-
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<
/p>
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<
/p>
A
等于
B
。
p>
2.
suppose
+
名词
/
代词
+ to
be...
,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
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。
用法二:
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<
/p>
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
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