Unit1TheChangingWorldSectionCTopic2一、掌握以下單詞：social,supply,natural,worse,sofargovernment,take

measurestodosth,thankstosb/sth等。二、Keysentences：⑴…andaboutonefifthofthepeopleintheworldliveinChina.⑵…ourgovernmenthastakenmanymeasurestocontrolthepopulation.⑶Thankstothepolicy,Chinaisdevelopingquicklyandpeople’sliving

conditionsareimprovingrapidly.三、強化練習現(xiàn)在完成時的用法。四、談論世界和中國人口問題。Languagegoals

Newwords:1.socialadj.社會的；社交的2.worseadj.更差的，更糟的

adv.更差，更糟3.supplyv.

提供，供應

n.供應量；補給；供應4.sofar到目前為止5.governmentn.政府，內(nèi)閣6.takemeasurestodosth.采取措施做某事7.thanksto幸虧，由于

Newwords:8.naturaladj.天然的；天生的9.paragraphn.

段；段落10.opportunityn.機會，時機

11.newbornadj.

新生的，初生的12.percentn.百分之......

13.offerv.提供（東西或機會）；主動提出知識梳理Keypoints分數(shù)詞的表達法:

1.結(jié)構(gòu):

a)分子用基數(shù)詞，分母用序數(shù)詞。1/3—onethird(one-third)

b)當分子大于1時，分母加復數(shù)。

3/4—threefourths(three-fourths)

2.分數(shù)詞的幾種特殊形式：

1/3—onethird=

athird1/4—onefourth=aquarter

1/2—onesecond=ahalf3/4—threefourths=threequartersKeypoints分數(shù)用法注意：a)分數(shù)作定語時，與所修飾的名詞之間加of。e.g.我們班三分之二的學生是男生。________________thestudentsinourclassareboys.

b)分數(shù)后面可接可數(shù)名詞，也可接不可數(shù)名詞，謂語動詞的單復數(shù)和分數(shù)詞后的名詞保持一致。

Twofifthsofthemilk______(be)drunkbyTom.

Onethirdofthestudents_______(be)girls.isareTwothirdsofThepopulationindevelopingcountriesislargerthanthatindevelopedcountries.Chinahasthelargestpopulation.Whatproblemsdoesthelargestpopulationcause?It’s7,898,236,143.What’sthepopulationoftheworld?Whatalargepopulation!Keyphrasesbecauseof 由于lesslivingspace 更少的生存空間atthesametime 同時supplysth.tosb.=supplysb.withsth. 提供某物給某人providesth.forsb.=providesb.withsth.提供某物給某人offersb.sth.=offersth.tosb. 提供某物給某人satisfypeople’sdailyneeds 滿足人們的日常需求naturalenvironment 自然環(huán)境sofar 到目前為止toomuchnoise

toomanypeoplePopulationincreaseisabigprobleminChina.Thatcausesalotofproblems談論人口壓力導致的社會問題PopulationproblemsWhatproblemsdoesthelargepopulationcause?ReadParagraph1andfillintheblanks.Asiahasapopulationof_________________.That’stosay,almost______ofthepeopleintheworldliveinAsianow.morethan3billionhalfParagraph1Theworld’sandAsia’spopulation.1.Edisonisknown_____agreatinventor.A.asB.forC.inD.on2._____yourhelp,Imadegreatprogressinmath.A.Thanksto B.ThanksforC.Thankto D.Thankfor3._____largepopulation,manyproblemsbegantoappear.A.BecauseofB.BecauseC.SoD.AsAAAKeyphrases10.takemeasurestodosth.采取措施做某事

11.workwellindoingsth. 在做某事方面起到好的效果12.thanksto 多虧了13.livingconditions 居住條件14.dealwith 處理15.offerjobopportunities 提供就業(yè)機會3billion÷6.8billion≈1／2(a/onehalf)50percent(50%)AlmosthalfofthepeopleintheworldliveinAsia.In2010,theworld'spopulationwasabout6.8billion.MorethanthreebillionpeopleliveinAsianow.That'salmosthalfoftheworld'spopulation.2010年，世界人口約68億，現(xiàn)在亞洲居住的人口超過了30億，它幾乎是全世界人口的一半。1.3billion÷6.8billion≈1／520percent(20%)About

onefifth

ofthepeopleintheworldliveinChina.oneWhatsocialproblemshasitcausedParagraph2Theproblemscausedbylarge

population.fifthonesixthoneninthonetwentiethfivesixthstwoninthsseventwentiethsATTENTION分基母序Chinahasthelargestpopulationintheworld,andaboutonefifthofthepeopleintheworld

live

inChina.中國擁有世界上最多的人口，世界上大約五分之一的人口居住在中國Becauseofthelargepopulation,thereis

lesslivingspaceforeachfamily.因為人口龐大，每個家庭居住空間更小。Andit'sdifficultforlotsofpeopleto

findjobs.對很多人來說，找工作是很難的.Atthesametime,thelargepopulationhascausedmanyotherdifficultiesforthewholenation.同時，龐大的人口對整個國家也引發(fā)很多其它的困難。situationnow...havetakenmeasuresto......worked......areimproving......isbecoming...one/ahalf

aquarterthreequartersthreeandahalfBecauseofthelargepopulation,thereis__________________foreachfamily.ReadParagraph2andfillintheblankslesslivingspaceBlackboardDesignLargePopulationsocialproblemlesslivingspaceThereis...for...in....fewerjobopportunitiesItis...for...to....lesswaterandenergyItis...for...to...to....MorecrowdedcitiesManycitiesare....HeaviertrafficThetrafficis....situationnow...havetakenmeasuresto......worked......areimproving......isbecoming...Naturalenvironmentsarebecomingworseandworse.自然環(huán)境正在變得越來越糟糕。Thelargepopulationhasbeenaseriousproblem.龐大的人口已經(jīng)是一個嚴峻的問題。

Sofar,ourgovernmenthastakenmanymeasurestocontrolthepopul