Unit1TheChangingWorldTopic2SectionB课件仁爱科普版九年级英语上册

Unit1TheChangingWorldSectionBTopic2Thepopulationindevelopingcountriesisgrowingfaster.Bytheendoftheclass,youwillbeableto1.Masterthefollowingwords,phrasesandsentences:Words：population,billion,increase,reach,luckily,policy,Russia,measurePhrases:

increaseby,developingcountries,developedcountries,carryout,theone-childpolicySentences：①Whatalargepopulation!

②Theworldhasapopulationof6.8billion.③Soitis.2.ReadnumbersinEnglish.3.Talkaboutpopulationproblems.LanguagegoalsRevision1.给某人打电话2.在家3.再也不...4.走失，迷路5.我也是6.讨厌做某事7.去散步callsb.up=ringsbup=makeatelephonecalltosbbein=beathomenot...anymore=nomoregetlost=loseone'swaySodoI.hatedoingsth.have/takeawalk543.715623980fivehundredandforty-threepointsevenonethousand,fivehundredandsixty-twothreethousand,ninehundredandeightyReview（说出下列数字的英文表达），，thousandbillionmillionthousand6666

666666一划二找三读四放把数字从右往左划分，每三个数字为一组，并在数字间标逗号，，，找逗号一逗读

thousand二逗读

million三逗读

billion照常读1.So+be/情态动词/助动词+主语（表肯定）（表示上文提到的肯定情况也同样适合另外一个人或物，

前后主语不是同一个人或物）

Neither/Nor+be/情态动词/助动词+主语（表否定）注：neither/nor句型中没有not出现。（表示上文提到的否定情况也同样适合另外一个人或物）▲So+主语+be/情态动词/助动词（表示对前面事实的肯定，前后主语是同一个人或物,意思是“的确如此”）2.already意思是“已经”，通常用于肯定句中。

yet可用于否定句，“还”；也可以用于疑问句，译为“已经”

just只用于肯定句意思是“刚才”never用于否定句译为“从不”

ever用于疑问句译为“曾经”完成时态常见副词justnevereveralreadyyetbefore含义刚刚从不曾经已经还（没）以前位置句中句中句中句中/末句末句末句式肯定句否定句一般疑问句肯定句否定句/一般疑问句肯定句2346780twoLook,readandlearn

说出下列数字的英文表达一划二找三读四放，，millionthousand口诀：threehundredandforty-sixsevenhundredandeightybillionmillionthousand6666

666666，，，sixbillion,sixhundredandsixty-sixmillion,sixhundredandsixty-sixthousand,

sixhundredandsixty-sixsixhundredandsixty-sixsixsixhundredandsixty-sixsixhundredandsixty-six一划二找三读四放选用所给单词或词组填空already,yet,ever,never,havebeento,havegoneto1.Tomhas_______________finishedhishomework.

Nowheisplayingfootballontheplayground.2.Haveyou__________beentotheGreatWall?3.Shehasn'tcomeback_______________.4.Ihave____________heardofthatbefore.Itissostrange.5.Hashekeptthebook_______________?6.-Haveyouseenthefilm?---Yes.Ihave__________________seenit.7.__________youever_______________Hainan?8.Mr.Wangisn'there.He________________Shanghai.just/alreadyeveryetneveryetjust/alreadybeentohasgonetoHave

Newwords:1.populationn.人口，人数

2.billionnum.

十亿3.increasev.（使）增加，（使）增大

n.增加，增大4.reachv.实现；够得着；到达5.luckilyadv.幸运地6.policyn.政策，方针7.Russian.俄罗斯8.measuren.措施，方法6004001sixLook,readandlearn

说出下列数字的英文表达一划二找三读四放，，millionthousand口诀：fourandone525119000fivehundredandtwenty-fiveLook,readandlearn

