Unit 2　Section C　Discovering Useful Structures & Listening and Talking （ppt课件）(共28张PPT)-2022新人教版（2019）《高中英语》必修第二册.pptx

1、Section CDiscovering Useful Structures&Listening and Talking.知识体系图解 重点词汇1.vt.减少2.adj.由于;因为3.n.昆虫4.n.临近的地方;街区n.adj.reducedueinsectneighbourhood鹿袋鼠网净得的;纯的重点短语1.dueto2.searchfor3.rightnow4.andsoon5.becoveredwith6.beusedfor7.crashinto8.carefor9.evenworse由于;因为搜索;查找现在;此时此刻等等被覆盖被用来做撞上照顾;照料更糟的是重点句式Putpaperc

2、ut-outsonwindowssothatbirdsdonotcrashintothem.重点语法现在进行时的被动语态.单词拼写1.WhenMarywasplayingbythewoods,shehappenedtoseea(袋鼠)comeby.2.Thedesignofthebicyclehasmanagedto(减少)theeffectsofwindresistance.3.Thestudentsinourclassoftendovolunteerworkinthe(街区).4.Ihaveneverseenthiskindof(昆虫)before.5.Hecameupwiththisqu

3、estioninthreedifferentwaysin(寻找)ofananswer.kangarooreduceneighbourhoodinsectssearch.动词填空1.Icantusemycartodaybecauseit(repair)inthegarage.2.Theyhavetositoutsidebecausetherooms(paint).3.Atpresent,ameeting(hold)todiscussthequestion.4.Dontworry.Supper(prepare)inthekitchen.5.Noweffectivemeasures(take)top

4、reventtheriversfrombeingpolluted.isbeingrepairedarebeingpaintedisbeingheldisbeingpreparedarebeingtaken重点词汇1.Itisreportedthatlivingspacesforwildlifearebeingreducedduetothecuttingoftrees.据报道,由于砍伐树木,野生动物的生存空间正在减少。【词汇精讲】reduce是及物动词,意为“减少”。Oneofthemosteffectivewaystoreducestressistotalkaboutfeelingswiths

5、omeoneyoutrust.减少压力最有效的方式之一就是与你信任的人聊聊感受。【词汇拓展】Thoughthepriceofthehousehasbeenreducedby10%since2017,wecantafforditeither.尽管从2017年以来房价下降了10%,我们还是买不起。Hislifeinthebigcitywashardandfinallyhewasreducedtobegginginthestreets.他在大城市里的生活艰难,最后被迫在街头乞讨。2.Itisreportedthatlivingspacesforwildlifearebeingreduceddueto

6、thecuttingoftrees.据报道,由于砍伐树木,野生动物的生存空间正在减少。【词汇精讲】due是形容词,意为“由于;因为;到期的;应付的;应有的”,常和to连用。Thesportsmeetingwasputoffduetothebadweather.由于天气不好运动会推迟了。Thenexttrainisdueinfiveminutes.下一班火车预计在五分钟后抵达。Havetheybeenpaidthemoneythatisduetothem?付给他们应得的钱了吗?【词汇拓展】Thewagesduetohimwillbepaidtomorrow.他应得的工资明天将会付给他。Thatm

7、oneyisduetome,butIhaventgotityet.那笔钱是应付给我的,而我至今还未拿到。Look!Thefrontpartofthecarisnowtotallyoutofshapeduetothecrash.看!因为撞车,这辆车的前部现在已经完全变形了。【温馨提示】当dueto表示“由于;因造成;应给予”时,其中的to是介词,并且在句中常常作表语或状语;当dueto意为“即将/预期做”时后接不定式。3.Theygotupearlyinordertosearchforwildbirds.为了寻找野鸟,他们起得很早。【词汇精讲】searchfor为动词短语,意为“搜索;查找”。H

8、eswitchedonthetelevision,searchingforsomethingtoholdhisinterest.他打开电视机,想找个感兴趣的节目。Thepolicearesearchingforthelostchildintheforest.警察正在森林里找寻丢失的孩子。【词汇拓展】Therescueworkersremovedthebricksandstoneswithbarehandsinsearchofanysurvivorintheearthquake.救援人员徒手移开砖块和石头,搜寻地震中的幸存者。【温馨提示】(1)search前有the,a或ones等限定词时,介词

