中学英语同义词辨析172讲If, whether
中学英语同义词辨析172讲If, whether
172、if, whether
一、if 和whether作连词都可以引导宾语从句,两词常可换用,但if寻常用在白话中并且不跟or not在后方,而whether则常跟or not。比如:
Peter didn't know if (whether) we should write or phone.彼特不晓得我们是写信好照旧打电话好。
He asked me whether I knew Mr. Smith. 他问我对否定识斯密斯教师。
The boy asked the teacher whether it was true or not.那男孩问教师对否是真的。
二、whether可以引导让步状语从句表现“不管”;还可以引导主语、表语从句表现“对否”。但if不克不及引导这三种从句。比如:
Whether he will join the group matters little.他对否到场这个小组干系不大。(主语从句)
Whether my wife agrees or not, I shall do that.不管我妻子对否赞同,我都要做。(让步状语从句)
The question is whether we can do it.成绩是我们对否能做这事。(表语从句)
三、if可以引导条件状语从句。但whether不克不及引导条件状语从句。而if引导条件状语从句又分两种情况:一种是引导真实条件句;另一种是引导假造条件句。比如:
If you see him , give him this note. 你要是见到他,就把这个便条给他。(真实条件句)
If anything had happened, he would have let her know.要是产生了任何情况,他都市让她知晓。(假造句——对已往情况假定)
If I were you, I should go to night school.假如我是你,我就会去上夜校。(假造句——对如今情况假定)
If you arrived in the moon tomorrow, I should give you a sumptuous house. 要是你明天能登上月球,我就送给你一套豪宅。(假造句——对将来情况假定,能完成的约莫性小)
(新来的伙伴:您无碍先点个眷注以便阅读往期文章并接待点赞转发)
声明:本站所有文章资源内容,如无特殊说明或标注,均为采集网络资源。如若本站内容侵犯了原著者的合法权益,可联系本站删除。