上海牛津英語(yǔ),初三年級(jí),第二學(xué)期教案

1、9b unit 1 saving the earth 章節(jié)綜述章節(jié)分析（reading section ）（一）綜述本單元是關(guān)于一本有關(guān)地球環(huán)境的處于危險(xiǎn)的書?，F(xiàn)在對(duì)地球環(huán)境存在很多威脅。，本文通過(guò)五個(gè)方面來(lái)描述地球所面對(duì)的危機(jī)，學(xué)生通過(guò)閱讀和分析，培養(yǎng)學(xué)生良好的環(huán)境保護(hù)意識(shí)，讓他們感覺到制止污染已經(jīng)成為一個(gè)刻不容緩的問(wèn)題。 本課的任務(wù)有兩個(gè)：1 對(duì)課文進(jìn)行整體閱讀。培養(yǎng)學(xué)生略讀（獲取大意）、掃讀（整理有關(guān)信息）、細(xì)讀（分析篇章結(jié)構(gòu)，概括中心）等的閱讀技能。2 結(jié)合課文內(nèi)容，引導(dǎo)學(xué)生談?wù)労蛯懽魅绾巫龅奖Ｗo(hù)環(huán)境，提高保護(hù)環(huán)境意識(shí)。 （二）單元目標(biāo)1 知識(shí)與能力：學(xué)習(xí)課文中重點(diǎn)單詞、詞組、句型和語(yǔ)

2、法；了解課文大意。學(xué)會(huì)使用 as.as 來(lái)比較物品和事情動(dòng)詞ing的多種使用形式提高學(xué)生的閱讀理解能力和培養(yǎng)學(xué)生的閱讀技巧。通過(guò)閱讀準(zhǔn)備（收集與樹木作用、污染有關(guān)的資料）、略讀（獲取大意）、掃讀（整理相關(guān)信息）等方式，培養(yǎng)學(xué)生理解能力，信息處理能力，思維能力，繼續(xù)培養(yǎng)學(xué)生閱讀能力。 2 過(guò)程與方法采用任務(wù)型教學(xué)法組織教學(xué)，通過(guò)比較、歸納、討論等具體活動(dòng)，達(dá)到教學(xué)效果。3情感態(tài)度與價(jià)值觀讓學(xué)生認(rèn)識(shí)到保護(hù)環(huán)境的重要性，并決定為環(huán)保出一份力，做綠色環(huán)保者。（三）重點(diǎn)和難點(diǎn)壯語(yǔ)從句sothat 和so thatfirst periodteaching aids:1. students book2. c

3、assette playernew words and expressions:1. green consumer 綠色消費(fèi)者2. in danger 處于危險(xiǎn)中3. global warming 全球變暖4. vital 致命的，重要的5. save the earth 拯救地球6. first of all 首先7. threat 危險(xiǎn)，危害，威脅8. environment 環(huán)境9. the greenhouse effect 溫室效應(yīng)10.imagine 想象，設(shè)想11.atmosphere 大氣12.fuel 燃料13.keepfrom 阻止做某事14.warmth 溫暖，暖和15.

4、lifeless 無(wú)生命的16.pollute 污染17.chemical 化學(xué)藥品18.in the form of gases 以氣態(tài)的形式存在19.keep in 抑制，保留20.carbon dioxide 二氧化碳21.environmentally friendly 環(huán)保的22.petrol 汽油23.level 水平，水準(zhǔn)24.drown 淹死teaching procedure:pre-task preparation1. warming up and introduction of the topic:tell students something about the car

5、toon. the joke is a pun on the two meanings of the word green. hi has told lo to become green, meaning that he should care for the environment. but lo has misunderstood the advice from his friend, and has painted himself the colour green.the word green has become associated with things which are fri

6、endly to the environment. it is now regularly used about products, action groups and policies2. ask the students the following questions:a) t: what is happening to the ozone layer?s: huge holes have appeared over the north and south poles.b) t: what will the bad effects of cutting down trees be?s: t

