外研版八年级英语语法专题：动词不定式知识介绍.ppt

语法：动词不定式 to do 请看课本P128 ; 一，不定式做宾语补足语 It allows people to get closer to them. 主 谓语 宾语 宾语补足语 它允许人们更近距离地接触大熊猫。 allow sb. to do sth “允许某人做某事” 宾语补足语：补充说明宾语！ ; 一，不定式做宾语补足语 ask sb. to do sth 请求某人做某事 need sb. to do sth 需要某人做某事 want sb. to do sth 想要某人做某事 tell sb. to do sth 告诉某人做某事 Mum asked me to help her with the dishes. 妈妈让我帮她洗餐具。 ; 一，不定式做宾语补足语 的 否定形式：not to do 课本例句： Mr. Han told us not to make too much noise. ; 一，不定式做宾语补足语 必须省略to 的情况： 使役动词：make, let, have等 I will have Tom show you around school. 让，差使 感官动词：hear, feel, see等 We heard him sing/singing in the room. sing: 唱歌全过程 singsing:正在唱歌。 其他感官动词用法类似; 二，不定式做定语 I want something to eat. 我想要吃的东西。 课本p42, Many wild animals don’t have a safe place to live. 没有住的地方。 ; 三，不定式做目的状语 Tom trained hard to improve his basketball skills. =To improve his basketball skills, Tom trained hard. 简单理解！！！to 表示目的