高中英语 Unit 22 Lesson 3 Natural Disasters 课件2 北师大选修8.ppt
Lesson 3Unnatural Disasters 2021/8/11 星期三1Exercise 1which of the disasters in the key words do you think are:(a)caused by people?(b)made worse by people?(c)natural?Key words:disasters droughts,earthquakes,floods,Forest fires,hurricanes.Landslides,tsunami,typhoon,Volcanic eruptions,windstorms2021/8/11 星期三2Exercise 2Read the article and check your answers to exercise 1.reading strategies:completing Texts with sentence gaps (a)read the text to get the general idea.(b)read a paragraph with asentence gap and identify the topic,e.g.disasters.(c)read the sentences before and after the gap and look for clues about the missing setence,e.g.is it an example of what is mentioned before?(d)certain words may help you:time references(then).pronoun references(it,that),linking words(however),(e)decide which sentence goes in the gap.check that it fits the sentences before and after it.2021/8/11 星期三3ANSWERS:Caused by people:forest firesMade worse by people:hurricanesNatural:floods,droughts,windstorms,earthquakes,volcanic eruptions,forest fires,hurricanes2021/8/11 星期三4Exercise 3Use the strategies to complete the gaps in the text(1-5)with theseSentences(a-g).There are two extra sentences you do not need.(a)But geological evidence shows that 73.000years ago there(b)was a much greater eruption.(c)(b)Even prosperous europe has suffered and large areas of(d)france,britain and germany have all been under waer.(e)(c)That is probably not the most important factor either.(f)(d)third,the other bits of land you might have been able to(g)farm are now useless.(h)(e)On top of all that,add climate change and the spectre of(i)global warming.(j)(f)For example,the yellow river,once notorious for tlooding(k)the chinese landscape,failed to reach the sea at all on 226(l)days in 1997(m)(g)One answer is over-population.(1)(2)(3)(4)(5)2021/8/11 星期三5Exercise 4Read the text again and answer these questions.1What is the attitude of the journalist towards the future?2Who are most likely to be the victims of natural disasters?3Why are there now more hurricanes,floods and droughts?4Why are volcanoes and earthquakes more dangerous now?5What could be the biggest threat to the planet in the future?6What effects might this threat have?2021/8/11 星期三6Answers 1.Pessimistic2.Poor people3.Overpopulation and mismanagerment of the worlds resources4.Because half the worlds population lives in cities within range of volcanic eruptions and earthquakes5.A volcanic eruption6.It might plunge the planet into winter for years.2021/8/11 星期三7Exercise 5Look at the words form the text(1-10)and the other examplesIn brackets,match the prefixes with the meanings(a-j).(1)overpopulation(overgrown,oversleep)(2)Substandard(subway,submarine)(3)deforestation(defuse,dehydration)(4)downhill(downstream,downgrade)(5)undernourished(underpaid,undercooked)(6)rebuild(replace,rewind)(7)Unstable(unusual,uncommon)(8)Semi-active(semi-circle,semi-final)(9)Multinational(multi-purpose,multi-racial)(10)Mismanagement(misunderstand,misplace)(a)Again (f)opposite of an action(b)Wrongs (g)not enough(c)Below (g)downwards(d)Too much (i)opposite of an adjective(e)Many (j)partly/half2021/8/11 星期三8Answers:1.d)2.c)3.f)4.h)5.g)6.a)7.i)8.j)9.e)10.b)2021/8/11 星期三9Exercise 6Complete the sentences with words form exercise 5 in a suitable form.(1)After the storm they had to hundreds of houses which had(2)been damaged.(3)(2)Many people in the developing world suffer from diseases because(4)they are of the competition.(5)(3)Our team was knocked out in the of the competition.(6)(4)The bomb was about to go off but the experts managed to it.(7)(5)I the question and failed the exam.(8)(6)I yesterday and arrived an hour late for class.(9)(7)A lot of houses collapsed in the erathquake(10)because of construction.(8)Floods are not these days;they happen more and more often.2021/8/11 星期三10Answers:1.Rebuild 2.undernourished 3.semi-final2.4.Defuse 5.misunderstood 6.overslept3.4.7.sub-standard 8.unusual2021/8/11 星期三11Exercise 7Work in pairs.Discuss these questions.(1)What natural disasters have happened in the last few months?(2)What do you think governments can do to help prevent natural(3)disasters?(4)(3)What organisations do you know that provide environment?(5)(4)What can we do as individuals to improve the environment and(6)help victims of natural disasters?2021/8/11 星期三12Natural disasters2021/8/11 星期三132021/8/11 星期三142021/8/11 星期三152021/8/11 星期三162021/8/11 星期三172021/8/11 星期三18 Exercise 2 in page 562021/8/11 星期三19GOODBYE2021/8/11 星期三202021/8/11 星期三21
