what和how的区别比如这句 He did not know what he could do about it because it was too heavy for him to lift alone,为什么要用what啊?在这样的句型中what和how有什么区别啊?遇到这样又怎么来选啊?我不太明白啊~o(╯

what和how的区别比如这句 He did not know what he could do about it because it was too heavy for him to lift alone,为什么要用what啊?在这样的句型中what和how有什么区别啊?遇到这样又怎么来选啊?我不太明白啊~o(╯
what和how的区别
比如这句 He did not know what he could do about it because it was too heavy for him to lift alone,为什么要用what啊?在这样的句型中what和how有什么区别啊?遇到这样又怎么来选啊?我不太明白啊~o(╯□╰)o

what和how的区别比如这句 He did not know what he could do about it because it was too heavy for him to lift alone,为什么要用what啊?在这样的句型中what和how有什么区别啊?遇到这样又怎么来选啊?我不太明白啊~o(╯
在英语中,how是个疑问副词,what是个疑问代词.在它们引起的句式中,有时可以互相换用,来表达相同或相似的意思.
一、问天气：How…?=What…like?如：
How was the weather yesterday?昨天的天气怎么样?
What was the weather like yesterday?
二、征求意见或建议：How about…?=What about…?如：
How about going skating?
What about going skating?去滑冰怎么样?
三、问年龄：How old…?=What…the age…?你多大岁数了?
四、问看法：How…like…?=What…think of/about…?如：
How do you like this film?你认为这部影片怎么样?
What do you think of this film?
五、问价钱：How much…?=What…the price 价钱）of…?如：
How much is the book?
What’s the price of the book?这书多少钱?
六、“how／what+可数名词单数”构成感叹句：How + adj.+ a/ an+ n…!=What + a/an +adj.
+n.…!如：
How clever a girl she is!她是个多么聪明的女孩子啊!
What a clever girl she is!
七、“how/what+可数名词复数或不可数名词”构成感叹句,句子结构有所不同,汉语意思也稍有差异.如：
How high the mountains are!这些山多高啊!
What high mountains they are!多高的山啊!
当然,有些由how引起的感叹句是不能用what进行转换的,如下列句子中的how不宜换用what.
How fast he is running!他跑得多快啊!
How time flies!光阴似箭!

He did not know （what he could do about it） because it was too heavy for him to lift alone。
do是及物动词，一定要跟宾语的，意思是他不知道要做什么，所以用what提问do的宾语名词。
如果是用how的话，how不能用来提问宾语，所以必须是在do后面有名词的情况下使用，譬如说 He did n...

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He did not know （what he could do about it） because it was too heavy for him to lift alone。
do是及物动词，一定要跟宾语的，意思是他不知道要做什么，所以用what提问do的宾语名词。
如果是用how的话，how不能用来提问宾语，所以必须是在do后面有名词的情况下使用，譬如说 He did not know how he could lift it alone because it was too heavy.句中lift就是动词do，宾语是it，所以用how提问

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语意需要，他不知道他能作什么，因为搬不动。如果用HOW的话，how是副词，应该是how he could do it

what的本意是什么 也就是名词 而how的本意是怎么 怎样 相当于副词
可以说 do what how to deal with it

一般看do后面有没有直接跟宾语
这句里面do后面要加个about再加宾语，所以用what.
如果没有about就用how
一般的结构是what to do//how to do it