初中英语非谓语动词教案
Non-finite Verbs（非谓语动词）
Teaching aims:
1. Ask the class to learn more about the Non-finite Verbs.
2. Help the class use the Non-finite Verbs freely and correctly.
Key and difficulties:
1.The tenses and voices of the Non-finite Verbs.
2.The on-finite Verbs used as Subject, Object, Attribute, Adverbial, Object
complement ect.
3.The differences between the infinitive, the Past Participle and the Present
Participle.
Teaching Methods:
1.Explain the basic uses of the Non-finite Verbs.
2.Emphasize the important and difficult points.
3.Practice.
Teaching aids: A computer and a blackboard.
Teaching Procedures:
Step 1.Lead- in
I want to go to the park (want 是谓语，to go 是非谓语)
Step 2. Explain the tenses and voices of the Non-finite Verbs.
Step 3. Explain the basic uses of the Non-finite Verbs.
不定式
1．构成：to＋动词原形，即：to do形式。
其否定形式为：not to do。
如：The teacher tells me to finish my homework after school.
老师告诉我放学后完成我的家庭作业。
2．动词不定式具有名词、形容词和副词的特征，因此在句中可以作主语、表语、宾语、宾语补足语、定语和状语。
❶作主语
To help the old is our duty.帮助老人是我们的职责。
注意：动词不定式作主语时，为了保持句子的平衡，往往用it作形式主语，而把不定式短语置于谓语动词之后。
①“It's＋adj.＋of sb.＋不定式”表示“某人(做某事)……”。
这
一句型中常用表示性质、品格的形容词如：It's kind of you to help me.
你帮了我，你真好。
②“It's＋adj.＋for sb.＋不定式”表示“做某事对某人来说……”。
如：It's dangerous for you to climb that tall tree.
对你来说，爬上那个高树是危险的。
❷作表语To eat is to live，but to live is not to eat.
吃饭是为了活着，但活着并不是为了吃饭。
❸作宾语，常接不定式作宾语的动词有：decide(决定)，expect(期望)，forget(忘记)，hope(希望)，pretend(假装)，try(尽力)等。
如：
I want to borrow your bike.我想借你的自行车。
❹作宾语补足语，常接不定式作宾语补足语的动词有：ask(要求)，tell(告诉)，want(想要)，teach(教)，wish(希望)，help(帮助)，warn(警告)，invite(邀
请)，encourage(鼓励)等。
如：
She asked me to answer the phone while she was out.
当她出去的时候，她叫我接电话。
❺作定语动词不定式作定语时，常置于被修饰名词之后作后置定语，且被修饰的名词与不定式的动词有动宾关系或介宾关系。
如：
He wants some water to drink.他想要些水喝。
(动宾)
He has no friends to talk with.他没有可以与之交谈的朋友。
(介宾) 注意：①当不定式修饰的名词是time，place或way时，不定式后的介词习惯省去。
如：He had no place to live(in)．他没地方住。
②有些名词常用不定式作定语。
如：
a chance to go to school上学的机会
no time to think about rest没时间考虑休息
a way to learn(of learning)English学习英语的一种方法
❻作状语They ran over to welcome us.(表目的) 他们跑过来欢迎我们。
Paul is too excited to say anything.(表结果) 保罗激动得说不出话来。
I'm sorry to trouble you.(表原因) 很抱歉打扰你。
注意：有些动词不定式在使用时，要省去to。
具体有：
①在动词let，feel，see，look at，watch，have，make，notice，hear等
动词后，动词不定式作宾语时，要省略to。
但在变被动语态时，省略的to要加上。
如：I heard someone knock at the door.我听到有人在敲门。
②在would you please，had better，why not，would rather等结构的句型
后，要用不带to的不定式。
如：You'd better go to bed early.
3．特殊疑问词＋动词不定式(why 除外)如：
I don't know what to do.我不知该做什么。
动名词：动名词具有名词的性质，在句中可以作主语、表语、宾语、定语等。
如：Saying so much is useless.说那么多没用处。
(主语)
My greatest pleasure is traveling.我最大的乐趣是旅游。
(表语)
She enjoys going to the cinema.她喜爱看电影。
(宾语)
There is a swimming pool here.这儿有一个游泳池。
(定语)
注意：(1)初中阶段常见的接动名词的动词或动词短语有：enjoy(喜欢)，finish(完成)，keep(保持)，practice(练习)，mind(介意)，suggest(建议)，be busy(忙于)；be worth(值得)，can't help(禁不住)，give up(放弃)，be used to(习惯于)，stop/prevent/keep…from(阻止)，look forward to(盼望)；feel like(想要)；be good at(擅长)；be interested in(对……感兴趣)；
succeed in(成功)等。
(2)有些动词既可接不定式也可接动名词形式作宾语，但表达的意思不同。
①stop doing sth.停止做某事stop to do sth.停下来去做某事
②try doing sth.尝试做某事try to do sth.尽力去做某事
③forget doing sth.忘了做过某事forget to do sth.忘了要做某事（未做）
④remember doing sth.记得做过某事
remember to do sth.记得要做某事（未做）
⑤need doing sth.需要做某事（被动含义）
need to do sth.需要去做某事（主动含义）
【例】Isn't it strange that the cat is used to______(lie)beside the dog peacefully? 答案：lying
【例】It is worth______(mention)that Nanjing has entered Top 10 Appealing Chinese Cities. 答案：mentioning
【例】Would you mind______(turn) down the music？The baby is sleeping.
答案：turning
分词：To know the differences between the infinitive, the Past Participle and the Present Participle.
Step 4. Practice.
Step 5. Summary and Homework
Blackboard Design(optional).。
