2020版高中英语Module5ALessoninaLabSectionⅢGrammar练习外研版必修1.docx

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1、SectionⅢ　Grammar能力提升Ⅰ.阅读理解AScienceexperimentsareafunwayforkidstolearnallaboutscience.Iwillintroduceafewgreatexperimentsandteachyourchildallaboutthewondersofinertia(惯性)．CoinShootYou'llneedsomecoins,atleasteleven,andasmoothtable.Stack(堆叠)allbutoneofthecoin

2、sonthesmoothtable,makingsurethatthe“highrise”isstraight.Coinswithwideedgesmakethisexperimenteasytodo.Flick(弹)theextracoinquicklytowardsthebottomofthestacksothatithitsthebottomcoin.Thebottomcoinfromthestackshouldshootoutfromundertheothercoinswithoutchangi

3、ngtherestofthestack.Withgoodaimandquickflicksofyourfinger,youshouldbeabletoshootallofthecoinsoutofthestackonebyone.Becausetheinertiaofthestackofcoinsissogreat,theforcefromtheflickedcoinisnotenoughtomaketheentirestackmoveorfalldown.ThePencilStandingPlacea

4、narrowpieceofpaperonasmoothtable.Holdthepapersothatmostofithangsoffthetable.Placeapencilonthepapersothatitisstandingstraight.Now,slowlytrytopullthepaperoutfromunderthepencil.Whathappens?Setupthepaperandpencilagain,andgivethepaperafastpull.Whathappenstoth

5、epencilthistime?Sincethestillpencilwantstostayatrest,itwillbeagainstthefastmovementofthepaper.Thismeansthatwhenthepaperismovedquicklyoutfromunderthepencil,thepencilremainsstandingstraight.Ifthepaperismovedslowly,themovementhasachancetoinfluencethepencil,

6、anditwillfalldown.【语篇解读】　科学实验能够帮你直观地探索科学奥秘。本文教你如何了解惯性的存在。1．Whichofthefollowingisusedinbothofthetwoexperiments?A．Anarrowpieceofpaper.B．Anumberofcoins.C．Asmoothtable.D．Anewpencil.解析：选C　细节理解题。由第二段第一句和第三段第一句可知，两个实验中都用到了asmoothtable。2．Whatresultcanwegetifwedo

7、thefirstexperimentwell?A．Thestackofcoinsfalldownonthetable.B．Thebottomcoinisflickedoutofthestack.C．Allofthecoinsaretakenawayfromthetable.D．Allofthecoinsareshotoutofthestackonebyone.解析：选D　细节理解题。根据第二段倒数第二句可知，如果将这个实验做好，摞起来的硬币会一枚一枚地被击出。3．Mostofthepaperhangso

8、ffthetablesothat________.A．wecanpullitquicklyB．wecantakeholdofitC．itcaninfluencethepencilD．thepencilcanstandstraight解析：选A　推理判断题。根据第三段倒数第二句“Setupthepaperandpencilagain，andgivethepaperafastpull.”可推知，这样放纸条是为了能够迅速地抽出纸条，故答案为A项。