高中英语导学案与练选修七unit3undertheseaperiod 7

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1、Period7　ListeningTask，TalkingandWritingTeachingaims　　　　　1．Studentswillbeabletofindoutthereasonswhythepopulationofsharksdecreasessharply.2．Studentswillbeabletoexpressopinionswiththepoliteexpressionslike：Idon'tthinkitiswiseto...Itwouldbebetterifwe...Itisagoodideato...Isupposeitisright...Iwonderif...3

2、．Studentswillbeabletopersuadethelocalgovernmenttoprotectwildlifeinapoliteway.Teachingprocedures　　　　　Step1　BeforelisteningShowstudentsapictureofsharkandtellthemafactthatsharkpopulationsaredecreasingrapidly.Step2　DuringlisteningTask1：TellstudentsJordonDaviesisinterviewingthesharkexpertDonJamesabout

3、thesharks'situation.Firstreadthestatementsbelow.Thenlistenandnumberthesestatementsintheorderthattheyhearthem.□Sharkpopulationsgrowataveryslowrate.□Alotarekilledbecauseofmodernfishingtechnology.□Governmentsshouldtakeactionsothatthefishingofsharksissloweddown.□Sharkattacksgetalotofattentioninthenews.

4、□Sharkpopulationsaredecreasingataseriousrate.□Somespeciesneedtobeprotected.□Thechanceofbeingbittenbyasharkisactuallyverysmall.□Millionsofsharksarekilledeachyear.Keys：theorder：74815623Task2：Listenagainandanswerthefollowingquestions：1．Shouldpeoplebeafraidofswimminginthesea?2．Howmanypeoplearekilledbys

5、harkseachyear?3．Dosharksorpeopleneedtobeprotected？Why?4．Whyaresomanysharksbeingkilled?5．Whydoestheshark'sbiologyaffectsharkpopulations？Completethesentencesblow.A：Ageforreproducingyoung________________________________________________________________________B：Timefortheyoungtodevelop_________________

6、_______________________________________________________C：Numberofyoung________________________________________________________________________6．Howlonghavesharkspeciesbeeninexistence?7．WhatdoesDonthinkwillhappenifwedon'tslowdownthefishingofsharks?Suggestedanswers：1．No.2．Onlyafew.3．Sharksneedtobepro

7、tectedasmillionsarekilledeachyearbyhumanbeings，whereasonlyafewhumanbeingsarekilledeachyearbysharks.4．Sometimestheyarekilledbyaccidentandsometimesonpurpose.Forexample，sharkfinsoupisadelicacyinsomeAsiancountr