九年级英语下册课件Section A 第1课时1a2dWord格式.docx

1、法规scientific adj.科学上的；科学的afford v.承担得起（后果）；买得起takeaway n.外卖食物bin n.垃圾箱shark n.鲨鱼fin n.（鱼）鳍chain n.链子；链条ecosystem n.生态系统reusable adj.可重复使用的；可再次使用的transportation n.运输业；短语be harmful to对有害at the top of在顶部或顶端the food chain食物链take part in参加turn off关掉pay for 付费；付出代价take action采取行动句型1.Were trying to save th

2、e earth！我们正在努力拯救地球！2.The air is badly polluted.这里的空气污染很严重。3. No scientific studies have shown that shark fins are good for health. 没有科学研究表明鲨鱼鳍对健康有利。4. We should help save the sharks. 我们应该帮助拯救鲨鱼。Section Brecycle v.回收利用；再利用gate n.大门bottle n. 瓶子president n.负责人；主席；总统work n.（音乐、艺术）作品metal n.金属napkin n.餐巾

3、；餐巾纸inspiration n.灵感；鼓舞人心的人（或事物）iron n.铁creativity n.创造力；独创性throw away扔掉；抛弃put sth. to good use好好利用某物pulldown拆下；摧毁upside down 上下颠倒；倒转bring back恢复；使想起；归还1. Do you often throw away things you dont need anymore? 你是否经常把你不再需要的东西扔掉呢？2. Have you ever thought about how these things can actually be put to go

4、od use? 你曾经考虑过怎样将这些东西好好利用吗？3. The windows and doors come from old buildings around her town that were pulled down. 门窗来自她所住的镇上被拆除的旧建筑物。4. She opened a small shop where she sells her bags, and she has also set up a website to sell them online. 她开了一家小店卖她制作的包，并且她还开了一家网店出售它们。语法现在进行时；被动语态；现在完成时知识目标复习现在进行时

5、、现在完成时和被动语态等的用法。能力目标以“保护环境”为主题，运用本课相关句型与他人展开讨论；能向大家介绍有哪几种污染类型，怎样回收利用废弃物品等。情感目标体会到保护环境的重要性，学会保护大自然、保护地球，从身边的小事做起，号召大家参与到保护环境的行动中来。【课时建议】 本单元建议5课时Section A （1a2d）1课时Section A （3a4c）1课时Section B （1a1d） 1课时Section B （2a2e）1课时Section B （3a3b）1课时词汇短语：主要采用多媒体及图片展示法。基本句子：采用图片展示及交际法（利用多媒体展示两人进行交际时的情景）。语法：复习现

6、在进行时、现在完成时和被动语态采用“巧记歌诀”记忆法。被动语态的用法谁的动作不知道，说出谁做没必要；承受之人需强调，被动语态莫忘了。Section A 第1课时（1a2d）类别学习重点重点单词litter, bottom, fisherman, coal, ugly, advantage, cost, wooden, plastic重点短语close down, play a part in, clean up, cut down, instead of, make a difference, lead to重点句式1. It used to be so clean.2. Everyone i

7、n this town should play a part in cleaning it up！3. The air has become really polluted around here.4. Well, to cut down air pollution, we should take the bus or subway instead of driving.课前预习写一写1.垃圾litter 2.底部bottom 3.渔民fisherman4.煤coal 5.丑陋的ugly 6.优点advantage7.花费cost 8.木制的wooden 9.塑料plastic译一译1.关闭c

8、lose down 2.参与；起作用play a part in3.打扫干净clean up 4.减少cut down5.代替instead of 6.起作用；有影响make a difference7.过去常常used to 8.通往；导致lead to背一背1.它过去是那么干净。It used to be so clean.2.这个镇上每个人都应该参与清理河流。Everyone in this town should play a part in cleaning it up!3.这附近的空气真的被污染了。The air has become really polluted around

9、here.4.为了减少空气污染，我们应该乘公汽或地铁，而不开车。To cut down air pollution, we should take the bus or subway instead of driving.新课导入Theres more and more pollution in the world now, such as noise pollution, air pollution, water pollution and so on. Is there any pollution in your hometown? Please discuss with your par

10、tner.新课展示【完成教材1a1c的教学任务】1.要求学生仔细看1a的图片，并完成相应练习。2.请23名同学展示自己的答案，老师可做适当的补充并总结。3.听录音，完成1b的练习，让学生模仿1c中的对话，用1a中的信息编造自己的对话，并请23组同学当堂演示。典例参考A: The street was so noisy.B: But it used to be quieter. Yes, but there are too many shops playing loud music. Everyone in this city should play a part in cutting down

