2024-2025学年新教材高中英语Unit2WildlifeProtectionPeriod4DiscoveringUsefulStructures学案新人教版必修第二册

PAGEUnit2WildlifeProtectionPeriod4DiscoveringUsefulStructures学习目标1.Tohaveagoodunderstandingofthestructureofthepresentcontinuouspassivevoiceanditsfunction.2.Tomastertheusageofthepresentcontinuouspassivevoicethroughself-studyandpractice.3.Tousethepresentcontinuouspassivevoiceflexiblyintherealcontext.课堂探究PartⅠObservationandanalysisPayattentiontotheunderlinedparts:thepresentcontinuouspassivevoice,changethemintoactivevoiceandcomparethedifferencesinmeaning.1.Africanelephantsarebeinghunted.→

2.Whatisbeingdonetohelpthem?→

3.Whatmeasuresarebeingtakentohelpthem?→

Differences:

PartⅡThestructuresandthefunctionsActivity1Summarizethestructuresofthepresentcontinuouspassivevoice.确定结构

否定结构

一般疑问结构

特别疑问结构

Activity2Observethefollowingsentencesandfigureoutthefunctionsofthepresentcontinuouspassivevoice.1.Mysisterisnowbeinginterviewed.

Function:

2.Manyinterestingexperimentsarebeingcarriedoutthesedays.

Function:

3.Heisalwaysbeingpraisedbytheleader.

Function:

4.Acelebrationisbeingheldthisweekendforhissuccess.

Function:

被动语态的运用情境:不知道或者不须要提及动作的发出者;强调动作的承受者。PartⅢConsolidationActivity1Choosethesuitableverbformstocompletethesentences.1.Im(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.3.Whatpartofthecityis(attacked/beingattacked)now?4.Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.5.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?6.Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.Activity2Rewritethesentencesusingthepresentcontinuouspassivevoice.(WorkbookP68UsingStructuresExercise2)1.Thezooisopeninganewareaforthetwobabyelephants.→

2.Thedoctorsarenotexaminingthepatient.→

3.Theyareraisingmorefundsforresearchintowildlifeprotection.→

4.Thecityissettingupanewnaturereserveforendangeredanimals.→

5.Todaywearecompletingourwritingtaskonline.→

Activity3LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthefollowingpassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Smallbirds(catch)withnets.Wildducks(sell)atfoodmarkets.Fishandsnakes(kill)forfoodinrestaurants.Andevenworse,thewetland(destroy).Someparts(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatcanwedo?

Activity4Completethespeechwiththecorrectsentencesorclauses.Thendiscusspossiblesolutionsingroups.(WorkbookP69UsingStructuresExercise5)Hello,everyone!IvejustcomebackfromawonderfultriptoTibet.Itwassobeautifultherethat.Thescenerywassoimpressiveandtheairwassofreshandclean.However,.Cans,astheypassthroughTibet.Iworryabouttheeffectthiswillhaveonthelocalwildlife.Weshouldallthinkaboutthis.

A.Visitorsarebeingtoldtopaymoreattentiontoprotectingtheenvironment.B.thisbeautifulcountrysideisbeingspoiledbycarelessvisitorsC.paperandplasticbagsarestillbeingthrownawaybymanytourgroupsD.Howcanwemakevisitorsmoreawareofthedamagethatisbeingdonetotheenvironment?E.IfeltIwasinafairyland(仙境)PartⅣSummary巧学助记主动语态变被动语态的原则:“三变”原则:原主变为by短语,原宾变为现主语,谓语主动变被动。“三不变”原则:原句意思不变,原句时态不变,原句主谓宾以外成分不变。核心素养专练Ⅰ.Completethesentenceswiththecorrectformsofthegivenverbs.(WorkbookP68UsingStructuresExercise1)1.Anewlibrary(build)inourschool.Itwillopennextyear.

2.Conservationprogrammesforwildanimals(discuss)inAustralianow.

3.What(do)inyourtowntoprotectlocalwildlife?

4.Dontworry.Measures(take)tostopsuchathingfromhappeningagain.

5.I(tell)thatmyIDandpasswordarenotworking.WhatshouldIdonow?

6.Mum,mycomputer(fix).CanIuseyoursforawhile?

7.Itisbelievedthatmanyplantspecies(threaten)withextinction.

Ⅱ.Readandcompletethepassageaboutwildlifeprotectionwiththecorrectverbformsinbrackets.(WorkbookP69UsingStructuresExercise4)Thebalanceofnatureonourplanet(threaten)asalargenumberofspecies(drive)toextinction.Somescientistspredictthathalfofallourplantsandanimalswillbeextinctby2100.Thequestioniswhythesespecies(endanger).Oneofthemainreasonsislossofhabitat.Animalhabitats(destroy)ashumanssearchformorenaturalresourcestoconsume(消费).Moreland(alsouse)forgrowingcropsorkeepinglivestock(家畜).Inaddition,massiveamountsofwaste(produce)byhumans,whicharepollutinganimalhabitats.Harmfulchemicals(create)byhumanactivitiesarebeingreleasedintotheair,water,andsoil.Thewholeofnature(affect)byhumanbeings.

However,muchhasbeendoneand(stilldo)tosaveendangeredspecies.Manyprogrammes(design)topreservethepopulationsofendangeredspecies.Inmyopinion,thereisstillhopethathumanscanliveinharmonywithallthingsontheearth.

Ⅲ.Makesmallconversationswithyourclassmatesusingthepresentcontinuouspassivevoice.

参考答案课堂探究PartⅠ1.HuntersarehuntingAfricanelephants.2.Whatarepeopledoingtohelpthem?3.Whatmeasuresarepeopletakingtohelpthem?Differences:所强调的重点(主语)不同。PartⅡActivity1确定结构be(am/is/are)+beingdone否定结构be(am/is/are)+not+beingdone一般疑问结构be(am/is/are)+主语+beingdone特别疑问结构特别疑问词+be(am/is/are)+主语+beingdoneActivity21.表示此时此刻正在进行的被动动作。2.表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行)。3.表示一种常常性的被动行为,常和always,constantly等表示频度的副词连用,这种用法常常带有赞扬或厌恶的感情色调。4.有时可表示按支配或支配将要进行的一个被动动作。PartⅢActivity11.working;beingpainted2.beingwritten3.beingattacked4.beingwatched5.hunting;beinghunted6.beingreducedActivity21.Anewareaisbeingopenedforthetwobabye