英文美句 核心词汇 be supposed to do

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英文美句 核心词汇 be supposed to do

be supposed to do 何意？

英语中ought to，be supposed to do和should 的区别

be supposed to do什么意思？

一、英文美句 核心词汇 be supposed to do

Teachers are supposed to treat all the students alike.

老师应该对所有的学生一视同仁。

【核心词汇】sup‧pose v. / sə'pəʊz /

be supposed to do / be sth

used to say what someone should or should not do, especially because of rules or what someone in authority has said 应该做某事/是某事物

We’re supposed to check out of the hotel by 11 o’clock.我们应该在 11 点之前从酒店退房。

当be supposed to... 的主语是“人” 时，意为“应该…… ”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。

Everyone is supposed to wear a seat-belt in the car.

每个人在汽车里都应该系安全带。

当be supposed to... 的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。

The new laws are supposed to prevent crime.

这些新法令本应该起到防止犯罪的作用。

The train was supposed to arrive half an hour ago.

火车本应在半小时之前到达。

be supposed to后面接“have 过去分词”时，表示“本应该做某事而没做”。

You are supposed to have handed in your homework by now.

现在你应该已经把作业交上来了。

He is supposed to have arrived an hour ago.

他应该一小时前就到了。

He’s watching TV? He’s supposed to be cleaning his room.

他正在看电视? 他应该在收拾自己房间才对啊。

We were supposed to have a chemistry class， but the teacher was out of town for a meeting.

我们本应该上化学课， 但老师出城开会去了。

一、be supposed to do 何意？

be supposed to 的用法
用法一： be supposed to... 其中to是动词不定式符号，不是介词，其后要跟动词原形。当be supposed
to... 的主语是“人” 时，意为“应该……
”；“被期望……”，它可以用来表示劝告、建议、义务、责任等，相当于情态动词should。如：
Everyone is supposed to wear a seat-belt in the car.
每个人在汽车里都应该系安全带。
Teachers are supposed to treat all the students alike.
老师应该对所有的学生一视同仁。
用法：当be supposed to... 的主语是“物”时，它表示“本应；本该”，用于表示“某事本应该发生而没有发生”。如：
The new laws are supposed to prevent crime. 这些新法令本应该起到防止犯罪的作用。
The train was supposed to arrive half an hour ago. 火车本应在半小时之前到达。
用法三： be supposed to后面接“have + 过去分词”时，表示“本应该做某事而没做”。如：
You are supposed to have handed in your homework by now.
现在你应该已经把作业交上来了。
He is supposed to have arrived an hour ago. 他应该一小时前就到了。
用法四： be supposed to... 的否定结构为be not supposed
to...,它常用于口语中，意为“不被许可；不应当”。如：
She was not supposed to be angry about that. 她本不该为那件事而生气的。
You are not supposed to smoke on the bus. 你不应该在公共汽车上吸烟。

二、英语中ought to，be supposed to do和should 的区别

ought to、be supposed to do、should的区别为：意思不同、用法不同、侧重点不同。

一、意思不同

1、ought to：应该，应当，(表示期望或可能发生的事)应该。

2、be supposed to do：应当，应该。

3、should：(常用于纠正别人)应该，应当，(提出或征询建议)该，可以。

二、用法不同

1、ought to：ought常接不定式符号to，用作情态动词表示责任或义务时作“应该”解，表示劝告或推荐时作“应当”解，表示推论时作“可能会”解，但都不及must语气强烈。其否定形式为oughtnot to，也可缩写成oughtn't to。

2、be supposed to do：suppose的基本意思是指在证据不全、情况未确定时所作的猜想。可指缺乏确切的事实但可根据一些现象来推测，也可指提出合乎逻辑推理的假设来论证某事，还可指委婉地提出建议。

3、should：用于陈述语气，构成第一人称过去将来时、过去将来完成时以及过去将来进行时。用于主句中构成虚拟语气，should+动词不定式的原形，表示虚拟结果时指现在，表示推测结果时指将来。

三、侧重点不同

1、ought to：直接接动词原形，更多反映客观情况。

2、be supposed to do：表示根据规定或传统习惯人们不得不做的事。

3、should：表示主观看法，一些建议。

三、be supposed to do什么意思？

be
supposed
to
do
[英][bi:
səˈpəʊzd
tu:
du:][美][bi
səˈpozd
tu
du]
应当，应该;
以上结果来自金山词霸
例句:
1.
what
else
was
i
supposed
to
do
today?
我今天打算去弄点什么来着？
.
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