must变had better例如 We must go back to the station.变成 We had b

最好(不)要做某事
其中had常缩写成'd
造句:
It's cold.You'd better wear your coat.

had better do
原型

应该是 had better do sth
如：
You'd better go home now. 现在你应该回家.
————
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这是个固定搭配,没有为什么的问题

had better (not) do sth.
没有would better这种用法的吧.
You'd better do sth.这里的’d只可能指代had哦~

had better=should=ought to

我也是8年级``嘿嘿
1.need做实意动词时+to do sth.做情态动词时+动词不定式.
2 had better do sth./not do sth.
3 mix it/them up
add it/them to
cut it/them up 就这样
4 pay attention to do sth.注意做谋事
pay attention to sth.注意某事
5 why not do sth.=How about doing sht.=What about doing sth.=Why don't you do sth.
5How many+可数
6 How much+不可数
7 good for nothing nothing复合形容词后置
差不多是这样了吧?累```做作业去喽`

had better 最好做某事
同义词--> should,must,ought to,had best,be advisable to
1.I think you’d better speak to Mr.White right away about this matter.我你最好马上告诉怀特先生这件事.
2.The doctor told the patient that he’d better go home and rest.
医生告诉病患最好是回家休息.
一般常用 you’d better 等缩写格式.

不是.
had better （常简写为 'd better ）意思是“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,构成 had better do sth.句型.这里的 had 不能用 have 来替换.例如：
Tom,you'd better go there today.
汤姆,你最好今天去那儿.
二、不论主语是第几人称,不论句子是什么时态,都要用 had better 的形式.例如：
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 可用的时态有现在时、将来时和进行式（表示讲话人提出建议时,动作正在进行）三种.had better + have + v.-ed 表示“本该做却没有做的事”.例如：
Now you had better listen to the radio.
你现在最好听收音机.
You had better start tomorrow.
你最好明天动身.
We had better be watching the TV play.
我们最好现在正在看电视剧.
You had better have done it.
如果你把那件事办妥就好了.（但实际上你没有那样做）
四、 had better 常用的否定形式是将否定副词 not 直接放在 had better 的后面.例如：
You had better not miss the last bus.
你最好不要错过末班车.
注意：否定副词 not 绝不能放在 had 的后面.例如不能说：You hadn't better go.而应该说：You had better not go.
五、 had better 的疑问式.had better 通常不以普通疑问句的形式出现.但有时用于否定疑问句,常用 Hadn't ＋主语＋ better 结构,作为一种劝告形式时,要比肯定形式的语气更婉转一些.例如：
Hadn't you better take an umbrella?
你不认为该带一把伞吗?
六、 had better 在反意疑问句中,疑问部分一般用“… had ＋主语?”,但有时可用“… will you?”表示一种请求或建议.例如：
You'd better not go out today,had you?
今天你最好不要外出,好吗?
I must stay at home this afternoon.You had better come to my house,will you?
今天下午我必须留在家里.你最好来我家,好吗?
七、在祈使句中,had 有时可以省略.例如：
Better not do it.
最好别做那种事.
Better not wait for them.
最好不要等他们.
八、 had better 的被动式.例如：
You had better have done it.→ It had better have been done.
九、 had better 在间接引语中的用法.在直接引语变为间接引语的过程中,had better 同第一人称或第三人称连用时,保持不变； had better 同第二人称连用时,可以保持不变,也可用 advise ＋宾语＋不定式（宾补）来表示.例如：
He said,“ Ann had better hurry.”→ He said （ that ） Ann had better hurry.
He said,“ I had better hurry.”→ He said （ that ） he had better hurry.
十、 had better 在表示对别人的劝告、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 had better .比较有礼貌的说法是：It might be better for you … ; It would be better for you ….例如：
It might be better for you to help me,Grandpa.
爷爷,您最好能帮我一下.

had betternot do sth dont have to do sth 是的

I had better go to sleep now.或者I'd better go tosleep now.

