Module4_Sandstorms_in_Asia分析

1、Book 3 Module 4 Please look at these pictures.How beautiful they are !But one day something happened .What is this natural disaster ? blow bury frightening last (v) sandstormThere has been a _. It _ _for ten hours and was very_. The wind _ the sand high around the houses, and some cars were almost c

2、ompletely _ by the sand. sandstorm lasted frighteningbelw/was blowingburiedhas blow bury frightening last (v) sandstormdig earthquake protect sign the Pacific Ocean1 Sandstorms begin in desert areas.2 Deserts are created by climate changes.3 Deserts are also created because people cut down trees and

3、 dig up grass.4 Sandstorms from Asia have blown across the Pacific Ocean to America.5 Sandstorms cant be prevented.6 The inland region has more sandstorms than the one near the sea.Skimming (略讀) 方法指導(dǎo)方法指導(dǎo)1. 1. 瀏覽標(biāo)題瀏覽標(biāo)題 2. 2. 讀首段，抓中心。讀首段，抓中心。3. 3. 瀏覽其他段首末句。瀏覽其他段首末句。4.4.最后讀結(jié)尾段。最后讀結(jié)尾段。Fast-readingRead f

4、ast and try to find the main idea of each paragraphFast Readingthis article can be divided into three parts, give the main idea of each part?Part IPart IIPart (para 1) (para2-5) (para6)Sandstorm is a_ in Asiathe_ description causeseffectssuggestionof sandstormmajor disasterMeasures to prevent sandst

5、orm:_planting treesDesertification ：_ changes ；_ trees；_ grassan _sky, strong_, city in a thick, brown-yellow _move slowly, difficult to see and breatheadvisenot to go out , wear a mask orangewindsclimate cut downdig updustDetailed readingmajor disasterplant more treessandwinds Sandstorms have been

6、a major disaster for many Asian countries for centuries.Scientists have tried many ways to solve this problem and in China ,a mass campaign has been started to help solve it. Sandstorms are strong , dry winds that carry sand. They are often so thick that you cannot see the sun,and the wind is someti

7、mes strong enough to move sand dunes.The four main places in the world where there are sandstorms are Central Asia,North American,Central Africa and Australia.Ren jianbo,from Inner Mongolia described a terrible sandstorm he experienced as a child in the desert.“To be caught in a sandstorm was a terr

8、ible experience” he said.“There was nothing to be done.It was the most frightening and the most dangerous situation.Ive ever been in.You just had to hope youd survive.I thought I was going to disapear under the sand.”Northwest China is part of the sandstorm centre in Central Asia.Sandstorm begins in

9、 desert areas,Sandstorms in China appear to have increased in recent years as a result of “Desertification ”This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass. Sandstorm sometimes affect Beijing.citizens wake up to an

10、 orange sky and strong winds that cover the city in a thick,brown-yellow dust.The storm sometimes continue all day and traffic moves very slowly because the thick dust make it difficult to see.Para1. Para2. 1Para3. 1Para4. Para5. PhrasesPara1. try many ways to solve this problems for centuries a mas

11、s campaignPara2. as a child be caught in Para3. appear to have done as a result of cut down trees dig up grassPara4. wake up to an orange sky make it difficult to seePara5. arrive in /at surprise people advise sb. not to do sth wear a maskPara6.prevent(from) doing, stop(from) doing, keepfrom doingLa

12、nguage points1major adj. 較大的，較多的；主要的，主修的；較重要的較大的，較多的；主要的，主修的；較重要的vi. 主修，專攻主修，專攻n. 主修課程；主修學(xué)生主修課程；主修學(xué)生majority n. 大多數(shù)大多數(shù)例：例：major problems 主要問(wèn)題主要問(wèn)題 the major subjects 主修課程主修課程 play a major role in sth. 在某事中起重要作用在某事中起重要作用 major in sth. 主修主修 a/the majority of. 的大多數(shù)的大多數(shù)The students major in chemistry.這些學(xué)

13、生主修化學(xué)。這些學(xué)生主修化學(xué)。 The majority of students was/were indifferent to the political meeting.大多數(shù)學(xué)生對(duì)政治會(huì)議漠不關(guān)心。大多數(shù)學(xué)生對(duì)政治會(huì)議漠不關(guān)心。1.They are often so thick that you cannot see the sun, and the wind is sometimes strong enough to move sand dunes. para2 沙塵暴能見度經(jīng)常很低以至于看不見太陽(yáng)，風(fēng)有沙塵暴能見度經(jīng)常很低以至于看不見太陽(yáng)，風(fēng)有時(shí)大的能夠移動(dòng)沙丘時(shí)大的能夠移動(dòng)沙丘.

