The child can't be a boy.It has long hair.以上的句子为什么要用can't can 不是表能力么?2.My parents always have me to do the things i like.为什么以上的句子要用have?

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The child can't be a boy.It has long hair.以上的句子为什么要用can't can 不是表能力么?2.My parents always have me to do the things i like.为什么以上的句子要用have?

The child can't be a boy.It has long hair.以上的句子为什么要用can't can 不是表能力么?2.My parents always have me to do the things i like.为什么以上的句子要用have?
The child can't be a boy.It has long hair.
以上的句子为什么要用can't
can 不是表能力么?
2.My parents always have me to do the things i like.
为什么以上的句子要用have?

The child can't be a boy.It has long hair.以上的句子为什么要用can't can 不是表能力么?2.My parents always have me to do the things i like.为什么以上的句子要用have?
1.can't在这里表示否定的推测,就像是对现在肯定的推测用must do,对过去肯定的推测用must have done,对现在进行的推测用must be doing,这是规定用法
2.have sb do sth
have sb doing sth
have sth/sb done,应该只有这三个句型,应该没有have sb to do这种吧,在下才疏学浅,还望指教,看看别人能不能解释一下~

这里的CAN与HAVE都是助动词

1。 这里CAN’T 是表示判断,不可能是。
2。 HAVE相当于我们常说的叫,让, 使某人做某事的意思。

这里can't be的意思是”不可能是”
有种表示推测的意思
”那孩子不可能是个男孩!他留着长头发.”
have sb. to do sth.
是”让某人做某事”
”我的父母总让我做我喜欢做的事.”
to 一般都省略的

1,can 除了表能力以外,也有在这里表示猜测.
--下面附上金山词霸对can的解释:
can
can 1
AHD:[k²n] [k…n ] 非重读时
D.J.[k#n][k*n ]非重读时
K.K.[k#n][k*n ]非重读时
v.aux.(助动词)
过去式 could[k‹d]
Used to...

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1,can 除了表能力以外,也有在这里表示猜测.
--下面附上金山词霸对can的解释:
can
can 1
AHD:[k²n] [k…n ] 非重读时
D.J.[k#n][k*n ]非重读时
K.K.[k#n][k*n ]非重读时
v.aux.(助动词)
过去式 could[k‹d]
Used to indicate physical or mental ability:
能,会:用于表示身体或精神上的能力:
I can carry both suitcases. Can you remember the war?
我可以搬动两个箱子。你还能记得那场战争吗
Used to indicate possession of a specified power, right, or privilege:
拥有权利:用于表示拥有某种特殊权力、权利或特权,:
The President can veto congressional bills.
总统有权否决国会提案
Used to indicate possession of a specified capability or skill:
能力:用于表示具有某种能力或技能:
I can tune the harpsichord as well as play it.
我会弹奏大键琴,同样地,我也会给大键琴调音
Used to indicate possibility or probability:
可能:用于表示可能性或者或必然性:
I wonder if my long lost neighbor can still be alive. Such things can and do happen.
我怀疑我失踪已久的邻居是否还有可能活着。这样的事情可能而且确实发生了
Used to indicate that which is permitted, as by conscience or feelings:
允许:用于表示在意识和情感上得到允许的东西:
One can hardly blame you for being upset.
没有人会因为你受挫而责怪你
Used to indicate probability or possibility under the specified circumstances:
可能性:用于表示在特殊情形下的可能性或者可能的事:
They can hardly have intended to do that.
他们几乎不可能愿意做那事
Usage Problem Used to request or grant permission:
【用法疑难】 会:用于请求或给予允许:
Can I be excused?
我会得到原谅吗.
2,have sb. do sth
在这里表示让某人做什么事.
没有have sb. to do sth 这种用法.
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否定推测就要用can't be
肯定推测用should be
背下来吧

can't be----不可能
This can't be true.这不可能是真的.
have sb do sth让某人做某事.
I will have my sister cleaned up the room.让我妹妹把房间收拾一下.
I will have my friend checked on my computer. 我让我朋友帮我检查一下我的电脑.

(1)教你一个非常简单的判断方法:
情态动词和be连用一般表示猜测
can't be 不可能eg.The child can't be a boy这小孩不可能是男孩
may be或许/大概eg,he may be in the room他可能 在房间里
must be一定he must be a teacher他一定是个教师
(2)我母亲常让我做一些我喜欢做...

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(1)教你一个非常简单的判断方法:
情态动词和be连用一般表示猜测
can't be 不可能eg.The child can't be a boy这小孩不可能是男孩
may be或许/大概eg,he may be in the room他可能 在房间里
must be一定he must be a teacher他一定是个教师
(2)我母亲常让我做一些我喜欢做的事have sb do sth(让/使某人敢谋事)(你的原句可能有错,应该去掉to)

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can不仅可以表能力也可:(表示可能性)可能,可能会
have sb. to do something 是使动语态,翻译成让某人做某事

the child of three years old doesn't know there___(be)seven days in a week 1.Please c_____ the table with a cloth2.I'm really a______,becacse I can't find my backpack.3.I hope to pass the f______ exam at the end of the year.4.Don't be w______ about your son .He isn't a child any more.5.Mr Green is the o______ of the house.6 i didn't break the window.It __ the truth.He is lying.can't be mustn't be shouldn't isn't 选哪个A.can't be B.mustn't be C.shouldn't be D.isn't The story ________ be true.A.can B.can't C.may not D.mustn't The child can't be a boy.It has long hair.以上的句子为什么要用can't can 不是表能力么?2.My parents always have me to do the things i like.为什么以上的句子要用have? The child can count from one to a h____. Can you hear a child _____ (try) in the room? 根据首字母填单词1.don't be s_____,boy you can't do such a thing in this way2.the bad man s_____ at the policewoman yesterday afternoon.now,she is in hospital3.sa soon as the child saw the big dog ,he h_____ himself behind his mother4.look at you shouldn't leave a child alone in the house don't touch a child on还是in the head she took the old man to____(safe).按适当形式填空.that man()be her son.he left for shanghai this morning.A.can't B.mustn't C.needn't D.aren'tthe Chinese population is over1.3billion.yes,si each pair of parents in many places()only()one child.A. The family is p____ and the child can't go to school Can't you hear the child _(cry) in the house I think a dog is a good p____ for a six-year-old child.p____ the future can be diffcult.He had to work in a building-field to make a l________People's moods are i_____ by weather.Our cars are s_________ to yours,only in collor.I don't like the book b 56.What () are you planning to buy A.make of car B.make of the car C.make of a car D.make of cars57.() ,you can’t fool her A.The child though Rowena is B.Though child Rowena is C.As child Rowena is D.Child as Rowena is58.What’s () is to get infor How can you be a good child假如你要接受一家英文报社的采访,记者提出How can be a good child写应答稿 作文 Hoe can you be a good child?字数70-80,题目应该是How can you be a good child 的回答。 It is terrible if a plane ( ) when flying in the skyA can't controlB can't be controlledC needn't controlD needn't be controlled