動(dòng)詞不定式》ppt課件

1、動(dòng)詞不定式,肯定： to + V.原 或者 (to)+ V.原 否定：not/never + (to) + V.原,He likes to read novels. I saw him come. We decided not to buy that house.4) It is interesting to fly a kite. 5) Please let him not go there.,,,,,,動(dòng)詞

2、不定式的結(jié)構(gòu),作主語,To hear your voice is so nice.To study hard is very important.,,It is so nice to hear your voice.,,It is very important to study hard.,不定式作主語時(shí)，通常用it作形式主語，把真正的主語放在后面。,注意:,1、It is +adj. for/ of sb. to do sth.

3、,不定式做主語 謂語動(dòng)詞用單數(shù),It +be + adj. +for/of sb. to do sth. for: adj.多為描述不定式行為的特征 （important/ necessary / interesting 等.）of: adj. 多為 描述主語的品質(zhì)特征 （kind / nice / friendly / wise / foolish 等.）,作主語,It is easy _______ her to lear

4、n English well.It is clever ________ you to solve the problem.,of,for,,2、It takes sb. some time to do sth.,,It takes me three hours to finish the homework every day.,作主語,我每天花去三個(gè)小時(shí)完成家庭作業(yè)。,I spend three hours finishing th

5、e homework every day.,3、It is + n. (for sb) to do sth.,It is my pleasure to help you with your English.,作主語,4、用在諺語中,To see is to believe.,To say is easy, but to do is hard.,作主語,1、It is necessary ______us to learn to wait

6、. (of/for)2、It was careless ______me to break the cup . （of/for)3、It took them 1,000 yuan _________this table. (buy)4、It is my pleasure _________ the box for you. (carry),to buy,for,of,to carry

7、,練習(xí),5、輪到我們打掃教室了。 It is our turn_________________________6、To waste time is to shorten life. （翻譯成中文）,to clean the classroom.,浪費(fèi)時(shí)間就是縮短生命。,練習(xí),1、動(dòng)詞+ to do sth.常用動(dòng)詞有：want / wish / like / would like / hope / plan / tr

8、y / decide / learn / need / agree / begin / start / forget / remember / manage / seem / fail/ manage/ promise等,1、I hope to finish it tomorrow . 2、She plans to go and teach in the country.,作賓語,決定 學(xué)習(xí) (有) 希望， 設(shè)法 拒絕 想 假裝

9、主動(dòng) 答應(yīng) 選 計(jì)劃， 同意 請(qǐng)求 幫一幫,2、動(dòng)詞＋疑問詞+to do,I don’t know____________ next. She can’t decide_________________.,作賓語,2、她不能決定買哪本書。,1、我不知道接下來該做什么。,what to do,which book to buy,=She can’t decide which book she should buy

10、.,3、主語+謂語+it+ adj./n. +to do,作賓語,常見的謂語動(dòng)詞： find, think, consider, feel, make等,The dusty air makes it difficult to get a clear picture of space. 大氣中的塵埃使人難以獲取太空的清晰圖像。,我認(rèn)為學(xué)好英語很重要,,I think it important to learn English well.

11、,,,,1、Don’t forget _________________.(關(guān)燈)2、I happened ________when he called me. （出去）3、I don’t want________________. (依賴別人）4、Sam is learning________________. (怎樣開車）5、We promise __________ the environment.(保護(hù)),to turn

12、 off the light,to go out,to depend on others,how to drive a car,練習(xí),to protect,1、動(dòng)詞 + 賓語（sb./sth.) + to do sth.,作賓補(bǔ)-對(duì)賓語進(jìn)行補(bǔ)充說明,She asked me to help her.The teacher told him to come on time.Edison’s mother taught him to r

13、ead and write. 常用的動(dòng)詞有：ask, allow, advise, want tell, order, teach, expect等,動(dòng)詞多為感官動(dòng)詞、使動(dòng)詞。一感：feel二聽：hear, listen to三使：make, let, have四看：see, notice, watch, look at,John’s mother makes him play the piano every day.,變被