14、so- that- 引導(dǎo)結(jié)果狀語(yǔ)從句引導(dǎo)結(jié)果狀語(yǔ)從句2.Ren Jianbo, described a terrible sandstorm (that) he experienced as a child in the desert. “To have been caught in a sandstorm was a terrible experience.” para2 任建波描述了他小時(shí)候在沙漠中經(jīng)歷的一次沙塵任建波描述了他小時(shí)候在沙漠中經(jīng)歷的一次沙塵暴，暴，“那次被圍困在沙塵暴中的經(jīng)歷真是太可怕那次被圍困在沙塵暴中的經(jīng)歷真是太可怕了了.” 2. They are often so th

15、ick that you cannot see the sun,and the wind is sometimes strong enough to move sand dunes.沙塵暴經(jīng)常是非常混濁的以至沙塵暴經(jīng)常是非?；鞚岬囊灾劣谀憧床灰娞?yáng)，而且風(fēng)有時(shí)大得能夠刮動(dòng)沙丘。于你看不見太陽(yáng)，而且風(fēng)有時(shí)大得能夠刮動(dòng)沙丘。so.that:引導(dǎo)結(jié)果狀語(yǔ)從句，引導(dǎo)結(jié)果狀語(yǔ)從句，“如此如此以至以至于于”。常用句型如下：常用句型如下：3be caught in被困于，遭遇catchI am often caught in a heavy traffic on my way to school.我在上學(xué)路

16、上常常遇到塞車。【知識(shí)拓展】be caught in the heavy rain/snowstorm/sandstorm/traffic突然遭到大雨/暴風(fēng)雪/沙塵暴/交通擁擠 be caught doing被撞見做某事 catch ones attention吸引某人的注意 catch fire著火 catch up with趕上4.cut down砍倒，使倒下；削減，壓縮；砍倒，使倒下；削減，壓縮；減價(jià)減價(jià) Many big trees along the road have been cut down for building houses.路邊的許多大樹都被砍掉用來(lái)建房了。拓展：拓展：

17、cut in 插話；插話；cut off 中止，切斷；隔絕中止，切斷；隔絕5strength nU力量；力氣；體力；實(shí)力He has been doing weighttraining to build up his strength.他一直進(jìn)行舉重訓(xùn)練以增強(qiáng)體力。Much of the countrys military strength lies in its missile force.這個(gè)國(guó)家的軍事實(shí)力主要體現(xiàn)在導(dǎo)彈部隊(duì)上。The boy lifted the stone with all his strength.v with all ones strength盡力盡力v stren

18、gthen v加強(qiáng)加強(qiáng)6prevent.(from) 阻止；制止阻止；制止stop sb. (from) doing sth. 阻止某人做某事阻止某人做某事keep sb. from doing sth. 阻止某人做某事阻止某人做某事protect sb. from.保護(hù)某人不受保護(hù)某人不受侵襲侵襲，擋住擋住，防御防御提示：提示：(1)在被動(dòng)句中在被動(dòng)句中 from 均不能省略。如：均不能省略。如：We were stopped/prevented/kept from going out by the heavy rain. 大雨使我們無(wú)法外出。大雨使我們無(wú)法外出。(2)protect.fro

19、m.中中 from后接能帶來(lái)傷害或損害之物。如：后接能帶來(lái)傷害或損害之物。如：They huddled together to protect themselves from the wind. 他們他們擠在一起，免受風(fēng)吹。擠在一起，免受風(fēng)吹。7have an effect on對(duì)有影響Smoking has a bad effect on health.吸煙對(duì)身體有不良影響。The radiation leak has had a disastrous effect on/upon the environment.核輻射泄漏給環(huán)境帶來(lái)了災(zāi)難性的影響。8concerned adj.關(guān)心的，有關(guān)

20、的常用于名詞之后；掛念的，擔(dān)心的Eg:It is reported that the pop singer is concerned with selling drugs.據(jù)報(bào)道，那個(gè)流行歌手涉嫌販毒。Im a bit concerned about/for your health.我有點(diǎn)擔(dān)心你的健康。concern vt.涉及，關(guān)系到；n.(利害)關(guān)系，關(guān)心concerning prep.關(guān)于be concerned about/over/for關(guān)心，掛念be concerned with/in牽涉到，與有關(guān)as(so)far as.is concerned就來(lái)說(shuō)；就而言 The four

21、main places in the world( where there are sandstorms) are Central Asia, North America, 括號(hào)中的句子是什么從句？括號(hào)中的句子是什么從句？( ) A. 地點(diǎn)狀語(yǔ)從句地點(diǎn)狀語(yǔ)從句 B.定語(yǔ)從句定語(yǔ)從句 C. 賓語(yǔ)從句賓語(yǔ)從句 D.主語(yǔ)從句主語(yǔ)從句BPara.1and 2Central Africa and AustraliaSentences3.It was the most frightening and the most (para2)dangerous situation (that) I have eve

