英语八下冀教版Unit4：学案【Topic 1 Section C学案】.doc

1、英语八下冀教版 Unit4：学案【Topic 1 Section C 学案】 Unit 4 Topic 1 Section C 学案 一. 学习内容1 阅读对热带雨林及水的介绍性短文。2 继续学习比较级和最高级。二、学习要求 1.必会主要生词和短语cover, earth,surface, dark, forest, control, wood, rubber, protectfact, everything, lake, sea, ocean, dropthousands of be very important tobe necessary for smaller and smalleri

2、n fact make upcant live without save every drop of water2.必会主要句型 (1)The plants in the forests help to make the air fresher.(2)But now rainforests are becoming smaller and smaller.(3)Water makes up the largest part of the human body.3.Describe nature resource and realize the importance of environment

3、 protection:(1)They also help to control the weather.(2)The rainforests give us wood, rubber, fruit, medicine and so on.(3)It is important to all living things.(4)We must save every drop of water.三、本节课的学习要点及考点1.Rainforests cover 6% of the earths surface.热带雨林覆盖地球表面的百分之六.百分数的读法:先读基数词,再读百分号 %percent6%读

4、作: six percentcover 覆盖Water covers most parts of the earth.2.Thousands and thousands of animals live in rainforests.千千万万的动物生活在热带雨林.当 hundred,thousand,million,billion 等表示不确定的数目,表示一个大概的数量,常用复数形式,后面跟介词 of ,意思为,数以百计的，成千上万的 ,数百万计的,几十亿的.当这些词与具体数字连用时不用复数形式.Five hundred,six thousand. 3.Many of them live in

5、the trees over 30 meters from the ground. over = more than 多于,超过的意思.More than/Over 100 students are planting trees. less than 少于,不超过They lived in Shanghai less than a year. 4.In fact,water makes up the largest part of the guman body. make up 形成,组成,构成.Girl students make up only 40% of all the student

6、s.5.We must save every drop of water. drop 名词,滴A drop of water 还可以当动词,掉下,放弃A bottle dropped onto the floor.四、学习过程课前(Before class)1注出下列词汇的意思并识记(Write their Chinese meanings and try to remember them.)cover ,earth,surface,dark,forest.control,wood,rubber,protect,everything,lake.sea,_ocean,drop._2翻译下列词组(

7、Translate these phrases)_成千上万的 _对是重要的_使空气更清新 _控制气候_越来越小 _对是必需的_大量,许多 _事实上.实际上_组成 _节约每一滴水3.预习 1a,写出热带雨林的重要性,写成短语形式即可.( 课堂上交流时用)(Write down the importance of the rainforests)如:make the air fresher _the lumgs of the earth _control the climate _你还可以从以下两篇小短文中获取信息/.WHY ARE RAINFORESTS IMPORTANT? Rainfores

8、ts are important to the global ecosystem. Rainforests: provide a home to many plants and animals; help stabilize the worlds climate; protect against flood, drought, and erosion; are a source for medicines and foods; support tribal people; and are an interesting place to visit TreesfunctionsTrees can

9、 stop the wind from blowing the earth away.A lot of water can be saved by forest.They can also prevent the water from washing the earth away.课中(In class)1.Listen to 1a,answer the following questions:（1）What covers 6% of the earths surface?（2）Where do thousands and thousands of animals live? （3）Are t

10、he rainforests very important to us?（4）What can rainforests give us? Choose the right answers.A.wood B. rubber C. fruit D. medicine E. metal（5） Are the rainforests becoming much smaller than before?（6）Should we protect them well?2. .Listen to 2a,answer the following questions:（1）What do humans need

11、water to do ?（2）Where is the water ?3. Exercises：Fill in the blanks according to what we have learned in this lesson.Rainforests are very _ to us.They _ 6 of the earths _.There are _of different plants.The plants can make the air_.They also can _ the climate. We can get _,_,fruit,medicine and so on.

12、We must_ them well.All the plants and animals in the rainforests need _ .Water is _ for all the living things.Humans also need water.We cant live _ water.In_,water _up the largest part of the human body.But now water is becoming _ and_little.We must save water .If we dont ,the last _ of water will b

13、e a teardrop.课后(After class)AA rainforest is a very thick, warm and wet forest. The weather there is very steady. It is never very cold or too hot. The temperature is usually between 24-27 C. Besides, it rains very often, perhaps every day.Rainforests, where millions of plants are grown, are very im

14、portant to people, animals and the world. Rainforests, which make much oxygen, recycle and clean the earths air.Unfortunately, rainforests are becoming fewer and fewer each day. When the earths population grows, people cut down the rainforests for homes and farming. Rainforests protect us. Shouldnt

15、we protect them?forest森林 thick茂密的 steady穩定的 oxygen氧气 population人口 ( ) 1. What do rainforests do to the earths air? (A)They make it fewer and fewer. (B)They make it warm and wet. (C)They recycle it. (D)They pollute it.( ) 2. Whats the weather like in a rainforest?(A)It is almost the same every day. (

16、B)It rains a lot in summer, but seldom rains in fall. (C)It changes a lot every day. (D)It is very hot, especially in summer.( ) 3. According to the article, why are rainforests important to us? (A)There is a lot of rain in the rainforests. (B)They make much oxygen to clean and recycle the air.(C)Ma

17、ny people live in the rainforests. (D)If rainforests disappear, we will have no wood to cut.BTrees are useful to man in three important ways.The first important way is that they provide(提供) man with food, wood and the other products. Trees provide not only man with food, but also many animals with f

18、ood. Without trees many animals could not live on the earth. Its not easy for man to live on the earth, either.The second important way is that trees give us shade(阴凉). On a hot summer day, people are eager(渴望 ) to have a rest under the tree after they have a long walk. You can imagine how important

19、 the shade of a tree is to man and animals.The third important way is that trees help to prevent droughts and floods(防止干旱和洪水). However, in many parts of the world, man hasnt realized the third way. They were cutting trees down in large numbers. In the end they find that they have lost the best friends they had.根据短文内容，回答下列问题。4. How many important ways are trees useful to man?_5. Trees only provide man with food, dont they?_6 On a hot summer day, what do trees give us?_7. What does the underlined word “they” means？_8. Whats the best title of the passage?_