whether和if的区别 whether双语例句

时间:2022-10-05 17:06

  一、含义不同

  1、whether是否;不管;无论。

  2、if如果;即使;每当;条件;设想。

  二、用法不同

  1、whether

  whether用作连词,意思是“是否,是不是”,可引导名词从句或动词不定式短语。

  whether还可引导让步状语从句,意思是“不管,无论”,从句中通常用一般现代时代替将来时。

  I'm uncertain whether to go or not.

  我不能肯定去还是不去。

whether和if的区别 whether双语例句

  2、if

  if引导条件状语从句,从句可为真实条件从句,也可为虚拟条件从句。如为真实条件从句,谓语用陈述语气,表示可能性很大,作“假使”“如果”解,通常用一般现在时代替一般将来时;如果if从句中用will,表示意愿。

  从句如为虚拟条件从句,谓语动词要用虚拟语气,表示可能性不大或与过去事实相反,作“要是,假如”解。可指过去的情况,也可指现在和将来的情况。指将来情况时可用were to或should。

  I can give you a round neckline if you prefer.

  如果您喜欢我可以给您开个圆领口。

  三、侧重点不同

  1、whether

  意思是“假使,如果”时,whether从句单纯表示事实;whether可以用在介词之后的间接疑问句中;whether可以用在“to+动词原形”的前面;whether可以引导主语、表语从句。

  意思是“是否”时,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。

  2、if

  意思是“假使,如果”时,if从句可以表示希望;if不能用在介词之后的间接疑问句中;if不能用在“to+动词原形”的前面;if不能引导主语、表语从句。

  意思是“是否”时,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双语例句

  Whether we need more food depends on how many people turn up.

  我们是否需要更多的食物,这要视到场人数而定。

  I asked whether they could change my ticket.

  我问他们是否可以给我换票。

  I'm not sure whether I should tell you this.

  我拿不准该不该把这事告诉你。

  She asked her boss whether she could have the day off.

  她问老板可不可以让她请一天假。

  You've got to go to school,whether you like it or not.

  不管你喜欢不喜欢,你得上学。

  It's doubtful whether the car will last another year.

  这辆汽车未必还能用上一年。

  It remains to be seen whether his project will fly.

  他的计划能否成功尚需拭目以待。

  We can try that─but whether it'll work is another matter.

  我们可以试试看——但行不行则是另一回事。

  They are pondering whether the money could be better used elsewhere.

  他们正在斟酌能否把钱花到其他更适当的地方。

  We don't know whether he's alive or dead.

  我们不知道他是死是活。

  You'll have to choose whether to buy it or not.

  买还是不买,你得作出选择。

  I was wondering whether you'd like to come to a party.

  不知您能否来参加聚会。

  It's pot luck whether you get good advice or not.

  能不能得到好的指点那就全靠运气了。

  It makes no odds to me whether you go or stay.

  你的去留与我无关。

  It is questionable whether this is a good way of solving the problem.

  这未必是一个解决问题的好办法。

  Your lawyer can advise you whether to take any action.

  你的律师可以告诉你是否起诉。

  A number of factors decide whether a movie will be successful or not.

  一部电影成功与否是由许多因素决定的。

  Indicate whether the following statements are true or false.

  标出下列说法是对还是错。

  What is at issue is whether she was responsible for her actions.

  议论的焦点是她是否应对自己的行为负责任。

  Whether he will continue to be successful in future is open to doubt.

  他今后能否继续获得成功值得怀疑。

  if双语例句

  I could do it now,if you like.

  如果你愿意的话,我现在就可以做这事。

  You can come with us if you want to.

  如果你愿意可以跟我们一起来。

  Only time will tell if the treatment has been successful.

  只有时间才能证明这种疗法是否成功。

  He must be 70 if he's a day!

  他至少70岁了!

  If you need anything,I am at your service.

  您要是需要什么,请尽管吩咐。

  Let me know if you have any problems.

  你若有困难就告诉我。

  I don't care if I never see him again!

  即使我永远再也见不到他,我也不在乎!

  If that's what you think,you're way off base.

  你如果那么想就全错了。

  I went to see if my old school was still there.

  我去看过母校是否依然存在。

  If you should change your mind,do let me know.

  假如你改变主意的话,一定要告诉我。

  Come and get me if you think you're hard enough.

  你要是觉得自己有种,就冲着我来吧。

  What difference will it make if he knows or not?

  他知不知道有什么关系吗?

  You can come too,if you want.

  如果你想来也可以来。

  If you have any issues,please call this number.

  如有问题,请拨打这个电话号码。

  I just wanted to know if everything was all right.

  我只是想知道是否一切都好。

  She asked me if I would give her English lessons.

  她问我愿不愿意给她上英语课。

  Perhaps it would be better if you came back tomorrow.

  如果你明天回来,也许更好。

  I'll get there,even if I have to walk.

  我就是走也要走到那儿去。

  If he can't help,there's always John.

  如果他帮不上忙,总还有约翰呢。

  If they offer me the job,I'll take it.

  如果他们给我这份工作,我就接受。

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