云南省德宏州梁河县第一中学高中英语 现在完成时的被动语态学案Step 1 (语法复习)1.复习被动语态1) 被动语态的结构:be + p.p.2) 一般现在时被动语态的结构:am/is/are (not)+p.p.3) 一般过去时被动语态的结构:was/were (not)+p.p.4)含有情态动词被动语态的结构:can/could/may/might/will/would/shall/should/must/need(not)+be + p.p.5)一般将来时被动语态的结构:will (not)/be (not) to+ be+ p.p. 2. 用所给词的正确行使填空1) Running races (hold) on the playground yesterday.2) Food (serve) between 12:00 and 14:00 every day.3) Nobody can (allow) to enter the stadium without a ticket.4) Whoever breaks the law, he (punish).Suggested answers:1) were held 2) is served 3) will be allowed 4) will be punished Step 2 语法学习1. DiscoveringLook at the following sentence, paying attention to the underlined part.EXAMPLE: Over time I have been changed a lot. Go back to page 1 8 to read the passage Who am I ?, pick out the sentences in the present perfect passive voice and translate them into Chinese.2.ThinkingLet students look at the tense used in the sentences they picked out and think over this question: What is the structure of the present perfect passive voice?3. Summing upThe structure of the present perfect passive voice is “have/has+ been + p.p.”. It is a combination of the present perfect tense (have/has + done) and the passive voice (be + p.p.).Turn to page 87 and look at the chart of the present perfect passive voice.1现在完成时的被动语态的构成(以动词 ask 为例)肯定式否定式疑问式I haveYou have He/She/It hasWe haveYou have They haveI haveYou have He/She/It hasWe haveYou have They have Have I Have you Has he/she/itHave weHave yourHave they Step 3 Grammar practice Finish the exercise 2 on page 21.Exercise 1 Change th e following sentences into the present ...