Unit6
Thepowerofplants;通过阅读,了解植物光合作用的过程,意识到植物是自然界的“生产者”,对自然界有不可替代的作用。
通过合作探索,了解拟人的写作手法和双关的修辞手法。
通过归纳法和演绎法,学习掌握一些高频词的意义和用法。;Whatcanyouseeinthepicture?
Doyouknowthenamesofitsparts?;Whatdoyouseeinthepicture?Accordingtothetitleandpicture,whatisthepictureabout?Whatdoesplantmean?;water;water;Whataretheworkersgoingtoproduce?;;Apun(双关语)isawordwithmorethanonemeaning.It’sacleverwaytomakethepassagemoreinteresting.;英语中最常见的双关是同音双关和多义双关。
同音双关:利用读音相同或相近但意义不同的词语表达不同语意。
例如:Abicyclecantstandonitsownbecauseitistwo-tyred.(two-tyred是tootired的同音双关)
多义双关:利用一个词的多重含义表达不同语意。
例如:Brokenpencilsarepointless.
(pointless有“无用的”和“没有尖头的”双重含义);1)Themathematician(数学家)’splantsstoppedgrowing.Hefoundtheydidn’thaveenoughsquareroots.
2)Iusedtoplaypianobyear,butnowIusemyhands.
;3)Iusedtobealibrarian,butIwasinthewrongbook!
4)Whywasthemathbooksad?Becauseithadtoomanyproblems!;Readagainandanswerthefollowingquestion:;aHowtomakesugar
bHowplantswork
cWhyplantsaregreat
dGoingtothegreatworkshop;Readagainforthestructureofthepassage.;Completethetextswiththewordsandexpressionsfromthepassage.;Whatdothepronounsreferto?;Learningtothink;WorkerNo.55startshisjobataplantat________pastseven.HeworksintheLeafwithabout20to100otherworkers.They_________sunlightandcarbondioxideduringtheday.
WaterfromtheRoottravelsupthroughtheStemtotheLeaf,and_________withsunlightandCO2.It_________sugarandoxygen.Thesugarhelpstheplantgrow(生长),andtheoxygenisimportantforanimalsandhumansto_________.Asnightfalls,theworkersgetreadyto_________.
Thenaturalworldwouldbeverydifferent_________plants.;plant,sunlight,carbondioxide,water,root,stem,leaf,collect,produce,mix,sugar,oxygen,animalsandhumans,without;Inwhatotherwaysdoplantshelpthe