小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com选择性必修第四册Unit4NevertoooldtolearnⅠ.阅读理解AThefirstessayIwroteformyhistoryofEnglishclasswasperfect，atleastfrommyperspective.Ihadworkedonitconstantlyandcouldn’twaittogetmygradeback.Ihandeditinwithpride.Twoweekslater，Ireceivedmygrade：aD．Thepageswerecoveredinredwriting，pointingouterrors.Theremusthavebeenamistake.Universitystartedlaterformethanmost.Theopportunitywasn’tavailablewhenIwasyounger—toomanykidsinourfamilyandtoolittlemoney.ButIneverstoppedwonderingwhatuniversitywouldhavebeenlike.Iwasinmy40swhenIsentinmyapplicationandasapart-timestudent，Iwillbeinmy60sbeforeI’mfinished.That’smygoal.What’sitliketobetheoldguyinaclassfullof20-year-olds?It’sstrange.Theyprettymuchignoredme，andIignoredthem.Theyalsoignoredeachother.However，afterwehadmoregroupworktogether，peoplestartedtocommunicate.AlthoughIwasanEnglishmajor，someofmyfavoriteclasseswereunrelatedelectives.CoursesinarthistoryandGreekandRomanhistorywerefascinating.Iwaseagertodowell.Iarrangedameetingtodiscussmyessaygradeandarrived10minutesearlytomeettheteacher’sassistant.Iwasreadytoargueforthebrillianceofmypaper.However，shequicklyexplainedtomethatthepaperfailedtomakeastrongargument.Themarkremained.WhileIkeptstudyingandkeptlearning，IlearnedtolovetwodozenwritersIhadneverheardofbeforeandexploredtypesofliteratureIhadneverexamined.Eventually，Ilearnedhowtowriteanessayinproperacademicprose.Universityisdifferentwhenyouareasenior，part-timestudent.Ifyouaretheretoestablishacareerorbecauseyourparentsforceyoutogo，thereareotherpressures.Forme，it’sjustlearning.WhetherI’mlearningremotelyorinperson，itmakestheworldabigger，richerplace.1．Howdidthewriterfeelafterreceivingthegradeofhisfirstessay?A．Hopeless.B．Pleased.C．Excited.D．Surprised.2．Whydidthewriterstartuniversitylaterthanothers?A．Hisapplicationwasrefused.B．Histeacherdislikedhisessay.C．Hishealthdidnotmeetthestandard.小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comD．Hisfamilywasnotrichenough.3．Whathelpedthewriterinwritingaproperacademicessay?A．Strongcuriosity.B．Constantefforts.C．Greatpressure.D．Remarkablecreativity.4．Whichwouldbethebesttitleforthepassage?A．PracticeMakesPerfectB．NotAllThatShinesIsGoldC．WhereThereIsaWill，ThereIsaWayD．ActionSpeaksLouderThanWordsBSciencefictionhasalwaysbeenthesourceofallsortsofwonderfulideasaboutwhatlifemightbelikeinyearstocome.Writers，film-makersandvideogamedesignershaveallturnedtheirimaginationstotheeffectstechnologymighthaveonourfuture.Nowitseemslikewe’refinallycatchingupwithsomeofthesefuturisticideasthankstonanotechnology.Nanosciencefocusesonthestudyoftinymolecules—onlyonebillionthofameterinsize.Foryears，nanosciencehasexploredwaysofapplyingthisresearchtodifferenttypesoftechnology，andrecentlyithasbeguntoengendermoreandmorediverseandfascinatingdevelopments.Imagineasubstancewiththeabilitytohealanywoundalmostimmediately.Thisisacommonfeatureinvideogames：whencharacterssufferinjuries，agel(凝胶)isappliedwhichhealsthemandprolongs(延长)theirlives.Notlongago，itseemedimpossibletorecreatethisinreallife.Butnow，byextractingpolysaccharidepolymers(多糖聚合物)fromthecellwallsofplants...