11、 noise.【语法提要】1.used toused to为固定结构，意为“曾经；过去常常”，表示过去存在或经常发生但现在已经停止的行为或习惯，后接动词原形。例句：We used to live in London. 我们曾在伦敦居住过。She used to be really quiet, but now she is very outgoing. 她过去真的很文静，但是现在她很外向。注意：used to不与表示过去的时间状语连用。它的否定结构为“主语 + didnt + use to+动词原形”；它的一般疑问结构为“Did+主语+use to+动词原形+其他？”或“Used+主语+to+

12、动词原形+其他？”。She didnt use to / usednt to come.她过去不常来。Did he use to be a writer？=Used he to be a writer? 他过去是名作家吗？拓展：be / get used to sth. / doing sth.，表示“习惯于/适应于某事/ 做某事”。其中used是形容词，意为“习惯；适应”。I am used to getting up early. 我习惯早起。Youll soon get/be used to his sense of humor. 你不久就会适应他的幽默感。2.play a part i

13、nplay a part in意为“参与某事；在方面起作用”，后接名词、代词或v.-ing形式。play an active part in （doing） sth. “积极参与（做）某事”；play an important part in （doing） sth.“在（做）某事中发挥重要作用”。She plays an active part in politics. 她积极参与政治活动。I want to play an active part in school activities. 我想积极参加学校活动。Public transportation plays an importan

14、t part in our daily life. 公共交通在我们的日常生活中发挥着重要作用。【问题探究】1. There used to be （过去有） so many trees on the hills.2. We should play a part in cleaning （clean） the city up.【完成教材2a2d的教学任务】1.要求学生翻开课本P98。播放第一遍录音，完成2a,2b的听力任务。2.要求学生听第二遍录音，并逐句进行跟读。3.听力内容巩固训练。要求学生根据所听到的内容完成下列各句。完成后要求若干学生给出自己的答案，以巩固对听力内容的理解。（1） The

15、 air has become really polluted around there.（2）I used to see the stars clearly.（3）People are also littering in public places.4.大声朗读听力材料。5.播放听力材料，要求学生模仿听力内容，利用2a,2b信息谈论空气污染情况，然后邀请23名同学当堂表演，看谁的表现最佳。6.两人一组练习2d的对话，并让23组同学当堂表演。7.教师根据学生的理解对其重难点进行讲解。1.costcost作动词，意为花费，它的主语只能是物，不能是人。辨析：take, spend, cost与pa

16、y四者均用作动词，表“花费”，但其用法却大不相同。具体区别如下表：take常用it作形式主语常用于it takes/took sb. some time to do sth.“做某事花费某人多长时间”句型中spend其主语是人常用于spend some time/money doing sth.或spend some time/money on sth.“花费时间/金钱做某事”或“在某事/某物上花时间/金钱”句型中cost其主语是物常用于sth. cost（s） sb. some money “某事/某物花费某人多少钱”句型中pay常用于sb. pay（s） some time/money f

17、or sth.“某人为某物花费多少时间/金钱”句型中instead of作介词短语，意为“代替;而不是”，后面常跟名词、代词或v. ing形式。instead of doing sth.意为“代替做某事”。She went to school instead of staying at home. 她没有待在家里而是去上学了。instead of与insteadinstead of介词短语，其后可跟名词、代词或v.-ing形式。We can take a bus to work instead of driving. 我们可以坐公交车而不是开车去上班。instead副词，常位于句末，位于句首时

18、，其后有逗号。He didnt reply. Instead, he left the room.他没回答，反而离开了房间。（A）1.（山东青岛中考）How much is the ticket to Central Park?A one-way ticket_$40, and you can_ another $20 for a round-trip.A. costs; pay B. cost; spend C. pay; spend D. spends; pay（B）2. We went to climb mountains _going shopping.A. instead B. in

19、stead of C. prefer to D. take the place活学活练（A）1.（贵州黔西南州中考）Maria watch TV, but now she listening to music.A. used to; is used to B.is used to; used toC. used to; used to D.is used to;（C）2.Everyone should play a part in the environment.A. protect B. protects C. protecting D. protected（B）3.（湖北十堰中考）Smar

20、t phones are more and more popular now.So they are. But they still _ too much.A .pay B. cost C. take D. spend（C）4.We should be grateful（心存感激的） for whats right instead of_about whats wrong.A. complain B. complains C. complaining D. complained布置作业：教师引导学生课后完成本课时对应练习，并预习下一课时内容。教学反思本课时通过听、说、读、写训练让学生对污染的词汇及其相关的语言知识有了初步的掌握，并能听懂和表达有关污染的现象、导致污染的原因及治理措施。教学过程中老师的疑问：教师点评和总结：