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