义务教育高中英语导学案与练习选修七unit3 under the sea period 7

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1、Period7　ListeningTask，TalkingandWritingTeachingaims　　　　　1．Studentswillbeabletofindoutthereasonswhythepopulationofsharksdecreasessharply.2．Studentswillbeabletoexpressopinionswiththepoliteexpressionslike：Idon'tthinkitiswiseto...Itwouldbebetterifwe...Itis

2、agoodideato...Isupposeitisright...Iwonderif...3．Studentswillbeabletopersuadethelocalgovernmenttoprotectwildlifeinapoliteway.Teachingprocedures　　　　　Step1　BeforelisteningShowstudentsapictureofsharkandtellthemafactthatsharkpopulationsaredecreasingrapidly

3、.Step2　DuringlisteningTask1：TellstudentsJordonDaviesisinterviewingthesharkexpertDonJamesaboutthesharks'situation.Firstreadthestatementsbelow.Thenlistenandnumberthesestatementsintheorderthattheyhearthem.□Sharkpopulationsgrowataveryslowrate.□Alotarekill

4、edbecauseofmodernfishingtechnology.□Governmentsshouldtakeactionsothatthefishingofsharksissloweddown.□Sharkattacksgetalotofattentioninthenews.□Sharkpopulationsaredecreasingataseriousrate.□Somespeciesneedtobeprotected.□Thechanceofbeingbittenbyasharkisact

5、uallyverysmall.□Millionsofsharksarekilledeachyear.Keys：theorder：74815623Task2：Listenagainandanswerthefollowingquestions：1．Shouldpeoplebeafraidofswimminginthesea?2．Howmanypeoplearekilledbysharkseachyear?3．Dosharksorpeopleneedtobeprotected？Why?4．Whyareso

6、manysharksbeingkilled?5．Whydoestheshark'sbiologyaffectsharkpopulations？Completethesentencesblow.A：Ageforreproducingyoung________________________________________________________________________B：Timefortheyoungtodevelop__________________________________

7、______________________________________C：Numberofyoung________________________________________________________________________6．Howlonghavesharkspeciesbeeninexistence?7．WhatdoesDonthinkwillhappenifwedon'tslowdownthefishingofsharks?Suggestedanswers：1．No.

8、2．Onlyafew.3．Sharksneedtobeprotectedasmillionsarekilledeachyearbyhumanbeings，whereasonlyafewhumanbeingsarekilledeachyearbysharks.4．Sometimestheyarekilledbyaccidentandsometimesonpurpose.Forexample，sharkfinsoupisadelicacyinsomeAsiancountr