根据肯定/否定的原理：
You had better go now,HADN'T you?(前面肯定,後面否定)
You had better not tell him,HAD you （前面否定,後面肯定）
还有第三种吗?

1、用had better造句---'d better=had better（not)+动词原形
You ’d better finish your homework before school is over.
2、祈使句造句---Come and listen to me .
3、用一般现在时造句---I usually get up at six thirty every morning.
4、用一般过去式造句---She went to the post office yesterday.
5、用一般将来时造句---We shall be better next term.
6、用现在完成时造句---My grandfather has been dead for nearly 20 years.
7、用正在进行时造句---I'm writing a letter now.
8、用情态动词造句---She must leave now.

the best

5.会议进行的时间比我预想的要长很多（go on）
6.你最好多找父母交流一下(had better）
7.这与我们所讨论的问题毫不相干（have nothing to do with..）
8.他由于健康上的原因而提前退休（health）
9.我认为他有所隐瞒,他知道的比他承认的要多（hold back）
10.很荣幸今晚能和你在一起（honor）
My honor to be with you tonight
11.为了提高英语口语能力,我们必须多读多说（improve）
In order to improve ability of oral English, we must read and speak as much as possible
12.电脑病毒会感染电脑的数据文件（infect）
Computer virus can infect data document in computers.
13.在这家旅馆很难找到一个房间,除非你预定（in advance）
It's difficult to find a room in this hotel, unless you book in advance
14.这座塔从街上看不见（invisible）
This tower is invisible from the street
15.他仍坚持说他当时不在那个地方（insist on）
He insisted on saying that he wasn't there at that time
16.我想你的一些同事会羡慕的（jealous）
I think some of your colleagues will be jealous
17.很抱歉,我看不出来有什么可笑的（joke）
Sorry, I can't feel any joke
18.她是鉴别酒的专家（judge）
She is a professor to judge wine
19.近来油价暴涨（jump）
There is a sharp jump of oil price
20.现在是晴天,但我还是带上雨伞以防万一（just in case）
Now it's fine, but I take an umbrella just in case
21.妈妈总是不让我在河里游泳（keep..from..）
Mom always keeps me from swimming in the river
22.在公园里不要践踏青草（keep off）
Keep off stepping on the grass in park
23.这是成功的关键（key）
This is the key to success
24.别相信他,这种人我了解（kind）
Don't trust him, I know this kind of person
25.要是八点钟你还不起床,我就来敲你的门（knock）
If you don't wake up at 8, I'll knock at your door
26.条条大路通罗马（lead to ）
Every road leads to Rome
27.麻烦总是在你最意想不到的时候找上门来（least）
Trouble always comes to you when you think least of it
28.这位英语老师一向把学生当成自己的孩子（look on ..as）
This English teacher looks on the students as her own children all the time
29.试卷上交之前请认真检查两遍（look over）
Please look over the paper before you hand it in.
30.那些富人过着奢侈的生活（luxury）
Those rich men live a luxury life

he is not himself today,and you had better take him to see the doctor.

When we make purchases,we had better bring our own cloth bag instead of using plastic bags.

may/might as well do sth.不妨……,最好……
might as well 比may as well 更婉转些.
另：may/might/could (just) as well have done sth,后接have done sth,表示过去最好这么做,而实际没做的事儿

1.(表示义务、责任等)应当,应该
Students ought to study hard.
学生应该努力用功.
2.(表示愿望)应该,该
You ought to read his novels.
你应该读读他的小说.
3.(表示可能性、期望)该
It ought to be a fine day tomorrow.
明天该是好天气.
should.比较通俗的用法.一般用should.
At this point you all should be finished
这个时候你们都该完成了.
had better.
had.have 的过去式.
had better
I used to had a better one
我以前有个更好的.
had better最好.更好.
you'd better go home.
你还不快回家.（不是正是说话.）
you'd better get yourself together.
你还不振作起来
懂了吗..

