高中英语外研版必修1学业分层测评15含解析

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1、学业分层测评（十五）I•完成句子1.在这个学校里，男生人数是女生的三倍。Inthisschooh•2.我们的国家正变得越来越强人。Ourcountryis・3.今天很热，天气预报说明天会更热。Todayishot:.Theweatherreportsaystomorrow.4.你解释的越多，我发现它就越容易理解。,theeasierIfoundittounderstand・5.简是两个女孩中较细心的。Janeisofthetwogirls.【答案】1.therearethreetimesasman

2、yboysasgirls2.gettingstrongerandstronger3.itwillbeevenhotter4.Themoreyouexplained5•themorecarefulII•阅读理解AScienceexperimentsareafunwayforkidstolearnallaboutscience.Iwillintroduceafewgreatexperimentsandteachyourchildallaboutthewondersofinertia（惯性）.CoinS

3、hootYoullneedsomecoins,atleasteleven,andasmoothtable.Stack（堆叠）allbutoneofthecoinsonthesmoothtable,makingsurethatthe"highrise”isstraight.Coinswithwideedgesmakethisexperimenteasytodo.Flick（弹）theextracoinquicklytowardsthebottomofthestacksothatithitsthebo

4、ttomcoin.Thebottomcoinfromthestackshouldshootoutfromundertheothercoinswithoutchangingtherestofthestack.Withgoodaimandquickflicksofyourfinger,youshouldbeabletoshootallofthecoinsoutofthestackonebyone.Becausetheinertiaofthestackofcoinsissogreat,theforcef

5、romtheflickedcoinisnotenoughtomaketheentirestackmoveorfalldown.ThePencilStandingPlaceanarrowpieceofpaperonasmoothtable.Holdthepapersothatmostofithangsoffthetable.Placeapencilonthepapersothatitisstandingstraight.Now,slowlytrytopullthepaperoutfromundert

6、hepenciLWhathappens?Setupthepaperandpencilagain,andgivethepaperafastpull.Whathappenstothepencilthistime?Sincethestillpencilwantstostayatrest,itwillbeagainstthefastmovementofthepaper.Thismeansthatwhenthepaperismovedquicklyoutfromunderthepencil,thepenci

7、lremainsstandingstraight.Ifthepaperismovedslowly,themovementhasachancetoinfluencethepencil,anditwillfalldown.1•Whichofthefollowingisusedinbothofthetwoexperiments?A.Anarrowpieceofpaper.B•Anumberofcoins.C.Asmoothtable.D.Anewpencil.【解析】细节理解题。由第二段第一句和第三段第

8、一句可知，两个实验中都用到了asmoothtableo【答案】C2.Whatdoweknowaboutstackingthecoins?A.Atleastelevencoinsareneededbutoneisn'tstacked.B•Themorecoinsintheexperiment,thebetter.C.Allthecoinsshouldbestackedstraight.D.Ninecoinsarestackedbuttwoareno匸【解析】细节理解题。根据第二段前两