法则: 拿不准用 should,更安全礼貌。
五、易错点与难点突破
1. had better 后误接 to 或 doing
You'd better to go now.
You'd better going now.
You'd better go now.
2. 否定形式位置错误
You had not better go.
You had better not go.
3. had 不是过去时
had better 中的 had 不是过去时,它是一个固定短语,表示现在或将来的建议。
Yesterday I had better finish my work.(想表达过去“最好”)
You 'd better finish your work now.(现在建议)
Yesterday I should have finished my work.(过去“本应该”)
4. 场合不当
对老师说:Teacher, you 'd better explain this again.(语气不妥)
Teacher, could you please explain this again / Teacher, perhaps you should explain this again.
5. 与 must 的语气混淆
must:语气最强,“必须”带强制性
should:语气较弱,“应该”是建议
had better:语气强于 should,带警告意味
六、常见句型与情景应用
1. 健康建议
You 'd better see a doctor immediately.(你最好马上去看医生。)
You 'd better drink more water.(你最好多喝水。)
2. 安全警告
You 'd better not go out alone at night.(你最好晚上不要独自外出。)
You 'd better be careful when crossing the street.(你最好过马路时小心。)
3. 出行建议
We 'd better take a taxi, or we'll be late.(我们最好打车,否则要迟到了。)
You 'd better get to the airport early.(你最好早点到机场。)
4. 学习建议
You 'd better review what you learned today.(你最好复习今天学的内容。)
We 'd better take notes in class.(我们最好在课上做笔记。)
七、思维导图总结
八、记忆口诀
had better 口诀:
had better 表“最好”,后接动词用原形;
否定形式要记清,had better not 在中间。
语气强烈带警告,否则后果很糟糕;
日常建议用 should,礼貌安全错不了。
1.You’d better ________ out alone at night for safety.
A.not go B.don’t go C.not to go
2.Nancy is your younger sister. You’d better ________ her. You should get on well with her.
A.to argue to B.not to argue to
C.argue with D.not argue with
3.You look tired. You ________ stay up too late.
A.had better not to B.had not better
C.had better not D.didn’t have better
4.It’s getting dark outside. You’d better________ home alone. Tell your parents to pick you up.
A.not go B.not to go C.go D.to go
5.You ________ too much time playing computer games. It’s bad for your eyes.
A.had better not spend B.had better not to spend
C.had better don’t spend D.had better not spending
6.You look tired. You had better ________ a good rest.
A.stop to have B.stop having
C.to stop to have D.to stop having
7.If you want to protect the plants ________ the cold weather, you’d better ________ some raincoats for them.
A.from; to take B.from; take C.with; to take D.with; take
8.You’d better ________ the same mistakes in tomorrow’s test, or you’ll lose points again.
A.repeat B.not to repeat C.not repeat D.to repeat
9.Don’t spend so much time looking back on the past. You ________ work hard for the future.
A.would B.had better C.could D.may
10.We'd better ________ what we spend our money on. Then we will know where our money goes.
A.repair B.report C.record D.return
11.You’d better ________ your phone before you go to sleep, because it’s bad for your eyes.
A.don’t use B.use C.not use D.not to use
12.We had better ________ early to avoid the heavy traffic.
A.start B.to start C.starting D.started
13.You’d better ________ the small village before sunset.
A.arrive B.arrive in C.to get to D.reach
14.You’d better ________ late for the after-school club.
A.not be B.don’t be C.won’t be D.isn’t
15.We’d better ________ learning from mistakes.
A.keep B.to keep C.keeping D.kept
16.We had better ________ less time on screens to protect our eyesight well.
A.spend B.spending C.to spend D.spent
17.—You’d better________work too hard like this.
—I see. You mean ________too hard makes one tired and ill.
A.not, work B.don’t, working C.don’t, to work D.not, working
18.When it comes to ________, we had better not ________ with food in our mouth.
A.polite, talk B.politeness, talk
C.polite, to talk D.politeness, to talk
19.They’d better ________ the restaurant to book a table in advance.
