河南省洛阳市宜阳县第一高级中学高中英语选修八 UNIT22 LESSON 3 课件 .ppt

1、Lesson 3 Natural Disasters(SKILLS FOCUS)Teaching objectives In this lesson,we will:1.practise reading strategies to complete texts with sentence gaps.2.talk about disasters with the help of the learnt vocabulary about/concerning natural disasters.Step 1:Lead in:(Lead in the topic&prepare active voca

2、bulary for learning the passage)Today it is May X,around this time last year,an earthquake attacked Wenchuan.It was on a grand scale.Thousands of people lost their wives,children The separation from their families made them live a rough(or hard)time.During the quake,houses fell down.In the mountaino

3、us area stones,bricks slip and slidedownhill in the landslides.People lived in shabby houses or tents.However Sichuanese are very strong.With the help of the whole nation,they constructed their homes soon.Now a new Wenchuanstands in front of us.1.grand adj big and very impressive巨大的2.scale n the siz

4、e or level of sth规模，大小3.separation n the condition of being separated分离，分开.4.rough adj unpleasant or difficult艰难的5.mountainous adj having many mountains多山的6.slip v fall off 滑落7.slide v to move smoothly over a surface滑行8.landslide n sudden fall of a lot of earth or rocks down a hill,cliff 滑坡，山崩9.shab

5、by adj old and in bad condition 破烂的10.construct v build 建造1.grand adj2.scale n 3.separation n 4.rough adj5.mountainous adj6.slip v 7.slide v 8.landslide n 9.shabby adj10.construct v Do you still remember them?Step 2:Task:Learn more about Natural Disasters and their causesBesides earthquake,there are

6、 many natural disasters,can you name some?earthquake1.Brainstormingtsunami What kind of disaster is it?Flood volcanic eruption Hurricane forest fire typhoonLandslide Vocabulary about natural disasters tsunami 海啸 typhoon 台风 volcanic eruption 火山喷发 flood 洪水 landslide 滑坡，山崩 hurricane 飓风,狂风Read aloud and

7、 memorize them What do you think causes the disasters,people or nature?2:Further Exploration:Read the article and check your answer-What causes the disasters?3:Check your prediction Both people and natureStep 2:Task:Learn to use Reading Strategies:Completing texts with sentence gaps (In lesson 3,P38

8、,Unit 21,Module 7,we have learn the reading strategies:Sequencing of information,which are quite similar to strategies learnt in this lesson.)(Today lets study lesson 3“NATURE IS TURNING ON US.”and do more research into the natural disasters)1st Reading1st ReadingReading strategy 1 skimming Read the

9、 text to get general idea.(2m)(When you encounter new vocabulary,skip it.)Natural disasters are getting worse because of human activities.Reading strategy 2 skimmingRead a paragraph with a sentence gap and identify the topic,e.g disasters.Para 1:Para 2:Para 3:Para 4:Para 5:An example of volcanic eru

10、ption&earthquake show their threat to our world.Causes of natural disastersUrbanization&industrialization Overpopulation in cities makes more people in the danger of natural disastersExperts predict that natural disasters willget worse Examples show natural disasters become common3g2f 2nd readingRea

11、ding strategy 3 Read the sentences before and after the gap and look for clues about the missing sentence,e.g.is it an example of what is mentioned before?Reading strategy 4 Certain words may help you:time references(then),pronoun references(it,that),linking words(however).namely,Scanning:Look for c

12、lues/reference words+1.Tsunamis,flooding underwater B2.Irrigation canals,water the Yellow River F4.This has been caused by carbon dioxide&destruction of forest.Global warming E5.难（排除法）studies volcanoes,the worst eruption there was a much greater eruption.A References3.Population,growing at the distu

13、rbing rate overpopulation GReading strategy 5 Decide which sentence goes in the gap.Check that it fits the sentences before and after it.(Are all paragraphs coherent?)(Ex 3 P10):Use the Strategies to complete the gaps in the text(1-5)with these sentences(a-g).There are two extra sentences you do not

14、 need.a)But evidence shows that 73,000 years ago there was a much greater eruption.b)Even Europe has suffered and large areas have been under water.c)That is probably not the most important factor either.d)Third,the other bits of land you might have been able to farm are now useless.e)On top of that

15、 add global warming.f)For example,the Yellow River,once famous for flooding,failed to reach the sea at all for 226 days in 1997.g)One answer is overpopulation.Keys:1.b 2.f 3.g 4.e 5.a Step 3:Scanning(Ex 4 P11)Read the text again and answer these questions.1.What is the attitude of the journalist tow

16、ards the future?Pessimistic.2.Who are most likely to be the victims of natural disasters?Poor people.3.Why are there now more hurricanes,floods and droughts?Overpopulation and industrialization.4.Why are volcanoes and earthquakes more dangerous now?A big population in cities(or urbanization)5.What c

17、ould be the biggest threat to the planet in the future?A volcanic eruption.6.What effects might this threat have?Low temperature(A freezing weather).Step 4:Text summary Fill in the blanks about the text.In the last _ years,there are more and more disasters such as _,_,thunderstorms,earthquakes,_,vol

18、canic _and _ fires all over the world.Why are so many disasters?One of the reasons is over-_.ten floodstsunamistyphoons eruptions forest population_ addition,_ change and global _ caused by factories,vehicles and deforestation can lead _ the disasters or make them worse.At present,volcanoes and eart

