need与can,with与to?

来源：学生作业帮编辑：神马作文网作业帮分类：英语作业时间：2024/11/12 18:18:16

need与can,with与to?
Then we need you to help with sports for English-speaking students
和She can help to teach those English-speaking studens.
中的第一句you to help 能不能换成your help,为什么加to呢,原因?to后是不是只加动词,
to后是不是只加名词,第二句中的teach those English-speaking studens能不能换成teach with those English-speaking studens?
need后是不是不能直接加动词?

介词什么的简直是一团浆糊啊……有些麻烦,路过了答一答吧……

1.Then we need you to help with sports for English-speaking students.
在这句中,need you to help的help是动词意义的帮助,需要你帮助.换成your help 不好.help作名词后面不跟介词with.此处to help中的to 不是介词,是动词不定式符号,to没有实际意义,只是后面接动词原形而已.也就是说to do就是动词不定式.need sb to do 可作为一个固定短语来记忆,就是需要某人干某事.
to 的别的用法就是作介词,作介词时后面可加名词,代词等,例如 go to Shanghai,come to school,go to the park.
2.She can help to teach those English-speaking students.
此处的teach 是个及物动词,后面加宾语,如teach English,也可接双宾语,也就是两个宾语,如teach us English.teach 后面不能加介词with.
3.need用作实意动词时后面加to do,不能接动词原形.但need用作情态动词时和must用法一样后面直接加动词原形,但这时候need主要用于问句和否定句子.例如：Need I go home now?.No ,you needn't.
4.常见的介词是at,in,of,to,under,over等等.

need与can,with与to? need sth与need to do sth may与can与must与need的用法英语翻译Everyone can identify with the need to fit in. 什么时候用need do 什么时候用need to do?,比如need buy 与need to buy can you help me to play basketball 与can you help me with pla 请问 need to do 与need do 的具体用法 need 与need to有什么区别啊 need to与need of分别怎么用 Need not to do 与 need not do 的区别 coincident to 与with 比较 attach to 与 match with