Unit 13 We‘re trying to save the earth!-Section A （3a-3b）课前预习学案 人教版（新目标）英语九年级全册.doc

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1、Unit 13 Were trying to save the earth!-Section A （3a-3b）【预习目标】1.掌握以下词汇，词组和句型基本词汇：litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, takeaway, bin, shark, fin, method, cruel. Harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation, recycle, napkin,

2、 upside, gate, bottle, president, inspiration, iron, work, metal, creativity,基本词组：be harmful to, at the top(of sth.), take part in, turn off, take action, throw away, put sth. to good use, pull down, bring back基本句型：Were trying to save the earth!The river used to be so clean.The air is badly polluted

3、.No scientific studies have showed that shark fins are good for health.We should help save the sharks.2. 能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。3.有环境危机意识，学会关注环境保护环境。【预习重点】Unit 13 Were trying to save the earth!-Section A （3a-3b）【预习难点】能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。【课前自学】1.跟录音大声朗读99页3a短文2遍，并翻译，换

4、出不理解的地方。2.完成99页3b的练习题【我的疑问】在课前自学中，你有什么疑问？请你写下来，待课堂上老师和同学共同探究解决吧！_。【合作与探究】1. Role-play 2d.Jason and Susan, what are your ideas for solving these problems?2. 翻译句子甚至是河底都满是垃圾。这个小镇上的每个人都应该参加打扫。骑自行车有其它的优点。我买外卖食品从来不拿木筷子和塑料叉子。3. Discussion(1) Have you ever seen a shark?(2) What do you know about sharks?4.阅读

5、训练work on 3a.1.Sharks are endangered, read the passage and judge the sentences.Sharks fin（鱼鳍）soup is famous and expensive all around the world.We have to kill a whole shark to get a bowl of sharks fin soup.People cut off sharks fins and throw the sharks back into the ocean.Sharks are in the bottom o

6、f the food chain in the oceans ecosystem.WildAid and the WWF are environmental protection groups in China.Sharks fin s are good for health.2.Complete the fact sheet in 3a.Where shark fin soup is popularNumber of sharks caughtand traded every yearHow much the numbers ofsome kinds of sharks havefallen

7、 in the last 20 to 30yearsTwo environmental groupswhich are against “finning”5.知识探究1. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。no longer意思是“不再”e.g. Im no longer a student. 我不再是个学生了。有两个短语和no longer同义，即notany longer和notany more，但他们侧重的方面不同。no longer和notany longer侧重时间。e.g. He no longer

8、lives here.= He doesnt live here any longer.他不在这儿居住了。(一个时间以前他住在这儿，过了这个时间，他就离开了。)notany more侧重侧重程度和数量e.g. You can drink no more. = You cant drink any more.你不能再喝了。(喝酒的量到了一定程度，不能再继续下去了。)2. This method is not only cruel, but also harmful to the environment.这种方法不但残忍而且对环境有害。not onlybut also用于连接两个表示并列关系的成分

9、，着重强调后者，其意为“不仅而且”; 其中的also有时可以省略。e.g. 1) She not only plays well, but also writes music.她不仅很会演奏，而且还会作曲。2) Not only men but also women were chosen.不仅仅是男的，女的也有被选中的。若连接两个成分作主语，其谓语通常与靠近的主语保持一致。e.g. Not only you but also he has to leave. 不只是你，他也得离开。not only放在句首，后接句子时要用倒装结构。e.g. Not only had the poor man

10、been fined, but also he had been sent to prison.这个可怜的人不仅被罚款，而且还被送进了监狱。be harmful to 对 有害e.g. Smoking is harmful to the health. 吸烟有损健康。Playing computer games much is harmful to students.电脑游戏玩太多对学生有害。3. Sharks are at the top of the food chain in the oceans ecosystem.鲨鱼位于海洋生物系统食物链的顶部。at the top of 在.最高

11、地位; 用最高最大的(速度, 声音等)e.g. I looked at the top of his head, his hair shiny and parted smoothly.我看他的头顶, 头发光亮, 分得平滑。He shouted at the top of his voice in order that he might be heard.他尽力大声叫喊, 以便别人能听见。4. If their numbers drop too low, it will bring danger to all ocean life.如果它们的数目降至过低，会给所有海洋生物带来危险。此句复数形式的

12、number表达全海洋中鲨鱼的总量。当表示数值的高或低时，number要用high或low修饰。e.g. In that country, the number of children going to school is higher in cities than in towns and village.在那个国家，城市儿童入学人数比乡镇及农村要高。常与number搭配的动词有grow, fall等。e.g. The number of families that own cars has been growing quickly recently.近来拥有轿车的家庭数量增长很快。5. E

13、nvironment protection groups around the world, such as WildAid and the WWF, are teaching the public about “finning”.世界各地的环境保护组织，如野生救援协会和世界自然基金会，都在教育公众有关“猎翅”的行为。1) 句中fin本为名词，指 “鱼鳍”。此句中的finning由动词化的fin（割鲨鱼鳍以获取鱼翅）的-ing形式转化而成，指课文中所陈述的 “猎翅”这一行为。2) WildAid和WWF组织WildAid（美国野生救援协会）是保护野生动物及栖息地环境的一个非盈利性的机构，199

14、9年注册成立，其宗旨是保护及救助世界范围内的野生动物；WWF（世界自然基金会）英文全称为World Wide Fund for Nature，成立于1961年，是享有国际盛誉，全球最大的独立性非政府环境保护组织之一。总结本课自己的收获，小组内交流。_【达标小检测】一、单选1. Let me _ the broken glass before someone walks on it.A. set up B. clean upC. come up D. bring up2. 一How will she deal with the work?一She doesnt want to do it by

15、herself. She wants to ask someone else to do it _.A. yet B. instead C. to D. eitller3. In warm weather he often reads under a tree _ in the library.A. instead of B. owing toC. because of D. thanking to4. The waitress of the hotel _ us to our rooms.A. called B. asked C. led D. brought5. The visitors

16、who come to France has increased 5 this year.A. by B. at C. in D. with6. Although this village isnt big. all the other villages I have visited _ are smaller.A. so far B. so longC. far away D. far from7. Reading in bed is not _ for your eyes.A. well B. nice C. good D. kind8. Today environment polluti

17、on is a serious problem in the world. We must do _ to stop it.A. some B. any C. something D. anything9. In the eyes of modern agriculture. chemicals are harmful _ the farming land.A. bv B. in C. at D. to10. I am sure that what you are doing now will make _ in your life.A. a mistake B. a chanceC. a difference D. an effort