14、動(dòng)時(shí) 是省略的不定式符號(hào) to要還原回來：hear sb do sb be heard to do sth,John _________ play the piano every day.,is made to,2、動(dòng)詞+賓語+不帶to的不定式,注意:,,1、Let him _______ the work at once. (finish / to finish)2、Do you like listenin

15、g to other people______? (talk / talking/to talk ) 3、Jim was seen _________the room. (enter /to enter )4、Please tell her _________here on time . (come / to come),finish,talk,to enter,to come,練習(xí),5、I’ll

16、help you _________this problem. (to solve /solve )6、 I wish you will stay with us.(改成簡單句）7、Her story made us laugh. (改成被動(dòng)句）,(to ) solve,I wish you to stay with us.,We were made to laugh by her story.,1、主語 + be

17、+ to do sth 主語多為 duty / wish / hope / idea / plan / ambition/ dream / work / job 等 名詞,1、My ambition is to be a singer. 2、His work is to clean the classroom every day.,作表語,我的夢(mèng)想是成為一名歌手。他的工作是每天清掃教室。,2、諺語中,1、To know every

18、thing is to know nothing.2、To see is to believe.,放在被修飾詞的后面,I have a lot of work to do. I want to find something to drink.,作定語,不定式為不及物動(dòng)詞時(shí)后面應(yīng)有必要的介詞。,I’m looking for a hotel _________.A. stay B. stay at C. to stay D

19、. to stay at,D,位置：,He hasn’t got a house to live,I have no pens to write _______.,in,with,He bought a toy to play with.,1、原因狀語: 主語 + be + adj.(表情感) + to do sth. (happy/ glad angry / sorry / sad /afraid 等),I’m

20、sorry to hear that.,作狀語,I’m glad to see you.,2、目的狀語,The soldier ran into the room to save the girl .,Tom went to the airport _________________(去接他的爺爺),to meet his grandpa,3、結(jié)果狀語 too + adj./adv. +to do sth.adj./adv. eno

21、ugh to do sth.,You are too young to do this job.,He ran fast enough to catch the bus.,動(dòng)詞不定式可以充當(dāng)?shù)木渥映煞?1、作主語,2、作賓語,3、作賓語補(bǔ)足語,4、作表語,5、作定語,6、作狀語,All I did was to give him some advice . His dream is to travel all over the wor

22、ld. Lucy needs a friend to play with . He was the last guest to arrive . It’s interesting to read a science fiction .,下列不定式作何種成分？,（表語）,（表語）,（定語）,（定語）,（主語）,He was glad to see you. My father offered to buy a computer f

23、or me. He interviewed detective Ken to get some information . The doctor asked him to have more fruit and vegetables.,（狀語）,（賓語）,（狀語）,（賓語補(bǔ)足語）,下列不定式作何種成分？,1、習(xí)慣于be used to _______ 被用于be used to _______Water is use

24、d to _____ (put) out fires.I am used to _______ (take) a walk after supper.2、prefer …to… 比起……來更喜歡 比起游泳來，我更喜歡跑步。I prefer ________ to ___________.3、look forward to 期待，盼望I’m looking forward to _______ (visit) Beiji

25、ng again.,介詞 to 與不定式 to 的區(qū)別,put,taking,running swimming,visiting,do,doing,Exercises,1. -- You’ve done very well this time. -- It’s really kind ______.A. for you to say so B. for you saying soC. of you t

26、o say so D. of you saying so2. It is better to lose one’s life than ____.A. if you lose your spiritB. losing his spiritC. to lose one’s spiritD. your spirit getting lost,C,C,3. – I can’t work in this way. -

27、- Why not ____ it in some other way?A. try to doB. try doingC. trying to doD. trying doing4. Since you find it difficult ____ a decision, you’d better a discussion( 討論) with your parents.A. reach; haveB. re

28、aching; haveC. reach; havingD. to reach; have,B,D,5. My father hates(痛恨) ___. He never allows me _____.A. to smoke; to smokeB. smoking; smokingC. smoke; smokingD. smoking; to smoke6. The girl was beginning _

29、__.A. get angry B. to get angryC. getting angry D. angry,D,B,7. There isn’t any difference between the two. I really don’t know ________.A. where to chooseB. which to chooseC. what to chooseD. to choose whi