人教版九年级Unit 13 We're trying to save the earth!-Section A Grammar focus 4a—4c-教案、教学设计-公开课-(配套课件编号：5086f).doc

1、GrammarThe Present Progressive Passive Voice Teaching goals : 1、识记现在进行时被动语态的构成; 2、理解并能灵活运用现在进行时的被动语态。 幻灯片 2 【预习检测】 阅读教材 8788 页的内容，了解、归纳、总结现在 进行时被动语态的结构和用法，然后用所给动词的适当形 式完成句子。 are being built 1.At prensent many new buildings(build) along the river. is being discussed 2.His suggestion(discuss) at the m

2、eeting now. are being hunted 3.Many rare animals(hunt) for food or fur , so they areendangered. are being used 4.The fields where crops used to be grown (use) for buildings and soon the buildings will be completed. 幻灯片 3 is being carried 5.The rubbish here(carry) by the cleaners now. are being exami

3、ned 6.Look !These old men(examine) by the doctor. 7.It is well known to us that a lot of rivers (pollute) by the factories. are being polluted 幻灯片 4 【讲习案】 The Present Progressive Passive Voice 幻灯片 5 同学们先看下面的情景，对划线句子进行翻译。 在我们教室的前面有一条小河，这条小河以前非常干净，清澈 见底，鱼儿游弋，但时至今日， （1）这条小河被污染了，河里到 处都是垃圾，淤泥成堆，臭味熏天，对我们的

4、健康很不利，在环保 部门的督促下， （2）现在工人们正在清理这条小河，我们想， （3） 这条小河不久就会被彻底清理干净。 (1) The small river has been polluted. (2) Now ,the small river is being cleared. (3) Soon ,the small river will be cleared completely. 幻灯片 6 现在进行时被动语态的构成形式： 肯定式： 主语+be (am/is/are)+being+p.p+by 宾语+- 疑问式： Be +主+being+p.p+- 否定式： 主+be(am/is/a

5、re)+not+ being+p.p+- 幻灯片 7 【课堂训练】 将下列句子改为一般疑问句和否定句。 The new dress is being made (by her). The trees are being planted. The house is being built. 幻灯片 8 【固学案】 1、将下列句子变成被动语态。 (1)She is teaching a lesson. A lesson is being taught (by her). (2)They are studying the milu deer at the research centre. The m

6、ilu deer is being studied at the research centre. (3)They are carrying out many interesting experiments these days. Many interesting experiments are being carried out (by them) these days. 幻灯片 9 2、语法填空： are being protected Pandas are the mascot of WWF and (protect) both by WWF and the Chinese govern

7、ment.However, they are not the only animals in danger.Other endangered spe -cies are being discovered (discover) in China by WWF on a is the porpoise(江豚)in the Yangtze regulara basis.One example River . are now being studied They (now study) as their numbers decrease.Another is the tiger In northeast China,which is being observed (observe) becausethe tiger almost dies out.Over the years WWFhasdonemanythingsto help. Peopleintheworld are being encouraged (encourage) to pay more attention to wilddife. 幻灯片 10 HomeworkHomework Do exercises on P29