仁爱英语八年级上册Unit4Topic.ppt

Unit4Topic1,SectionC,2.howmanyanimalsarelivinginrainforests?livein+sp.居住在某地ShangHaiistheplacewhereJimlivesin.Ineedapentowritewith.4.whatcanwegetfromrainforests?5.whyarerainforestsimportanttous?beimportanttosb.Itsimportantforsb.todosth.Asweknow,waterisveryimportant_us.A.ofB.toC.onD.with,Rainforests,Rainforestsarethickforestsinthehotpartsoftheworld.Tvidesthforsb把某物提供给某人providesbwithsth为某人提供某物Weprovidedthem_food,buttheyprovidedsomeclothes_us.Awith;withBfor;forCwith;forDfor;with,Itrainsalotandthegroundisalwayswet.Itsalwaysdarkandhotinrainforests.Rainforestscover6%oftheearthssurface.cover.with.becoveredwith.,Rainforestscover6%oftheearthssurface.,sixpercent,Keypoints,数词%+,可数名词复数,可数名词单数/不可数名词,Eg:50%ofthestudentsinourclassareboys.70%oftheearthiswater.,therearelotsoftalltreesandotherdifferentkindofplants,thousandsandthousandsofanimalsliveinrainforests.Manyofthemliveinthetreesover30metersfromtheground.,thousandsofplants数千hundredsofanimals数百thousandsandthousandsof千千万万的表示不确定数时，hundred和thousand等词后不但要加s，而且还要用of构成固定词组表示确定数目时。要在hundred和thousand等词前加一个具体数字，但hundred和thousand等词后不要加s，不用of构成固定词组thousandsofplants（be）fivethousandplants（be）onearth=ontheearth在地球上whatontheearth究竟,Rainforestsareveryimportanttous.Theyarethelungsoftheearth.Theplantsintheforestshelptomaketheairfresherandcleaner.Theyalsohelptoholdthewaterwhenitrainsandkeepthewatercycling.,Theyplayanimportantpartincontrollingtheclimate.playanimportantpartinsth在某事上扮演着重要的角色=playanimportantpartindoingsthcontrolcontrolledcontrolling,Rainforestsalsohelptokeepthebeautyofnature.withoutrainforests,manybeautifulplantsandanimalswoulddieout.without引导的虚拟语气：表示动作或状态不是客观存在的事实，而是说话人的主观愿望、假设或推测等。IfIwereyou,IshouldstudyEnglish.如果我是你，我就学英语了。Mayyousucceed!祝您成功！dieoutdieof,与现在事实相反:从句:动词的过去式（be的过去式一般用were）主句:would/should/could/might+动词原形Ifmybrotherwerehere,everythingwouldbeallright.与过去事实相反:从句:had+过去分词主句:would/should/could/might+have+过去分词Ifyouhadtakenmyadvice，youwouldnt(couldnt)havefailedintheexam.与将来事实相反:从句:动词过去式，should+动词原形，主句:wereto+动词原形would/should/could/might+动词原形Ifitweretosnowthisevening,theywouldnotgoout.,rainforestsgiveuswood,food,fruit,medicine,andmanymoreusefulthings.wood木，木头，木材，木料不可数树林，林地可数多音节词的比较级more+多音节词常见的多音节词friendlyinterestingimportantdifferentdangerrouspopulardelicioususefulbeautiful,Weneedrainforestsformanyreasons.Butnow,rainforestsarebecomingsmallerandsmaller,soweshouldprotectthem.形容词的比较级+and+形容词的比较级越来越.biggerandbiggersmallerandsmallerstrongerandstrongermoreandmorepopulau/useful,Listento1aandcompletethetable.Thencheckwithyourpartner.,hot,wet,dark,hot,6%,surface,plants,animals,fresher,cleaner,hold,cycling,climate,nature,wood,food,medicine,1b,录音1a-P85,Therewere_animalsintheforestmanyyearsago.A.thousandofB.thousandsofC.threethousandofD.threethousandsofManyanimalsareindanger.Wemustdosomethingtop_them.,Theycouldntfind_toeat,andhadtoeattheleavesinthetree.AsomethingelseBelsesomethingCanythingelseDelseanything,Youcanwritelikethis:,Example:,Rainforestsareveryimportanttous.Itisnecessaryforustoprotectthemverywell.First,weshouldmakepeopleknowabouttheimportanceofprotectingthem.Thenaskpeoplenotto