A.call B.to call C.calling D.to calling
20.You ________ keep your promises. It is a good habit.
A.are better to B.better to C.had better D.had better to
21.—What do you think of the shirt and the trousers
—Well, you’d better not ________ two quite different types of clothes.
A.to wear B.wearing C.wore D.wear
22.You’d better ________ your mobile phones before going to bed.
A.put away B.putting away C.to put away D.puts away
23.You ________ drive carefully in such bad weather.
A.had better B.would rather C.used to D.have to
24.You’d better ________ enough water when you go hiking.
A.take B.to take C.taking D.took
25.You ________ wear warm clothes when you go skiing. It’s very cold in the mountains.
A.had better B.would rather C.used to D.had to
26.You had better ________ too much chocolate because it’s bad for teeth.
A.eat B.not eat C.not to eat D.to eat
27.You’d better ________ loudly in the library.
A.not speak B.don’t speak
C.not to speak D.don’t to speak
28.You’d better ________ too deep into the forest.
A.not go B.don’t go C.not to go
29.You’d better ________ your valuable books well so that nobody can take them away.
A.lock up B.give up C.get lost D.hear of
30.You’d better ________ the information in the encyclopaedia.
A.look up B.to look it up C.look it up D.to look up
31.— ________ take a walk
—It’s raining hard. You’d better ________ at home.
A.Why don’t; stay B.Why not; to stay
C.Why don’t you; to stay D.Why not; stay
32.You ________ stay out late alone. It’s not safe for students.
A.had better not B.not had better C.had not better D.would better not
33.You’d better ________ your phone before you go to sleep, because it’s harmful to your eyes.
A.don’t use B.use C.not use D.not to use
34.You’d better ________ the book before you take notes.
A.read B.to read C.reading D.reads
35.You ________ better not ask people about their age in Western countries, as it’s impolite.
A.had B.would C.should D.could
36.If you are planning to spend your money having fun this week, better ________ it—you’ve got some big bills coming.
A.forget B.forgot C.forgetting D.to forget
37.You’d better ________ a rest when you feel tired.
A.take B.to take C.taking D.took
38.I think the book is worth________. You’d better ________ the chance.
A.reading; not to miss B.read; not miss C.reading; not miss
39.You’d better ________ too much time playing computer games.
A.not spend B.not to spend C.don’t spend
40.Be careful! The ice is not thick enough. You’d better ________ on it.
A.skate B.not to skate C.not skating D.not skate
41.You’d better ________ late for class again, or the teacher will be angry.
A.not to be B.not be C.don’t be
42.You’d better ________ aloud to improve your pronunciation.
A.read B.to read C.reading D.reads
43.You’d better ________ two days off. You look bad.
A.to take B.take C.took D.taken
44.We’d better ________ a room ________ these people to stay in.
A.to provide; with B.provide; with C.to provide; for D.provide; for
45.If we don’t sleep well, we ________ ride a bicycle to school.
A.may not B.had better not C.must
46.—I feel tired.
—You ________ have a good rest first.
A.had better B.would like C.want to D.used to
47.You’d better ________ the link before you click it.
A.check B.to check C.checking
48.We ________ protect wild animals around us.
A.had better B.can’t C.mustn’t D.may not
49.You had better ________ anyone about the surprise party. It’s a secret.
A.don’t tell B.not tell C.to not tell D.not to tell
50.The sky is getting dark. You ______ go out for a walk.
A.should B.shouldn’t C.had better D.had better not
51.You ________ plan your time well before exams.
A.had better B.can’t C.mustn’t D.needn’t
52.You ______ pick such a broad topic. Choose something more specific.
A.should B.not C.had better D.had better not
53.It is raining. You ________ take an umbrella with you.
A.can B.had better C.may D.mustn’t
54.The doctor advised my father to quit smoking, so he ________ smoke anymore.
A.had better not B.had not better C.hasn’t better D.shouldn’t better
55.You’d better _______ the link carefully before you click it.
A.check B.checking C.to check D.checked
56.It’s raining heavily outside. You ________ take an umbrella with you.
