should用法归纳与练习had better
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情态动词had better,should,ought to用法点击一、情态动词had better1.had better 表示“最好”,其缩写为“’d better”,表示“有义务做某事”。
例如:He warned me that I had better not say anything about it.他警告我对此事最好只字不提。
The matter had better be left as it is.这事最好任其自然。
2.had better 表示提出建议、劝告或命令等,含有“应该做某事”之意,一般适用于对晚辈、平辈。
例如:I thought you had better have my opinion first.我想你最好先听听我的意见。
It’s very cold outside. You’d better put on more clothes.外面很冷,你做好多穿些衣服。
3.had better 否定形式为had better not,疑问句中had better 的否定形式有两种:Hadn’t + 主语+better + 动词原形;Had + 主语+ better not +动词原形。
例如:Hadn’t you better go with them? 你跟他们去不是更好吗?Had we better not go? 我们不去不是更好吗?4.Had better do sth. 有时可省略为better do sth. 例如:Better stay at home and have a good rest. 最好呆在家中好好休息。
二、情态动词should, ought to1.Should 作情态动词,表示劝告、建议,多指主观上有责任、有义务做某事,作“应该”解,语气比ought to要弱。
例如:You should keep your promise.你应该履行诺言。
Had better, should 及ought tohad better , should 及ought to都是情态助动词.一、had better 的用法1.had better 是固定词组,意思是“应该;最好”,其用法相当于情态动词,动词had 没有人称或数的变化。
had better 常用来提出建议,语气较强,往往含有强迫或命令的口气,故常用于长辈对晚辈、上级对下级或平辈之间。
该短语指的是现在或将来的情况,而不是指过去。
had better的简略式为:'d better 。
2.had better的否定是had better not;疑问式是将had 放在主语之前。
3.对长辈或上级说话时,应避免使用had better 。
比较礼貌的说法是It may /might be better for you to do sth .二、should 的用法1.情态动词should 常用来表示劝告、建议或义务,意思是“应该”,可用于各种人称,其语气比must 及ought to。
此外,should 还可表示合理的推论,意思是“应该;理应;一定 . . . . 吧”。
2.表推测三、ought to 的用法1.表示劝告、建议或义务,意思是“应该;应当”,语气比表示义务的 should强,但比must 弱,强调客观要求,含有强烈的道义、责任、法律或原则等意味;否定式是ought not to 。
2.表预测,推测。
专项测验1.You'd better _____ late next time .A. don'tB. not beC. not beingD. won't be2.---- Can I leave this door open at night ? ----- You _______ better not .A.shouldB. wouldC. couldD. had3.----- I'm afraid I've got a bad cold . ---- _______ .A.Keep away fromB. Never mindC. You need medicineD. Better go and see a doctor4.You _____ smoke while you are walking around in the woods here. You __ start a fire .A.shouldn't ; mustB. can't ; shouldn'tC. can't ; may notD. mustn't ; could5. ---- Will you please go to the cinema with me tonight ?------Sorry ._________ , but I have some papers to finish .A.I should love itB. I should love toC. I would likeD. I had better not6.You are their teacher. You ______ care of them .A.should to takeB. might to takeC. ought to takeD. need take7.---- ______ we to make a careful plan before we start the work ?---- Oh ,no . I don't think you _____ to do that .A.Must ; needB. Need ; needC. ought ; mustD. ought ; need8.Li Ming didn't want to do that , but he _____ .A.need toB. ought toC. have toD. had to9.---- Has the train arrived ? ---- No , it ______ half an hour ago .A. ought to arriveB. ought to have arrivedC. might arriveD. might have arrived。
should用法归纳一、Should 表示义务、责任、常译为“应当”,“应该”,或表示一种估计的情况,译成“按理应当”,“估计......”。
Why should I pay him? 为什么我该付给他钱?They should be there by now,I think. 我估计,他们现在到那儿了。
二、用于成语中I should like to......“我想(做)......”I should like to ask the teacher a question. 我想问老师一个问题。
三、shouldn’t :不应该(表示责备);应该不,应该没有(表示推测)。
如:You shouldn't be so lazy.你不应该这么懒惰。
There shouldn't be any problem with your listening.你的听力应该没有问题了。
用should 或shouldn't 填空。
1. All of us ________study hard and learn English well.2. As a student, you_______ eat in class.3. You _______speak to your parents like this ,you must be polite (有礼貌)4. You __________eat less and take more exercise if want ot be healthier and stronger.5. My mother is very tired after work, I________ do some housework for her.had better(常简略为'd better)是一固定词组,had better"最好",用于表示对别人的劝告、建议或表示一种愿望。
