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1、MODULE 4 SANDSTORMS IN ASIALEARNING GOALS:1. Learn some words and their usages in this module.2. Learn to write a short passage about environment.一.【學(xué)情調(diào)查，情境導(dǎo)入】1、n.主修科目主修科目 v.主修主修 a.主修的主修的,主要的主要的2、因此，結(jié)果、因此，結(jié)果3、保護(hù)、保護(hù)v. n. 4、持續(xù)了、持續(xù)了10小時(shí)小時(shí)5、突然遭遇、突然遭遇(惡劣天氣等惡劣天氣等)6、砍伐（樹木）、砍伐（樹木） 7、如此、如此以至于以至于 8、阻止某人做某事、阻止

2、某人做某事 Disasters of Nature：沙塵暴，沙塵暴，龍卷風(fēng)，龍卷風(fēng)，颶風(fēng)颶風(fēng), 臺(tái)風(fēng)，臺(tái)風(fēng)，地震，地震，海嘯，海嘯，洪水，洪水，閃電閃電, 雷暴，雷暴，火山噴發(fā)火山噴發(fā)sandstorm, tornado, hurricane,typhoon, earthquake, tidal wave / tsunami flood,lightning, thunderstorm,volcanic eruption沙塵暴形成有三個(gè)要素：即強(qiáng)風(fēng)、沙源和不穩(wěn)定的沙塵暴形成有三個(gè)要素：即強(qiáng)風(fēng)、沙源和不穩(wěn)定的空氣空氣 。除上述三大因素之外，人類生產(chǎn)活動(dòng)等因素。除上述三大因素之外，人類生產(chǎn)活動(dòng)等因素

3、對沙塵暴的形成也很重要。如人為破壞植被、工礦對沙塵暴的形成也很重要。如人為破壞植被、工礦交通建設(shè)、大規(guī)模施工等對地表的破壞，為沙塵暴交通建設(shè)、大規(guī)模施工等對地表的破壞，為沙塵暴發(fā)生發(fā)展提供了細(xì)沙和塵土。發(fā)生發(fā)展提供了細(xì)沙和塵土。 Central AsiaNorth AmericaCentral Africa二.【問題展示，合作探究】 Sandstorms have been a _ disaster for many Asian countries. They are _ frightening _ a person who has _ one thinks that to have _ _

4、_ it is a terrible experience. Now people _ _ more trees and dig up more grass. _, sandstorms appear to have increased in recent years. To _ the situation becoming worse, the government is planting more trees.soprevent, major, be caught in, surviveso-that-, cut down, as a result, + n. 2. major1) adj

5、.2) n. 3) vi. major inEnglish is my major subject.His major is likely to be IT in the future.He is likely to major in IT in the future.3. be caught in突然遭遇突然遭遇(惡劣天氣等惡劣天氣等) 我被大雨淋了。我被大雨淋了。_I was caught in the heavy rain. be caught in in 遇到，陷入遇到，陷入Tom _and was late for work.湯姆遇上堵車，上班遲到了。湯姆遇上堵車，上班遲到了。was

6、 caught in the traffic jam4. cut down:1) 砍倒砍倒 Many big trees along the roadshave been cut down for building houses._2) 降低，削減降低，削減 This factorys production has been cut down._3) 改小或縮短改小或縮短 The tailor _ my dress.裁縫正在把我的衣服改小。裁縫正在把我的衣服改小。 路邊的許多大樹都被砍倒建房了。路邊的許多大樹都被砍倒建房了。這家工廠的產(chǎn)量減少了。這家工廠的產(chǎn)量減少了。is cutting do

7、wnGroup A: A Reporter from CCTV-channel 9Group B: A person who is cycling in a sandstorm. Task: The reporter is interviewing the person about how he/she feels when cycling in a sandstorm.CYCLING IN A SANDSTORMblowburyfrightening,dangerouswear a maskthick, brown-yellow dustdifficult to breatheterribl

8、e experiencesandstormlastGroup A: A worker who is cutting down trees without a permit. Group B: A reporter from CCTV-channel 9Task: The reporter is interviewing the workerand tries to make him realize the bad effects on the environment of cutting down trees. THE BAD EFFECTS ON THE ENVIRONMENT OF CUT

