2019高中英语unit9wheels课时跟踪练（一）warm_up

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1、课时跟踪练(一)Warm-up&Lesson1—Pre-readingⅠ.阅读理解AZipped(用拉链拉上或扣上)intoabag,itlookslikealargeumbrella.Unfolded,itgoesalongthestreetlikeanyotherbicycle.It'sthe“Abike”，thebrainchild(脑力劳动的产物)ofBritishinventorSirCliveSinclair,whomadehistoryinthe1970sbydevelopingtheworld'sfirstpocketcalculator.Hed

2、escribedhisnewinventionas“theworld'ssmallest,lightestfoldablebicycle”．“Myoriginalthoughtwasthatifyoucouldhaveabicyclethatwasdramaticallylighterandmorefirmthantheonesthatexisttoday,itwouldchangethewayinwhichbicyclesareused，”saidSinclair.Theminibike,showedinSingaporelastweekandsettogoo

3、nsaleworldwideatapriceofnearly$300,isbuiltforridersasheavyas112kilogramsandisheightadjustable(可调整高度的).Ittakesabout20secondstofoldorunfold.Itswheelsareaquarterthesizeofthoseonaregularbicycle,butSinclairpromisesasmoothrideformostcyclists.“Yourequirenoextraenergytoridethe‘Abike’anditcan

4、goupto15milesperhour(24kilometresperhour)，”hesaid.Constructedmainlyofplastic,the5.5kilogrambicyclefoldsintoapackageoflessthan0.03cubicmetres.SinclairalsoinventedthefirstpocketTVin1984andthefuturisticC5electrictricyclein1985.Hesaidhehopedthebicyclewouldattractcommoncitizens,officials,

5、campersoranyoneneedingtransportforashorttripandhesaidthenextstepforthe“Abike”wastoaddanelectricmotorinafewyears.语篇解读：普通的自行车人人都见过，可是你见过折叠以后像伞一样的自行车吗？现在有人发明了这种自行车。1．Themostimportantcharacterofthiskindofbicycleisits________.A．bigsize　　　　　　B．lightweightC．beautifulappearanceD．foldablestru

6、cture解析：选D　细节理解题。由文章第二段中“Hedescribedhisnewinventionas‘theworld'ssmallest,lightestfoldablebicycle’．”可知答案。2．Thewheelsofaregularbicycleare________thesizeofthiskindofbicycle.A．fourtimesB．threetimesC．onefourthD．onethird解析：选A　细节理解题。由第五段开头可知，传统自行车车轮大小是这种新型自行车车轮的四倍。3．Whichwouldbethebesttitle

7、ofthepassage?A．World'sSmallestFoldableBicycleArrivingB．ANewBicycle,aLargeUmbrellaC．AFoldableBicycle,aLargeBagD．AGreatInventorofaNewBicycle解析：选A　标题归纳题。本文自始至终都在介绍一种即将上市的新型折叠式自行车的与众不同之处。因此以A项为题目既高度概括又醒目。4．What'sthemeaningoftheunderlinedwordinParagraph5?A．Attracted.B．Contained.C．Invented

8、.D．Made.解析：选