Unit 13 Section A 3a_3b 课堂练习达标
一、根据句意和首字母提示完成单词
1）Even the b_____ of the river was full of rubbish.21教育网
2)We must save the e_____ animals.
3)The air is b____ polluted.
4)We can’t a_____ to wait any longer to take action.21cnjy.com
5)I’m afraid that this serious accident did h_____ to his eyes.www.21-cn-jy.com
二、用所给单词的适当形式填空
6）It’s good for health and it doesn’t ______ (cost) anything.2·1·c·n·j·y
7)There are no scientific studies ______(support) it.21·cn·jy·com
8)There _______(use) to be a lot of manatees(海牛).
9)So far, Man_______(travel) farther than the moon.21世纪教育网版权所有
10)Look! He ______(play) football.
Unit 13 Section A 3a_3b 教学设计
学习目标：
知识技能：
Grammar: Review of key structures.
We are trying to save the earth.
The river used to be so clean.
It was considered the nicest river in town.
We should help save the sharks.
Words and expressions;
shark, cruel, harmful, chain, ecosystem, industry, law, scientific, afford, reusable, transportation21教育网
be harmful to, at the top of, the food chain, take part in, turn off, pay for, take action www.21-cn-jy.com
过程方法：
Show pictures of sharks to students .Let Ss think and answer the following questions.2·1·c·n·j·y
What do you know about sharks?
Do you think sharks can be endangered? Why?
What do you think might cause a full in the number of 【来源：21·世纪·教育·网】
Sharks?
情感态度：
Animals are our friends． We must know how to love them and how to protect them． That way, it is good for both animals and us．21·世纪*教育网
教学重点、难点
Important words and phrases: cruel harmful industry law21世纪教育网版权所有
Scientific be harmful to at the top of the food chainwww-2-1-cnjy-com
Grammar:(1)现在完成时
(2)现在进行时
(3)情态动词should 的用法
(4)被动语态
教学时数：1课时
一：导入 展示动物的图片，引出本节话题：
1) Do you like animals?
2） How do you help protect the endangered animals?2-1-c-n-j-y
A: Have you ever seen sharks?
B: Have you heard of shark fin soup?
Today we will learn the passage “Save the Sharks!”21*cnjy*com
二、Learning more about sharks
1) Now listen to the tape ,first listen to paragraph 1 and find out how to describe the shark fin soup. (Listen and answer)【来源：21cnj*y.co*m】
2) Shark fin soup is popular in southern of China. So how to make shark fin soup, go on listening paragraph 2 and find the answer.【出处：21教育名师】
3) Listen again and answer the two questions. (On the screen ) 【版权所有：21教育】
4) Although sharks are at the top of the food chain in the ocean’s ecosystem. We know sharks are endangered animals, so what can we do to help them? Go on listening to paragraph3 and find out the two environmental protection groups against Finning.
5) Read the whole passage and complete 3a.( Let a few students answer ,then check the answers in class.)21教育名师原创作品
6) Read again and complete 3b and check the answers.21*cnjy*com
三、Language points （On the screen ）
四、 Do the exercises (On the screen当堂达标评测)
五、 课堂小结：学生总结之后，播放没有买卖，就没有杀害的宣传片，号召学生从我做起，进行宣传，保护环境。21·cn·jy·com
六、Homework (On the screen)
板书设计:
I .Match the following:
hear of 不再
cut off 割掉，砍掉
no longer 到目前为止
not only…but also 对……有害
be harmful to 给……带来危险
bring danger to ……的数量
the number of 听说
so far 不但……而且
Language points :
1 no longer 位于be，情态动词之后
常与number搭配的动词drop, grow, fall等。当表示数值的高或低时， number要用high或low修饰。21cnjy.com
2 Not only the man but also the women ________ (be )chosen.
Not only you but also he ______(have)to leave.
3 be harmful to=do harm to
教学反思
让学生回答问题时，教师不必急于判断对错，而应让学生带着
问题去阅读课文。
2. 应让学生关注文章细节，独立完成活动3b.
3. 能让学生根据信息复述课文。
课件25张PPT。1.Do you like animals? 2.How do you help protect the endangered animals? Section A 2
3a-3bSave the sharks1.Have you ever seen sharks ?2.Have you heard of (听说）shark fin soup(鱼翅汤）?Wordsshark
fin
cruel
be harmful to
at the top ofthe food chain
ecosystem
industry
law
scientificUse some words to describe the sharksbiglargecruelscaringdangerousterribleSharks are at the top of the food chain in the ocean’s ecosystem.A food chainWho is the real king of the food chain?Human beingsshark fin soupfamousexpensivepopularHow do people make a bowl of shark fin soup?Cut off shark’s finThrow the shark back into the ocean.3、Can the shark live long without the fin?1、Can the shark swim without the fin?2、Can the shark catch food without the fin?The shark will die slowly without the fin.徐 x p ==A bowl of fin soup the life of a whole shark xxp1.Every year, _______ sharks are caught and traded in this industry.
around 70 million
B. around 90 million
2.The numbers of some sharks have fallen by ________ in the last 20 to 30 years.
over 10 percent
B. over 90 percent
ABTwo environmental protection groups
Wild Aid and World Wild Fund for Nature
They are teaching the public about “finning”.
They have asked governments to develop laws to stop the sale of shark fins.
In southern ChinaAround 70 millionOver 90 percent WildAid and the WWF3aRead the passage about sharks and complete the fact sheet below.3bRead the passage again and fill in the blanks with the words in the box. 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 ocean’s
ecosystem will be in danger.whenso3. 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.butAlthoughifadj. 科学上的，科学的Studying useful words and expressions.
1.This method is not only cruel, but also harmful to the environment.这种方法不仅残酷，而且对环境有害。【解析】
1).not only…but also…意为_____________, 用于连接两个表示并列关系的成分，着重强调后者，其中的______有时可以省略。
2). harmful 形容词，意为“有害的”, 常构成短be harmful to“对??有害的=do harm to
Reading in the sun does harm to our eyes. = Reading in the sun ___ ___ ___ our eyes.【解析】No longer意思是“不再”，其确切含意为某状态在某个时刻之后不再继续下去了。所以，当你从学校毕业了，就可以说：I'm________ _________ a student.我不再是个学生了。
2.Without a fin, a shark can no longer swim and slowly dies. 没有鱼鳍，鲨鱼不再会游泳并且慢慢死去。
3.The numbers of some kinds of sharks have fallen by over 90 percent in the last 20 to 30 years. 在过去的二三十年里，一些种类的鲨鱼的数量下降超过90%。【解析】其中 the number of 的意思是________________,我们还学习过 a number of 其意思是____________,表示“许多”相当于many，修饰可数名词复数形式。
4. play a part in扮演某角色; 与…有关，对…有影响
I'd like to play a part in their discussion. 我愿意参与他们的讨论。
Education is playing a big part in environmental protection.
教育在环境保护中起着很大作用。
He played a part in his favorite TV show.
他在他最喜欢的电视节目中扮演了一个角色。回顾小结这节课，我知道了—— 没有买卖，就没有杀害，动物是我们的朋友，保护频临灭绝的动物更是我们的责任。让我们行动起来，为某报社投一篇稿子，向人们说明鲨鱼的现状，面临的处境，呼吁全社会要爱护鲨鱼！
Love animals ,love ourselves.HOMEWORK!X x p
