初三英语动词知识点:动词不定式的形式 1.作主语。 如: To learn English is very important. 但实际上不定式作主语常用 it来作形式主语,而将不定式移至谓语动词后作真正的主语。 如上句可表达为: It's very important to learn English. 2.作表语。 如: My idea is to ring him up at once. 3.作宾语。 如: I have decided to go to Binjiang Primary School. 4.作宾语补足语。 a. ask, want, teach, tell, know, would like, allow等动词后面接动词不定式作宾语补足语。 如: The policemen asked him to get off the bus. b. hear, see, look at, feel, watch, notice, listen to等动词后接不带to的动词不定式作宾语补足语。 如: We often see Miss Li clean the classroom. c. let, make, have这些使役动词后接不带to的动词不定式作宾语补足语。但在被动语态中这些不带to的都须带上to。 如: In those days the bosses often made the workers work day and night. d.动词help接动词不定式作宾语补足语,可带to也可不带to。 如: Can you help me (to) carry the heavy bag? 5.作定语。 a.与被修饰词有动宾关系。如:I have something important to tell you.但如果不定式动词为不及物动词,后面的介词千万不要省略。 如: Maybe they have three rooms to live in. b.与被修饰词有主谓关系。 如: Mr Liang is always the first to come and the last to leave. (责任编辑:admin) |