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1、第1页/共47页tornadohurricaneNatural Disastersearthquake sandstormlightningvolcanic eruption第2页/共47页第3页/共47页第4页/共47页第5页/共47页第6页/共47页第7页/共47页第8页/共47页BCDANorth AmericaCentral AfricaAustralia Central Asia第9页/共47页BCAInner Mongolia GansuXinjiang第10页/共47页major sandstorm centers in ChinaGansu and Western Inner
2、MongoliaBeijing and Northeast Inner MongoliaPart Part 第11页/共47页Introduction-1.Vocabulary and writingTherehas been a _.It has_for ten hours and was very_.The wind was_the sand high around the house.and some cars were completely_by the sandsandstormlastedfrighteningblowingburied第12页/共47页Reading&Vocabu
3、lary Look at the photo.Answer the questions.Answers:1.There is a sandstorm blowing.2.Theyve wearing hoods,masks and glasses to protect themselves.3.It moves very slowly.Because it is not clear to see everything on the road and people must take great care.4.Stay at home.第13页/共47页Language points1major
4、 adj.较大的，较多的；主要的，主修的；较较大的，较多的；主要的，主修的；较重要的重要的vi.主修，专攻主修，专攻n.主修课程；主修学生主修课程；主修学生majority n.大多数大多数major problems 主要问题the major subjects 主修课程play a major role in sth.在某事中起重要作用major in sth.主修a/the majority of.的大多数The students major in chemistry.这些学生主修化学。The majority of students was/were indifferent to th
5、e political meeting.大多数学生对政治会议漠不关心。第14页/共47页major/main/chief(1)major 意为意为“重大的；主要的重大的；主要的”，指在，指在规模、数量规模、数量、重要性方面超出同类的其他事物。(2)main 意为“主要的”，强调事物的某一部分、分支的重要性、大小及潜力优于其他部分、分支，或表示整体中最主要、最明显的部分，通常只作定语。(3)chief 意为“主要的；首要的”，强调在顺序、等级、重要性、价值方面高于其他所有同类事物。第15页/共47页 2.They are often so thick that you cannot see th
6、e sun，and the wind is sometimes strong enough to move sand dunes.沙尘暴经常是非常混浊的以至于你看不见太阳，而且风有时大得能够刮动沙丘。so.that通常引导结果状语从句，意为“如此以至于”。常用句型如下：第16页/共47页3be caught in被困于，遭遇I am often caught in a heavy traffic on my way to school.我在上学路上常常遇到塞车。Medical teams were caught in the crossfire of the opposing armies.医
7、疗队陷入了敌军的交叉火力中。【知识拓展】be caught in the heavy rain/snowstorm/sandstorm/traffic突然遭到大雨/暴风雪/沙尘暴/交通拥挤 被困住be caught doing被撞见做某事catch up(常与with连用)赶上Be trapped inBe stuck in第17页/共47页catch up with赶上catch on理解，流行，受欢迎(=be popular with)catch sight of看见catch ones attention吸引某人的注意catch hold of抓住catch fire着火第18页/共47
8、页 4.cut down砍倒，使倒下；削减，压缩；减价砍倒，使倒下；削减，压缩；减价 Many big trees along the road have been cut down for building houses.路边的许多大树都被砍掉用来建房了。路边的许多大树都被砍掉用来建房了。拓展：拓展：cut across 走捷径，穿过去cut in 插话；让某人分享利润cut off 中止，切断；隔绝cut out 删除；裁剪cut up 劈碎，切碎；使难过；(严重地)割伤cut short 突然停止，中断(活动)cut through 穿过；克服；避开；剪断cut sth.in half/
9、in two将对半切开第19页/共47页5strength nU力量；力气；体力；实力He has been doing weighttraining to build up his strength.他一直进行举重训练以增强体力。Much of the countrys military strength lies in its missile force.这个国家的军事实力主要体现在导弹部队上。The boy lifted the stone with all his strength.男孩用尽全力举起了石头。with all ones strength尽力 on the strength
10、 of sth.凭借(或根据)某事物 strengthen v加强第20页/共47页【轻巧辨析】force/strength/energy/power(1)force主要指自然界的力量、暴力、势力以及法律、道德或主要指自然界的力量、暴力、势力以及法律、道德或 感情的力量、效力、强制力、军事力量、武力等。感情的力量、效力、强制力、军事力量、武力等。(2)strength说人时，指说人时，指“力气力气”；说物时，指；说物时，指“强度强度”。(3)energy主要指人生理上的精力或自然界中的能量、能源。主要指人生理上的精力或自然界中的能量、能源。(4)power主要指做一件事所依靠的能力、功能；也可
