1. let us ,这里的 “us” 指说话者的一方,不包括对方,是请求对方允许自己干某事;
let’s中的’s(=us) ,这里的“us”只能指说话者和听话者双方,不能指说话者一方。
eg: Mom, let us go to the supermarket please.
意思是:妈妈,让我们(我和爸爸)去超市吧
但如果说: Mom, let's go to the supermarket,please.
意思就是:妈妈,让我们(一家三口)去超市吧.
2. Let's 开头的祈使句,后用shall we或shan't we ?
而Let us 开头的祈使句,后用will you或won't you?
eg: Let's go to the school, shall we?
Let us wait for you , will you ?
3.let’s 的否定式有两种:
① let’s + not + V-原形
② Don’t + let’s +V-原形
eg: Don't let's play football.
Let's not play football. 咱们别踢球啦。
下面布置一道习题,看看大家能不能做对?
( )1. It's time for supper now. Let's ______ it.
A. stop having B. stop to have
C. to stop to have D .stopping to have
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