7、here will be more carbon dioxide in the atmosphere.s: there will be fewer animals and plants.s: many areas will become deserts.s: the earth will become warmer.c) t: what should we do with our rubbish?s: sort it out and recycle glass, plastic, paper and metal.d) t: if you look after the environment,

8、what colour do we say you are?s: green.3. look and think:a) this exercise shows the students how to approach a new text, learning as much as possible about it before a detailed study.b) let the students work in pairs to complete the exercise, and then ask some pairs to report their answers to the cl

9、ass.4. read the new words. while-task procedure1 listen to the tape recording of the first passage2 listen and repeat it sentence by sentence after the recording.3 explain some new words and expressions on the reading. 1) green consumer: 綠色消費(fèi)者 consumer: (解釋)a person who buys or uses something, custo

10、mer （詞性轉(zhuǎn)換）v: consume （例句）the consumers complained about the poor quality of the electronic products.2) situation 情況，狀況 （例句）im afraid the situation is very serious. 3) in danger: 處于危險(xiǎn)中 danger: 危險(xiǎn) （詞性轉(zhuǎn)換）adj: dangerous4) vital: 致命的，重要的(解釋) essential, very important （詞性轉(zhuǎn)換）adv: vitally （例句）1. its vital t

11、hat we do something to save the earth. 2. oxygen is vital for life.5) save the earth: 拯救地球 save: 拯救，搭救 （詞性轉(zhuǎn)換）adj: safe n: safety adv: safely6) first of all: 首先 （例句）first of all, lets invite mr wilson to give us a speech.7) threat: 危險(xiǎn)，危害，威脅(解釋)danger （詞性轉(zhuǎn)換）v: threaten威脅, 恐嚇 （例句）1. the threat of war h

12、as depressed business activity. 2. he took no notice of his fathers threat. 3. what are the threats to the environment? 4. corruption and crime are serious threats to any society.8) environment: 環(huán)境(解釋)the natural world around us, surrounding (例句）if we destroy our environment, we will destroy ourselv

13、es.9) the greenhouse effect 溫室效應(yīng)10)imagine: 想象，設(shè)想(解釋)make a picture of something in your mind (詞性轉(zhuǎn)換）n: imagination （例句）1. he imagines that people dont believe him. 2. i cant imagine what he looks like.11)atmosphere: 大氣(解釋)the mixture of gases which are around the earth （例句）1.the rocket went up throu

14、gh the atmosphere and into space. 2. the atmosphere covers the whole earth.12)act: 生效，發(fā)生作用 (解釋)do sth. or behave in a certain way （詞性轉(zhuǎn)換）n:action, actor, actress adj: active （例句）does the drug take long to act?13)keepfrom: 阻止做某事 （例句）she tried to keep me from seeing the letter.14)warmth: 溫暖，暖和(解釋)heat

15、（詞性轉(zhuǎn)換）adj: warm （例句）she felt the warmth of the sun on her face.15)lifeless: 無(wú)生命的(解釋)without any form of life, dead(例句）we think that mars is a lifeless planet.16)pollute: 污染(解釋)make something dirty, unpleasant or dangerous （詞性轉(zhuǎn)換）n: pollution you can see the pollution on this beach. （例句）1. your smokin

16、g is polluting the air in this room. 2. the stadium lights polluted the sky around the observatory.17)chemical: 化學(xué)藥品 （詞性轉(zhuǎn)換）n: chemistry 化學(xué) 18)in the form of gases: 以氣態(tài)的形式存在19)keep in: 抑制，保留20)carbon dioxide: 二氧化碳21)fuel: 燃料22)petrol: 汽油23)level: 水平，水準(zhǔn) (例句）1. the garden is arranged on two levels. 2.