22、r been in. 這是我經(jīng)歷過(guò)的最可怕最危險(xiǎn)的情形這是我經(jīng)歷過(guò)的最可怕最危險(xiǎn)的情形.4.This is a process that happens （when land becomes desert because of climate changes and because people cut down trees and dig up grass.） para3 這一進(jìn)程是在氣候變化以及人們肆意砍伐森林和這一進(jìn)程是在氣候變化以及人們肆意砍伐森林和破會(huì)草皮從而導(dǎo)致土地沙漠化的情況下發(fā)生的破會(huì)草皮從而導(dǎo)致土地沙漠化的情況下發(fā)生的. “traffic moves very slowly

23、because the thick dust makes it difficult to see.”Para.4“traffic” means_ A. 交通交通 B. 車輛車輛B5The Chinese Central Weather Station can forecast a sandstorm some weeks before it arrives in Beijing, but the strength of the storm sometimes surprises people. (Para5)中國(guó)中央氣象中心能在沙塵暴到達(dá)北中國(guó)中央氣象中心能在沙塵暴到達(dá)北京前幾周預(yù)報(bào)沙塵暴，但

24、沙塵暴威力京前幾周預(yù)報(bào)沙塵暴，但沙塵暴威力有時(shí)大得驚人。有時(shí)大得驚人。 “Already the government has planted more than 30 billion and plans to continue planting for the next five yeas.” “Plans” 的詞性是的詞性是_ A. verb B. nounAand and 連接并列謂語(yǔ)連接并列謂語(yǔ) “has planted ” has planted ” 和和“plans”plans”plan to doplan to do為為 固定搭配固定搭配Para.6講解：appear to do

25、/ to be doing/ to have done=It appears that -He appears to be talking to himself.=It appears that he is talking to himself.Sandstorms in China appear to have increased in recent years.=It appears that sandstorms in China have increased in recent years.It appeared that he was unhappy.=He appeared to

26、be unhappy.appear不用不用進(jìn)行時(shí)態(tài)進(jìn)行時(shí)態(tài)動(dòng)詞不定式動(dòng)詞不定式To do that sort of thing is foolish。I want to see you this evening.All you have to do is to finish it quickly.We found a house to live in.She came here to study English. I warned the patient not to eat cold water after the operation. 主語(yǔ)主語(yǔ) 賓語(yǔ)賓語(yǔ)表語(yǔ)表語(yǔ) 定語(yǔ)定語(yǔ) 狀語(yǔ)狀語(yǔ) 賓補(bǔ)賓

27、補(bǔ)動(dòng)詞不定式的時(shí)態(tài)動(dòng)詞不定式的時(shí)態(tài)1. He seems to know this.2. I hope to see you next week. 一般式一般式( to do ).不定式的一般式所不定式的一般式所表示的動(dòng)作（狀態(tài)）表示的動(dòng)作（狀態(tài)）與句子謂語(yǔ)的動(dòng)作與句子謂語(yǔ)的動(dòng)作同時(shí)（或幾乎同時(shí)）同時(shí)（或幾乎同時(shí)）發(fā)生，或之后發(fā)生。發(fā)生，或之后發(fā)生。Im glad to meet you.She invited me to attend the meeting.The boy is old enough to go to school. to + 動(dòng)詞原形表示主動(dòng) Grammar 1 Ther

28、e was nothing to be done.Id like to be told whats going on.Nothing is allowed to be taken out of the reading room. to be +動(dòng)詞的過(guò)去分詞表被動(dòng)。 不定式一般式所表示的動(dòng)作通常與謂語(yǔ) 所表示的動(dòng)作或狀態(tài)同時(shí)發(fā)生，或在它 之后發(fā)生。.進(jìn)行式進(jìn)行式( to be doing)1.He pretended to be working when I came in.2. He seems to be thinking deeply,without noticing me passin

29、g him.表示謂語(yǔ)表示的動(dòng)作表示謂語(yǔ)表示的動(dòng)作（情況）發(fā)生時(shí)，不（情況）發(fā)生時(shí)，不定式所表示的動(dòng)作正定式所表示的動(dòng)作正在進(jìn)行。在進(jìn)行。動(dòng)詞不定式的時(shí)態(tài)動(dòng)詞不定式的時(shí)態(tài)To be cycling in a sandstorm is frightening.They pretended to be working hard when their boss passed them. to be + 動(dòng)詞ing； 不定式進(jìn)行式表示動(dòng)作正在進(jìn)行，與謂語(yǔ)動(dòng)詞 表示的動(dòng)作同時(shí)發(fā)生。動(dòng)詞不定式的時(shí)態(tài)動(dòng)詞不定式的時(shí)態(tài).完成式（完成式（to have done)1. I am sorry to have kep

