Question

急求各位英语高手帮我解答一下这几句英语

do you want to speak to her?I want her to come to my office.tell her to come at once.这些英语中的to到底所起的作用是什么啊！我在书上看见的解释是说：“动词原形前加to在英文中被称为动词不定式。动词不定式作宾语。各位帮我解答下，千万不要去复制啊！我看不懂，用你们学的知识帮我解释下。最好能看的懂，朋友们辛苦你们了。

Answer 1

want to do sth , speak to sb , want sb to do sth, come to ,tell sb to do sth ,记住这几个短语就可以了

Answer 2

这里主要是不定式作宾语的应用
want to:动词want后面接不定式to do,构成词组want to do （想要做某事），可写作want sb. to do sth.
come to my office: come是不及物动词，后面接宾语是需加to,即不定式作宾语。
Tell her to come:这里使用了短语tell sb. to do sth. tell是及物动词，可接双宾语，her是第一个宾语，to do 是第二个宾语

Answer 3

to speak动词不定式作宾语。 to her, to my office介词，表方向。
to come 动词不定式作补语。