17、i finally found my own level in the business world.24)drown: 淹死(解釋)kill by covering with water （詞性轉(zhuǎn)換）n: drowner(例句）1. some plants will drown if you water them too much. 2. dont play by the river in case you fall in and drown.4. read the reading together.5. t or f 1) its not vital that we do somethin

18、g to save the earth. f 2) the atmosphere is essential to us. t 3) we are polluting our earth with chemicals, so our atmosphere is changing. t 4) the greenhouse effect is harmful to the earth. t6. ask and answer:1) whats around our earth? what is it like? 2) what would happen if there is no atmospher

19、e around the earth?3) why is the atmosphere changing ? 4) what should we do to deal with the problem? post-task activity1）ask students to say something about the importance of the atmosphere 基本要求 2）say in your own words what the job of the atmosphere is 提高要求3）.ask some students to describe what gree

20、nhouse effect is in their own words. and draw a diagram to help you retell the text if you can .提高要求consolidation:1. read the reading after the tape recording 基本要求.2. recite the new words and expressions 基本要求3. write an article about what causes the greenhouse effect and what happened to the earth b

21、ecause of the greenhouse effect 拓展要求sum up:本課時(shí)先掃除學(xué)生的單詞關(guān)，為學(xué)生接下來(lái)學(xué)習(xí)reading的內(nèi)容打好基礎(chǔ)。second periodteaching aims:to review the first passage of the reading1. to learn the second part of reading and let students master some words and expressions2. to tell the students about the environment, threats to the e

22、nvironment from pollution and how we can protect the environment.teaching aids:1. students book2. cassette playernew words and expressions:1. damage 損害，傷害2. the ozone layer 臭氧層3. occur 發(fā)生，出現(xiàn)，存在4. protective 保護(hù)的，防護(hù)的5. burn up 燒起來(lái)，燒掉6. cfc 氟里昂7. a spray can 噴霧器，噴霧罐8. destruction 破壞，毀壞，毀滅 9. rain fores

23、t 熱帶雨林10.take in 吸收11.erosion 腐蝕，侵蝕12.flooding 洪水泛濫13.throw away 扔掉14.massive 大規(guī)模的，大量的15.do with 對(duì)付，處理16.billion 十億teaching procedure:pre-task preparation1. have a dictation. around the earth ,there is atmosphere, which lets the sunlight in and keeps the warmth from getting out. it is essential for

24、all living things. without it, the earth would be as lifeless and cold as the surface of the moon.the greenhouse effect is happening because people are using many chemicals in the form of gases and they are polluting the atmosphere around our earth. the gases are mainly co2 carbon dioxide, which are

25、 produced by burning fuels.2. read the first part of the reading.3. ask the students the following questions about the first part of reading.a) t: is it vital that we do something to save the earth?s: yes.b) t: what is essential to all living things?s: the atmosphere.c) t: why is our atmosphere chan

26、ging?s: because we are polluting it with chemicals.d) t: how are carbon dioxide produced?s: by burning fuels such as petrol.e) t: what may the greenhouse effect cause?s: to cause the level of the sea to rise and drown cities and even whole countries.4. read the new words. while-task procedure1.liste

27、n to the tape recording of part two2.listen and repeat it sentence by sentence after the recording.3. explain some new words and expressions on the reading. 1) damage: 損害，傷害 (解釋) harm or hurt, especially to things （例句）the storm did a lot of damage to the crops.2) the ozone layer: 臭氧層 layer: 層，涂層 (解釋

28、)covering, thickness （例句）1.when it is cold, you need an extra layer of clothes. 2.this cake has a layer of chocolate in the middle.3) occur: 發(fā)生，出現(xiàn)，存在 (解釋)exist, happen （例句）1. if an earthquake occurs in california, many people may die. 2. the accident occurred at five oclock. 3. such plants dont occu

29、r here.4) protective: 保護(hù)的，防護(hù)的 (解釋) that prevents sb./sth. from being damaged or harmed （詞性轉(zhuǎn)換）v: protect n: protection （例句）she is too protective towards her son.5) burn up: 燒起來(lái)，燒掉 （例句）without the ozone layer, the sun would burn us up.6) cfc: 氟里昂7) a spray can: 噴霧器，噴霧罐8) destruction: 破壞，毀壞，毀滅 (解釋) des

