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it is difficult ( )(learn)english he often helo me ( )(learn

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it is difficult ( )(learn)english he often helo me ( )(learn)english let me ( )(help)you
please ( )(take)this book to the classroom
thanksfor( )(help)me
it's great( )(have)english every day
( )get to work,he gets up early
can you ( ) (call)him ( )(tell)him ( )(call)me?i wish ( )(answer)his phone,and i'm busy( )(work)now.非谓语动词
it is difficult ( to learn)(learn)english
he often help me ( learning)(learn)english
let me ( help)(help)you
please (take )(take)this book to the classroom
thanks for( helping)(help)me
it's great(to have )(have)english every day
( Getting)get to work,he gets up early
can you (call ) (call)him ( to)(tell)him (to )(call)me?i wish ( to answer)(answer)his phone,and i'm busy(working )(work)now.
再问: 谢了,但是为什么
再答: 基本上都是固定的用法 非谓语动词是指在句子中假如已经有了一个谓语动词,那其它的动词要作某种变形,或变成不定式(to do),或变成分词形式(现在分词或过去分词),具体用什么,要看谓语动词本身或看句子的结构,比如it is difficult to learn english ,这里 to learn English是充当真正的主语,it是形式主语。 主语或宾语,一般都只能用名词性短语来充当,像thanks for helping...,helping这个现在分词结构是充当宾语 Getting to work,he gets up early这个句子里 getting to work 是现在分词短语充当原因状语,意思是:为了上班,他很早就起来了。 但有些词比如:let , have, make,叫使役动词,后面跟的动词是原形,相当于一个省略了to的不定式,这里let me help you就是这个用法