八年级仁爱英语Unit4Topic1SectionC

1、Topic 1 Which do you like Topic 1 Which do you like better, plants or animals ?better, plants or animals ?earth n. 地球；土，泥；大地地球；土，泥；大地Look at the pictures and check which Look at the pictures and check which questions the passage can answer. questions the passage can answer. 1.What are rainforests?2.

2、How many animals are living in rainforests?3.Where do animals live in rainforests?4.What can we get from rainforests?5.Why are rainforests important to us?学习目标1. Learn some new words and phrases: thick, forest, ground, wet, cover, earth, surface, thousands of, control, die out, wood, protect2. Go on

3、 learning the structure of comparative and superlative degrees of adjectives: (1) The plants in the forests help to make the air fresher and cleaner. (2) Rainforests give us wood, food, fruit, medicine, and many more useful things. (3) But now, rainforests are becoming smaller and smaller, so we sho

4、uld protect them.3. Talk about the basic situation about the water resource and tropical rain forests and their importance to the earth.预习导纲：1、单词互译与记忆 1) 茂密的_2) 森林_ 3）覆盖_ 4) ground_ 5) surface_ 6) control_ 7) protect _2、短语互译与记忆 1) 成千上万_ 2) 地球的肺_3) 越来越小_ 4) 在方面起重要作用_5) 灭绝_3、句子理解与熟读 (1).Rainforests co

5、ver 6% of the earths surface. (2)Thousands and thousands of animals live in the rainforests. (3) The plants in the forests help to make the air fresher and cleaner. (4) They play an important part in controlling the climate. (5) Without rainforests , many beautiful plants and animals would die out.选

6、词填空 control, cover, beautiful, easy, protect1) Water_most of the earth.2) Forests can help to make the air fresher. They also help to_the weather.3) We should _ environment to make our cities more beautiful4) Lesson 5 is _than Lesson 65) This rose is _than that one.coverscontrolprotecteasiermore bea

7、utiful单项选择。( ) 1. _ watched the Beijing Olympic Torch Relay(火炬接力） in Zhengzhou. A. Thousands people B. Thousands of people C. Ten thousands people D. Thousand of people( ) 2. Five _ people are waiting for the train. A. hundred of B. hundreds C. hundred D. hundreds of( ) 3. The snake is one of _ in t

8、he world. A. the most dangerous animal B. dangerous animal C. the most dangerous animals D. more dangerous animals( ) 4.The number of wild animals is becoming _ A. much more small B. much more smaller C. smaller and smaller D. small and small( ) 5. The girl is _than the other girls. A. more careful

9、B. much careful C. the most careful D. carefulCCCABWatch the flash of 1a, and find out the answers.What can rainforests give us ?What can rainforests give us ?视频视频1a-P851aRainforests give us Rainforests give us foodfoodmedicinemedicineRainforests give us fruitsfruitsRainforests give us Listen to 1a

10、and complete the table. Then Listen to 1a and complete the table. Then check with your partner.check with your partner.Feature of rainforests1.in the _ parts of the world2._ ground and always _ and _ in them3.cover _ of the earths _ 4.give a home to many beautiful _ and _Importance of rainforests1.m

11、ake the air _ and _ 2._ the water and keep the water_3. control the _ 4. keep the beauty of _ 5. give us _, _, fruit, _ and so onhotwetdarkhot6%surfaceplantsanimalsfreshercleanerholdcycling climate naturewoodfoodmedicine1b录音录音1a-P851cRead again and answer the questions.Read again and answer the ques

12、tions.1. What does the word “cover” mean in Paragraph 1 ?2. Why are rainforests the lungs of the earth ?It means “覆盖覆盖”.Because the plants in the forests help to make the air fresher and cleaner.1cRead again and answer the questions.Read again and answer the questions.3. Why should we protect rainfo

13、rests well ?4. Can you guess what the next part of the passage will talk about ?Because they help to hold the water and keep the water cycling. They play an important part in controlling the climate.Yes. The next part may talk about what we should do to protect rainforests.The last sentence in a par

14、agraph may tell you what comes next.1cRead again and answer the questions.Read again and answer the questions.5. What should we do to protect rainforests ?We should save paper and mustnt use the chopsticks for only once.数词数词 % +of+可数名词复数可数名词复数可数名词单数可数名词单数 / 不可数名词不可数名词 Eg: 50% of the students in our

15、class are boys. 70% of the earth is water.成千上万的成千上万的成百上千的成百上千的成百万上千万的，数以百万计的成百万上千万的，数以百万计的hundreds of2.Thousands and thousands of【链接】两千本书 two thousand books ； 四百个学生four hundred students思考：“与具体数字相连时”，hundred，thousand后面是加s，还是不加s ？_ 几千人 a few/ several thousand people (注意：thousand有没有加s)思考：hundred，thousa

16、nd被_和_修饰时，hundred，thousand不加s。3. Many of them live in the trees over 30 meters from the ground. over = more than 多于，多于， 超过超过 eg: Our class has _ 50 students.4. They play an important part in controlling the climate. play an important part ( in sth.) 在某事中起重要作用；在某事中起重要作用； 参与（某事）参与（某事） Eg: 他积极参加班级活动。他积

17、极参加班级活动。 He _ class activities. over/more thanplays an active part in5. But now rainforests are becoming smaller and smaller.“形容词比较级形容词比较级 + and + 形容词比较级形容词比较级” 越来越越来越Eg. 天气变得越来越暖和了。天气变得越来越暖和了。The weather gets warmer and warmer. 中国变得越来越强大。中国变得越来越强大。China becomes stronger and stronger.越来越小越来越小思考思考:当多

18、音节的形容词表达当多音节的形容词表达“越来越越来越”时，该如何表达时，该如何表达? _ _ _ + _【练一练练一练】：越来越漂亮：越来越漂亮_； （beautiful） 越来越重要越来越重要_； （important）Discuss the pictures in groups about Discuss the pictures in groups about how to protect rainforests. Then how to protect rainforests. Then write a short passage.write a short passage. show

19、and tell people about do anything we can，such as ask people not to ask people not to cut Lets plant You can write like this :You can write like this : Rainforests are very important to us. It is necessary for us to protect them very well. First, we should make people know about the importance of pro

20、tecting them. Then ask people not to cut down the trees without plans. For us, we should do something as possible as we can. When we have meals, we mustnt use chopsticks for only once. In the life, use less paper and be sure not to waste it. 快速阅读。 Do you know why different animals or pests (害虫) have

21、 their special colors？Colors on them seem to be used mainly (主要地) to protect themselves. Some birds like eating locusts (蝗虫), but birds cannot catch them easily. Why? Because locusts change their colors according to the colors of crops (庄稼). When crops are green, locusts look green. But as the harve

22、st time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others, so they have to hide (隐藏) themselves and appear (出现) only at night. If you study animal life, youll find the main use of coloring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