30、troying or being destroyed, damage （詞性轉(zhuǎn)換）adj: destructive （例句）1. the fire caused the destruction of my books. 2. the war brought death and destruction to the death.9) rain forest: 熱帶雨林10) take in: 吸收 （例句）people take in oxygen and give out carbon dioxide.11) erosion: 腐蝕，侵蝕 (解釋) wearing away, gradual

31、destruction （例句）sand is created by the erosion of rocks.12) flooding: 洪水泛濫13) throw away: 扔掉14) massive: 大規(guī)模的，大量的 (解釋) huge, very big, with a large mass （詞性轉(zhuǎn)換）n: mass （例句）1. ive got a massive amount of work to do. 2. we must make massive efforts to improve things.15) do with: 對(duì)付，處理=deal with, handle

32、 （例句）we do not know what to do with the rubbish and it pollutes our land and sea16) billion: 十億 e.g. billions of4. read the reading together.5. t or f 1) the ozone layer forms an essential protective layer around the earth. t 2) using too many cfcs is not bad for us f 3) the burning and cutting down

33、 of trees is making the greenhouse effect better. f 4) each of us should become green consumers. t post-task activity ask some students to retell the reading with their own words.consolidation:1. read the reading after the tape recording. 基本要求2. recite the new words and expressions. 基本要求3. write som

34、ething about how people are damaging the ozone layer and what people should do拓展要求 sum up:本課時(shí)將對(duì)課文進(jìn)行整體閱讀。培養(yǎng)學(xué)生略讀（獲取大意）、掃讀（整理有關(guān)信息）、細(xì)讀（分析篇章結(jié)構(gòu)，概括中心）等的閱讀技能。課前應(yīng)該準(zhǔn)備適當(dāng)?shù)膬?nèi)容，充實(shí)課堂內(nèi)容，可以把對(duì)與錯(cuò)，選擇，回答問(wèn)題等方法充分運(yùn)用在細(xì)讀和掃讀的各個(gè)環(huán)節(jié)中。 third periodteaching aims:1. to review the reading2. to understand the sequence of events. 3. to

35、 improve the students ability of listening.teaching aids:3. students book4. cassette playerteaching procedure:pre-task preparation1. have a dictation.2. read the reading.3. ask the students the following questions about the second part of reading.a) t: is it vital that we do something to save the ea

36、rth?s: yes.b) t: what is essential to all living things?s: the atmosphere.c) t: why is our atmosphere changing?s: because we are polluting it with chemicals.d) t: how are carbon dioxide produced?s: by burning fuels such as petrol.e) t: what may the greenhouse effect cause?s: to cause the level of th

37、e sea to rise and drown cities and even whole countries.4. complete exercise bto check on comprehension. while-task procedure1. complete exercise c a) ask the students to use all the clues they can find to help them complete these exercises. they should not be allowed to use the dictionaries.b) comp

38、lete exercise c1, tell the students to decide which part of speech they are looking for the right answer. the paragraphs where the answers can be found in the article are given in brackets.c) tell the students to use the words they have found in exercise c1 to complete the sentences in exercise c2 m

39、eaningfully.d) exercise c3 combines the skills practiced in exercises c1 and c2. tell the students to follow the same procedure and to complete the exercise. the paragraphs where the words can be found in the article are given in brackets.2. complete exercise d this exercise tests comprehension by s

40、eeing if the students can recognize the information from the article when it is slightly reworded. as the choice of answers is either/or, ask students to justify their answers by referring to the passage.3. complete listening. 1) this exercise gives students practice in listening carefully and match

41、ing the information they hear with a set of pictures. in each set, they must put the three pictures in the order in which the events happened. 2) this exercise is useful practice for sharpening students attention and forcing them to listen carefully. they should listen in particular for time express

