江苏省新沂市第二中学八年级英语下册 Unit 7 International charities grammar 2教案 （新版）牛津版.doc

international charities教学目标1.to know the context of passive voice .2.master and use the passive voice of the present tense and the simple past tense correctly.重点1.to know the context of passive voice .2.master and use the passive voice of the present tense and the simple past tense correctly.难点1.to know the context of passive voice .2.master and use the passive voice of the present tense and the simple past tense correctly.教法及教具some pictures and a tape recorder.教学过程教 学 内 容 个案调整教师主导活动学生主体活动 step1 presentation1.teacher asks :who do operations on the plane ?write down : orbis doctors do operations.2.ask them to change it into passive voice .operations are done by orbis doctors .3.ask them to discuss them and explain:we can also introduce who or what performs an action in the passive voice using by .we put by and the performer after the verb . 4.show more examples .(1)activities for the computer club are organized by mr lin(2)the little girl was saved by a policeman .(3)these photos were taken by nancy .step2 practice 1. ask them to complete the exercises of part a . 2. check the answers and ask them to read the sentences aloud .3. do more exercises :(1)tom often helps jenny when she is in trouble (2)i bought a computer last week .(3)the whole cake was eaten by eddie yesterday .(4)many trees are planted by students and teachers every year.(5)she takes good care of the children .answer :orbis doctors (1)jenny is often helped by tom when she is in trouble .(2)a computer was bought by me last week .(3)eddie ate the whole cake yesterday .(4)students and teachers plant many trees every year .5)the children are taken good care of by her.教 学 内 容 个案调整教师主导活动学生主体活动step3production主动语态与被动语态的转化：主动语态主语谓语宾语she hurt me被动语态原宾语谓语（被动式）原主语（改为宾格）i was hurtby her 主语+谓语+双宾语的句式转化：主动语态主语he谓语(主动式)passed间宾me直宾abook被动语态原直宾a book谓语（被动式）was passedtomeby原主语（改为宾格）him原间宾（改为主格）i谓语（被动式）was passed原直宾a bookby原主语（改为宾格）himstep4 practice1. do some exercises on page 100 .2. check the answer one by one .3. ask the students to read the sentences .step5homework1. try to remember the new words .2. to master the passive voice .3. to do more exercises .keys:1.