Whether he agrees or not,I shall do that. 不管他同意与否我都要做这事。
(4) whether可以引导主语从句、表语从句、同位语从句,接不定式.或接or not等(if则不能)
Whether he will come or not is unknown. 还不知道他来不来。(主语从句)
The question is whether it is worth doing. 问题是这件事是否值得去做
I have no idea whether he is there. 我不知道他是否在那里(同位语从句)
I don‘t know whether he will do it or not. 我不知道他是否会做这事。(接or not)
She hasn‘t decided whether to go or not,她还没有决定去还是不去。(接不定式)
六、知识*能力聚焦
1. by prep.
(1)表示“相差”,指增加或减少的程度
The water level of the lake was going to rise by 63 metres.湖里的水位要升高63米
We defeated the opposing team by 3 runs (by a score of 5 to 2 ).我们以3分的优势(5比2)击败对方
(2)表示单位,“以……计、依据”( by后面的名词之前通常一要加定冠词)
I‘m paid by the hour.我是按时计酬的
Is this cloth sold by the metre?‘这块布是按米出售的吗?
We can buy the eggs by the dozen.我们可以按打买鸡蛋
(3)by还可用于表达其他意义.
There is a tree by the water.水边有棵树(指离水近)
They are coming by the highway.他们正沿公路而来
I took your pen by mistake.我错拿了你的钢笔
The pool is 15 meters by 50 meters.这个游泳池长50米,宽15米、
Keep close by,or you will get lost.跟近一点,否则你会迷路的
What time is it by your watch?你的表几点了?
Have you read any books by Lu Xun?你读过鲁迅写的书吗?
The children went in two by two.孩子们两个两个地进来了