30、t you waiting so long.2. You seemed to have read the novel written by Mr. Smith.不定式的動(dòng)作不定式的動(dòng)作發(fā)生在謂語(yǔ)表發(fā)生在謂語(yǔ)表示的動(dòng)作之前。示的動(dòng)作之前。Im the only person in my family to have been in a sandstorm. 2. He is not likely to have got my letter. to have + 動(dòng)詞的過(guò)去分詞Grammar 1 -5. ObservationTo have been caught in a sandstorm i

31、s a terrible experience.2. The room was said to have been cleaned. to + have been + 過(guò)去分詞； 不定式完成式所表示的動(dòng)作在謂語(yǔ)動(dòng)詞所 表示的動(dòng)作之前發(fā)生。Grammar 1 -6.Exercise finish the exercise at Activity 2, Page 34.Answers:It is dangerous to travel during a sandstorm.Experts hope to learn more about the movement of thunderstorms.

32、We were told not to leave the house.The work on the house needs to be completed (the work) by the end of the week.Most houses seem to have been destroyed by the storm.Grammar 1 -Exercise Finish the exercise at Activity 3, P34.Answers:It is frightening to walk in the road in a sandstorm. I hope I rea

33、ch home soon.Experts hope to learn more about the movement of sandstorms.Id like to be told about the situation before now.The work needs to be completed by the end of the week.My father was out of the city when the sandstorm came. He was very glad to have missed it.The building has to be finished b

34、y the end of the year.To see a real sandstorm was very frightening.Listening & Vocabulary Finish the exercise at Activity 1, Page 35.Answers: _ _ _ _ _ _ _ _ _ _ atmosphere damage chemical environment melt recycle carbon dioxide the Poles garbage pollution Grammar 2。Finish the following exercises1.

35、I was watching an interesting TV program about how to make dinners last night when electricity was out, and I couldnt _ to the bed. A. but goingB. help but to go C. help goingD. choose but go2. _ in a heavy rain, Robert fell ill and couldnt but _ for a leave. A. Caught, to askB. Catching, ask C. Cat

36、ching, to askD. Caught, askGrammar 2。Finish the following exercises1. He does nothing but _(talk).2. The man could do nothing but _ (wait).3. We have no choice but _ (wait).4. They want nothing but _ (succeed). How did you spend your weekend, Joe? I didnt find anything interesting for me _ some wash

37、ing instead of my mother. A. but didB. but do C. but doingD. but to dotalkwaitto waitto succeed如果主動(dòng)詞是do的任一形式的話，but 后面就省略to（有DO就沒TO）FunctionagreementsdisagreementsI couldnt agree with you more.I think youre absolutely right.I disagree with you all.I am afraid I cannot agree with you.I dont think so.F

38、unction Exercise Fill the blank with the phrases we learnt just now. A: We need to plant more trees. B: _ _2. _ The traffic in this city just doesnt move.3. A: People dont care enough about the environment. B: _ _4. _I cant see anything. Theres sand everywhere.I couldnt agree with you more./ I think

39、 youre absolutely right.It couldnt be worse. / Its absolutely hopeless.I couldnt agree with you more. / I think youre absolutely right.It couldnt be worse. / Its absolutely hopeless.In order to protect our earth, many Green Movements have been held all over the world, what should we do? Never do evi

40、l deed no matter how trifling 勿以善小而不為勿以善小而不為,勿以惡小而為之勿以惡小而為之 Talk about sandstorms in pairs. You can ask and answer the following questions, and you may add some other details:What is a sandstorm?Where does it occur in the world/ in China?What is the causes of sandstorms?What should we do if sandstor

41、ms occur?How can we prevent sandstorms?Pair workDialogueCause :cutting down too many trees; desertification (沙漠化); high temperature and little rain; serious air and water pollution; the growing population of the world; improper use of land; 1.We should plant more trees and grow more grass.2.Control

42、air and water pollution.3.Build green fences along the desert. 4.Forecast sandstorms real time to prevent disaster.5.All countries should join hands to propose a plan in sandstorms control and prevention.Measures:Writing世界環(huán)保日前夕，聯(lián)合國(guó)教科文組織就如何處理城市垃世界環(huán)保日前夕，聯(lián)合國(guó)教科文組織就如何處理城市垃圾箱全世界中學(xué)生征文，請(qǐng)你以圾箱全世界中學(xué)生征文，請(qǐng)你以Saving Our City 為題，為題， 寫一篇寫一篇100詞左右的短文。詞左右的短文。提示：提示：1. 城市污