In the town there were even three good people, and they did not want this crime, not even for the sake of the interest and the great commotion it would entail; it gave them no pleasure to think of Miss Amelia holding to the bars of the penitentiary and being electrocuted in Atlanta. T...
从句：If + 主语 + had + 过去分词 主句：主语 + should/would/could/might+动词原形 e.g.: If ...
if或whether不充当成分,只起连接作用,不可省. 区别：whether可以引导介词后的宾语从句,if不可以. I worry about whether I hurt her feeling. I wonder if/whether he can e tomorrow.
if和whether的用法区别口诀：在引导主语从句时，一般用whether，而不用if。在引导宾语从句时，一般情况下whether和if可以通用。从句中含有or，强调选择，这里只宜用whether；宾语从句中包括一个if从句，则宜用whether）等。if与whether用法的细致区别：1、在引导主语从句、表语从句、同位语从句时一般用whether...
if+would like/care可以用来代替if+want/wish,而且比后者有礼貌: If you would like to come I’ll get a ticket for you. 如果你想来,我就给你弄一张票。 If you’d care to see the photographs I’ll bring them round 如果你有兴趣看那些照片,我就带来。
在第一个句子当中,if引导的是宾语从句. 它的主句I want to know是一般现在时,根据规则,从句要根据实际情况选择相应的时态. 从句当中有时间状语tomorrow,所以要用一般将来时,故填will come.在后边的两个句子当中,if引导的是条件状语从句. 后边的句子是主句. 这两个动作都发生在将来,但据根据语法规则主句要用一般...
if＋would like/care 可以⽤来代替 if＋want/wish，⽽且⽐后者有礼貌： If you would like to come I’ll get a ticket for you． 如果你想来，我就给你弄⼀张票。 If you’d care to see the photographs I’ll bring them round 如果你有兴趣看那些照⽚，我就带来。 If ...
I want to know whether/if he lives there. 2.whether和if都可用it作形式主语从句中。如: it's uncertain whether/if he'll e this evening. 3.在be uncertain/doubtful之后,常用whether引导宾语从句,有时也可以用if,如: We are uncertain whether/if Mary will e. 二、不同之处。 1.whether可置于句...
1、是否需要陈述句 if引导的条件句通常是陈述句，而whether引导的条件句通常是一种疑问句或者名词性从句。具体来说，if后面的句子通常是陈述句，而whether后面的句子通常是一种疑问句或者名词性从句。例句：- I don't know if he is coming to the party.（我不知道他是否会来参加派对。）- She ...
由if 或whether 引导宾语从句。if 和whether 在句中意思是“是否”。如:I want to know if (whether) he lives the