Unit1Theworldofoursenses人和动物之所以能够闻到、听到、尝到、看到、感觉到事物，是因为有感觉器官。What'sthatsmell？Doyouhearthatnoise？Tastethis！Lookatme！Feelthis，isn'titsoft？Whenyouhear，orevenusethesephrases，youprobablydon'tstoptothinkaboutwhyweusethem.Well，it'sbecauseofoursenses.Withoutusevenknowing，oursenseorgans(nose，eyes，ears，tongue，andskin)aretakingininformationandsendingittothebrainforprocessing.Ifwedidn'thavethem，wewouldnotbeabletosmell，see，hear，taste，ortouchanything!Sensesarethephysicalmeansbywhichalllivingthingssee，hear，smell，taste，andtouch.Eachsensecollectsinformationabouttheworldanddetectschangeswithinthebody.Bothpeopleandanimalsgetalloftheirknowledgefromtheirsenses，andthatiswhysensesaresoimportant.Allsensesdependontheworkingnervesystem.Oursenseorgansstarttoworkwhensomethingstimulatesspecialnervecells，calledreceptors，inasenseorgan.Oncestimulated，thereceptorssendnerveimpulsesalongsensorynervestothebrain.Yourbrainthentellsyouwhattodo.Forexample，yoursoundreceptorsareoftenattackedbybillionsofsoundwaves.Whenthesesignalsreachthepartofthebraincalledthecerebralcortex，webecomeconsciousofthesounds.[阅读障碍词]1．process处理2．nerve神经3．stimulate刺激，激发4．receptor感受器；受体5．nerveimpulse神经冲动6．thecerebralcortex大脑皮层7．becomeconsciousof意识到……[诱思导读]根据短文内容，回答下列问题1．Whataresenses?Sensesarethephysicalmeansbywhichalllivingthingssee，hear，smell，taste，andtouch.2．Howdooursenseorganswork?Whensomethingstimulatesreceptorsinasenseorgan，thereceptorssendnerveimpulsesalongsensorynervestothebrain.Yourbrainthentellsyouwhattodo.SectionⅠReading(Ⅰ)(Welcometotheunit&Reading)Ⅰ.匹配下列单词的词性及汉语意思()1.confuseA．vt.观察；注意到；评论()2.forecastB．vt.抓紧，抓牢()3.observeC．n.轻松，宽慰()4.narrowD．vi.犹豫，迟疑不决()5.approachE．adv.牢牢地，坚定地()6.hesitateF．vi.&vt.靠近；着手处理n．靠近；方法；路径()7.graspG．vt.使糊涂，使迷惑()8.anxiousH．adj.狭窄的()9.firmlyI．adj.焦虑，忧虑()10.reliefJ．vt.&n.预测，预报[答案]1－5GJAHF6－10DBIECⅡ.选择下列句中词组的汉语意思A．伸手B．轻松地，安慰C．盼望，企盼D．密切注意E．来帮助某人F．看得到，在视力范围之内1．Wehavetowatchoutforfasttrafficalonghere.2．Thelandcameinsightafterwehadsailedfortendays.3．Themonkeyreachedoutahandthroughthebarsandtookthebanana.4．Wehavehadeverythingwecanwishfor.5．Thesituationworkerssawherwasintroubleandcametoheraid.6．Thelittlegirlsmiledinreliefwhenshewastoldthatshehadpassedtheexam.[答案]1－6DFACEBFogbyBillLoweFogwarning①WhenPollylefthomethatmorning，thecitywasalreadycoveredinagreymist.Atlunch，theradioforecast②thatthemist(薄雾)wouldbecomeathickfog(雾)intheafternoon．Atfouro'clock，Pollyleftworkandsteppedoutintothefog.Shewondered③ifthebuseswouldstillberunning．雾比尔·洛浓雾警报那天早晨波莉离开家时，整个城市已笼罩在灰色的薄雾中。午餐时分，广播预报说，薄雾将会在下午变成浓雾。四点钟，波莉下了班，步入了浓雾中。她想知道公共汽车是否还会照常运行。[助读讲解]①when引导时间状语从句。②that引导宾语从句。③if引导宾语从句，此处的if意为“是否”。NobusestoKingStreet④Onceoutinthestreet，shewalkedquicklytowardsherusualbusstop.‘Howfarareyougoing？’thebusconductoraskedher⑤beforehetookherfare(车费)．‘KingStreet，’saidPolly.‘Sorry，Miss，’repliedtheman，‘thetruthis⑥thatitistoofoggyforthebustorunthatfar．TaketheUndergroundtoGreenPark.Theweathermightbebetterther...