A.had better not B.shouldn’t C.had better D.better to
57.You’d better ________ your personal information with strangers online.
A.not share B.not to share C.don’t share D.didn’t share
58.You’d better ________ more about Chinese traditional culture.
A.learn B.learning C.to learn D.learned
59.You had better ________ early and get up early.
A.sleep B.to sleep C.sleeping D.slept
60.You had better ________ well with your teammates.
A.get on B.to get on C.getting on D.got on
/ 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.A
【解析】句意:为了安全,你最好晚上不要独自外出。
You’d=You had。had better not do sth.是固定结构,意为“最好不做某事”,故用not go。
2.D
【解析】句意:南希是你的妹妹。你最好不要和她争吵。你应该和她好好相处。
根据后句“You should get on well with her。”可知,此处是在建议对方“最好不要和她吵架”。表示“和某人争吵”的固定搭配为“argue with sb.”;且固定短语“had better”后必须接动词原形,其否定形式为had better not+动词原形“最好不要做某事”,应填not argue with。
3.C
【解析】句意:你看起来很累。你最好不要熬夜太晚。
根据前句“You look tired.”和空后的“stay up too late”可知,本句意在向对方提出“最好不要熬夜”的委婉否定建议;“最好不要做某事”应用固定结构“had better not do sth.”,其中not必须置于better之后,且后接动词原形“stay up”。
4.A
【解析】句意:外面天黑了。你最好不要独自回家。叫你父母来接你。
根据前句“It’s getting dark outside.”以及后句“Tell your parents to pick you up.”可知,出于安全考虑,说话者在劝阻对方“最好不要独自回家”,应使用否定含义。表示“最好(不要)做某事”应用固定结构“had better (not) +动词原形”(其中had better常缩写为’d better),其否定结构为“had better not+动词原形”,因此空处应填not go。
5.A
【解析】句意:你最好不要花太多时间玩电脑游戏。这对你的眼睛不好。
had better意为“最好”,后接动词原形,否定形式为had better not do sth.“最好不要做某事”。选项A符合要求。
6.A
【解析】句意:你看起来累了。你最好停下来好好休息。
stop to do sth.停下来去做某事;stop doing sth.停止做某事。had better意为“最好”,后接动词原形;根据“You look tired”可知,因为累了,所以应该停下来(手头的事)去休息,应用stop to have。
7.B
【解析】句意:如果你想保护植物免受寒冷天气的侵害,你最好给它们带些雨衣。
protect...from...意为“保护……免受……”,第一空应用介词from;had better后接动词原形,意为“最好做某事”,第二空应用take。
8.C
【解析】句意:你最好不要在明天的考试中犯同样的错误,否则你又会丢分。
固定句型You’d better (not) do sth.,had better后接动词原形,否定形式直接在better后加not,后面接动词原形repeat。
9.B
【解析】句意:不要花太多时间回顾过去。你最好为未来努力工作。
would将会;had better最好;could能;may可能。根据前句“Don’t spend so much time looking back on the past”可知,说话者在提出建议,劝告对方不要沉溺过去,后句应表示“最好”为未来努力。had better意为“最好”,常用于提出建议或忠告,应填had better。
10.C
【解析】句意:我们最好记录我们把钱花在哪里了。这样我们就知道钱去哪了。
repair修理;report报告;record记录;return归还。根据后句“Then we will know where our money goes.”可知,为了清楚钱的去向,应该把花费情况记录下来。
11.C
【解析】句意:在你睡觉之前最好不要使用手机,因为这对你的眼睛有害。
You’d是You had的缩写,had better后接动词原形,其否定形式为had better not do sth.,意为“最好不要做某事”。根据“because it’s bad for your eyes”可知,此处建议不要使用手机,应用not use。
