河北省邯郸市大名一中2018_2019学年高二英语下学期第13周周测试题

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1、河北省邯郸市大名一中2018-2019学年高二英语下学期第13周周测试题（无答案）第一部分：（共两节，满分40分）第一节：阅读理解(共15小题，每小题2分，满分30分）阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题卡上将该项涂黑。AAreyouhappywithyourteeth?Becca，a15yearoldgirlfromtheUSisnot.Shedecidedherteethneededtobewhiter.Inthelastfiveyears，teethwhiteni

2、nghasbecomeverypopularamongyoungAmericans.NowthetrendhascometoChina.IfyouturnontheTVyoucanseetheHongKongpopstarKarenMokshowingherbrightwhiteteeth，saying，“Wanttobelikeme?Usewhiteteethstrips(牙贴)！”Youmayevenhavedecidedtobuyone.Butwaitaminute.Dentistshavesomethi

3、ngtosay.Theythinkthatkidsshouldnotusewhiteningproductsuntiltheyare16orevenolder.“Wedon'tknowwhatwillhappenyet，”saysDrNasrinAzim，adentistinChicago.“Studieshavenotbeendoneonyoungpeople.Iwouldn'tdoteethwhiteningonanyoneunder18.”Theproblemwithwhiteningliesinthep

4、ulp(牙髓)，theinnermostpartofthetooth.Ithasthetooth'snerve(神经)ending.Whenweeatveryhotorcoldthings，it'sthepulpthathurts.Kidshavelargerpulps.Thelargerpulpmightmaketeethmoresensitivetowhiteningandgethurt.Anotherproblemisthatthegums(牙龈)aroundtheteethusuallychangesh

5、apewithage.So，ifsomeonewhitenshisorherteethduringchildhood，thedarker，naturalcolourmightshowlateraroundthegumline.Atthattime，yourteethwillshowtwocolours.Andthedarkercolourisdifficulttowhiten.So，waitanotherfewyearsbeforeyoumakeyourteethwhiter.Orifyoureallywant

6、todoit，askyourdentist.They'llgiveyouusefuladvice.1．Thispassagemainlytalksabout____.A．howtowhitenyourteethB．thenewtrendofwhiteningteethC．AmericanswithwhiteteethD．dentists'adviceontoothwhitening2．Whenweeathotorcoldfood，thepulphurtsbecause____.A．itisinsidethete

7、ethB．itissickC．itisrichinnervesD．itisnotusedtothiskindoffood3．Whatmayhappenifchildrendotoothwhiteningaccordingtodentists?A．Theirteethmayshowtwocolorslater.B．Theirgumsmaychangeshapewithage.C．Theirteethmaygetdarker.D．Theymaylosetheirteeth.4．Wecaninferfromthepa

8、ssagethat____.A．dentistsliketheideaoftoothwhiteningverymuchB．moreandmorepeopleinChinawillgettheirteethwhitenedC．it'snecessaryforchildrentowhitentheirteethD．toothwhiteningwillcertainlybringgoodre