先说could 是 可以,能 的意思、表能力 也是can的过去时及虚拟语气 （这个你暂时可以不去管）
should 应该 比如you should do sth 你应该做某事
ought to 应该 但是语气比较强硬 强调有职责有必要等
had better 最好 you'd better do sth 你最好做某事 语气比较弱 可以用于为对方考虑的情况下 you'd better go early or you will be late.你最好早点走否则会迟到

had是助动词.
You had not better do your homewok,had you?
You had better do your homework,had not you?

1 you had better leave the radio on when you go shopping .
2 staff's enthusiasm and politeness.
3 the chain shop brings not only convenience to consumers ,but also great profits to company
仅供参考

不能,had better do something 本身就是固定搭配,包括了动词,也可以算是情态动词,

should not
had better
解释最好做某事
had better not do sth.
最好不做某事

1、用had better造句---'d better=had better（not)+动词原形
You ’d better finish your homework before school is over.
2、祈使句造句---Come and listen to me .
3、用一般现在时造句---I usually get up at six thirty every morning.
4、用一般过去式造句---She went to the post office yesterday.
5、用一般将来时造句---We shall be better next term.
6、用现在完成时造句---My grandfather has been dead for nearly 20 years.
7、用正在进行时造句---I'm writing a letter now.
8、用情态动词造句---She must leave now.

答案是:better had.在祈使句中had有时可以省略,在这里就省略了had,而后面的had是必须的意思了.
had better相当与一个助动词,它的后面要跟动词原形;had better只有一种形式,没有has/have better这一形式;它的否定式是在它后面加not:
You had better go now你最好现在就走
He'd(=He had) better do it now他最好现在做
She'd better not cry她最好别哭
在表示要求,命令时,语气是有---should(应该),---had better(最好),---must(必须)逐渐加强.

【You had better have breakfast now, hadn't you?】
【He had better finish the task, hadn't he?】
用had better时,疑问词应用hadn't开头
望采纳 O(∩_∩)O~

It would be better for you to stay here
It might be better for you to stay here

had better表示一种建议,其否定形式是had better not……缩写形式为 'd betterhad better一般接的就是省to的不定式,接进行时式,完成式或被动语态没见过,应该是接的这种形式式：had better be do-ing、had better hav...

had better +动词原形 表示“最好.”
would rather + 动词原形表示“更想.,宁愿.”
You had better go to see him at once.你最好立刻去见他.
You'd better not stay here.你最好别呆在这儿.
I would rather stay here alone.我想一个人呆在这儿.
I'd rather die than live without you.
没有你我宁愿去死.

would be better 和 might be better
风雨兼程 学海同舟 有事说话 满意【采纳】

是的,这是固定句式,had better do sth,最好做某事.

Make the advertisement
Daily diet
有.更好

用couldn't
couldn't have done sth.是对过去的否定猜测,表示过去不可能发生某事
根据前半句“昨天的展览会上我们没有见到他”,可知后半句意为“他昨天不可能去看展览”.

原形

had better/'d better+动词原形是固定搭配 表示最好做某事
用于会话中,对应该做的事,尤指该避免的问题,提出坚定的劝告.
注意：had better/'d better后用不带"to"的不定式.

这是固定短语,意思是：最好……
had better do sth 最好做某事

祝你开心.

