Unit 2 Discovering Useful Structures 导学案--人教版高中英语必修第二册.docx

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1、第一学期高一级英语导学案【单元标题】Book 2 Unit 2 第4课时Discovering Useful Structures 导学案【单元主题】本单元以“学会保护濒危动物”为主题，通过学习我国保护珍稀野生动物的措施和取得的成就，了解野生动物的生存现状。【学习目标】1. Learn to know the structure of present continuous passive voice.2. Learn to use present continuous passive voice to describe the ongoing events.【学习过程】【自主探究案】现在进行时

2、的被动语态Task 1：Underline the present continuous passive voice in the sentences and discuss its function.African elephants are being hunted.What is being done to help them?What measures are being taken to help them?句式结构: _Task 2: Discovering the structure of present continuous passive voice 1） 现在进行时基本结构

3、(1)肯定结构: _(2)否定结构: _(3)一般疑问句结构:_+主语+being done? (4)特殊疑问句结构:_+am/is/are+主语+being done?【应用实践】句型转换。The walls are being painted now. (变成一般疑问句) _The experiment is being carried out. (变成否定句) _Task 3: 现在进行时的被动语态的基本用法【观察思考】She is being examined by the doctor now.A new teaching building is being built in our

4、 school.Why are you always being punished by your teacher?She may be being punished by her mother.【探究总结】(1)表示此刻正在进行的被动动作,常与now、 look等词连用。(2)表示现阶段正在进行的被动动作。 (3)表示一种习惯性的被动行为,常与_、 frequently等词连用,表示有赞赏、羡慕、讨厌等感情色彩。 (4)可与部分_连用,表示对正在发生的被动动作的推测。【应用实践】完成句子。My younger brother_now _ _(正在被面试). Three foreigners_

5、now_ _(正在被治疗) in China. He_always_ _ (总是被表扬) by the leader. Task 4：现在进行时的被动语态的易混点【观察思考】Look! The children are being taken care of by their aunt.Children are taken good care of at school.(指通常情况)The lift is in use.=The lift is being used.The bridge is under repair.=The bridge is being repaired.With th

6、e population increasing, more land is needed.John, come here. You are wanted on the phone.【探究总结】(1)在现在进行时的被动语态结构中不可漏掉being。(2)由“动词+介词/副词”构成的短语动词,要把它们作为整体看,即把它们看作一个及物动词,动词与介词或副词不能拆开或漏掉(3)“_”结构可代替现在进行时的被动语态结构。 (4)一些表示状态、心理活动、拥有、存在等的动词,如 have、 want、 need、 love等, 一般不用进行时的被动语态,常用_的被动语态表示此时此刻或目前主语承受谓语动词的动

7、作。【应用实践】(1)单句改错。He is always being laughed by others. _(2)完成句子。The habitat of pandas_ _ _(正被保护) by the local government. 合作学习案Task 5: Finish Exerciseon page 29 in your textbook. 单句语法填空1. He is always_(surround) by other students, telling stories.2. The way ahead is_(block) by the police, so we have

8、to take another way.3. Why is she_(follow) by her father at the moment?4. Is the meeting_(hold) in the great hall now?5. More hands_(need) to finish the task now.Task 6: Finish Exercise on page 29in your textbook. 完成句子1. 事故原因正在调查中,所以你不必担心。The cause of the accident_ _ _so you neednt worry. 2. 此刻,我女儿的

9、英语作文正在课堂上被诵读。My daughters English composition_ _ _in class now.3. 如今手机正在为越来越多的青少年所使用。 Mobile phones_ _ _by more and more teenagers nowadays.4. 正在为村民们建造新公寓,明年他们就可以入住了。New apartments_ _ _for the villagers and they will move in next year. 5. 那个小女孩正在接受检查。请耐心等待。The little girl_ _ _. Please wait with pati

10、ence. 课后巩固Task 7: More practice on P29 on the textbook. 句型转换The teacher is questioning the boy about his absence from the class. (改为被动句)_2. His bedroom is being painted. (改为一般疑问句)_3. His car is being repaired at the roadside. (改为用where引导的特殊疑问句)_4. His design of the new bridge is under discussion.(改为

11、同义句)_5. What I am telling you is the truth. (改为被动句)_【自我评价（self-evaluation）】 Think about this passage learning and complete the following form. Rate yourself on a scale of five: one being low and five being high, and put it into your portfolio.Things I can doEvaluationI can concentrate on the lesson54321I can think actively54321I can understand the grammar rules in this unit.54321I can analyze sentences by what is learned in this period. 54321I still need more practice .YESNO 第 5 页 共 4 页 校训： 严 勤 活 实学科网（北京）股份有限公司