11、指人或主要指做一件事所依靠的能力、功能；也可指人或机器等事物潜在或所能发挥出来的力量，还可指职权、权力、机器等事物潜在或所能发挥出来的力量，还可指职权、权力、政权，也可指电力、动力、功率。政权，也可指电力、动力、功率。第21页/共47页6prevent.(from)阻止；制止阻止；制止stop sb.(from)doing sth.阻止某人做某事keep sb.from doing sth.阻止某人做某事protect sb.from.保护某人不受侵袭，挡住，防御keep sb.doing sth.让某人一直做某事提示：提示：(1)在被动句中 from 均不能省略。如：We were stop
12、ped/prevented/kept from going out by the heavy rain.大雨使我们无法外出。(2)protect.from.中 from后接能带来伤害或损害之物。如：They huddled together to protect themselves from the wind.他们挤在一起，免受风吹。第22页/共47页7have an effect on对有影响Smoking has a bad effect on health.吸烟对身体有不良影响。The radiation leak has had a disastrous effect on/upon
13、 the environment.核辐射泄漏给环境带来了灾难性的影响。与effect构成的短语be of no effect无效be in effect有效come/go into effect生效put/carry/bring sth.into effect使生效、实现take effect生效；开始发挥作用in effect实际上；简直是；事实上第23页/共47页8concerned adj.关心的，有关的常用于名词之后；挂念的，担心的Eg:It is reported that the pop singer is concerned with selling drugs.据报道，那个流行
14、歌手涉嫌贩毒。Im a bit concerned about/for your health.我有点担心你的健康。concern vt.涉及，关系到；n.(利害)关系，关心concernful adj.重要的concernedly adv.担着心concerning prep.关于be concerned about/over/for关心，挂念be concerned with/in牵涉到，与有关as(so)far as.is concerned就来说；就而言show/express concern about对表示关心/担心as concerns=concerning关于第24页/共47页
15、9urgent adj.紧急的；迫切的；非常重要的The law is in urgent need of reform.这项法律亟待修订。The most urgent thing in a fire is to make sure everyone is out of the building.失火时最紧要的事是确保所有人都撤离大楼。【知识链接】(1)in urgent need of急需 an urgent look急切的神情(2)urgency n紧急；迫切(3)urge vt.推进；极力主张；催促；激励urge sb.to do.敦促某人做urge sb.into doing.敦促某
16、人做urge sb.against强烈反对urge sb.on鼓励，激励，为加油urge+that从句强烈要求，极力主张(从句用虚拟语气)第25页/共47页Finish the exercise at Activity 2,Page 33.Answers:1._2._3._4._5._6._7._8._cycle(v)expert processcitizen dust survive forecast situation 第26页/共47页Finish the exercise at Activity 3,Page 33.Answers:1._2._3._4._BBAA第27页/共47页Fi
17、nish the the exercise at Activity 4,Page33.Answers:1.prevent you(from)seeing the sun/strong enough to move sand dunes.2.he experienced a terrible sandstorm.3.because of desertification.4.cause deserts and sand-storms to increase.5.the thick dust makes it difficult to see/the drivers cannot see clear
18、ly.6.prevent the desert coming nearer.第28页/共47页Complete these sentences:Activity 5 page331.Weather experts have f_ another big sandstorm in a weeks time.2.Its f_ to be outside in a sandstorm.3.I was in a very big sandstorm some years ago.Luckily,everyone s_.4.Theres a lot of d_ on the floor.We need
19、to sweep it away.5.Desertification is a long p_ that takes many years.6.Many Beijing c_ cycle to work.orcast(ed)righteningurvivedustrocessitizens第29页/共47页Grammar 1-1.Observation 1.Im glad to meet you.2.She invited me to attend the meeting.3.The boy is old enough to go to school.to+动词原形表示主动第30页/共47页
