Unit13第二课时课件
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*There are some animals are endangered. We should do something to protect the animals and the environment!
Sharks are endangered, read the passage and judge the sentences.
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。
2. 这个镇上的每个人都应该参与清扫。
Everyone in this town should play a part in cleaning it up.
3. 骑自行Biblioteka 有其它的优点。There are other advantages of bike riding. 4. 我买外卖食品从来不拿木筷子和塑料叉 子。 I never take wooden chopsticks or plastic forks when I buy takeaway food.
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numbers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。
n. 生态系统
Read the third paragraph
1. WildAid and the WWF are environmental protection groups in China. × 2. Shark’s fins are good for health. ×
Read the passage about sharks and 跟踪练习 complete the fact sheet below. 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” southern China 70 million over 90 percent
Unit13 We’re trying to save
the earth.
Section A(3a-3b)
复习回顾
Translate these sentences into English. 1. 甚至是河底都满是垃圾。 Even the bottom of the river was full of rubbish.
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。
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 only…but 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。
教师强调
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. I’m no longer a student. 我不再是个学生了。 有两个短语和no longer同义,即 not…any longer和not…any more,但他 们侧重的方面不同。
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 食物链 in the ocean’s ecosystem. ×
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由动词转化的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。
课堂小结
总结本节课重点词汇及课文中 的重点词句。
Retell the passage according to the words below.
shark fin soup in southern China each time cut off no longer not only…but also… at the top drop be endangered the strongest around 70 million fallen by over 90 percent WildAid and the WWF develop laws scientific studies
WildAid and the WWF
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 ______ when they enjoy a bowl of shark fin soup. 2. Sharks are at the top of the food chain, ____ so if their numbers drop, the ocean’s ecosystem will be in danger.
3. Sharks are at the top of the food chain in the ocean’s 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, 头发闪亮且平滑的分 开。
学习目标
1.学习并掌握本课重点单词、短语。 2.理解重点句子。 3.理解并翻译课文。
学习任务一
1.自学本节课重点单词、短语。 2.纠正发音。
学习任务二 The earth is badly polluted. What should we do to save the earth?
*Take buses instead of driving cars. *Turn off the lights when you leave a room. *Recycle books and paper.
3. Many think that sharks are too strong to be endangered, _____ but they are wrong. 4. _________ Although there are no scientific
adj. 科学上的,科学的
studies to support this, a lot of people believe that shark fins are good for health. 5. Sharks may disappear one day ___ if we do not do something to stop the sale of shark fins.
no longer和not…any longer侧重时间。 e.g. He no longer lives here. = He doesn’t 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。) not…any more侧重程度和数量 e.g. You can drink no more. = You can’t 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。)
e.g. She not only plays well, but also writes music. 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。
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。
Read the first paragraph
1. Shark’s fin(鱼鳍)soup is famous and expensive all around the world. ×
2. We have to kill a whole shark to get a bowl of shark’s fin soup. √
当堂检测 一、用所给单词的适当形式填空。 1. I saw two ______ (fisherman) selling fishes in the market. 2. Throwing ______ (litter) away isn't allowed. 3. He has many ______ (advantage). We like to get on well with him. 4. The best ______ (method) to protect the environment is to avoid kinds of pollution. 5. The price of these oranges is ______ (low) than that of those apples.
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. 吸烟有害健康。 Playing computer games much is harmful to students. 电脑游戏玩太多对学生有害。