Unit 1 Lesson 1 Lifestyles 语法动词不定式 高中英语北师大版（2019）必修第一册.pptxVIP

The Infinitive(2)动词不定式定义结构用法（1）动词不定式是非谓语动词的一种，它没有 和 的变化，在句子中不能独立作 ，可在句中用做多种 。作主语：句首it作形式主语for sb/of sb作表语：说明主语实义动词 do肯定结构： 否定结构： to do(动词原形）人称数谓语not to do句子成分动词不定式用法（2）He likes English.We saw him out.主谓宾 主宾补谓宾动词不定式作宾语03动词不定式作宾语补足语0403 动词不定式作宾语动词不定式位于谓语动词(及物动词)之后，作动词的宾语，表明意图、计划、希望或决定。 eg.We hope to get there before dark. The girl decided to do it herself. 那么，哪些动词能接不定式作宾语呢？03决心学会有希望(decide, determine, learn, wish, hope)准备设法来帮忙(prepare,try, manage,help)同意计划莫假装(agree,plan,pretend)短语：would like忘记拒绝会失败(forget, refuse, fail)提供请求负担起(offer, beg, demand,afford)答应安排理应当(promise, arrange, be supposed)03 1.We would like (go) to Beijing tomorrow. 2. The?driver?failed? (see)?the?other?car?in?time.?3.I?decided? (go)?to?the?countryside?on?vacation.4.(2009)Tom started (collect)?stamps when he was five. 5.(2011)The boy tried (jump) over the fence(栅栏).6. John doesn’t ________________(想放弃) his study.03 动词不定式作宾语作宾语的不定式如果带有自己的补足语时，则须用it作形式宾语，而将不定式置于补足语之后。常用句型:sb. think / find /feel/believe/make/consider+ it+ adj./n + to do eg.I feel it honour to be invited. 能受到邀请我感到很荣幸。 I found it difficult to make her stop crying. 我发现要让她停止哭很难的。 真正宾语形式宾语03 考题链接1.他认为学英语是有用的。He thinks . 2.我发现学习一门语言很难。I find .3.I feel it my duty (do) so.4.I?think?it?impossible? (finish)?all?the?work?in?a?day. it useful to learn English it difficult to learn a language03 动词不定式作宾语不定式一般不作介词的宾语，但可作介词but, expect的宾语，并且当前面有动词do时，不定式的to要省略。eg. 我们只能更加努力学习。 We have no choice but (study) harder. =We can do nothing but (study) harder. Now we can’t do nothing but (wait) for him. 04 动词不定式作宾语补足语有些动词后面能接不定式作宾语补足语 ：ask, allow, advise, encourage, order, permit, teach, tell, want, wish, call on, wait for等。ask sb. to do sth. eg.The teacher told us to do Exercise 1. My mother doesn’t allow me to go out alone at night. The doctor advised her not to eat too much sugar. I wish you to go to the meeting with me. She asked me to stay here. 04 考题链接1.?Last?week?our?geography?teacher?told?us?______?more?information?about?how?to?protect?th