九年级英语上册Unit 2 Topic 2 All these problems are very serious教案 新仁爱版.docx

1、九年级英语上册Unit 2 Topic 2 All these problems are very serious教案 新仁爱版Unit 2 Topic 2 All these problems are very seriousTeaching Aimsa. Words and expressionsas a result, behavior, in the beginning, day by day, die outsand, cut down, change into, prevent, prevent from, human being, although, law, turn offo

2、n earth, period, millions of, take away, rise, level, refer tob. Patterns:. (1) None of us likes pollution. (2) Dont spit anywhere in public. (3) Everyone should care for wild animals and plant more trees. (4) We should do everything we can to protect the environment. c. Grammar:Learn the indefinite

3、 pronoun and adverbTeaching focus: Learn the indefinite pronoun and adverbAbout the time； This topic needs 5 periods. 总第22课时 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section ATeaching aims and demands 1. Learn a new word and some phrases:as a result, behavior, in the begi

4、nning, day by day, die out 2. Learn some useful sentences: (1)As a result, air pollution has become a serious problem. (2)Humans have come to realize the importance of protecting animals. 3. Learn the indefinite pronoun and adverb:(1) None of us likes pollution. (2) Dont spit anywhere in public. (3)

5、 Everyone should care for wild animals and plant more trees.Teaching focus: Learn the indefinite pronoun and adverb:Teaching procedure:Step 1 Review T: It is too dirty and there is too much heavy smoke outside. I cant stand it.Ss: Is it air pollution?T: Yes, it is.Step 2 Presentation 1.T: Do you lik

6、e the environment here?Ss:No, we dont.T: Why?Ss: Because there is too much smoke.T: Yes. We should stop burning coal. It is said that China has become the worlds largest producer and user of coal. As a result, air pollution has become a serious problem.T: Now our government has realized the importan

7、ce of protecting the environment.T: We should do something useful to protect the environment, too.2. Listen to the tape, and answer the questions on the small blackboard. 3. Read 1a again, and try to find the indefinite pronouns or adverbs.Step 3 Consolidation work in pairs. Try to make a new dialog

8、 with your partner according to the dialog in 1a. Then Ill ask some pairs to act out your own dialog in the front of the classroom. S1: Whats it about?S2: Its about the environment in the world. It says that our environment is getting worse and worse. And the pollution has been the most serious prob

9、lem in the world. S1: Yes. But its lucky that lots of governments have done something useful for the protection of environment. S2: Its known that nobody likes pollution. But what should we do as students? S1: I think, first, everyone should try to protect the environment around us and we shouldnt s

10、pit or throw the rubbish here and there. We should protect the wild animals and plants. S2: Thats right, we should do as much as possible to protect our earth. Step 4 Practice Fill in the blanks None of us should step on the grass. Dont throw rubbish everywhere. Nobody should pick the flowers. Dont

11、spit anywhere. Everyone should care for animals. Homework: Recite one pasage and write them down.DesignAll these problems are very serious. Section Aas a result But the government is doing something useful to protect the environment.something useful None of us likes pollution.in the beginning Dont s

12、pit anywhere in public.day by day Everyone should care for wild animals and plant more trees.die out We should do everything we can to protect the environment.Thoughts after class 总第23课时 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section BTeaching aims and demands 1. Learn

13、some new words and phrases:sand, cut down, change into, prevent, prevent from, human being, although, law, turn off2. Learn some useful sentences: (1) I couldnt see anything, and my face hurt while I was walking down the street just now. (2) Pass laws against water pollution. (3) Remember to turn th

14、e tap off when you leave.3. Continue to learn the indefinite pronoun and adverb.Teaching focus:Learn to talk about pollution and its harm.Teaching procedure: Step 1 Review Fill in the blanksnoneothersomethingEveryoneeverybodynobodyanythingeverywhereanybodyothers(1) None of us knows how to stop the b

15、ad behavior.(2) I knocked on the door but nobody answered.(3) Some of these books are better than others.(4) She was driving the car with one hand and wiping the window with the other.(5) Its a good car but I am looking for something faster.(6) You cant believe anything she says.(7) Therere 5 000 pe

