欢迎来到天天文库
浏览记录
ID:18468190
大小:79.50 KB
页数:10页
时间:2018-09-18
《第三册读写课程阅读训练》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、第三册读写课程阅读训练考试时间:150分钟满分:100分ReadingComprehension(Eachitem:2)Directions:Readthefollowingpassage(s)carefullyanddothemultiple-choicequestions.Questions1to5arebasedonthesamepassageordialog.Inthesummerof1978anEnglishfarmernamedIanStevenswasdrivinghistractorthroughafield
2、ofwheatwhenhediscoveredsomethingstrange.Someofhiswheatwaslyingflatontheground.Theflattened(被压平的)wheatformedacircleaboutsixmetersacross.Aroundthiscirclewerefoursmallercirclesofflattenedwheat.Inthefollowingyearsmoreandmoresimilarcircleswerefoundinafieldofwheatorcorn.
3、Sopeoplecannothelpbutaskthequestion:Whatcausesthecircles?Atfirst,peoplesuspectedthatthecircleswereatrick.Toprovethatthecircleswereatrick,peopletriedtocopythem:theytriedtomakecirclesexactlyliketheonesthefarmershadfound.Theycouldn’tdoit.Theycouldn'tenterafieldofgrain
4、withoutleavingtracks,andtheycouldn’tflattenthegrainwithoutbreakingit.Thecirclesareapparentlynotatrick.Manypeoplebelievethatbeingsfromouterspacearemakingthecircles.Somethinkthatthebeingsaretryingtocommunicatewithusfromfarawayandthatthecirclesaremessagesfromthem.Othe
5、rsbelievethatthebeingshaveactuallylandedonearthandthatthecirclesaremarksleftbytheirspaceships.Severaltimespeoplereportedseeingstrangeflyingobjectsnearfieldswherecircleslaterappeared.Scientistssaythey’renotsurewhatcausesthem.Theyhavesuggestedseveraltheories.Forexamp
6、le,somescientistssaythat“microbursts”ofwindcreatedthecircles.Amicroburstisadownwardrushofcoolair¾thesamedownwardrushofairthatsometimescausesanairplanetocrash.Othersscientistssaythatforceswithintheearthcausethecirclestoappear.Butcirclesoftenappearinforms.Itishardtob
7、elievethatanynaturalforcecouldcreatethoseforms.Andrecentlyfarmershavediscoverednotonlycirclesbutalsoothershapessuchastrianglesintheirfields.Couldanynaturalforcecreatedaperfecttriangleinafieldofgrain?Inthesummerof1990somescientistsspentthreeweeksinthepartofEnglandwh
8、eremanycircleshaveappeared.Theyhadallthelatesthigh-techequipment.Thisequipment¾worth1.8milliondollars¾recordednothing.Butonenight,asthescientists
此文档下载收益归作者所有