should和 ud better语法试讲should 用法归纳一、Should 表示义务、责任、常译为“应当”,“应该”,或表示一种估计的情况,译成“按理应当”,“估计…… 。
”Why should I pay him? 为什么我该付给他钱?They should be there by now I think. 我估计,他们现在到那儿了。
二、用于成语中should like to.….... 我“想(做)……”I should like to ask the teacher a question. 我想问老师一个问题。
三、shouldn’t:不应该(表示责备);应该不,应该没有(表示推测)。
如:You shouldn't be so lazy. 你不应该这么懒惰。
There shouldn't be any problem with your listening. 你的听力应该没有问题了。
had better(常简略为'd better)是一固定词组,had better"最好",用于表示对别人的劝告、建议或表示一种愿望。
其用法有以下几点:一、had better 后面必须跟动词原形。
had better后跟动词原形(即不带to的不定式),构成had better do sth. 句型。
这里的had 不能用have 来替换。
如:You'd better go to hospital at once. 你最好立即去医院看病。
Tom, you'd better go there today. 汤姆,你最好今天去那儿。
二、主语不论是第几人称,句子不论是什么时态,都要用had better的形式。
如:Now you(he,we)had better listen to the teacher. 你(他,我们)现在最好听老师讲。
三、had better的否定式。
had better, should, ought to用法had better, should, ought to是重要的情态动词,也是高考重要考点,学习时应注意下列几点:一、了解相互间关系had better(最好), should(应该)与ought to(应该)均为提建议、阐述观点的情态动词,其后接动词原形。
should 比had better语气强,ought to语气最强。
一般情况下should与ought to可通用。
例1:You had better go there at once.你最好立即去那里。
例2:You ought to / should work hard.你应该努力工作。
值得注意的是:should还有"竟然"之意,表出乎意料。
例:You can't imagine that a well-behaved gentleman should be so rude to a lady.你真是难以想象这么一个有风度的先生对一个女子是如此之粗鲁。
二、掌握句型变换方法had better, should, ought to作为情态动词,各种句型变换均在自身形式上作变化。
(一)否定句had better, should, ought to用于否定句时,否定词均位于其后,具体形式为:had better not do, shouldn't / should not do, oughtn't to do。
例1:You had better not start at this time.此时你最好别出发。
例2:He shouldn't be careless in class.他上课时不应粗心。
例3:She oughtn't to waste time.她不应该浪费时间。
(二)一般疑问句had better, should, ought to用于一般疑问句时,分别将had, should, ought提至句首。
dbetter后加什么Youd better后加动词的原型。
had better;had better do最好(做)。
扩展资料例句:1、Now that you are here, you'd better stay. 既然你已经来了,最好还是住下。
2、He thought he had better track this wolf and kill it 他认为最好跟踪这只狼,杀了它。
几个“应该”的区别:should /ought /had better1、should和ought to均用以表示应该做某事,不过should常用得多:例句:You should take the baby to the doctor’s.你应该把这婴儿带去看看医生。
2、在疑问句中,通常用should而不是ought to:例句:Should we call the doctor?我们叫医生来好吗?3、 had better亦可用以表示在目前状况下最好做某事:例句:We’d better hurry or we’ll miss the train.我们最好快点,否则就赶不上火车了。
4、过去时用should have或ought to have构成:例句:She should have asked for some help.她本应该请求帮助的.。
5、should not或shouldn't(以及在北美英语中很少见,在英国英语中为正式用法的ought not to或oughtn't to)表示不应该:例句:You shouldn’t drive so fast.你不应该把车开得这么快。
6、should not have或shouldn't have以及很少用的ought not to have或oughtn't to have均用于指过去:例句:I’m sorry, I shouldn’t have lost my temper.对不起,我不该发脾气。
情态动词had better,should,ought to用法点击一、情态动词had better1.had better 表示“最好”,其缩写为“’d better”,表示“有义务做某事”。
例如:He warned me that I had better not say anything about it.他警告我对此事最好只字不提。
The matter had better be left as it is.这事最好任其自然。
2.had better 表示提出建议、劝告或命令等,含有“应该做某事”之意,一般适用于对晚辈、平辈。
例如:I thought you had better have my opinion first.我想你最好先听听我的意见。
It’s very cold outside. You’d better put on more clothes.外面很冷,你做好多穿些衣服。
3.had better 否定形式为had better not,疑问句中had better 的否定形式有两种:Hadn’t + 主语+better + 动词原形;Had + 主语+ better not +动词原形。
例如:Hadn’t you better go with them? 你跟他们去不是更好吗?Had we better not go? 我们不去不是更好吗?4.Had better do sth. 有时可省略为better do sth. 例如:Better stay at home and have a good rest. 最好呆在家中好好休息。