9、TING DOWN TREESCause sandstormWash the earth awayGlobal warming .Group A: A reporter from CCTV-channel 9Group B: A volunteer (志愿者志愿者) who protects the environment.Task: The reporter is interviewing the volunteer on his/her opinion on the environmental protection. 保護(hù)環(huán)境保護(hù)環(huán)境 從我做起從我做起HOW TO PROTECT THE

10、ENVIRONMENT Lets go cycling! What Should We Do to HelpProtect the EnvironmentI will cycle to work instead of driving my car. ?Part 1: HeadingPart 2: A picturePart 3: More informationStructure of a poster:Task:Design a posterthat encouragespeople to protectthe environmentA posterHelp the planetStop c

11、utting down trees!Homework1.Finish your poster. 2.Evaluate your group members performanceon oral English.Thank You_, people cut down trees and dig up grass to build houses and grow more crops._, desertification becomes so serious that it causes many sandstorms every year. _ sandstorms have become a

12、major problem that many countries are facing, having a great effect on peoples lives. Sometimes its difficult for people to survivea sandstorm. To prevent sandstorms, _, we should plant more trees and keep the balance of nature.1).The _ aim of the air raid was the complete destruction of the city. A

13、. most B. mostly C. major D. majority2). It was unbelievable for _ little children to cover _ many miles in _ tough weather.A. such; so; such B. so; so; suchC. such; such; so C. so; such; soCA3). In such dry weather the flowers will have to be watered if they _.A. have survived B. are to survive C.

14、would survive D. will survive4).The government must take measures to prevent rivers _ . A. polluted B. pollutingC. from polluting D. being pollutedBD5). With the electricity _ , all the machines stopped. A. cut off B. cut down C. was cut off D. was cut down6). If traffic moves at low speed, the numb

15、er of accidents is _. A. pulled back B. cut down C. cut off D. turned off1.為了種地建房，人們毀壞森林破壞草皮。為了種地建房，人們毀壞森林破壞草皮。 (cut down)2. 土地沙漠化變得如此的嚴(yán)重，每年都有許土地沙漠化變得如此的嚴(yán)重，每年都有許多可怕的沙塵暴發(fā)生。多可怕的沙塵暴發(fā)生。(sothat-)3. 沙塵暴成為許多國家正面臨的一個(gè)主要問沙塵暴成為許多國家正面臨的一個(gè)主要問 題，嚴(yán)重地影響了人們的生活。題，嚴(yán)重地影響了人們的生活。(major)4.有時(shí)人們很難幸存于一場沙塵暴中。有時(shí)人們很難幸存于一場沙塵暴中。(

16、survive)5.為了防止沙塵暴，我們應(yīng)該多種樹，保為了防止沙塵暴，我們應(yīng)該多種樹，保 持生態(tài)平衡。持生態(tài)平衡。(prevent)1. He _ (經(jīng)歷) great difficulty in getting a visa to leave the country.2. She prepared for all _(可能性) by taking a sunhat, a raincoat and a woolly scarf.3._（幸運(yùn)的是） I was able to keep the car in control until I could pull over and stop.4.

17、No one has given out a _ (警告) of the imminent danger.5. The flood did a lot of _（損害）to the crops.6. That plane crash_（發(fā)生）only minutes after take-off.experiencedpossibilitiesFortunately warningdamageoccurred7. Tornadoes are _（強(qiáng)烈的）whirlwinds which vary in their width from a few yards to 1300 feet.8. A

18、pplicants for the job must have_（先前的）experience. 9. Police are investigating the_（原因）of the explosion.10. Our hotel has a_（世界范圍的）reputation for good service.violentpreviouscausesworldwide【預(yù)習(xí)指導(dǎo)，新課鏈接預(yù)習(xí)指導(dǎo)，新課鏈接】預(yù)習(xí)課題：SANDSTORMS IN ASIA 預(yù)習(xí)目標(biāo)：1.閱讀課文，并理解其大意 2. 找出課文中重點(diǎn)句型，并背誦1. Sandstorms have been a major di

19、saster for many Asian countries for centuries.2. To haven been caught in a sandstorm was a terrible experience.3. It was the most frightening and the most dangerous situation Ive ever been in.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.5. When a sandstorm arrives in the city, weather experts advise people not to go out.6. Already the government has planted more than 30 billion trees and plans to continue planting for the next five years. God helps those who help themselves.