19、hquakes are more _ with the fast _ of people.Inclimate warmingtodangerous growthEarthquakes take the lives of 1.6 million people in the last hundred years.What is worse,the disaster experts predict that the things will get _.worse Step 5:Retell the passage with the help of clues and vocabularyPara 1

20、:Para 2:Para 3:Para 4:Para 5:Examples of volcanic eruption&earthquake show their threat to our world.One cause of natural disastersUrbanization&industrialization Overpopulation in cities makes more people in the danger of natural disastersExamples show natural disasters become commonExperts predict

21、that natural disasters will get worse 1.grand adjbig and very impressive巨大的2.scale n the size or level of sth规模，大小3.separation n the condition of being separated 分离，分开.4.rough adjunpleasant or difficult艰难的5.mountainous adj having many mountains多山的6.slip v fall off 滑落7.slide v to move smoothly over a

22、 surface滑行8.landslide n sudden fall of a lot of earth or rocks down a hill,cliff 滑坡，山崩9.shabby adjold and in bad condition 破烂的10.construct v build 建造tsunami 海啸volcanic eruption 火山喷发 typhoon 台风flooding洪水 landslides 滑坡，山崩 hurricane 飓风,狂风VocabularyHomework1.Read the passage at least twice.2.Find and an

23、alyze the long and difficult sentences in the passage.3.P58&59 Focus on Reading4.Passage A&B on the handout.Thank you!See you next class!2nd Period Teaching objectives In this lesson,we will:1.Learn and practise vocabulary about natural disasters，esp collocations.2.Practise identifying nouns and ver

24、bs.Step 1 Guessing the new vocabulary1.Nature is turning on us.turn on sb.:attack 攻击,变得与敌对e.g.The dog turned on me and bit me in the leg.Erlang turned on Lisa,who,he thought,had deceived him.2.A number of nations have already been in armed conflict over water.(L8,Para 1)armed conflict over water/lan

25、d 因水/土地而引起的武装冲突3.The tsunami killed 132,000 Indonesians and another 100,000 people of other nationalities.This catastrophe is still very fresh in the minds of people worldwide who have not get over their separation from loved ones lost in the tsunami.(L7,Para 2)catastrophe-a great,often sudden disas

26、ter 4.had to flee as they thought it was about to erupt.flee-to run away,as from trouble or dangerStep 2.Learn Collocations1.reduced rainfall 减少了的降雨量2.irrigation canals 灌溉渠道3.be in armed conflict over water因水而引起的武装冲突4.volcanic eruption 火山爆发5.be a threat to sb/sth 对构成威胁1.6.recover from a tsunami 2.从海

27、啸（的灾难）中恢复过来3.7.be fresh in the minds of people在人们的心目中记忆犹新8.get over their separation from loved ones lost in the tsunami 从与海啸中丧失亲人的打击中恢复过来9.construct shabby homes搭建破烂的房屋10.slip and slide downhill in the landslides 在山体滑坡时滑下山坡11.howling winds with speeds of 300 km/h每小时300公里（咆哮）的大风12.live within the ra

28、nge of a volcanic eruptions生活在火山喷发的范围内13.occur at random times 不定时发生14.to some degree 在某种程度上15.The earthquake claimed 1.6 million lives.地震夺取了160万人的生命。16.Dust rolled across the skies.灰尘席卷天空。17.It reduced temperatures by 6C.它使天气降低6摄氏度。Step 3:OutputTask 1 Tell a natural disaster to your foreign English

29、 teacher with the help of the given collocations.Topic 1:The 5.12 Wenchuan EarthquakeTopic 2:The 1998 Flood in South ChinaTopic 3:An imaginary disaster in 20XXMake your presentation Step 4 Vocabulary learning strategy-enlarge your vocabulary via learning homograph 5hCmEurB:f 同形异义字egflood n洪水 v淹没,使泛滥

30、（L1)fire n 火v 开除（L2)arm n胳膊v 武装（L8)water n水v 浇水（L9)-Can you find more just in the passage?Practise identifying nouns and verbsEx5:Decide if the underlined words in the sentences below are nouns or verbs.Then write down their Chinese meanings.1.a)She put her arms around me to comfort me.b)The soldier

31、s were armed with guns.noun 手臂verb 武装2.a)Heavy rains resulted in floods.b)His results were not as good as he had hoped.3.a)He means well but just gets it wrong sometimes.b)The telephone is a means of communication.verb 引起noun 结果verb 本意是noun 方法4.a)The children had fun sliding down the slide all after

32、noon.b)Penguins slide downhill over ice on their bellies.5.a)Be careful!Dont slip on the wet floor.b)Write your number on this slip of paper.noun 滑梯verb 滑动verb 滑倒noun 纸条6.a)What would you like on your bread roll for lunch?b)He rolled the ball across the floor to me.noun 面包verb 滚动Ex 6:Complete the se

33、ntences with the correct forms of the words above.1.The _ forces protected the city.2.When will you get your exam _?3.Don broke his arm when he _ and fell on the ice.4.I _ what I said.5.What would be the best _ of advertising our product?armedresultsslippedmeantresult6.Would you like honey on your _?7.The house _ down the mountain side in the flood last year.8.The match _ in a draw.They had 2 points each.rollresultedslidedHomework1.Write a short passage about a natural disaster.5-8 sentences will be enough.2.P56 EX 13 Ex 4,5 are more challenging.Thank you!