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可用于的时态.
　　1.had better用于指现在.如：
　　Now you had better listen to the radio.你现在最好听收音机.
　　You had better be quiet.你最好安静一些.
　　2.had better用于指将来.如：
　　You had better start tomorrow.你最好明天动身.
　　We had better buy the more expensive one.It will last much longer and so it will be cheaper in the end.我们最好还是买贵些的,它更经久耐用,所以到头来,它还是更便宜些.
　　3.had better用于进行式,表示讲话人提出建议时,动作正在进行.如：
　　We had better be watching the TV play.我们最好现在就看到电视剧.
　　We had better be starting back now.我们最好现在就动身回去.
　　4.had better + have + V-ed可表示"本该做而没有做的事".如：
　　You had better have done it .如果你把那件事办妥就好了.(但实际上你没有那样做)
　　You had better have stayed with us .要是当时你和我们呆在一起多好啊.(实际上没有)
　　四、had better的否定式.如：
　　常用的否定形式是将否定副词not直接放在had better的后面.如：
　　You had better not miss the last bus.你最好不要错过末班公共汽车.
　　You had better not leave for Nanjing the day after tomorrow.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：You hadn't better go.而应该说：You had better not go.
　　五、had better的疑问式.
　　had better通常不以普通疑问句的形式出现.但有时用于否定疑问句,常用Hadn't+主语+better...结构,作为一种劝告形式,比肯定形式的语气更婉转一些.如：
　　Hadn't you better take an umbrella?你不认为该带一把伞吗?
　　Hadn't you better ask him first?你不认为该先问问他吗?
　　六、had better在反意疑问句中.
　　在反意疑问句中,疑问部分一般用"had+主语?",但有时可用"will you?"表示一种请求或建议.如：
　　You'd better not go out today,had you?今天你最好不要外出,好吗?
　　I must stay at home this afternoon.You had better come to my house,will you?今天下午我必须留在家里,你最好来我家,好吗?
　　七、在祈使句中,had有时可以省略.如：
　　Better not do it .最好别做那事.
　　Better not wait for them.最好不要等他们.
　　八、had better的被动式.
　　You had better do it.->It had better be done.
　　You had better have done it.->It had better have been done.
　　九、had better在间接引语中的用法.
　　在直接引语变为间接引语的过程中,had better同第一人称或第三人称连用时,保持不变；had better同第二人称连用时,可以保持不变,也可用advise+宾语+不定式(宾补)来表示.如：
　　He said,"Ann had better hurry."->He said (that) Ann had better hurry.
　　He said," I had better hurry."->He said (that) he had better hurry.
　　He said to me," You had better hurry." ->He said (that) I had better hurry.->He advised me to hurry.
　　十、had better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had better.比较有礼貌的说法是：It might be better for you...；
　　It would be better for you.如：
　　It might be better for you to help me,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'd better to wait for me at the school gate.
　　2.I have better write to him now.
　　3.You had not better go there.
　　参考答案：1.去掉to.2.have应改为had.3.将not置于better后面.

1 had better not
2 sould
should not
3 should
4 should not
5 had bette

1 You don't have to tell him this matter.
2 You had better not to stay up.
3 When watching movies,you must keep quiet.
4 Why don't you share your joy of success with your mother?
5 Perhaps you shou stop to enjoy the blue sky.
6 When I arrived,the movie had been showed for half an hour.
7 When mon came home,dad had left for ten minutes.
8 Before you told me,I had never heard of this place.

You had better bring warm clothes to prevent colds

I had better stay here
we had better wait for him
You had better call a doctor
提示：had better do
祝进步,望采纳

had better do sth 最好做某事
否定式
had better not do sth最好别做某事
祝你开心如意!

should
肯定句：You should study hard.
否定句：You shouldn't lazy at school.
疑问句：Should you go to school tomorrow?
had better
肯定句：You had better study hard when you are young.
否定句：You had better not to go out this night.
疑问句：Do I had better stay home?

不加 had better +do动词原形

had better 是情态动词,所以後面要跟be原型.be是am,is,are,的原型.
one thousand pounds,a thousand pounds
one thousand miles ,a thousand miles
都对

had better 是 最好 的意思
这两个词组合在一起当做情态动词,也就是后面直接加动词原形,否定式在better后加not,再加动词原形.
eg（举个例子）：You had better go out for a walk.（你最好出去走走）
You had better go out .你最好不要出去

注意,You had better 可以写为 You'd better
http://wenku.baidu.com/view/82e090d233d4b14e8524686d.html

You had better not do sth.

副词,虽然是特殊用法,不过其实你也可以说,we had finished it better, 这样更容易看出来词性.只是这种写法会有歧义,所以古代人就把它换了个顺序.