高中英语寒假作业阅读培优小卷：上海专用02 阅读培优小卷 (原卷版).pdfVIP

高一英语寒假作业阅读培优小卷

上海专用02

第一部分阅读理解（共两节，满分47.5分）

第一节（共15小题；每小题2.5分，满分37.5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。

A

（2022春·上海·高一复旦附中）

Itisthegreattragedyofshoelaces.Fromthemomenttheyaretied,theyaresuretobecomeuntied.

Thatistheconclusionofscientistswhohavestudiedtheshoelaceknot(结)andfoundthatitseemsalmost

uniquelyill-suitedtosurvivelongwalk.Instead,itwillalwayscomeundoneeventually,usuallysuddenlyand

unexpectedly.

Or,astheyputit,“thefailureoftheknothappensinamatterofseconds,oftenwithoutwarning,andis

disastrous.”Especiallysoifyoutripupafterwards.

OliverO’Reilly,fromtheUniversityofCalifornia,Berkeley,saidthattheresearchwasinspiredbypersonal

experience.“Myshoelaceshavealwayscomeuntied,”hesaid.Sowhenhewasteachinghisdaughterhowtotie

hershesoughtexpertadvice.“Ifoundwonderfulvideosshowingwhytheybecameuntied,whichstruckmeas

unusual.”

Hedecidedtocorrectthis.HegothisPhDstudentChristineGreggtorunonatreadmill(跑步机)untilher

lacescameundone,whilefilmingwithaslow-motioncamera.“Christinestartedrunningandwewerereally

surprised.Foralongtimenothinghappened,theneverythinghappenedreallyquickly—inafewsteps.”Hefound

therewasagradual,hidden,looseningwhichcamebeforeatotalcollapseoftheknot.

Totrytoestablishwhatwascausingthis,Christinetriedleg-swingingwhilesittingonatable,andheavysteps.

Neitherresultedintheshoelacescomingundone.Itrequiredbothtogether,evenwithalooselytiedknot.Next,for

hisresearchinProceedingsoftheRoyalSocietyA,ProfessorO’Reillyattachedinstrume