初中英语 沪教牛津版 8B U1Grammar：infinitives 课件

1、Grammar: Infinitives深圳外国语学校初中部 王仲怡八下 U1What is “to be”? I like to dance.to sing.to read.to exercise.predicate谓语non-predicate非谓语to + verb (base) = to-infinitiveWhat is “not to be”? 12negative 否定式to do Introduction1How do we use infinitives?1. Three teenagers offered _ (do) some volunteer work.2. Cind

2、y wanted _ (paint) a picture of the park.3. We need _( to help) the children.to doto paintto helpchoose, hope, offer, want, decide, learn, plan, wish, like, hate,begin, agree, help, pretend, promise, forget, remember, etc.Usage 1: Used as object 作宾语verbobjectHow do we use infinitives?1. We taught th

3、e children_ (tell) stories.2. Mark taught the children _ (sing).3. My parents expect me _(go) to an ideal school.to tellto singto go4. My mother lets me _ (play) football after school.5.Have you ever heard him _ (tell) a lie?Special: have, make, let; watch, hear, notice, see playtellUsage 2: Used as

4、 object complement 作宾补bare/zero infinitivesobjectobject complementask decide explain forgetknow tell etc.where how whatwhich who whenverbsquestion wordsto infinitivesto go to do to readto sayto stop etc.e.g. I cant decide what to do next.Usage 1: Used as object 作宾语Usage 2: Used as object complement

5、作宾补 Can you tell me when to stop?How do we use infinitives?1. She came _(collect) her books.2. He bought flowers_ (decorate) his room.3. Jack got up early _ (catch) the first bus.to collectto decorateto catchUsage 3: Used as adverb (of purpose) 作目的状语in order to4. She wore a heavy coat _ (keep) warm.

6、5. She arrived early _ (get) a good seat.in order to keepin order to getWhy?How do we use infinitives?1. _ (talk) with him is a great pleasure.2. _ (learn) a new language is helpful.3. _ (swim) in the sea is dangerous.To talkTo learn1. _a great pleasure _ with him.2. _ helpful _ a new language.3. _

7、dangerous _ in the sea.It is + adj. + to do sth.Usage 4: Used as subject 作主语To swimIt isto talkIt isto learnIt isto swim Summary2321Used as object 作宾语Used as object complement 作宾补Usage 3: Used as adverb (of purpose) 作目的状语Usages of Infinitives4Usage 4: Used as subject 作主语 Exercises3I. Fill in the bla

8、nks with correct forms of the given words.1. He has _ about the history of his country. (plan/write)2. He didnt have enough money, so he _ the bill. (want/Jane/pay)3. We started our journey early _ the traffic. (avoid)4. It is polite _ when you have bothered others. (apologize)5. John always_ on the

9、 sofa. (let/the dog/sleep)planned to writewanted Jane to pay to avoidto apologizelets the dog sleepobjectobject complementadverb of purposeIt is adj. to dolet sb. do (bare infinitive)I. Fill in the blanks with correct forms of the given words.6. We_ outside the cinema at 3p.m. tomorrow. (agree/meet)

10、7. _ me every day, will you? (promise/call)8. They spoke quietly _ the children. (not wake)9. The doctor_ two pills every four hours. (advise/me/take)10. _ the Great Wall is my life-long dream. (visit)agree to meetPromise to call not to wakeadvised me to take To visitobjectobjectadverb of purposeobj

11、ect complementsubjectII. Correct the mistakes in the passage.Mark and his mother decided meetingVivien today. They wanted to helped her in some way. When they arrived, Vivien was very happy. She began talkto Mark about her school. She said, “I like went to school, but I dont have any friends. I feel lonely.”Mark forgot to bringing th