重点、难点、语法.ppt

重点、难点、语法点20and4FY1、Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,forwhomhehasstruggledforthepastfivedecades.的确，他那被太阳晒得黝黑的脸庞和手臂，以及他那瘦削而又结实的身体就跟过去五十年他一直在帮助的千百万的中国农民一样。完成时态的时间表达：（1）for+段时间多长时间以来（2）before以前（3）since+时间点自从什么时间since+时间段+ago自从多长时间以前since+从句自从sincethen从那以后（4）recently;lately;inrecent+时间最近；最近多长时间（5）sofar;byfar;uptillnow;bynow到现在为止（6）bytheendof/bythetime到时间结尾（7）in/during/forthepast/last+时间段在过去的多长时间里特别提示：（1）如果句子中有以上时间，句子一般要用完成时。（2）before后不能跟时间；否则句子用过去时态。（3）bytheendof/bythetime多用于过去完成时或将来完成时。即时活用：1、_severalyearshehasbeenworkinglikethis.A.InB.AfterC.ForD.Si答案：C2、Theheavyrainfallhascausedvegetablepricestorisedaily_thelasttwomonths.A.byB.sinceC.forD.with答案：C3、WheredoesMrZhanglive?-Hehasbeenontheisland_theendoftheLongMarch长征.A.sinceB.byC.inD.at答案：A4、IhavebeeninLondontwice_1965.A.inB.sinceC.duringD.when答案：B2、Dr.Yuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.袁博士寻找一种在不扩大土地面积的情况下增加收成的办法.searchvt.搜查Theguardssearchedthehousecarefully.警卫仔细搜查了整个房子。Theysearchedthewoodsforthelostboy.他们搜查整个森林寻找丢失的小孩。联想扩展:（1）searchfor寻找Whatareyousearchingfor?（2）searchonesheart扪心自问IoftensearchmyheartifIamacompetentteacher.我常扪心自问我是不是一个称职的老师（3）insearchof寻找Westartedatonceinsearchofsomethingtoeat.我们立刻开始寻找可吃的东西。3、Dr.Yuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.袁博士寻找一种在不扩大土地面积的情况下增加收成的办法。expandvi.&vt.（1）膨胀；扩大Xianisexpandinginalldirections.西安正在向四周扩大。（2）加大；使膨胀Hehasexpandedhisbusiness.他把生意扩大了。5、Thankstohisresearch,theUNhasmoretoolsinthebattletoridtheworldofhunger.多亏了他的研究，联合国在消除世界饥饿的战斗中又多了些方法。thanksto幸亏；多亏；由于Thankstotheteachershelp,Ivemadesomeprogresswithmymath.下列词组中的to为介词lookforwardto期望be/getusedto习惯于payattentionto注意getdownto开始认真做devoteto贡献stickto坚持；遵循preferdoingto喜欢胜过于6、Usinghishybridrice,farmersareproducingharveststwiceaslargeasbefore.用他的杂交水稻种子，农民们种出的粮食比以前多了一倍。倍数表达法（1）倍数（百分数）+形容词比较级+than+比较对象增加倍Thisroomisthreetimesbiggerthanthatone.这个房子比那个房子大三倍。（2）倍数+as+形容词原形+as+比较对象是的几倍Thisroomisthreetimesasbigasthatone.这个房子是那个房子的三倍。（）倍数+upon+比较对象增加倍Thenumberofstudentsinourschoolnowis200%uponthatoflastyear.我们学校现在的学生数量比去年增加了两倍。（）倍数+over+比较对象增加倍Thenumberofstudentsinourschoolnowis200%overthatoflastyear.我们学校现在的学生数量比去年增加了两倍。(5)倍数+the+名词+of+比较对象是的几倍Thisbridgeisthreetimesthelengthofthatone.这座桥的长度是那座桥的三倍。1、SomepartsinSouthChinahaveexperienced_thisyearastheydidlastyear.A.twiceasmuchrainB.raintwiceasmuchC.astwicemuchrainD.twicerainasmuch答案：A2、Myglassescostme_thelostpairthatIbought.A.timesthreeB.threetimesmorethanC.threetimesasmuchasD.asmuchthreetimesas答案：C3、Doyouregretpayingfiftydollarsforthedog?-No,Iwouldgladlyhavepaid_forhim.A.asmuchtwiceB.twicesomuchC.muchtwiceD.twiceasmuch答案：D4、Nowthecityis_itusedtobe.A.threetimesaslargeasB.threetimelargeras答案：A8、Hewouldmuchratherkeeptimeforhishobbies.他宁愿为自己的爱好留点时间。had/wouldrather宁愿Idratherstayhereacoupleofdays.我想在这儿再呆几天。Ihadratheryoutoldthetruth.我宁愿的说实话。had/wouldrather表示“宁愿”时后面跟动词原形；如果后面跟从句，从句谓语要用虚拟语气，即过去式。1、I_playfootballthanbasketball.A.wouldratherB.hadbetterC.likebetterD.prefer答案：A2、Heinsistedonstaying_backhome.A.ratherthangoingB.ratherthangoC.thangoingD.ratherthantogo答案：A3、ShallItellthemthenews?No,Iwouldratherthey_know.A.wontB.dontC.wouldntD.didnt答案：D4、Idgotohell_staywithyou.A.thanB.ratherC.ratherthanD.betterthan答案：C5、Infact,MarywouldratherhaveleftforSanFrancisco_inLosAngeles.A.bystayingB.thatstayC.thanhavestayedD.tostay答案：C9、DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.袁博士从梦中醒来，希望能种植一种可以养活更多人的水稻。withthehopeof抱着的希望TheywenttosouthPacificwiththehopeoffindingsomenewplants.他们去南太平洋希望找到一些新植物。Withthehopeofrecovery,shetriedtolivehappily.抱着康复的希望，她尽量愉快的生活。inthehopeof希望能Wegotupearlyinthemorninginthehopeofcatchingthefirstbus.我们早早起床，希望能赶上第一班车。特别提示：“withthehopeof抱着的希望”一般表示客观希望；而inthehopeof一般表示主观希望。