1、Unit4 Natural disastersReading & Thinking【學(xué)習(xí)目標(biāo)】認(rèn)識(shí)常見的幾種自然災(zāi)害，如地震、森林火災(zāi)等；了解描述自然災(zāi)害的文章的語言特征，學(xué)會(huì)從中找出關(guān)鍵內(nèi)容，并學(xué)會(huì)歸納段落大意；【學(xué)習(xí)重難點(diǎn)】獲取描述自然災(zāi)害相關(guān)詞匯和句型（重點(diǎn)）；學(xué)會(huì)掌握自然災(zāi)害話題相關(guān)詞語，并能夠正確利用(難點(diǎn))；了解定語從句的作用和形式，為運(yùn)用到自己的寫作中做好準(zhǔn)備（難點(diǎn)）?！疚幕暣啊?0世紀(jì)中國3次大地震1.1976年7月28日，中國唐山發(fā)生里氏7.8級(jí)大地震，造成242 769人死亡。2.1927年5月23日，中國甘肅古浪發(fā)生8.0級(jí)地震，死亡4萬余人。3.1920年12月16日

2、，中國寧夏回族自治區(qū)南部海原縣一帶發(fā)生8.5級(jí)地震，死亡28.8萬人。唐山地震災(zāi)情唐山被夷成廢墟，682 267間民用建筑中有656 136間倒塌或受到嚴(yán)重破壞，242 769人死亡，164 851人重傷，4 204個(gè)孩子成了孤兒。直接經(jīng)濟(jì)損失達(dá)30億元人民幣以上。地震罹難場(chǎng)面慘烈到極點(diǎn)，為世界罕見。預(yù)習(xí)案Group discussion： What can happen to a city during a big earthquake?寫出下列詞塊的含義1.tens of thousands of_ 2.bury the dead_ 3.the rest of the world _4.i

3、n the well walls_5.as usual_6.look for places to hide _7.get up on ones feet_ 8.become a home to_3.略讀文章匹配各段落和其大意Para.1 A.The earthquake caused unbelievable destruction to Tangshan.Para.2 B.The earthquake happened and caused deaths and injuries in Tangshan.Para.3 C.Help came soon after the quakes.Par

4、a.4 D.Strange things happened，but no one paid attention to them.Para.5 E.Tangshan came back to life again.分析句子Two thirds of the people who lived there were dead or injured. The number of people who were killed or badly injured in the quake was more than 400，000.Workers built shelters for survivors w

5、hose homes had been destroyed.Hundreds of thousands of people were helped.探究案Step1 lead inWhat can happen to a city during a big earthquake?Step2 預(yù)習(xí)檢測(cè)Para.1 A.The earthquake caused unbelievable destruction to Tangshan.Para.2 B.The earthquake happened and caused deaths and injuries in Tangshan.Para.3

6、 C.Help came soon after the quakes.Para.4 D.Strange things happened，but no one paid attention to them.Para.5 E.Tangshan came back to life again. Step3 detailed-readingTask 1(1)When did the earthquake happen?A.At night on July 28，1976.B.On the morning of July 28，1976.C.On the afternoon of July 28，197

7、6. D.The writer didnt tell us.(2)How many people who lived there were dead or injured?A.A half. B.Two thirds.C.One third. D.The text didnt tell us.(3)What does the sentence “Slowly, the city began to breathe again.” mean?A.The city will not die; it has hope and it can recover from the pain.B.The arm

8、y sent 150，000 soldiers to Tangshan to help people.C.Hundreds of thousands of people were helped.D.Most of the 10，000 miners were rescued.Task2Fill the form with words from the text.Step3 post-readingSeveral days before July 28, 1976, many strange things happened in Tangshan. The water in the villag

9、e wells rose _ fell. In the city, the water pipes in some buildings cracked and burst. They were _ (sign) for the earthquake. But people in the city didnt think much _ these events. At 3:42 am that day, the earth began to shake, _ destroyed the city. Many people, _ (include) rescue workers and docto

10、rs, came to rescue those _ (trap) under the ruins. _ (late) that afternoon, another big quake struck Tangshan. More people _ (kill) or injured and _(many) buildings fell down. Soldiers were called in to help the rescue workers. Teams were organized to dig out the trapped and to _ (bury) the dead.練習(xí)案

11、.單詞拼寫1.The machine we often use is driven by _電.2.His bad habit _(毀滅) his chance of having a bright future.3.After the woman heard that her husband was killed in the car accident，she went into _(休克).4.The police set a _(陷阱) to catch the escaped prisoner.5.She took a deep breath and sat up slowly wit

12、h great _(努力).6.Perhaps the day will come when people will be able to _(呼吸)clean air.7.Latest reports say that mud slides _(埋) entire villages.8.The number of families seeking shelter rose by 17 _(百分比).9.After learning that the boys had been lost for almost 20 hours，the police sent out a _(營救) team

13、to look for them.10.The government appealed to the International Red Cross to help the people suffering from the _ (洪災(zāi)).單句語法填空1._(bury) himself in the newspaper，he didnt notice what was happening.2.Years of fighting have left the city in _(ruin)；it would take a lot of money to rebuild it.3.The virus

14、 caused terrible _(suffer) to local animals.4.The boy walked in as if he _(buy) the whole school.5.He _(trap) in the traffic jam and felt helpless.6.If youre addicted to computer games，youll ruin _(you).7.Though the soldiers have been working for fifteen hours，they carry on looking for _(survive) in

15、 the ruins.8.The accident caused 3 _(die) and 20 injuries，which happened previous to his arrival there.閱讀理解Climate(氣候) change may make parts of the Middle East too hot for human beings，according to a new study.Researchers have studied weather conditions in the Middle East since 1970.The researchers

16、say “very hot” days in the area have doubled over that period.Right now，over 500 million people live there.In the future，the climate in large parts of the Middle East and North Africa could change because temperatures could get so high，and those living in the area could be at risk.Researchers say te

17、mperatures in summer in the Middle East and North Africa will continue rising.The researchers believe that by 2050，temperatures will not fall below 30 at night in the hottest part of the summer.During this period，day-time temperatures could rise to 46 .Extreme heat could continue past the 21st centu

18、ry.Researchers think temperatures in the middle of the day could reach as high as 50 .If mankind continues to send out carbon dioxide(二氧化碳) as it does now，people living in the Middle East and North Africa will have to expect about 200 unusually hot days.The researchers created two models.In one mode

19、l，rising temperatures are limited(限制) because of reductions(減少) in greenhouse gases.The other model is said to be a “business as usual” model where nothing is done to stop climate change.Under both models，the future of the Middle East is not good，the researchers say.They also say sooner or later，many people may have to leave this area.【語篇解讀】本文是說明文。一項(xiàng)新的研究表明，部分中東地區(qū)的氣溫正變得越來越熱，成為不適合人類居住的地方。1.What has happened in the Middle East since 1