仁爱版八年级上册unit4 topic1 sectionC课件

仁爱版8年级上Unit4Topic1SectionC Unit4OurWorldTopic1Plantsandanimalsareimportanttous SectionC Teachingaimsanddemands 1 1 Learnsomewordsaboutrainforests cover surface meter dark forest control wood rubber protect 2 Learnsomeotherwordsandexpressions fact infact makeup large lake sea ocean drop indanger 3 Learnsomeusefulexpressions thousandsandthousandsofbeveryimportanttobenecessaryfor can tlivewithout saveeverydropofwater Reviewcomparativeandsuperlativedegreesofadjectives 1 Theplantsintheforestshelptomaketheairfresher 2 Butnowrainforestsarebecomingsmallerandsmaller 3 Watermakesupthelargestpartofthehumanbody 3 Describenatureresourceandrealizetheimportanceofenvironmentprotection 1 Theyalsohelptocontroltheweather 2 Therainforestsgiveuswood rubber fruit medicineandsoon 3 Itisimportanttoalllivingthings 81 81 T F F F T 82 82 Workalone Wateris toalllivingthings All and needwater water therecanbenolifeonearth alsoneedwatertodrink tocookand Sowemustsavewater important plants animals Without Humans toclean 82 rainforests lungs rubber fruit fewer losing 课堂讲解 1 Rainforestscover6 oftheearth ssurface 热带雨林覆盖地球表面的百分之六 百分数的读法 先读基数词 再读百分号 percent 6 读作 sixpercentcover覆盖Watercoversmostpartsoftheearth 2 Thousandsandthousandsofanimalsliveinrainforests 千千万万的动物生活在热带雨林 当hundred thousand million billion等表示不确定的数目 表示一个大概的数量 常用复数形式 后面跟介词of 意思为 数以百计的 成千上万的 数百万计的 几十亿的 当这些词与具体数字连用时不用复数形式 Fivehundred sixthousand 3 Manyofthemliveinthetreesover30metersfromtheground Over morethan多于 超过的意思 Morethan Over100studentsareplantingtrees Lessthan少于 不超过TheylivedinShanghailessthanayear 4 Infact watermakesupthelargestpartofthegumanbody Makeup形成 组成 构成 Girlstudentsmakeuponly40 ofallthestudents 5 Wemustsaveeverydropofwater Drop名词 滴Adropofwater还可以当动词 掉下 放弃Abottledroppedontothefloor 课堂练习 1 Five peoplearewaitingforbus A HundredofB hundredsC hundredD hundredsof2 Ican whenIwasfiveyearsold A MakeabedB makethebedC MakebedD makethebeds3 Weshouldpretectwildanimals A WellB goodC muchD many C B A 4 Thenumberofwildanimalsarebecoming thanbefore A Muchm