Unit2WildlifeProtectionPeriod3DiscoveringUsefulStructures课件-高一英语人教版

人教必修第二册Unit2Period3DiscoveringUsefulStructures(

英语

)ENGLISH新课导入Simple（一般）Continuous（进行）Present（现在）do/doesTenseis/am/aredoingPerfect（完成）Past（过去）Future（将来）Thepastfuture（过去将来）have/hasdonedidwas/weredoinghaddonewill/shalldowill/shallbedoingwill/shallhavedoneshould/woulddoshould/wouldbedoingshould/wouldhavedone1）能理解现在进行时的被动语态的结构及其用法；2）能用现在进行时的被动语态谈论野生动物保护。课堂学习Underlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunction.1.Africanelephantsarebeinghunted.2.Whatisbeingdonetohelpthem?3.Whatmeasuresarebeingtakentohelpthem?Rewritethethreesentencestoactivesentences.HuntersarehuntingAfricanelephants.Whatarepeopledoingtohelpthem?Whatmeasuresarepeopletakingtohelpthem?1.Theyarebeinghuntedillegallyfortheirvaluablefur.2.Muchisbeingdonetoprotectwildlife,butifwereallywanttosavetheplanet,wemustchangeourwayoflife.3.Theselargeanimalsarebeingkilledillegallyfortheirbodypartsthatareconsideredvaluable.4.Billionsoftreesarebeingcutdowneveryyeartomakepaperforhumans.Findmoresentenceswiththesameverbforminthisunit.Learnthestructuresofpresentcontinuouspassivevoice.肯定句否定句一般疑问句特殊疑问句Trytosummarizethestructuresofpresentcontinuouspassivevoice.be(am/is/are)+beingdonebe(am/is/are)+not+beingdonebe(am/is/are)+主语+beingdone特殊疑问词+be(am/is/are)+主语+beingdoneI’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Whatpartofthecityis(attacked/beingattacked)now?Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.表示说话时正在进行的被动动作，句中常用now,atthemoment等时间状语。Learnmoreaboutthepresentcontinuouspassivevoice.AsfarasIknow,heisnowbeingtreatedinChina.据我所知，他现在正在中国接受治疗。表示现阶段正在进行的被动动作，但说话瞬间未必正在进行。Manyexperimentsarebeingcarriedoutthesedays.最近许多实验都在进行着。表示一种经常性的被动行为，常与always，constantly，frequently等副词连用，往往带有夸奖，羡慕，埋怨，讨厌等感情色彩，Ifeelveryamazedthattheglassesofourlivingroomarefrequentlybeingbroken.我感到非常吃惊的是我们起居室的玻璃杯经常被打破。Thelittleboyhasmaderapidprogressrecentlyandisalwaysbeingpraisedbytheteachers.那个小男孩最近进步很快，总是被他的老师表扬。Keywordsreduce[rɪˈdjuːs]vt./vi.减少；降低；reduceto减少到

reduceby减少了

reducefrom…to从…减少到…e.g.Thesesunglassesaredesignedtoreduceglare.这些太阳镜是为减少刺眼的强光而设计的。

Costshavebeenreducedby20%overthepastyear.

过去一年，各项费用已经减少了20%。Thenumberofemployeeswasreducedfrom40to25.

雇员人数从40人减少到了25人。

Theskirtwasreducedto￡10inthesale.

在大减价期间，这条裙子减价到10英镑。due[

djuː]adj.到期的；预期的；应付的；n.应付款；应得之物dueto由于

beduetodosth预定/计划做某事e.g.Hersuccesswasdueinparttoluck.她的成功在某种程度上是由于运气好。Thefinalinstalmentontheloanisduenextweek.贷款的最后一期付款下个星期到期Myessay'sduenextFriday我的论文下周五必须交。LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.thinkabout:wildlifehabitatenvironmentpollution….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?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedarebeingcoveredis

beingpollutedDiscusswithyourpartner,andgivesomesuggestionsforLiuTao.2.Whatcanwedo?Encouragemorepeopletojoinin.ImproveawarenessofenvironmentalprotectionMakepeopleknowmoreaboutwetland.Contactwiththegovernment.Establishavolunteergroup.Advocatethemeaningofprotectingwetland.Ingroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.A:Whatdoyouknowisbeingdoneinyourneighbourhoodtoprotectanimalsandplants?B:Well,theoldtreesintheparkarebeingprotected.A:Ohyes.Theyarebeingprotectednotonlybecausetheyarethenaturalhabitatforbirds.C:That’sright.Perhapstheycouldhelpprotectthebirdsbymakingtheroadsaroundtheparkfreefromcars.D:Yes,thatwouldc