二、情态动词should, ought to1.Should 作情态动词,表示劝告、建议,多指主观上有责任、有义务做某事,作“应该”解,语气比ought to要弱。
例如:You should keep your promise.你应该履行诺言。
should用法归纳一、Should 表示义务、责任、常译为“应当”,“应该”,或表示一种估计的情况,译成“按理应当”,“估计......”。
Why should I pay him? 为什么我该付给他钱?They should be there by now,I think. 我估计,他们现在到那儿了。
二、用于成语中I should like to......“我想(做)......”I should like to ask the teacher a question. 我想问老师一个问题。
三、shouldn’t :不应该(表示责备);应该不,应该没有(表示推测)。
如:You shouldn't be so lazy.你不应该这么懒惰。
There shouldn't be any problem with your listening.你的听力应该没有问题了。
用should 或shouldn't 填空。
1. All of us ________study hard and learn English well.2. As a student, you_______ eat in class.3. You _______speak to your parents like this ,you must be polite (有礼貌)4. You __________eat less and take more exercise if want ot be healthier and stronger.5. My mother is very tired after work, I________ do some housework for her.had better(常简略为'd better)是一固定词组,had better"最好",用于表示对别人的劝告、建议或表示一种愿望。
had better 的用法归纳(一)1. had better的基本用法特点其意为“最好”、“应该”,后接动词原形,与情态动词should用法相似,其中的had通常缩略为‘d。
如:You’d better get some sleep.你最好去睡一会儿。
We had better go before it rains.我们最好在下雨前就去。
2. had better如何构成否定式和疑问式构成否定式时,通常将not置于had better之后(而不是had之后);而构成疑问式时,则通常将had(而不是had better)置于主语之前。
如:I’d better not disturb him.我最好别去打扰他。
What had we better do? 我们最好怎么办?【注】在否定疑问句或反意疑问句中可将not与had连用。
如:Hadn’t we better go now? 我们是不是现在就去呢?3. had better后接进行式和完成式动词有时后接动词的进行式,表示最好马上做某事;也可接完成式动词,表示最好做完某事或本该做某事而未做某事。
如:I think I’d better be going.我想我最好还是马上走。
You’d better be getting your clothes ready. 你最好马上把衣服准备好。
You had better have done that. 你最好把那事做完。
You had better have stayed here. 你本来应该呆在这儿的。
4. 有关had better的几点用法说明(1) had better用于提出建议或请求时,并不是一个很客气委婉的表达,它暗示对方有义务去做某事,因此通常用于长辈对晚辈或上级对下级等,而不宜反过来用。
(2) had best与had better 用法和含义均差不多,但不如had better普通。
should用法归纳
一、Should表示义务、责任、常译为“应当”,“应该”,或表示一种
估计的情况,译成“按理应当”,“估计......”。
WhyshouldIpayhim为什么我该付给他钱
Theyshouldbetherebynow,Ithink.我估计,他们现在到那儿了。
二、用于成语中Ishouldliketo......“我想(做)......”
Ishouldliketoasktheteacheraquestion.我想问老师一个问题。
三、shouldn’t:不应该(表示责备);应该不,应该没有(表示推测)。
如:
Youshouldn'tbesolazy.你不应该这么懒惰。
Thereshouldn'tbeanyproblemwithyourlistening.你的听力应该没有问题了。
用should或shouldn't填空。
1.Allofus________studyhardandlearnEnglishwell.
2.Asastudent,you_______eatinclass.
3.You_______speaktoyourparentslikethis,youmustbepolite(有礼貌)
4.You__________eatlessandtakemoreexerciseifwantotbehealthiera ndstronger.
5.Mymotherisverytiredafterwork,I________dosomehouseworkfor her.
hadbetter(常简略为'dbetter)是一固定词组,hadbetter"最好",用于表示对别人的劝告、建议或表示一种愿望。
其用法有以下几点:
一、hadbetter后面必须跟动词原形。
hadbetter后跟动词原形(即不带to的不定式),构成hadbetterdosth.句型。
这里的had不能用have来替换。
如:
You'dbettergotohospitalatonce.你最好立即去医院看病。
Tom,you'dbettergotheretoday.汤姆,你最好今天去那儿。
二、主语不论是第几人称,句子不论是什么时态,都要用hadbetter 的形式。
如:
Nowyou(he,we)hadbetterlistentotheteacher.你(他,我们)现在最好听老师讲。
三、hadbetter的否定式。
如:
常用的否定形式是将否定副词not直接放在hadbetter的后面。
如:Youhadbetternotmissthelastbus.你最好不要错过末班公共汽车。
YouhadbetternotleaveforNanjingthedayaftertomorrow.你最好后天不要动身去南京。
注意:否定副词not绝不能放在had的后面。
如:不能说:Youhadn'tbettergo.而应该说:Youhadbetternotgo.
四、在祈使句中,had有时可以省略。
如:
Betternotdoit.最好别做那事。
Betternotwaitforthem.最好不要等他们。
五、hadbetter在表示对别人劝告、建议时,不宜用于与陌生人、长辈及上级的交谈中。
对长辈说话时,最好不用hadbetter。
比较有礼貌的说法是:Itmightbebetterforyou...;
Itwouldbebetterforyou...。
如:
Itmightbebetterforyoutohelpme,Grandpa.爷爷,您最好能帮我一下。
[练习]
下列各句都有一处错误,请改正。
1.You'dbettertowaitformeattheschoolgate.
2.Ihavebetterwritetohimnow.
3.Youhadnotbettergothere.。