12.A
【解析】句意:我们最好早点出发以避免拥挤的交通。
固定搭配had better do sth表示“最好做某事”,后接动词原形。
13.D
【解析】句意:你最好在日落前到达这个小村庄。
arrive到达(不及物动词,后不能直接接地点);arrive in到达(加大地点);to get to到达;reach到达(及物动词,可直接接地点)。had better do意为“最好做某事”,后接动词原形,且根据“the small village(小村庄)”可知此处需要能直接搭配地点的及物动词,reach后可直接加地点名词。
14.A
【解析】句意:你最好不要去参加课后俱乐部时迟到。
根据“You’d better ...”可知,had better后接动词原形,其否定形式为had better not do sth,表示“最好不要做某事”,应填not be。
15.A
【解析】句意:我们最好坚持从错误中学习。
keep坚持,选项是它的各种形式。keep动词原形;to keep不定式;keeping动名词/现在分词;kept过去式/过去分词。固定搭配“had better do sth.”意为“最好做某事”,动词原形即可,应填“keep”。
16.A
【解析】句意:为了保护视力,我们最好少花时间在屏幕上。
“had better”意为“最好”,后接动词原形,构成“had better do sth.”结构。应填spend。
17.D
【解析】句意:——你最好不要像这样工作太辛苦。——我明白。你意思是工作太辛苦会让人疲惫和生病。
由下文“I see. You mean...tired and ill.”可知,上文是劝对方“不要工作太辛苦”,用“had better not do sth.”结构,第一空应填“not”;第二空在宾语从句中作主语,动词需用动名词形式“working”。
18.B
【解析】句意:说到礼貌,我们最好不要嘴里含着食物说话。
politeness礼貌(名词),polite有礼貌的(形容词),talk说话。第一空:“when it comes to”中的to为介词,后接名词或动名词,因此应填politeness。第二空:“had better not do sth.”为固定结构,后接动词原形,因此应填talk。
19.A
【解析】句意:他们最好给餐厅打电话提前预订座位。
had better意为“最好”,后接动词原形。故选call。
20.C
【解析】句意:你最好信守承诺,这是一个好习惯。
are better to结构错误;better to缺少主语与情态动词;had better最好,后接动词原形;had better to多了不定式符号to。根据固定搭配had better do sth.表示最好做某事,空格后为动词原形keep,符合该结构要求,故选C。
21.D
【解析】句意:——你觉得这件衬衫和裤子怎么样?——嗯,你最好不要穿两种风格差别很大的衣服。
had better not后必须接动词原形;to wear为不定式;wearing为动名词;wore为过去式,均不符合语法规则,wear契合句子语境。
22.A
【解析】句意:你最好在睡前把手机收起来。
“You’d better”是“You had better”的缩写,had better意为“最好”,后接动词原形。应填put away。
23.A
【解析】句意:天气这么恶劣,你最好小心驾驶。
had better最好;would rather宁愿;used to过去常常;have to不得不。句子是针对坏天气给出驾驶的建议,had better契合句子语境。
24.A
【解析】句意:当你去远足的时候,你最好带足够的水。
take带,原形;to take带,不定式;taking带,现在分词;took带,过去式。句中“You’d better”是You had better的缩写,had better后接动词原形,意为“最好做某事”。故选 A。
25.A
【解析】句意:你去滑雪时最好穿上暖和的衣服。山里非常冷。
had better最好(表示建议);would rather宁愿;used to过去常常;had to不得不。根据后句“It’s very cold”可知,建议穿暖和的衣服,had better do sth.“最好做某事”表示建议,应填had better。
26.B
【解析】句意:你最好不要吃太多巧克力,因为这对牙齿不好。
had better后接动词原形,表示“最好做某事”,其否定形式为had better not do sth.,表示“最好不做某事”。根据“because it’s bad for teeth”可知,吃巧克力对牙齿有害,因此建议最好不要吃,需用否定形式且后接动词原形。
27.A
【解析】句意:你最好不要在图书馆里大声说话。
had better表示“最好做某事”,其后需接动词原形形式;其否定形式为“had better not do sth.”,意为“最好不要做某事”。应填not speak。
28.A
【解析】句意:你最好不要深入森林太远。
