一、详细释义:
conj.
假如,假设,倘若,如果
例句:
You can learn something from anything if you pay attention to it.
处处留心皆学问。
例句:
If I were you, I would never do that.
如果我是你,我决不做那件事。
例句:
If you disagree you should speak out.
如果不同意,你就该大声地说出来。
即使
例句:
This is true even if the problem has gone away by itself.
即使问题已经自行解决了,也真的会出现这些顾虑。
例句:
Sometimes, that standard is quite difficult, if not impossible, to achieve.
有时即便有可能达到那个标准,那也是非常困难。
是否
例句:
I wonder if she is ill.
不知她是否病了。
例句:
I wonder if I might have a word with Mr Abbot?
请问我能否和阿博特先生说几句话?
例句:
She added her name to the list on the noticeboard.
她把自己的名字加在了布告栏上的名单里。
例句:
I have the magazine!
我有这本杂志!
例句:
n.
条件;设想
例句:
There are too many ifs in his offer.
他的提议中条件太多了。
例句:
There are a lot of ifs here.
现在还有很多不确定性。
二、词义辨析:
if,whether
这两个连接词均含“是否”之意。if作“是否”解时,多用于口语,引出宾语从句,不能直接跟or not连用。whether多用于书面语中,可与or或or not连用,除引出宾语从句外,还可引出主语从句、表语从句、同位语从句或与不定式连用。
三、参考例句:
If you agree, so; if not, so.
如果你同意,就这样;如果你不同意,也这样。
What if it rains?
要是下雨怎么办?
What if I overdraw?
如果透支了怎么办?
Correct errors, if any.
有错则改。
What if they're adopted?
说不定他们是被收养的?
It was thoughtless if well-meaning.
用意虽好,考虑欠周。
I wonder if you can.
我想知道是否可以。
Fit transverse strut if necessary.
必要时可安装横向支柱。
If you are hungry, eat.
如果你饿了,那么就请你吃东西。
Even if you don't.
哪怕你根本不想祝他幸福。