人教版九年级Unit 13 We're trying to save the earth!-Section A 3a—3b-ppt课件-(含教案+视频+素材)-公开课-(编号：45031).zip

Section A 3a-3b Air pollution Water pollution Land pollution Waste pollution Noise pollution Not only is the earth polluted, but also some animals are endangered. Shark 鲨鱼鲨鱼 1. Have you ever seen a shark（鲨鱼）（鲨鱼）? 2. What do you know about sharks? The shark fin soup 1800.00RMB each bowl It comes. Read the first paragraph and judge the sentences 1. Shark fin（鱼鳍）（鱼鳍）soup is famous and expensive all around the world. 2. If we get a bowl of shark fin soup, We will kill a whole shark . Read the second paragraph 1. People cut off sharks fins and throw the sharks back into the ocean. 2. Sharks are in the bottom of the food chain in the oceans ecosystem. n. 生态系统生态系统 食物链食物链 Read the second paragraph again and answer the following questions. 1. What do people do when they catch a shark? 2. What will happen to a shark if it doesnt have a fin? Without a fin, a shark no longer swim and slowly dies. They cut off their fins and throw the sharks back into the ocean. 3. If sharks number drop too low, what will it bring？ 4.How many sharks are caught and traded every year? 5.How are the numbers of some kinds of sharks? It will bring danger to all ocean life Around 70 million . They have fallen by over 90 percent in the last 20 to 30 years. The shark is being killed. The man is cutting the fin off. Sharks are in danger. “Help me ,save me please救救救救 我吧我吧 What should we do? Yao Ming ,the Chinese basketball star , are calling on us to protect sharks. As what he said in the Ad， when the buying stops, the killing can too. Read the third paragraph 1. WildAid and the WWF are environmental protection groups in China. 2. Shark fins are good for health. 保护环境，人人有责 Everyone should play a part in environmental protection. Where shark fin soup is popular Number of sharks caught and traded every year How governments can help Two environmental groups which are against “finning” In southern China Around 70 million By developing laws to stop the sale of shark fins WildAid and the WWF 3a Read the passage about sharks and complete the fact sheet below. 1. A shark can no longer swim and slowly dies. 鲨鱼不能再游泳然后慢慢死掉。鲨鱼不能再游泳然后慢慢死掉。 no longer意思是意思是“不再不再” e.g. Im no longer a student. 我不再是个学生了。我不再是个学生了。 有两个短语和有两个短语和no longer同义，即同义，即 notany longer和和notany more，但他，但他 们侧重的方面不同。们侧重的方面不同。 no longer和和notany longer侧重时间。侧重时间。 e.g. He no longer lives here. = He doesnt live here any longer. 他不在这儿居住了。他不在这儿居住了。(一个时间以前他住一个时间以前他住 在这儿，过了这个时间，他就离开了。在这儿，过了这个时间，他就离开了。) notany more侧重程度和数量侧重程度和数量 e.g. You can drink no more. = You cant drink any more. 你不能再喝了。你不能再喝了。(喝酒的量到了一定程喝酒的量到了一定程 度，不能再继续下去了。度，不能再继续下去了。) 2. This is not only cruel, but also harmful to the environment. 这不但残忍而且对环境有害。这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，着用于连接两个表示并列关系的成分，着 重强调后者，其意为重强调后者，其意为“不仅不仅而且而且 ”; 其中的其中的also有时可以省略。有时可以省略。 e.g. She not only plays well, but also writes music. 她不但很会演奏，而且还会作曲。她不但很会演奏，而且还会作曲。 Not only men but also women were chosen. 不仅仅是男的，女的也有被选中的。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。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。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放在句首，后接句子时要用倒装结 构。构。 e.g. Not only had the poor man been fined, but also he had been sent to prison. 这个可怜的人不仅被罚款，而且还被这个可怜的人不仅被罚款，而且还被 送进了监狱。送进了监狱。 be harmful to 对对有害有害 e.g. Smoking is harmful to the health. 吸烟有害健康。吸烟有害健康。 Playing computer games much is harmful to students. 电脑游戏玩太多对学生有害。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。鲨鱼位于海洋生物系统食物链的顶部。 at the top of 在在最高地位最高地位; 用最高用最高最最 大大的的(速度速度, 声音等声音等) e.g. I looked at the top of his head, his hair shiny and parted smoothly. 我看他的头顶我看他的头顶, 头发闪亮且平滑的分头发闪亮且平滑的分 开。开。 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，会给所有如果它们的数目降至过低，会给所有 海洋生物带来危险。海洋生物带来危险。 此句复数形式的此句复数形式的numbers表达全海洋中鲨表达全海洋中鲨 鱼的总量。当表示数值的高或低时，鱼的总量。当表示数值的高或低时， number要用要用high或或low修饰。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在那个国家，城市儿童入学人数比乡镇 及农村要高。及农村要高。 常与常与number搭配的动词有搭配的动词有grow, fall等。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。近来拥有轿车的家庭数量增长很快。 5. Environment 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，都在教育公众有关会和世界自然基金会，都在教育公众有关 “猎翅猎翅”的行为。的行为。 1) 句中句中fin本为名词，指本为名词，指 “鱼鳍鱼鳍”。此句中的。此句中的 finning由动词化的由动词化的fin（割鲨鱼鳍以获取（割鲨鱼鳍以获取 鱼翅）的鱼翅）的-ing形式转化而成，指课文中所形式转化而成，指课文中所 陈述的陈述的 “猎翅猎翅”这一行为。这一行为。 WildAid（美国野生救援协会）是保护野生动物（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，及栖息地环境的一个非盈利性的机构，1999 年注册成立，其宗旨是保护及救助世界范围年注册成立，其宗旨是保护及救助世界范围 内的野生动物内的野生动物 WWF（世界自然基金会）英文全称为（世界自然基金会）英文全称为World Wide Fund for Nature，成立于，成立于1961年，是享年，是享 有国际盛誉，全球最大的独立性非政府环境有国际盛誉，全球最大的独立性非政府环境 保护组织之一。保护组织之一。 3b Read the passage again and fill in the blanks with the words in the box. so although if but when 1. Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup. 2. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger. when so 3. Many think that sharks are too strong to be endangered, _ they are wrong. 4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins. but Although if adj. 科学上的，科学的科学上的，科学的 鱼翅汤在中国的南部很受欢迎，猎翅鱼翅汤在中国的南部很受欢迎，猎翅(finning)行为也异常行为也异常 猖狂。通过今天的学习，你想对那里的人说什么？猖狂。通过今天的学习，你想对那里的人说什么？ 向向 他们写一篇关于保护鲨鱼的倡议书。他们写一篇关于保护鲨鱼的倡议书。 (What do you want to say to the people in southern China? Write a letter of saving sharks to them.) 提示提示animals , friends, finning, cruel, harmful without, no longer, at the top of, if numbers , drop low, bring danger, no scientific studies, are good for, why, help save Unit 13 Were trying to save the earth! 评测练习评测练习 第二课时第二课时 Section A(3a-3b) 一、根据括号里的提示写单词一、根据括号里的提示写单词. 1. Keeping the animals in the zoo is very_( 残酷的). 2. _(鲨鱼) are very smart animals. 3. Our government has made _(法律) to stop driving after drinking. 4. Pollution is becoming more and more serious with the development of the _(工业). 5. Its _ (有害的) to the environment. 二、用括号里所给单词的适当形式填空二、用括号里所给单词的适当形式填空. 6. Hainan is in the _(south) part of China. 7. We all support his _(science) research. 8. This is an _(danger) animal. 9. Smoking is _(harm) to your health. You must give it up. 10. Tom is _(strong) in our school. 三、根据汉语意思完成英语句子，每空一词三、根据汉语意思完成英语句子，每空一词. 11. 保护海洋生态系统食物链的平衡很重要。 Its very important to keep the balance of the _ _ in the ocean ecosystem. 12. 目前很多动物的数量在下降。 At present the number of many animals is _ _. 13. 他的中指工作时不小心被机器切掉了。 His middle finger _ accidentally _ _ while working. 14. 让我们拒绝鱼翅汤吧。因为保护鲨鱼就是保护我们自己。 Lets _ _ _ _ _ _ because “to protect sharks is to protect ourselves”. 15. 听！汤姆在练歌房里引吭高歌。 Listen! Jason is singing _ _ _ _ his voice in the singing-hall. 课 题 Unit 13 We are trying to save the earth!（第 2 课时）教学批注 一、教学三维目标 1.知识与技能： 1. 语言知识目标 基本词汇： shark, fin, cruel. harmful, be harmful to, at the top of, chain, the food chain, ecosystem, industry, law, scientific 基本词组：be harmful to, at the top(of sth.), no longer, the food chain, 基本句型：Were trying to save the earth! No scientific studies have showed that shark fins are good for health. We should help save the sharks. 2. 技能目标 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。 2.教学方法：讲授法，交际法，直观法，讨论法等。 3.情感态度与价值观： 有环境危机意识，学会关注环境保护环境。 二、教学重点、难点 1. 教学重点： （1）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。 （2）保护环境的措施方法。 2. 教学难点： 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。 三、教学准备 多媒体教学设备 四、教学课时 1 课时课时 教 学 设 计 五、教学过程 Period 2 Section A2 (3a-3c) I. Revision. Ask students what kind of pollution they know. II. Lead in Teacher tells students the earth is badly polluted. And some animals are also endangered. Ask students to look at some animals in the pictures. We should do something to protect the animals and the environment! III. Discussion (1) Have you ever seen a shark? (2) What do you know about sharks? IV. Reading 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 of the food chain in the oceans ecosystem. WildAid and the WWF are environmental protection groups in China. Sharks fin s are good for health. Read the second paragraph and answer the following questions. 1.What do people do when they catch a shark? 2.What will happen to a shark if it doesnt have a fin? 3.If sharks number drop too low, what will it bring? 4.How many sharks are caught and traded every year? 5.How are the numbers of some kinds of sharks? Complete the fact sheet in 3a. Where shark fin soup is popular Number of sharks caught and traded every year How much the numbers of some kinds of sharks have fallen in the last 20 to 30 years Two environmental groups which are against “finning” V. Practice (3b) 教 学 设 计 Read the passage and fill in the blanks with the words in the box. 1. Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup. 2. Sharks are at the top of the food chain, _ if their numbers drop, the oceans ecosystem will be in danger. 3. Many think that sharks are too strong to be endangered, _ they are wrong. 4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins. VI. Language points 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 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，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 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. 教 学 设 计 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 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. Environment 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，1999 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。 VII. Homework What do you want to say to the people in southern China? Write a letter of saving sharks to them. 板书设计 Unit13 Were trying to save the earth! Section A(3a-3b) Sharks are in danger! Lets save the sharks!