16、ople living here and almost everyone/everybody has his/her own car.(8) Hes cleverer than anybody I know.(9) Ive looked everywhere but I cant find it.Step 2 Presentation 1. Talk about the pictures like this: T:Look at these pictures then tell me your feelings. First look at Picture 2.Is the scenery b

17、eautiful? Ss: Yes.T: OK. Lets look at Picture 4. Is it beautiful?Ss: No.T: What has happened to the forest?Ss: It has gone.T: Yes. People have cut down too many trees. T: Do you know the relations between trees, human beings and sandstorms? Do you know how sandstorms come into being? Now please look

18、 at the pictures in 1c and number them. 3. Now listen to 1a, and answer the questions on the blackboard. (1) Whats the weather like today?(2) What should we do to protect the environment? 4. work in groups. Find and talk about the language points and difficult points, then Ill ask some students to g

19、ive their answers to class. Step 3 Consolidation Read after the tape,try to repeat the materials Step 4 Practice Talk about the ways to protect our environment in groups.Homework: (1) Find out more information about water. (2) Write a short passage with the title “Protecting and Saving Water”.All th

20、ese problems are very serious. Section BI couldnt see anything, and my face hurt while I was walking down the street Trees can stop the wind from blowing the earth away. Pass laws against water pollution. although / but Remember to turn the tap off when you leave. turn off prevent from =stop from De

21、signThoughts after class总第24课时 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section CTeaching aims and demands 1. Learn some new words and phrases:on earth, period, millions of, take away, rise, level, refer to2. Learn some useful sentences: (1) When it rains or when the wind

22、 blows, the earth is taken away. (2) The heat from the sun cant escape so the temperature is rising.3. Learn to talk about the harm of pollution:(1) Forests have become deserts, so more and more sorts of animals and plants are disappearing.(2) As a result, many rivers and lakes are now dead. (3) Too

23、 much harmful radiation from the sun passes through the hole and reaches the earth directly.(4) It causes the level of the oceans to rise and the climate of the earth to change.Teaching focus: Develop the students sense of environmental protection. Teaching procedure: Step 1 Review T: How do you pro

24、tect our environment and save water?S1: Everyone should plant more trees.S2: We should do everything we can to save water.S3: Everybody should know the importance of forests.S4: Pass laws against water pollution.S5: Collect and reuse waste water.Step 2 Presentation 1. Use the PPT and Flash to learn

25、the new words and expression. 2. Read 1a，listen to the tapes and fill in the blanks We humans have lived on earth for only 35 000 years, but during this period we have changed our planet a lot in many ways. Now read the passage and then choose a proper title for each paragraph from the phrases above

26、 the passage. 3. Answer these questions(1) Have we changed our planet in many ways?(2) Have people done good to the earth?(3) Why are more and more sorts of animals and plants disappearing?(4) Are many rivers and lakes dead now?(5) Is ozone important to the earth? Why?(6) Has carbon dioxide in the a

27、ir increased a lot?Step 3 Consolidation According to 1a, finish the form on the blackboard. Step 4 Practice Read the passage again, discuss the meanings of the following expressions in groups of 4, and then write down how they affect the environment.Kind of pollutionEffectHomework: Write an article

28、about the pollution. DesignAll these problems are very serious. Section Cmillions of When it rains or when the wind blows, the earth is taken away.take away As a result, many rivers and lakes are now dead. refer to The heat from the sun cant escape so the temperature is rising. It causes the level o

29、f the oceans to rise and the climate of the earth to change.Thoughts after class总第25课时 Unit 2 Saving the Earth Topic 2 All these problems are very serious. Section DTeaching aims and demands 1. Learn some useful sentences: (1) This harms the environment (2) At the same time, dealing with (3) Of all

30、the garbage, about 35 percent can be recycled while the rest cant. (4) How shall we deal with it? 2 .Review the indefinite pronoun and adverb:Teaching focus: Go on developing the students sense of environmental protection. Teaching procedure: Step 1 Review T: After learning Section C, we have known

31、that many kinds of pollution affect our environment. How do factories affect our environment?S1: They / Factories have polluted the land and the water. S2: Factories make some rivers and lakes dead now.S3: T: Very good. How do cars and buses affect our environment?S4: They have polluted the air. S5: They have caused noise pollution. S6: T: How does cutting down too many trees affect our environment?