You’d better是You had better的缩写,意为“最好”,后跟动词原形;否定形式直接在better后加not,即had better not do,动词go用原形。所以应填not go。
29.A
【解析】句意:你最好把你的贵重书籍锁好,以便没人能把它们拿走。
lock up“把……锁起来;妥善保管”;give up“放弃”;get lost“迷路;消失”;hear of“听说”。根据“so that nobody can take them away”可知,目的是防止书籍被拿走,需要把书保管好。故填lock up。
30.A
【解析】句意:你最好查阅百科全书里的信息。
had better后接动词原形,排除带to的选项B和D;look up意为“查阅”,句中the information作宾语,若选C会造成宾语重复(it与the information),应填look up。
31.D
【解析】句意:——为什么不散散步呢?——雨下得很大。你最好待在家里。
Why not为什么不(后接动词原形);Why don’t you你为什么不。“Why not…”和“Why don’t you…”都表示“为什么不……”,后接动词原形,因此第一空可填“Why not…”或“Why don’t you…”;而had better do sth.是固定搭配,意为“最好做某事”,had better后接动词原形,因此第二空应填stay;结合选项,只有D选项符合两个空的语法要求。
32.A
【解析】句意:你最好别独自在外待得太晚。对学生来说不安全。
had better not最好不;not had better语序错误;had not better语序错误;would better not搭配错误。根据“It’s not safe for students.”可知,此处表示建议不要做某事,使用搭配had better,其否定形式是had better not do sth.。
33.C
【解析】句意:在你睡觉之前最好不要使用手机,因为这对你的眼睛有害。
根据“You’d better”可知,had better后接动词原形,其否定形式为had better not do sth.,意为“最好不要做某事”,因此应填not use。
34.A
【解析】句意:你最好先读这本书再做笔记。
read读(动词原形);to read读(不定式);reading读(动名词);reads读(第三人称单数)。根据had better do sth.固定搭配,应填read。
35.A
【解析】句意:在西方国家,你最好不要问别人的年龄,因为这是不礼貌的。
had有;would将要;should应该;could能。had better (not) do sth.为固定搭配,意为“最好(不要)做某事”,后接动词原形;根据“as it’s impolite”可知,此处是提出建议,最好不要问年龄,应该填had。
36.A
【解析】句意:如果你这周打算花钱玩乐,最好还是忘了它——你有几笔大额账单要付。
根据“better...it”可知,此处是had better do sth.的省略结构,表示 “最好做某事”,其中“better”后接动词原形。应填forget。
37.A
【解析】句意:当你感到累的时候,你最好休息一下。
根据固定搭配had better do sth.“最好做某事”可知,had better后接动词原形,应选用take。
38.C
【解析】句意:我认为这本书值得一读。你最好不要错过这个机会。
根据“be worth doing sth”可知,第一空应用动名词形式,即“reading”;根据“had better not do sth”可知,had better后接动词原形,其否定形式为“had better not do sth”,因此第二空应填“not miss”。
39.A
【解析】句意:你最好不要花太多时间玩电脑游戏。
根据题干“You’d better ________”可知,had better后接动词原形,否定形式为had better not do sth.,应填not spend。
40.D
【解析】句意:小心!冰不够厚。你最好不要在上面滑冰。
根据“The ice is not thick enough.”可知冰层太薄,建议不要滑冰。had better后接动词原形,否定形式为had better not do sth.。
41.B
【解析】句意:你最好不要再上课迟到了,否则老师会生气。
由“or the teacher will be angry”可知,此处表示你最好不要再上课迟到了,had better do sth.“最好做某事”是固定搭配,其否定形式是had better not do sth.“最好不做某事”,应填not be。
42.A
【解析】句意:你最好大声朗读来提高你的发音。
根据“You’d better”(即You had better)可知,had better后接动词原形,意为“最好做某事”,因此应选read。
43.B
【解析】句意:你最好请两天假。你看起来状态不好。
根据“You’d better”可知,had better意为“最好”,后接动词原形take。
44.D
