【培优练习】Unit2(英语人教必修五).docx

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1、Unit2TheUnitedKingdom培优练习本课时编写：庄浪二中程瑛瑛(时间：100分钟；满分：120分)一、阅读理解(共15小题；每小题2分，满分30分)AThebrainisaremarkablepart.It’sresponsibleforthoughtsandfeelings.Nowanewstudyfindsthatgoingthroughtoughtimesasakidalsocanhaveanimpact.Theadultbrainsofpeoplewholivedthroughlotsofstressbeforeth

2、eageofsix—andthenbecamedepressedoranxiousasteenagers—weredifferentcomparedwithadultswhohadaneasierchildhood.Itseemsthatteenschangedtheshapeoftheirbrainsbyinternalizing(使内在化)thestressesexperiencedyearsearlier.Researchersalreadyknewthattheshapeandsizeofachild’sbraincanchang

3、einresponsetolotsofstress.Theyalsoknewthatadultsweremorelikelytobedepressedif，askids，they'dlivedinpoverty.Somestudiesshowedthatthesedepressedadultshadunusualchangesintheirbrainshape.Butnoonehadtestediftheearlystressandlaterbrainchangeswerelinked.ScientistsinEnglandstudied

4、almost500boysfrombirthuntiltheagesof18to21.SarahJensenisoneofthenewstudy'sauthors.Almostalloftheboysherteamstudiedexperiencedsomehardtimesaskids.And,sheconcludes，“Thisisnotnecessarilyharmful.”Tosomeextent，that'sjustlife.Whatcanbedangerous，shesays，iswhenchildrenexperiencet

5、oomanyformsofdifficulties.Herteam’snewdatasuggestthatthetougherthechildhood，thestrongertheimpactonthebrainmightbe.What’shappeningintheworldaroundusrelatestohowwefeel.Herteamlinkedmorechildhoodstresstomoredepression.Still，shenotes，it’spossiblethatifyoufindsupportforanxiety

6、ordepression，youmightbeabletopreventthechangesseenhere.“Ifyoucanchangetheenvironment，youcanchangethecourseofthings，”Sarahsays.So，sherecommends，ifteensdevelopanxietyordepression，it’sgoodtoaskforpsychologicaldoctorstogiveadvice.1．Whenpeoplehadahardchildhood，A．theywillhaveab

7、raveattitudetolife．B．theirwayofthinkingmaybestrangeC．theywillbegoodatdealingwithstressD．theshapeoftheirbrainmaybechanged2．Whatisthebreakthroughofthenewresearch?A．Thesizeofthebraincanchange.B．Thebraincanbeinfluencedbystress.C．Povertycanaffectthebrain'sshapeinfuture.D．Chan

8、gesinbrainareconnectedwithearlierhardship.3．Its’aproblemwhenchildrenA．hadalonelychildhoodB．ledap