高一上册译林版英语必修第一册课时作业Unit4SectionⅡGrammarandusage&Integratedskills+Word版含答案.docx

课时作业(十一)　Unit4　SectionⅡ　Grammarandusage&Integratedskills
Ⅰ.阅读理解
A
What'syouropiniononspicyfood? Somepeoplecannothandleeventhesmallestamountofthechili(辣椒)intheirdinnerwhileotherscan'tgetenoughofit.
Scientistshavelongbeenpuzzledbywhysomepeoplelovechilieswhileothersloathethem.Plentyofresearchhasbeendoneonthesubject, datingasfarbackasthe1970s.Previousresultsshowedthataloveofchiliesisrelatedtochildhoodexperiences, andculturalinfluencesaffectourtastebuds, too.Butthelateststudyhasfoundthataperson'sloveofspicyfoodmaybelinkedtohisorherpersonalitymorethananythingelse, CBCNewsreported.
“Wehavealwaysassumedthatlikingdrivesintake—weeatwhatwelikeandwelikewhatweeat.Butnoonehasactuallydirectlybotheredtoconnectthesepersonalitytraits(特点)withtheintakeofchilipeppers，”saidProfessorJohnHayesfromPennsylvaniaStateUniversity, wholedthestudy.
Butbeforeyoulookatthestudy, youshouldfirstknowthat“spicy”isnotataste, unlikesour, sweet, bitterandsalty.Itis, infact, aburningsensationthatyoufeelonthesurfaceofyourtongue.Thisgotscientiststhinkingthatmaybealoveofspicyfoodisbroughtaboutbypeople'slongingforthrills, somethingtheyusuallygetfromwatchingactionmoviesorridingarollercoaster.
Inthestudy, 97participants, bothmaleandfemale, wereaskedtofilloutquestionnairesaboutcertaintraitsoftheirpersonalities, forexample, whethertheylikenewexperiencesortendtoavoidrisks.Theywerethengivencupsofwaterwithcapsaicin, theplan