how come,what for,what if区别

题目

how come,what for,what if区别
语序,意思,同义句,的不同

答案

how come
adv.
为什么...为何...什么原因使得...
常用短语
how come+主语+动词+...
how come+主语+动词...=why+倒装句?
上述例句相当于：
Why didn't you come to join us last night?
Why do you eat so little?
该解释由词友chengziao提供,仅供参考.免责声明
与 how come 相关的例句How come?
为什么?为什么这么说?
How did he come?
他是怎么样来的?
How far I've come!
我走得好远啊!
How come are you late?
你为什么来晚了?
How come you start again?
你怎么又抽起来了?
How did it come about?
那事是怎么发生的?
How did it come out?
结果如何呢?
How did things come out?
事情的结果如何?
How does it come out?
结果如何呢?
How often does it come?
车子多久一班?
what for
1.为什么,为何目的
2.哪一种?
What for tobacco are you smoking?
你抽哪一种烟?
3.(非正式)惩罚,责备
I'll give you what for if you don't tidy your room.
要是你不整理好你的房间,我会责骂你的.
I'll give her what for if she does that again.
她要是再这样干我就收拾她.
What if
要是…又怎样；如果...将会怎么样；如果...又怎样.
1.What if it is true?
如果这是真的又该如何呢?
2.What if he doesn't agree?
如果他不同意该怎么办呢?
3.What if he comes back now?
如果他现在回来怎么办?
4.（1）如果…该怎么办呢?
例如：What if you should fail?coldplay - what if　假如你失败了该怎么办呢?
可以把此句加以补充为What would happen if…?
假如他失败了又有什么关系?
（2）如果…又有什么关系?
（=What though ）
例如：What if I fail!
即使我失败了又怎样!
可把此句补充为What （does it matter）if…?