练习50短文改错＋七选五＋完形填空Ⅰ.短文改错2022·全国甲卷★★★☆☆MyfatheroftentookmetohishospitalwhenIwasoffmyschool.Heshowedmehowhismedicalinstrumentswasused.Ifeltsocloselytohim.However,afterIwenttohighschool,somehowIbecomedistantfromhim.Iwasunwillingtalkwithhimandoftendisobeyedhisruleofnotstayoutwithmyfriendstoolate.ThedisagreementwastoosharpthatneitherhenorIknewwhattosettleit.Oneday,hetalkedwithmeorhopedtomendourrelations.Withtheeffortsmadebyallsides,webegantounderstandeachotherbetter.Ⅱ.七选五2021·浙江卷1月说明文326词★★★☆☆Yourunintothegrocerystoretopickuponebottleofwater.Yougetwhatyouneed,headtothefront,andchoosethelinethatlooksfastest.Youchosewrong.Peoplewhoyousweargotinotherlineslongafteryouarealreadycheckedoutandofftotheparkinglot.__1__Itturnsout,it'sjustmathworkingagainstyou;chancesare,theotherlinereallyisfaster.Grocerystorestrytohaveenoughemployeesatcheckouttogetalltheircustomersthroughwithminimumdelay.__2__Anysmallinterruption—apricecheck,achattycustomer—canhavedownstreameffects,holdingupanentireline.Iftherearethreelinesinthestore,delayswillhappenrandomlyatdifferentregisters.Thinkabouttheprobability:__3__Soit'snotjustinyourmind:Anotherlineprobablyismovingfaster.Researchershaveagoodwaytodealwiththisproblem.Makeallcustomersstandinonelong,snakingline—calledaserpentineline—andserveeachpersonatthefrontwiththenextavailableregister.__4__Thisiswhattheydoatmostbanksandfastfoodrestaurants.Withaserpentineline,alongdelayatoneregisterwon'tunfairlypunishthepeoplewholinedupbehindit.Instead,itwillslowdowneveryonealittlebitbutspeedupcheckoutoverall.__5__Ittakesmanyregisterstokeeponelinemovingquickly,andsomestorescan'taffordthespaceormanpower.Sowhereveryournextwaitmaybe:Goodluck.A．Whydoesthisalwaysseemtohappentoyou?B．Sowhydon'tmostplacesencourageserpentinelines?C．Someofthemmayhavestoodinaqueueforalmostanhour.D．Thechancesofyourlinebeingthefastestareonlyoneinthree.E．Howhighistheprobabilitythatyouareinthefastestwaitingline?F．Withthreeregisters,thismethodis...
