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1、【基础知识巩固】1aListen,lookandsay・Maria:Hello,Michael.Ihavejustcalledyou,butyouweren'tin.Wherehaveyoubeen?Michael:IhavejustbeentoashoppingcenterwithKangkang.I'veneverbeentherebefore,butIdontwanttogothereanymore.Maria:Why?Michael:Becausethereweretoomanypeople.Wegotl
2、ostandcouldn'tfindeachother.Maria:Badluck!Haveyoufoundhimyet?Michael:No,hehasprobablygonehome.Let'scallhimupnow.Ireallyhategoingtoaplacelikethat.Maria:SodoI.U1T2SA1getlost走失,迷路。其中lost为形容词，其近义词有missing和gone。e.g.Ifoundmybikemissing•我发现我的自行车丢了。Mypenislost.我的笔丢了。
3、2callup给……打电话，名词作宾语吋可以放在up后面或两词之间；宾语是代词时，必须放在两词之间。e.g.IcalledTomupyesterday,buthedidn'tanswerit.昨天我给汤姆打电话，但他没有接。F11callyouupassoonasIcomeback.我一回来就给你打电话。同义词组：ringup,makeatelephonecalk3already常用于肯定句中，指动作已经发生，或比期望发生的要早，一般用在句子中间或句末；yet用于疑问句和否定句中，谈论尚未发生但可能发生的事，通常
4、位于句末。e.g.一Haveyouhadyourlunchyet?你吃过午饭了吗？一Yes,Fvealreadyhadit.是的，我已经吃过了。1aLook,listenandsay.(Kangkangisreadingareportonpopulationinthenewspaper.)Kangkang:Wow!Whatalargepopulation!Maria:What?Kangkang:Look,itsaystheworldhasapopulationof6.8billion・Anditisincreas
5、ingby80millioneveryyear.Maria:Mmm,that'sreallyalot.Whichcountryhasthelargestpopulation?Kangkang:Chinahasthelargestpopulation.Ithasalreadyreachedl.3billion,andIndiaissecondwithl.lbillion.Maria:What'sthepopulationoftheUSA?Kangkang:309million.Maria:Oh,Isee.Itsho
6、wsthatthepopulationindevelopingcountriesislargerthanthatindevelopedcountries,doesn'tit?Kangkang:Yes.What'smore,thepopulationindevelopingcountriesisgrowingfaster.Maria:Soitis.Thepopulationproblemhasbecomemoreseriousindevelopingcountries.Kangkang:Luckily,Chinah
7、asalreadycarriedouttheone-childpolicytocontrolthepopulation.U1T2SB1population意为"人口居民”,常用形容词large或small来表示人口的多少。e.g.Chinahasthelargestpopulationintheworld.中国拥有世界上最多的人口。注：常用句式：What9sthepopulationof...?意为"人口是多少？"haveapupulationof...意为"有人口”e.g.Chinahasapupulation
8、ofl.3billion.中国有13亿人口。2increasev.（使）增加,（使）增大,增多＜,increaseby+倍数或百分数，表示“增加了……倍或百分之……二e.g.Comparedwithlastyear,ourpayhasincreasedbythreetimes.与去年相比，我们的工资增长了3倍。increaseto+具体的增长后的数字，表示“增加到了……e
