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时间:2020-06-29
《九年级英语全册《Unit 5 Look into Science》Lesson 26 Keep the Candle Burning学案 (新版)冀教版.doc》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Lesson26:KeeptheCandleBurningI.Learningaims:Masterthenewwords:holder,shallow,lighter,match,examine,oxygenII.Learningimportantanddifficultpoints:1)Letthecandleburnfortwoorthreeminutes.2)Whenthecandlestopsburning,ithasusedupalltheoxygenintheair.3)Howfardoesitrise?4)
2、Becauseaboutonefifthoftheairismadeupofoxygen,thewaterrisesandfillsaboutonefifthofthejar.LanguagePoints:词汇详解1.Whenthecandlestopsburning,ithasusedupalltheoxygenintheair.当蜡烛停止燃烧时,它就用完了空气中所有的氧气了。【用法】useup意思是“用完、用光”,这是“动词+副词”短语。这类短语用名词作宾语时,名词可用在副词前,也可用在副词后;用代词作宾语时,代词则必
3、须用在副词前。【举例】IgaveLiMingalotofpencils,buthehasusedthemupalready.我给了李明很多铅笔,但他已经把它们都用完了。2.Becauseaboutonefifthoftheairismadeupofoxygen,thewaterrisesandfillsaboutonefifthofthejar.因为组成空气的成分大约五分之一是氧气,所以水会上升并且填充瓶子的大约五分之一。【用法】短语bemadeupof意为“由……组成”,后加名词或代词作介词宾语。【举例】Thisgrad
4、eismadeupoftenclasses.这个年级是由十个班组成的。【用法】句中的one-fifth意思是“五分之一”,这是一个分数。分数的表达一般遵循以下规则:分子用基数词,分母用序数词;当分子大于一时,分母要用复数形式;并且其中的连字符号有时可以不要。【举例】one-fourth四分之一threefifths五分之三Evaluationfeedback(测评反馈)I.从方框中选择适当的动词并用其适当形式填空。makelightwatchputburn1.Danny____________thecandlesandth
5、enblewthemout.2.Lookatthefire.Ithaskept____________forthreehours.3.ZhangHong____________thecandlesinthecandleholderandsatdown.4._______________theobservation,Mr.Wangisworkingharddayandnight.5._______________carefullyandyou’llfindthedifferencesbetweenthetwopainting
6、s.II.根据句意和所给的首字母提示用适当的词语填空。1.IlikescienceandIthinkitisveryi____________.2.Hecuttheappleintoh__________andletmechoose.3.IfIturnoffallthelightsinthedark.Whatwillh___________?4.Jenny,pleasefillthebottlef__________ofwater.5.Weares____________youwilllikethissubject.III
7、.按要求进行句式转换,每空一词。1.LetherhelpyouwithyourEnglish.(反意疑问句)LetherhelpyouwithyourEnglish,___________________?2.Thecandleispink.(对画线部分提问)____________________isthecandle?3.Thebagisfullofrice.(同义句)Thebagis__________________rice.4.Shelightedthecandlewithamatch.(一般疑问句)______
8、_____________________thecandlewithamatch?教学反思:
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