【解析】句意:我们最好为这些人提供一个房间住。
had better后接动词原形,排除A、C;provide sth. for sb. 意为“为某人提供某物”,provide sb. with sth.意为“提供给某人某物”。句中a room是物,these people是人,物在人前,应用provide sth. for sb.结构。
45.B
【解析】句意:如果我们睡不好,我们最好不骑自行车去学校。
may not可能不或不可以;had better not最好不;must必须。根据“If we don’t sleep well”可知,睡眠不足会影响安全,因此应该是建议不要骑自行车,had better not表示建议,符合语境。
46.A
【解析】句意:——我感到很累。——你最好先好好休息一下。
had better最好,后接动词原形,用于提出建议;would like想要,后接动词不定式;want to想要,后接动词原形;used to过去常常,表示过去习惯。根据“I feel tired”可知,此处是后者给前者提建议。应填had better。
47.A
【解析】句意:在你点击链接之前,你最好检查一下这个链接。
You’d better 是You had better的缩写,意为“最好”,其后接动词原形。应填check。
48.A
【解析】句意:我们最好保护周围的野生动物。
had better最好;can’t不能;mustn’t禁止;may not可能不。根据语境,保护野生动物是一种积极的建议或劝告,应用had better,表示“最好做某事”,应填had better。
49.B
【解析】句意:你最好不要告诉任何人关于惊喜派对的事。这是个秘密。
had better意为“最好”,后接动词原形,其否定形式为had better not do sth.,意为“最好不做某事”。根据“It’s a secret.”可知,此处表示否定建议,结构应用not+动词原形。故填not tell。
50.D
【解析】句意:天快黑了。你最好别出去散步。
should应该;shouldn’t不应该,侧重一般义务;had better最好;had better not最好不,侧重针对具体情况的强烈建议或警告。根据“The sky is getting dark.”可知天色变暗,暗示此时出去散步可能不安全或不方便,因此应给出否定建议。结合语境,天色变暗是具体情况,用had better not更贴切。故选D。
51.A
【解析】句意:考试前你最好规划好时间。
had better最好;can’t不能;mustn’t禁止;needn’t不必。根据常识,考试前合理规划时间是一种建议或劝告,应用had better,应填had better。
52.D
【解析】句意:你最好不要选这样一个宽泛的主题。选一些更具体的。
should应该;not不;had better最好;had better not最好不。根据后句“Choose something more specific.”可知是建议选具体的,推测出前句是不应该选宽泛的主题,表否定建议。应填had better not。
53.B
【解析】句意:正在下雨。你最好随身带一把伞。
can能;had better最好;may可能;mustn’t禁止。根据“It is raining.”可知正在下雨,推测出建议对方最好带伞,had better表示建议。
54.A
【解析】句意:医生建议我父亲戒烟,所以他最好不要再吸烟了。
根据“The doctor advised my father to quit smoking”可知,此处是表达“他最好不要再吸烟了”,“最好不要做某事”用had better not do sth.表达,是固定搭配。
55.A
【解析】句意:在你点击链接之前,你最好仔细检查一下。
You’d better是You had better的缩写,意为“最好”,后接动词原形。
56.C
【解析】句意:外面正下着大雨。你最好随身带把伞。
根据“It’s raining heavily outside.”可知,外面雨大,建议带伞。had better后接动词原形,表示肯定建议。
57.A
【解析】句意:你最好不要在网上与陌生人分享你的个人信息。
You’d better是You had better的缩写,意为“最好”,后接动词原形,其否定形式为had better not do sth.,即在better后直接加not。B 项多了to,C、D项助动词使用错误。
58.A
【解析】句意:你最好多了解一些中国传统文化。
had better意为“最好”,后接动词原形。
59.A
【解析】句意:你最好早睡早起。
sleep睡觉,动词原形;to sleep动词不定式;sleeping动名词;slept过去式。had better do sth.“最好做某事”,固定搭配,因此应填sleep。
60.A
【解析】句意:你最好和你的队友相处融洽。
get on with sb.意为“与某人相处”,had better do...“最好做……”,后接动词原形,故填get on。
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