Unit7TheSea你喜欢大海吗？阳光照耀下她妩媚多姿；狂风暴雨下她凶猛狂暴，除此以外你还了解大海的什么呢？Whenyoulookatthemapoftheworldyouwillfindthereismoreseathanland．Theseacoversthreequartersoftheworld．Theseaisalsoverydeepinsomeplaces．Itisnotdeepeverywhere．Somepartsoftheseaareveryshallow(浅的)．Butinsomeplacesthedepthoftheseaisverygreat．Thereisonespot，nearJapan，wheretheseaisnearly11kilometersdeep！Thehighestmountainintheworldisabout9kilometershigh．Ifthatmountainwereputintotheseaatthatplace，therewouldbe2kilometersofwateraboveit!Whatadeepplace!Ifyouhaveswuminthesea，youknowthatitissalty．Youcantastethesalt．Rivers，whichflow(流动)intothesea,carrysaltfromthelandintothesea．Somepartsoftheseaaresaltierthanotherparts．Thereisonesea，calledtheDeadSea，whichisverysalty．Itissosaltythatswimmerscannotsink！FishcannotliveintheDeadSea!Inmostpartsofthesea，thereareplentyoffishesandplants．Somelivenearthetopofthesea,otherslivedeepdown．Therearealsomillionsoftinylivingthingsthatfloat(漂浮)inthesea．Thesefloatingthingsaresosmallthatitishardtoseethem．Manyfishlivebyeatingthese．Theseacanbeverycold．Diverswhogodeepdownintheseaknowthis．Onthetopthewatermaybewarm．Whenthedivergoesdownwards，theseabecomescolderandcolder．SectionⅠWarmup&Lesson1—Comprehending1．signn．手势；符号2．underwateradj．在水下，供水下用的3．voyagen．航海；航空4．persuadevt．说服，劝服5．presentdayadj．当今的，现代的6．deedn．行为，行动7．participatevi．参加→participationn．参加8．evaluatevt．评估，评价→evaluationn．评估9．arrangevt．安排，准备→arrangementn．安排10．huntv．打猎，猎杀→huntern．猎人11．frighteningadj．令人惊恐的，骇人的→frightenvt．使惊恐→frightenedadj．惊恐的12．explorern．探险家→explorevt．探险13．unknownadj．不知道的，未知的→knownadj．已知的，闻名的14．eventuallyadv．最终，终于→eventualadj．最后的15．apologisevi．道歉→apologyn．道歉1．fill__out填写2．set__sail启航3．according__to根据，依照4．get__into__trouble陷入麻烦，陷入困境5．make__it__to到达6．in__search__of寻找，寻求7．far__from远离8．prepare__for．．．为……作准备1．Thefirst．．．todo．．．TheVikingswerethefirstEuropeansto__reach__America(到达美洲的)．2．where引导的定语从句Byaround900AD，thereweremanyplacesinNorthernEuropewhere__the__Vikings__chose__to__live(有北欧海盗选择居住在那里)．3．现在分词作后置定语．．．therewereasmanyas10，000Vikings__living__in__Iceland(生活在冰岛上)．4．find＋n．/pron．＋介词短语BiarniwashopingtojoinhisfatherwhowaswithEric，buthewasblownoffcourseand__found__himself__in__an__unknown__land(发现自己在一个未知的地方)，fromwhereheeventuallyreachedGreenland．5．what引导的名词性从句LeiffollowedBiarni’sdirectionsandsailedtowhat__is__believed__to__be(被认为是)thecoastofpresentdayCanada．Readthetextcarefullyandchoosethebestansweraccordingtothetext．1．Thetextmainlytalksabout________．A．howtheVikingsarrivedinAmericaB．howEuropeanssettledinAmericaC．Columbus’firstdiscoveryofAmericaD．thelifestoryofErictheRed2．WhichofthefollowingisTRUEaboutErictheRed?A．HewaswelcomedbackafterfindingGreenland．B．HetalkedsomepeopleintogoingtoIceland．C．AviolentcrimewasthemainreasonforhisleavingIceland．D．ThestoryofErictheRedwashandeddownbymouth．3．Thetextismainlywrittento________．A．offerinformationB．arguewithothersC．persuadereadersD．proveatheory4．WhowerethefirstEuropeanstoreachAmerica?A．Columbusandhissailors．B．Mag...