20、Grammar 1-2.Observation 1.There was nothing to be done.2.Id like to be told whats going on.3.Nothing is allowed to be taken out of the reading room.to be+动词的过去分词表示被动。不定式一般式所表示的动作通常与谓语 所表示的动作或状态同时发生，或在它 之后发生。第31页/共47页Grammar 1-3.Observation 1.To be cycling in a sandstorm is frightening.2.They pretend
21、ed to be working hard when their boss passed them.to be+动词ing；不定式进行式表示动作正在进行，与谓语动词 表示的动作同时发生。第32页/共47页Grammar 1-4.Observation 1.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+动词的过去分词第33页/共47页Grammar 1-5.Observation1.To have been caught in
22、 a sandstorm is a terrible experience.2.The room was said to have been cleaned.to+have been+过去分词；不定式完成式所表示的动作在谓语动词所 表示的动作之前发生。第34页/共47页Grammar 1-6.Exercise finish the exercise at Activity 2,Page 34.Answers:1.It is dangerous to travel during a sandstorm.2.Experts hope to learn more about the movement
23、 of thunderstorms.3.We were told not to leave the house.4.The work on the house needs to be completed(the work)by the end of the week.5.Most houses seem to have been destroyed by the storm.第35页/共47页Grammar 1-7.Exercise Finish the exercise at Activity 3,P34.Answers:1.It is frightening to walk in the
24、road in a sandstorm.I hope I reach home soon.2.Experts hope to learn more about the movement of sandstorms.3.Id like to be told about the situation before now.4.The work needs to be completed by the end of the week.5.My father was out of the city when the sandstorm came.He was very glad to have miss
25、ed it.6.The building has to be finished by the end of the year.7.To see a real sandstorm was very frightening.第36页/共47页Listening&Vocabulary Finish the exercise at Activity 1,Page 35.Answers:1._2._3._4._5._6._7._8._9._10._ atmosphere damage chemical environment melt recycle carbon dioxide the Poles g
26、arbage pollution第37页/共47页Listening&Vocabulary3.NumberingAnswers:1.E2.D3.C4.B5.A第38页/共47页Listening&Vocabulary-Answering Listen to the tape,then finish the exercise at Activity 3,Page 35.Answers:1.The climate2.New York and Shanghai.3.Because pollution is stopping the suns heat leaving the atmosphere.4
27、.Carbon dioxide from cars.5.There is less oxygen and more carbon dioxide in the atmosphere.6.Optimistic.第39页/共47页 Grammar 2。Finish the following exercises1.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.h
28、elp 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.Catching,to askD.Caught,askcannot cannot but+Vbut+V.（动词原形）（动词原形）;do;do but+Vbut+V.（动（动词原形）词原形）cannot help/choose cannot help/choose but+Vbut+V.（动词原形）动词原形）第40页/共4
29、7页Grammar 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 washing instead of my mother.A.but didB
30、.but do C.but doingD.but to dotalkwaitto waitto succeed如果主动词是do的任一形式的话，but 后面就省略to（有DO就没TO）第41页/共47页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.第42页/共47页Function Exercise Fill
31、the blank with the phrases we learnt just now.1.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 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.第43页/共47页Everyday English1.B2.A3.B4.A5.AAnswers:第44页/共47页第45页/共47页第46页/共47页感谢您的观看。第47页/共47页