初二第一學(xué)期教案環(huán)保

1、Unit 7 EnvironmentPeriod 1Objectives1To learn the cause of the Greenhouse Effect2To learn how to be a green consumerPreparations1SB 8A, pages 98 to 1002Photocopiable page 1Teaching procedurePre-reading preparation1 Ask students to read the first paragraph and the headings in the review. Then try to

2、answer three questions.Check the answers:1The name of the book is The Young Green Consumer Guide.2A green consumer is someone who only buys goods that will not harm the environment.3The main topic of the book is which goods are harmful and which are environmentally friendly.4Five.2Work in groups. As

3、k students to think about the following questions and try to find out the possible answers.1What is happening to the ozone layer?(Huge holes have appeared over the North and South Poles.)2What will the result be?(Dangerous ultraviolet radiation from the sun will reach us, causing cancer and blindnes

4、s, and destroying the food chain in the oceans.)3What are we cutting down without thought?(Tropical rain forests.)4What causes global warming?(Pollution from burning carbon-based fuels like petrol, oil, coal and wood.)5What should we do with our rubbish?(Sort it out and recycle glass, plastic, paper

5、 and metal.)1 What can ordinary people do?(Buy environmentally- friendly products and be less wasteful with paper and plastic.)2 If you look after the environment, what color do we say you are?(Green.)While-reading procedure1Ask students to read the following words from the article and choose the be

6、st meaning from those listed below.1consumer(A) a person who sells things to people(B) a person who buys goods or uses services2imagine(A) to form a picture in mind(B) to think about something3atmosphere(A) the mixture of gases which are around the earth(B) the surroundings4act(A) a law that has bee

7、n passed by a parliament(B) to perform a certain part5lifeless(A) without any form of life(B) with different forms of life6cause(A) the person or thing that makes somothing happen(B) to make something happen7level(A) the height of something in relation to the ground or to what it used to be(B) a par

8、ticular standard or quality8flood(A) a large amount of water covering an area that is usually dry(B) a very large number of people or things that appear at the same time9soil(A) a large piece of area(B) the top layer of the Earth in which plants, trees, etc, grow10reach(A) get to(B) stretch your han

9、d far enough in order to touch something or pick something up11environment(A) the atmosphere around the Earth(B) the natural world around us2Check the answers orally.1 B 2 A 3 A 4 B 5 A 6 B 7A 8 A 9B 10 A 11 BRead the above words and expressions aloud.3Ask students to read the following words from t

10、he second article and choose the best meaning from those listed below.1view(A) opinions and ideas(B) the sight of something2village(A) a city centre(B) a very small town situated in a country area3wealthy(A) rich(B) poor4possession(A) money that people have(B) things that people have5reduce(A) to ma

11、ke something less or smaller in size, quantity, price, etc(B) to make something more or larger in size, quantity, price, etc6improve public transport(A) make transportation more convenient(B) make more roads7overpopulation(A) too much population(B) enough population8engine(A) a kind of vehicle to he

12、lp put out fires(B) the part of a vehicle that produces power to make the vehicle move9jam(A) a situation in which it is difficult or impossible to move because there are too many people or vehicles(B) a thick sweet substance to spread on bread10neighbourhood(A) a district or an area of a town(B) a

13、person who lives next door to your or near you4Check the answers orally.1 A 2 B 3 A 4 B 5 A 6 A 7A 8 B 9 A 10 A5Ask students to finish ExerciseA3, B1 and B2 on page 99 and Exercise B3 on page 100. Then check the answers.1 Play the recording. Students listen and repeat the articles.Post-reading activ

14、ities1Ask more able students to make a list of the causes of the Greenhouse Effect. Then ask less able students to repeat them.2Think about other reasons that might cause the Greenhouse Effect. Students can surf the Internet to find out the solutions to the problems.Consolidation1Copy the new words.

15、2Re-read the article and try to use their own words to say something about the Greenhouse Effect.3Do exercise in photocopiable page 1.Photocopiable page 11Match the words in Column A with their meanings in Column B.（將A欄中的單詞與其B欄中的正確釋義配對。）AB( )( )( )( )( )( )( )( )( )( )( )( )1 atmosphere2 flood3 cons

16、umer4 imagine5 lifeless6 reach7 cause8 level9 act10 drowna) without any form of lifeb) make a picture of something in your mindc) get tod) a lot of water spreading over the lande) the mixture of gases which are around the Earthf) someone who buys somethingg) kill by covering with waterh) how high so

17、mething isi) make happenj) do something or behave in a certain way2Ben is asking Lucy about the review, but he doesnt make himself clear. Replace the italicized words with information from the review.（本正在問露西一些有關(guān)這則書評的信息，但他還是沒有搞清楚。你能否用書評中的信息替換下列句子中斜體部分的代詞？）1 The writer compares the atmosphere to it._2

18、 They say were polluting it with chemicals._3 Without it, Earth would be as cold and lifeless as the surface of the moon._4 The burning of the rainforests makes it worse._5 These are bad habits._6 They are enough to reach from Earth to the moon._7 They only buy and use “environmentally friendly” thi

19、ngs._1 Jenny is talking to a friend. Use each of the words or phrases in the box once to complete the dialogue below.（珍妮正在和一個朋友聊天。用方框中所給的單詞或短語完成他們的對話。）traffic jamenginesabroadwealthyimprovedreduceneighbourhoodpublic transportMrs Guo:Hello, Jenny! I havent seen you for years.Jenny:No. Ive lived (1) _

20、 for five years. I just came back recently.Mrs Guo:Well, welcome back. What do you think of our (2) _?Jenny:It looked much better than before. It has (3) _ a lot. It was a small (4) _ many years ago. But now it looks very modern.Mrs Guo:Yes. People here are (4) _ now. They buy new, big flats to live in now. A lot of tall buildings have been set up here.Jenny:I think the (5) _ is also convenient. Youve got a new bus station, ferries and a new road to the city centre.Mrs Guo:Thats right. We dont need to sit in