9、常用for。(2)insearchof结构中search前不带任何限定词。(3)search作动词用时,search的宾语是指搜查的范围,可以是人、物或地点;而要搜寻人或物时,要加介词for。重点句式Putpapercut-outsonwindowssothatbirdsdonotcrashintothem.把剪纸贴在窗户上,这样鸟儿就不会撞到上面了。【句式剖析】本句是一个复合句,主句是祈使句,sothat引导的是目的状语从句。sothat“以便,为了”,引导一个表示目的的状语从句(=inorderthat/so),从句里往往带有情态动词can,could,may,might等。Hewrote

10、downmyaddress,sothathemightrememberit.他写下了我的地址,以便能够记住它。ManyathletestakepartintheOlympicGamessothattheycanwingloryfortheirhomeland.许多运动员参加奥运会为的是能为祖国赢得荣誉。【句式拓展】sothat也可以引导结果状语从句,意为“结果是,所以”,句中没有情态动词。Hegotupearlysothathecaughttheearlybus.他起得早,赶上了早班车。重点语法现在进行时的被动语态一、现在进行时的被动语态的构成二、现在进行时的被动语态的用法1.表示现在时刻正在

11、进行的被动的动作AmeetingisbeingheldinthemeetingroomonthefourthfloorofBuildingNo.1.在一号楼四楼会议室正在举行一个会议。EveryclassroominthisschoolisbeingequippedwithanewTVset.在这所学校里,每间教室都正在配备一台新的电视机。2.表示现阶段正在进行的被动动作Everypossiblemeansisbeingusedtopreventtheairpollution.正在采取每个可能的方法来防止大气污染。Anothernewprojectisbeingsetuptodiscovert

12、hebestwayofsortingtherubbish.正在建另一个新的项目来找出垃圾分类的最佳办法。3.表示一种经常性的被动行为,常和always,constantly等表示频度的副词连用,常带有一定的感情色彩。Ifeelverypuzzledthatthegoodsinourshoparealwaysbeingstolen.我感到很迷惑,我们商店的商品老是被偷。Tomissuchagoodpupilthatheisalwaysbeingpraisedbytheteacher.汤姆是个好学生,他总是受到老师的表扬。4.少数及物动词现在进行时的被动语态也可以表示按计划或安排将要进行的一个被动

13、动作。TheanimalshowisbeingheldinthecitybetweenOctober10andNovember27.动物表演将于十月十号至十一月二十七号在城市里举行。Itissaidthatareserveisbeingsetupnextyear.据说明年将建一个保护区。5.“be+under/in”等“介词+名词”结构可表示现在进行时的被动语态的含义。Theproblemabouttheprotectionofforestsisunderdiscussionatthemeeting.=Theproblemabouttheprotectionofforestsisbeingdi

14、scussedatthemeeting.有关森林保护的问题正在会上讨论。Thenewreserveforwildanimalsisinuseatthemoment.=Thenewreserveforwildanimalsisbeingusedatthemoment.目前新的动物保护区正在使用中。.介词填空1.ManypeoplewenttoCaliforniainsearchgoldatthattime.答案:of2.Inordernottodisturbthebirds,theywatchedthemfaraway.答案:from3.Howcanweprotectthewildanimals

15、beinghunted?答案:from4.Mistakesduecarelessnessmayhaveseriousresults.答案:to5.WeshoulddosomethingtocareAfricanelephants.答案:for.完成句子1.她很担心生病的孩子,所以她下班后急忙赶回家。Shehersickchild,soshehurriedhomeimmediatelyafterwork.答案:wasworriedabout2.看到陌生人能如此互相关心,这真让人感动。Itisverymovingtoseehowmuchstrangerscaneachother.答案:carefor3.离开之前,他进入办公室填日报表。Beforeleaving,hewentintohisofficetothedailytimesheet.答案:fillin4.确保你有足够的时间为新的一天做准备。youhaveampletimetoprepareforthenewdayahead.答案:Makesure5.直到火被扑灭,他才意识到他受伤了。Hedidntrealizethathewasinjureduntilthefirehadbeen.答案:putout