Unit 4 Natural disasters Reading and Thinking 教案 高中英语新人教版必修第一册（2022-2023学年）

1、Unit4 Natural disastersReading & Thinking【学习目标】认识常见的几种自然灾害，如地震、森林火灾等；了解描述自然灾害的文章的语言特征，学会从中找出关键内容，并学会归纳段落大意；【学习重难点】获取描述自然灾害相关词汇和句型（重点）；学会掌握自然灾害话题相关词语，并能够正确利用(难点)；了解定语从句的作用和形式，为运用到自己的写作中做好准备（难点）。【文化视窗】20世纪中国3次大地震1.1976年7月28日，中国唐山发生里氏7.8级大地震，造成242 769人死亡。2.1927年5月23日，中国甘肃古浪发生8.0级地震，死亡4万余人。3.1920年12月16日

2、，中国宁夏回族自治区南部海原县一带发生8.5级地震，死亡28.8万人。唐山地震灾情唐山被夷成废墟，682 267间民用建筑中有656 136间倒塌或受到严重破坏，242 769人死亡，164 851人重伤，4 204个孩子成了孤儿。直接经济损失达30亿元人民币以上。地震罹难场面惨烈到极点，为世界罕见。预习案Group discussion： What can happen to a city during a big earthquake?写出下列词块的含义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.略读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 预习检测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.练习案

11、.单词拼写1.The machine we often use is driven by _电.2.His bad habit _(毁灭) 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 _(营救) team

13、to look for them.10.The government appealed to the International Red Cross to help the people suffering from the _ (洪灾).单句语法填空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.阅读理解Climate(气候) 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(减少) 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.【语篇解读】本文是说明文。一项新的研究表明，部分中东地区的气温正变得越来越热，成为不适合人类居住的地方。1.What has happened in the Middle East since 1