人教版选修7unit 2 Robots P2 教学设计Word文档格式.docx

1、While going over the text, try to recognize the collocations, treat them as single blocks of language and copy them out into your Collocation Book.Now go to page 13. Work in pairs to finish the three exercises in 10 minutes. 3. Learning about the passive voiceACTIVE AND PASSIVE TENSES CHARTSIMPLE PR

2、ESENT and SIMPLE PAST The active object becomes the passive subject. am/is/are + past participle was/were + past participleActive: Simple Present The movie fascinates me. The movie bores Jack. The movie surprises them.Passive:I am fascinated by the movie. Jack is bored by the movie. They are surpris

3、ed by the movie. Simple Past The movie bored me. The movie fascinated Jack. The movie surprised them.I was bored by the movie. Jack was fascinated by the movie. They were surprised by the movie.PRESENT and PAST CONTINUOUS （PROGRESSIVE） Passive form: am/is/are + being + past participle was/were + bei

4、ng + past participle Present Continuous I am helping Shannon. June is helping Su and Ling.Shannon is being helped by me. Su and Ling are being helped by June. Past Continuous I was cleaning the bathroom. They were cleaning the bedroom. Susan was cleaning the kitchen and patio.The bathroom was being

5、cleaned by me. The bedroom was being cleaned by them. The kitchen and patio were being cleaned by Susan.PRESENT PERFECT, PAST PERFECT and FUTURE PERFECT have/has been + past participle had been + past participle Present Perfect I have mailed the gift. Jack has mailed the gifts.The gift has been mail

6、ed by me. The gifts have been mailed by Jack. Past Perfect Steven Spielberg had directed the movie. Penny Marshall had directed those movies.The movie had been directed by Steven Spielberg. The movies had been directed by Penny Marshall. Future Perfect John will have finished the project next month.

7、 They will have finished the projects before then.The project will have been finished by next month. The projects will have been finished before then.FUTURE TENSES Passive forms: will + be + past participle is/are going to be + past participle Future with WILL I will mail the gift. Jack will mail th

8、e gifts.The gift will be mailed by me. The gifts will be mailed by Jack. Future with GOING TO I am going to make the cake. Sue is going to make two cakes.The cake is going to be made by me. Two cakes are going to be made by Sue.PRESENT / FUTURE MODALS The passive form follows this pattern:modal + be

9、 + past participle WILL / WONT （WILL NOT） Sharon will invite Tom to the party. Sharon wont invite Jeff to the party. （Sharon will not invite Jeff to the party.）Tom will be invited to the party by Sharon. Jeff wont be invited to the party by Sharon. （Jeff will not be invited to the party by Sharon.）

10、CAN / CANT （CAN NOT） Mai can foretell the future. Terry cant foretell the future. （Terry can not foretell the future.）The future can be foretold by Mai. The future cant be foretold by Terry. （The future can not be foretold by Terry.） MAY / MAY NOT Her company may give Katya a new office. The lazy st

11、udents may not do the homework. MIGHT / MIGHT NOT Her company might give Katya a new office. The lazy students might not do the homework.Katya may be given a new office by her company. The homework may not be done by the lazy students. Katya might be given a new office by her company. The homework m

12、ight not be done by the lazy students. SHOULD / SHOULDNT Students should memorize English verbs. Children shouldnt smoke cigarettes.English verbs should be memorized by students. Cigarettes shouldnt be smoked by children. OUGHT TO Students ought to learn English verbs. （negative ought to is rarely u

13、sed）English verbs ought to be memorized by students. HAD BETTER / HAD BETTER NOT Students had better practice English every day. Children had better not drink whiskey.English had better be practiced every day by students. Whiskey had better not be drunk by children. MUST / MUST NOT Tourists must app

14、ly for a passport to travel abroad. Customers must not use that door.A passport to travel abroad must be applied for. That door must not be used by customers. HAS TO / HAVE TO She has to practice English every day. Sara and Miho have to wash the dishes every day. DOESNT HAVE TO/ DONT HAVE TO Maria d

15、oesnt have to clean her bedroom every day. The children dont have to clean their bedrooms every day.English has to be practiced every day. The dishes have to be washed by them every day. Her bedroom doesnt have to be cleaned every day. Their bedrooms dont have to be cleaned every day. BE SUPPOSED TO

16、 I am supposed to type the composition. I am not supposed to copy the stories in the book. Janet is supposed to clean the living room. She isnt supposed to eat candy and gum. They are supposed to make dinner for the family. They arent supposed to make dessert.The composition is supposed to be typed

17、by me. The stories in the book are not supposed to be copied. The living room is supposed to be cleaned by Janet. Candy and gum arent supposed to be eaten by her. Dinner for the family is supposed to be made by them. Dessert isnt supposed to be made by them.PAST MODALS The past passive form follows

18、this pattern:modal + have been + past participle SHOULD HAVE / SHOULDNT HAVE The students should have learned the verbs. The children shouldnt have broken the window.The verbs should have been learned by the students. The window shouldnt have been broken by the children.Students ought to have learne

19、d the verbs. The verbs ought to have been learned by the students. BE SUPPOSED TO （past time） I was supposed to type the composition. I wasnt supposed to copy the story in the book. Janet was supposed to clean the living room. She wasnFrank and Jane were supposed to make dinner. They werenThe compos

20、ition was supposed to be typed by me. The story in the book wasnt supposed to be copied. The living room was supposed to be cleaned by Janet. Candy and gum werenDinner was supposed to be made by them. Dessert wasnThat firm may have offered Katya a new job. The students may not have written the paper

21、. That firm might have offered Katya a new job. The students might not have written the paper.Katya may have been offered a new job by that firm. The paper may not have been written by the students. Katya might have been offered a new job by that firm. The paper might not have been written by the students.4. 被动语态小结被动语态的特殊结构形式1）带情态动词的被动结构。其形式为：情态动词be过去分词。例The baby should be taken good care