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 It simportantforsb todosth Asweknow waterisveryimportant us A ofB toC onD with Rainforests Rainforestsarethickforestsinthehotpartsoftheworld Theyprovideplacestoliveforthousandsofplantsandanimalsfoundnowhereelseonearth providesthforsb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 It salwaysdarkandhotinrainforests Rainforestscover6 oftheearth ssurface cover with becoveredwith Rainforestscover6 oftheearth ssurface 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 youwouldn t couldn t 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 Theycouldn tfind toeat andhadtoeattheleavesinthetree AsomethingelseBelsesomethingCanythingelseDelseanything Youcanwritelikethis Example Rainforestsareveryimportanttous Itisnecessaryforustoprotectthemverywell First weshouldmakepeopleknowabouttheimportanceofprotectingthem Thenaskpeoplenottocutdownthetreeswithoutplans Forus weshoulddosomethingaspossibleaswecan Whenwehavemeals wemustn tusechopsticksforonlyonce Inthelife uselesspaperandbesurenottowasteit