北师大版高中英语必修3 Unit 7《The sea》（Section Ⅰ）word教案.doc

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1、Unit7　TheseaSectionⅠ　Warmup&Lesson1你对大海了解多少？阳光照耀下她妩媚多姿；狂风暴雨下她凶猛狂暴，除此以外还有什么呢？Thefirstthingtorememberisthattheseaisverybig.Whenyoulookatthemapoftheworldyouwillfindthereismoreseathanland.Theseacoversthreequarters(四分之一)oftheworld.Theseaisalsoverydeepinsomeplaces.Itisnotdeepeverywhere.Somep

2、artsoftheseaareveryshallow.Butinsomeplacesthedepthoftheseaisverygreat.Thereisonespot，nearJapan，wheretheseaisnearly11kilometersdeep！Thehighestmountainintheworldisabout9kilometershigh.Ifthatmountainwereputintotheseaatthatplace，therewouldbe2kilometersofwateraboveit！Whatadeepplace!Ifyouhav

3、eswuminthesea，youknowthatitissalty.Youcantastethesalt.Rivers，whichflowintothesea，carrysaltfromthelandintothesea.Somepartsoftheseaaresaltierthanotherparts.Thereisonesea，calledtheDeadSea，whichisverysalty.Itissosaltythatswimmerscannotsink！FishcannotliveintheDeadSea!Inmostpartsofthesea，the

4、reareplentyoffishesandplants.Somelivenearthetopofthesea.Otherslivedeepdown.Therearealsomillionsoftinylivingthingsthatfloatinthesea.Thesefloatingthingsaresosmallthatitishardtoseethem.Manyfishlivebyeatingthese.Theseacanbeverycold.Diverswhogodeepdownintheseaknowthis.Onthetopthewatermaybew

5、arm.Whenthedivergoesdownwards，theseabecomescolderandcolder.Anotherthinghappens.Whenthedivergoesdeeper，thewaterabovepressesdownonhim.Itsqueezes(挤、压)him.Thenthediverhastowearclothesmadeofmetal.Buthecannotgoverydeep.Somepeoplewhowantedtogoverydeepusedaverystrongdivingship！Theywentdowntoth

6、edeepestpartoftheseainit.Theywentdowntoadepthofelevenkilometers!SectionⅠ　Warmup&Lesson1Ⅰ.重点单词1．____________(n.)　探险家2．____________(adj.)不知道的，未知的3．____________(adj.)令人惊恐的，骇人的4．____________(n.)水手，海员5．____________(vt.)说服，劝服6．voyage(n.)____________7．ancestor(n.)____________8．eventually(adv.

7、)____________9．journey(n.)____________10．apologise(vi.)____________答案：1.explorer　2.unknown　3.frightening　4.sailor　5.persuade　6.航海；航空　7.祖先，祖宗　8.最终，终于　9.旅行，旅程　10.道歉Ⅱ.重点短语1．discuss____________sb.和某人讨论2．set____________启航3．according____________根据，依照4．get____________trouble陷入麻烦；陷入困境5．retur