仁爱版九年级上Unit1-Topic2-Section-C课件(共30张PPT)

SectionC（录音）Unit1TheChangingWorld

Topic2Whichcountryhasthelargestpopulation?8888888,88888,888888,8888,888,88888,888,888888,888,8888,888,888,88888,888,888,888888,888,888,888Tonguetwister*What’sthepopulationoftheworld/China/…?*Whichcountryhasthelargestpopulation?*Thepopulationin____(develop)countriesislargerandisgrowing____(slower/faster)*Thepopulationproblemis____(moreserious/lessserious)indevelopingcountries.SaysomethingaboutthepopulationdevelopingReadparagraphoneandfillintheblanksAsiahadapopulationof_______________in2005.That’stosay,______oftheworld’spopulationliveinAsia.morethan3billionhalf3billion÷6.5billion≈1／2(half)50percent(50%)AlmosthalfofthepeopleintheworldliveinAsia.1.3billion÷6.5billion≈1／5(one20percent(20%)

OnefifthofthepeopleintheworldliveinChina.fifth)more

分数表达口诀：分子基数词，分母序数词，分子大于一，分母用复数Pre-readingquestionsWhatproblemsdoesalargepopulationcause？Becauseofthelargepopulation,thereis______(more\less)livingspace.Becauseofthelargepopulation,it’s______(difficult\easy)formanypeopletofindjobs.Becauseofthelargepopulation,weareshortof_______and_______.Becauseofthelargepopulation,thecitiesare______________thanbefore.Becauseofthelargepopulation,thetrafficis_____________.ReadparagraphtwoandfillintheblanksBecauseofthelargepopulation,thereislesslivingspace.Becauseofthelargepopulation,it’sdifficultformanypeopletofindjobs.Becauseofthelargepopulation,weareshortofenergyandwater.Becauseofthelargepopulation,thecitiesaremorecrowdedthanbefore.Becauseofthelargepopulation,thetrafficismuchheavier.What’sthetopicsentenceofparagraphthree?WhathasChinadonetocontrolthepopulation？ReadparagraphthreeandanswerthequestionsOne-childpolicy.Sofar,ourgovernmenthastakenmanymeasurestocontrolthepopulation.

SaysomethingaboutChina’sone-childpolicy.Whatistheauthor’sattitudetowardsthepopulationproblem？FreetalkOne-childpolicyhasworkedwellin

controllingChina’spopulation.Listenandread1amoreFreetalkandfinish1bTopic:thedisadvantagesofChina’slargepopulationpoorlivingconditionlowaveragepercapitaincomenotenoughfoodenvironmentproblemnotwelldevelopedcan’tofferthechildrengoodeducationThepopulationisincreasingby80millioneveryyear.Anditisgrowingfasterandfaster.Listento2aandfillintheblanksEveryminute,about261babiesarebornintheworld.Thatmeanspeoplehaveto

forabout375840newbornbabieseveryday.Theworld’spopulationisgrowing

.Ithasbecomeoneofthebiggestproblemstoday.Chinahasthelargestpopulationintheworld.Thereareabout1.3billionpeopleinChina.Ithasreached

percentoftheworld’spopulation.China

somepoliciestocontrolthepopulation,andthesepolicies

well.ButChinastillfacesaseriouspopulationproblem.findfoodfasterandfaster20hascarriedouthaveworked录音Read2aandmarkTorFin2b()1.Abouttwohundredandsixty-onebabiesareborninChinaeveryminute.()2.Thegrowthoftheworld’spopulationisbecomingslowerandslower.()3.NowthepopulationofChinaisabout1300000000.()4.Chinahastwofifthsoftheworld’spopulation.()5.TheChinesegovernmenthassolvedthepopulationproblemsuccessfully.FFTFFWrittenworkPopulationproblem｛CurrentsituationHowtodealwithitThepopulationofChinaThepopulationinthecountryDifficultiescausedbylargepopulation｛preferboysSumupHowtoreadthefractions(分数)inEnglishbeshortofsofartakemeasuresto

workwellinHomework完成同步练习册SectionC。WriteacompositionaboutThePopulationinChina。Goodbye!onesixthoneninthonetwentiethfivesixthstwoninthsseventwentiethsattentionone(a)half

aquarter=onefourththreequarters=threefourths

threeandahalfbackpastnowsofarSo