42、ions, which will help them in this exercise.consolidation:1.read the reading after the tape recording.基本要求2.review the new words and expressions.基本要求3.ask students to make a small quiz with the words and phrases in the c vocabularysum up: 本節(jié)課是對(duì)課文內(nèi)容的精讀和掃讀的延續(xù)，教師應(yīng)繼續(xù)利用各種有效的教學(xué)方法培養(yǎng)學(xué)術(shù)的閱讀能力和閱讀技巧。 fourth per

43、iodteaching aims:1. to review the reading2. to learn the sentence why and because, (not) as as3. to compare things with like, the same as, different fromteaching aids:students bookteaching procedure:pre-task preparation1. have a dictation.2. read the reading while-task procedure1. a why and because

44、1)the uses of why include:a) to ask for reasonse.g. why are you late for school today?b) why + infinitive : to suggest that an action is pointlesse.g. why waste your time on that?c) why not and why dont you: to make suggestionse.g. why not go and see him? why dont you buy a new one?d) why didnt you

45、: to suggest criticism or complainte.g. why didnt you come earlier? e) why can be used after the reason. e.g. the reason why he came was that he was lonely. 2)read the example with the class and then ask them to complete exercise a1 3)after the oral practice of exercise a1. exercise a2 can be done a

46、s a written exercise.2. b using (not) as as to compare things 1) read through the example and instructions with the class. then tell the students to prepare the answers to exercise b1, which they can give you orally a few minutes later. 2) tell the students to refer to the chart on page 7 to find th

47、e necessary information to complete the statement in exercise b2. 3. c comparing things with like, the same as, different from 1) read the examples and the introduction in the students book with the class. 2) like is a prep. and must be followed by a noun, pronoun or gerund. 3) pay attention to the

48、difference between the prep. like and the verb like. 4) go through exercise c1 with the students, stressing that the words are used to compare or contrast two things. let the students write out their answers. 5) using the same and difference: a) read the text carefully with the students and explain

49、the use of the same and different. b) students should work in pairs. they should take it in turns to ask and answer questions. the person asking the question should name something in the pictures and ask if it is the same in both. students can follow the model dialogues provided. 6) using the same a

50、s with nouns and phrases a) read the text with the class, and then let the students continue in pairs to complete exercise c3. b) exercise c4 asks the students to choose between the same, the same as and different as well as using the information from exercise c3.consolidation:1.read the reading aft

51、er the tape recording.基本要求2.review the new words and expressions. 基本要求3.finish workbook. p14基本要求4.ask some students to make a small quiz with the phrase”asas”拓展要求sum up: 本課時(shí)內(nèi)容開始可以對(duì)課文進(jìn)行一個(gè)閱讀檢測(cè)，學(xué)習(xí)課文中重點(diǎn)單詞、詞組、句型和語(yǔ)法；并將課文內(nèi)容內(nèi)的語(yǔ)言知識(shí)點(diǎn)進(jìn)行一個(gè)細(xì)化的學(xué)習(xí)和歸納整理，在這一過(guò)程中幫助學(xué)生進(jìn)行適當(dāng)?shù)卣Z(yǔ)言知識(shí)點(diǎn)的積累總結(jié)。fifth periodteaching aims:1. to expr

52、ess preferences and reasons2. to conduct a survey and report the resultsteaching aids:students bookteaching procedure:pre-task preparation1.have a dictation.2.review the use of ”asas” while-task procedurea talk time1. tell the students to express statements of general preference with i prefer, but t

53、hat this may be considered slightly rude as it is very direct.2. the use of the modal would makes the statement more polite. e.g. shall we have chicken? well, id prefer duck.3. rather can be used in a similar way to prefer to, although it never occurs without would. rather must be followed by another verb, unlike prefer. e.g. shall we have chicken? well, id rather have duck.4. read the text and the dialogue with the class and then answer the questions in exercise a1 with them.5. ask the students to complete a2 in pairs. post-task activityb speak up 1. fo