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2024年1月28日发(作者:程序设计语言也叫编程语言对不对)
be supposed to 的用法
suppose如何用
suppose的基本意思是“猜想;以为;假定”,但在具体的语言环境中意义不止于此,其用法如下:
1. suppose + that 从句,表示“猜测;假定”。如:
I suppose that you are right. 我想你是对的。
You can suppose that A equals B. 你可以假定A等于B。
2. suppose +名词 / 代词 + ,表示“认为„„是„„”。如:
Many people suppose him to be over 50. 许多人认为他已经50多岁了。
3. suppose用于祈使句中,表示“让„„”。如:
Suppose we go for a swim. (= Let's go for a
swim.) 让我们去游泳吧。
be supposed to 的用法
用法一: be 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 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。
用法二:当be 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 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。
suppose的其他用法:
1.suppose + that 引导的宾语从句“假设,猜想,以为”。例如:
Let's suppose that you had a million dollars, how would
you spend it?
假如你有一百万美元,你怎么花呢?
I suppose that she'll be there today.
我想她今天能到那里。
I had supposed he had died years ago.
我原以为他几年前就去世了。
2. 当suppose + that 引导的宾从变为否定句时,否定应前移,有此种用法的词有think, believe, guess(猜想)等。例如:
I suppose that she will come to your party.
→ I don't suppose that she will come to your party.
我猜她不会来参加你的晚会。
I suppose that he will agree with you.
→ I suppose that he will agree with you.
3. 在表示同意或不同意别人的观点时,常用“I suppose so/ I
don't suppose so”。
--- Will he be back this weekend?
他周末会回来吗?
--- Yes, I suppose so.
我想他会回来。
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