说出下列数字的英文表达一划二找三读四放，，millionthousand口诀：onehundredandnineteenMakesimilarconversationsaftertheexample.Example:A.:What’sthepopulationoftheworld?B:It’sabout7.2billion.1.theworld2.China3.India4.theUSAA.321millionB.7.2billionC.1.37billionD.1.31billion(Kangkangisreadingareportonpopulationinthenewspaper)Kangkang:Wow!Whatalargepopulation!Maria:What?Kangkang:Look,itsaystheworldhasapopulationof7.2billion.Anditisincreasingby90millioneveryyear.Maria:Mmm,that’sreallyalot.Whichcountryhas

thelargestpopulation?Kangkang:Chinahasthelargestpopulation.Ithasalreadyreached1.37billion,andIndiaissecondwith1.31billion.Maria:What’sthepopulationoftheUSA?Kangkang:321million.Maria:Oh,Isee.Itshowsthatthepopulationindevelopingcountriesislargerthanthat

indevelopedcountries,doesn’tit?Kangkang:Yes.What’smore,thepopulationindevelopingcountriesisgrowingfaster.thelargestpopulation?Maria:Soitis.Thepopulationproblemhasbecomemoreseriousindevelopingcountries.Kangkang:Luckily.Chinahasalreadycarriedoutsomepolicies

tosolvetheproblem.Read1aandfillintheblanks.

Theworldhasapopulationof7.2billionanditisincreasingby__________everyyear._______hasthelargestpopulation.Ithasalreadyreached__________andIndiais_________with1.27billion.Thepopulationindevelopingcountriesis______andisgrowing________thanthatindevelopedcountries.Luckily,ourcountryhascarriedoutsomepoliciesto______thepopulation.90millionChina1.37billionsecondlargerfastercontrolPleaseparaphrasethedialoglikethis:（请转述对话）Kangkangisreadingareport.Itsaystheworldhas...in2014.Andit...82millioneveryyear.China`spopulationhas...1.36billion.Indiahas....TheUSAhas....Thereportalsosaysas.....,therewillbe....Weshouldfind...toprotect....forexample,...Onlyby...canwe....

学生课堂学习自查量表1.有关数字的词汇我会读会写会用的有：2.对于文章中提到的各个地方的人口，我会说的有：3.5个交际用语，我会了：4.八个词组，我会了：5.是否会复述对话：6，是否会转述对话：

人口问题知多少对画线部分提问1.ThepopulationinChinaisover1.4billionnow.

What

is

thepopulationinChinanow？

2.ThepopulationinChinawas1.36billionthreeyearsago.

What

was

thepopulationinChinathreeyearsago？

3.Thereareabout1.27billionpeopleinIndianow.

How

many

peoplearethereinIndianow？

WhatisWhat

wasHowmanyListen，lookandsay.短语速记1.增加了

increase

by

2.发展中国家

developing

country

3.发达国家

developed

country

4.实施；执行

carry

out

5.采取措施

take

measures

increase

bydeveloping

countrydeveloped

countrycarry

outtake

measures增长了...增长到...有...人口发展中国家实施采取措施做某事确实如此increaseby...increasetohaveapopulationof...developingcountriescarryouttakemeasurestodosth.Soitis.Read1acarefullyandfindthephrases.BlackboardDesign1,你在读什么？2，报道里写了什么？3，美国的人口是多少？4.它还说其他什么内容？5，多于这些问题我们该

怎么做？1.一份关于世界人口的报道2，72亿人口3，增长了八千二百万4，达到了十三亿六千万5，随着人口增长6，保护环境的新方法7，制定新的规则和政策8，创造一个更美好的未来Workingroupsanddiscussthepopulationoftheworld.Thefollowingchartandquestionsmayhelpyou.1.Whichofthese5countrieshasthelargest/smallestpopulation?What’sthepopulationofit?2.Whatcanyoutellfromthepopulationindevelopingcountriesandindevelopedcountries?3.Whatproblemsdoesthelargepopulationcause?4.Whatmeasuresdoyouthinkshouldbetakentosolvethepopulationproblem?Thepopulationindevelopingcountriesislargerthanthatindevelopedcountries.Chinahasthelargestpopulationwith1.37billion.Canadahasthesmallestpopulationwith35million.Thelargepopulationmaycauselesslivingspace,morepollutionandsoon.一、句子速译1.康康正在报纸上看一篇关于人口的报道。Kangkang

is

reading

a

report

on

population

in

the

newspaper.

2.它每年正以八千万的速度增加。It

is

increasing

by

82

million

every

year.

3.哪个国家的人口最多？Which

country

has

the

largest

population？

Kangkang

is

reading

a

report

on

populati