河北省隆化县存瑞中学高中英语 Unit 1 Living well Grammar infinitive 学案 新人教版选修 7Learning objectives:1. Learn the basic rules of the infinitive.2. Learn how to use it.使用说明：提前发学案，让学生根据练习册先预习。上课给出正确答案，难点重点组间合作解决，结局不了的老师点拨讲解，最后进行归纳。1.不定式作主语 不定式作主语，往往用______作形式主语，真正的主语不定式放至句子的后面。 It’s so nice_____ ______ your voice. 听到你的声音真高兴。 It's _________ for you _____ ______ the car when you do not use it. 不用车的时候，锁车是有必要的。 It's very kind of you to help us. ______________________.2.不定式作宾语，大致上有三种情况 1 有些及物动词用不定式作宾语，结构为动词+不定式。常见的动词有afford aim agree arrange ask decide bother care ch oose demand desire determine hope fail help mean manage offer plan pretend refuse tend expect hate intendThe driver failed ____ ___the other car in time. 司机没能及时看见另一辆车。 He offered ______ ______ me. 他表示愿意帮助我。 2 常用句型主语+v + it + adj / n+ to do sth 能用于这一句型的动词有：think find make believe consider feel3 有些动词或动词词组可以用动词+疑问词+不定式的结构作宾语。例如： decide know consider forget learn remember show wonder find out tell inquire Please show us how to do that. _____________________. 3.不定式作宾补.1.有些有动词+宾语+不定式的结构。例如： advise allow cause challenge command drive enable encourage forbid force induce instruct invite like/love order permit make let have want get warn persuade request send tell train urge 例如：Father w ill not allow us to play on the street. The officer ordered his men ______ ________. 长官命令士兵开火。2.表示使役动词 make _______ have 和表示的感官 动词 hear watch see notice observe feel listen to look at 等后用不带 to 的不定式做宾补。不定式用在被动语态使，必须带______....
