Under the sea Period&am
时间:2021-03-16 作者:未知 来源:网络整理
period4 grammarteachingaims 1.studentswillbeabletorecognizethe-ing/beingdoneformsandknowtheexactmeaningsofthem.2.studentswillbeabletousethesetwoformscorrectly.teachingprocedures step1 revisionaskstudentstoanswerthefollowingquestionswithoutreferringtothetextbook.1.whatdidclancywitnesswhenherandowntotheshore?2.whydidclancyruninahurry?3.whatdidoldtomdowhentheyheadedintothebay?4.whatdidoldtomdoaftergeorgebeatthewater?5.whatdidclancywitnesswhentheydrewnear?suggestedanswers:1.hesawawhalethrowingitselfoutofthewaterandthencrashing_downagain.2.becauseclancyhadalreadyheardthatgeorgedidn'tlikebeing_kept_waiting.3.theycouldseeoldtomswimmingbytheboat,showingthemtheway.4.tomcircledbacktotheboat,leadingthemtothehuntagain.5.hecouldseeawhalebeing_attackedbyapackofaboutsixotherkillers.next,askstudentstopayattentiontotheunderlinedwordsandleadintothegrammaritem—“v.-ing”/“beingdone”.step2 grammarlearning1.现在分词(-ing形式)的构成。v.-ing形式由“do+ing”构成,其否定形式是“notdoing”,v.-ing可以带宾语或状语构成v.-ing短语,没有人称和数的变化,但有时态和语态的变化。2.动词-ing形式的被动式分一般式和完成式:(1)一般式:表示这个被动的动作正在进行或与谓语表示的动作同时发生。(2)完成式:强调这个被动的动作在谓语动词所表示的动作之前完成。 语态时态主动语态被动语态一般式(not)doing(not)beingdone完成式(not)havingdone(not)havingbeendone 3.动词-ing的被动式的句法功能。(1)作主语。如:so_being_killed_by_sharkswasacommonthing.(2)作宾语,用在介词后或需要带-ing形式作宾语的动词后。如:georgedidn'tlikebeing_kept_waiting.hewasterrifiedofbeing_abandoned_by_us.doyouremember_having_been_takentobeijingattheageoften?(3)作表语。如:whatworriedthechildmostwashisnot_being_allowed_tovisithismotherinthehospital.(4)作定语。如:theproblembeing_discussedisofgreatimportance.(5)作状语。如:having_been_shown_aroundthelibrary,weweretakentoseethelab.(6)作补足语。如:aswedrewcloser,icouldseeawhalebeing_attackedbyapackofaboutsixotherkillers.whenweapproachedhim,isawjamesbeing_held_upinthewaterbyoldtom.[注意](1)v.-ing形式的被动式主要在句子中作状语、宾语补足语和定语。但v.-ing形式的被动式的完成式,一般在句中作状语(偶尔作非限定定语),不作其他成分。theydon'tlikethe_design_of_the_new_bridge_being_built.(正在建造的桥的设计)共2页,当前第1页12not_having_been_completed,themuseumcan'tbevisitedyet.(由于没有完工……)(2)v.-ing形式的被动式逻辑主语(即动作的承受者)如果也是主句的主语,就不需要表示出来,但是如果逻辑主语不是主句的主语,就得把v.-ing形式自己的主语表示出来。如:thewholeclassroomhaving_been_cleaned,thestudentswenthomehappily.(3)在want,need,deserve,require,repay,bear,take等动词及形容词worth后,习惯用动词-ing的主动形式表示被动意义,相当于“tobedone”。如:thehousewants_cleaning.这房屋需要打扫。mywatchneeds_repairing.我的手表需要修理。thewaydeserves_mentioning.这个方法值得一提。theseyoungtreeswillrequire_looking_aftercarefully.这些小树需要细心照顾。thefilmisworth_seeing.这部影片值得一看。step3 exercises句型转换(改成带-ing形式被动结构的简单句)(1)thehotelwhichisbeingbuiltnowbesidetheparkwasdesignedbyagroupofyoungmen.(2)thelittlegirlwaseventuallyawarethatherparentsabandonedherinthemountainousvillage.(3)hewouldcomeevenifwedon'tinvitehim.(without)(4)afterhehadbeenexaminedseveraltimes,hewastoldtobehealthy.(5)inoticedthatsomepeopleweretakentothepolicestation.suggestedanswers:(1)thehotelbeingbuiltnowbesidetheparkwasdesignedbyagroupofyoungmen.(2)thelittlegirlwaseventuallyawareofbeingabandonedbyherparentsinthemountainousvillage.(3)hewouldcomewithoutevenbeinginvited.(4)afterhavingbeenexaminedseveraltimes,hewastoldtobehealthy.(5)inoticedsomepeoplebeingtakentothepolicestation.step4 drillingaskstudentstodoexercise1onpage23andcheckwiththeirpartnersthenchecktogether.askstudentstodoexercise2andchecktheanswerstogether.keys:1.beingattacked 2.beingheldup 3.beingincluded 4.havingbeenaccepted5.beingtold 6.beinghelpedout 7.beingtaken 8.beingphotographed 9.beingswallowed.step5 usingstructuresshowstudentsthe6picturesonpage64andaskthemtodescribethemusingthepassive-ingforminpairs.keys:1.beinginvited 2.beingkeptwaiting 3.beingattacked 4.beingawarded 5.beingshoutedat 6.beingblamedstep6 homeworkfinishoffexercise2onpage64.共2页,当前第2页12