Unit 3 The Internet Discovering Useful Structures -高中英语人教版（2019）必修第二册.pptx

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1、高中英语 必修第二册 UNIT 3 THE INTERNET UNIT 3 THE INTERNET Discovering Useful StructuresReview现在完成时：have/has done被动语态：be done现在完成时的被动语态：Have/has been done1.Janes life has been greatly improved by the Internet.2.Many people have been helped by the club.3.His novel has not been finished.Have the new booking s

2、ystem for tickets been used?4.How long has the battery been used?肯定式Have/has been done否定式一般疑问句式特殊疑问句式Observe the sentences and fill in the table.Have/hasnotbeendone特殊疑问词have/has主语beendonehave/has主语beendonePracticemakesperfect.1.你的车已经修好了。2.地面还没打扫干净。3.那些房间粉刷了吗？4.这部电影已经放映多久了？1.Your car has been repaire

3、d.2.The floor hasnt been cleaned.3.Have those rooms been painted?4.How long has the film been on?lThe club has been founded for five years.lMy report has been handed in for a week.Correct the mistakes.The club was founded five years ago.My report was handed in a week ago.注：非延续性动词不能和for或since引导的表示一段时

4、间的状语连用u since;so far;up to now;by now,ever since,for+一段时间；in the past/last+一段时间；over the past 一段时间 recently；latelyu never；ever；beforeu just；already；yet；u twice；several times；it is the first/second time that.主动：have/has done被动：have/has been done标志词1.Muchusefulinformationabouttheseplanets_(collect)sin

5、ce1971.2.Thenewdictionaries areveryuseful.Theysell welland_(sell)outalready.3.Inmyhometown,thereisalwaysaharvestsupperforthefarmersafterallthewheat_(cut)4.ImwritingtoinformyouthataTaiChiClub_(found)inourschoolrecently.5.Inrecentyears,ourlivingenvironment_(pollute)worseandworse.6.The1，800yearsoldYell

6、owCraneTower_(rebuild)manytimesinhistory.7.Recentlyasurvey_(do)tofindouttheaveragenumberofbookseachpersonreadseveryyearinChina.Practicehas been collectedhave been soldhas been cuthas been foundedhas been pollutedhas been rebuilthas been done8Over the past four years,more than$10 million _ (spend)car

7、rying out the project.9Its the first time that the old computer _(check)since I bought it.10For centuries,the ancient language _(pass)on from one generation to another.11Some efforts _(make)to improve the air quality in the city last winter.12Computer science,in which rapid progress _(make)in recent

8、 years,plays a very important part in our daily lives.has been spenthas been checkedhas been passedhave been madehas been made1.（已经证实）thatitwasthedriverscarelessnessthatresultedintheterribleaccident.2.Inrecentyears，stress_(regard)asacauseofawholerangeofmedicalproblems.3.Itisthefirsttimethatmusicther

9、apy_(introduce)intotreatingdepression.4.Neverinmylife_Ieverbeentouchedbysuchasong.5.Allthepreparationsforthetask_(complete),andwerereadytostart.6.Numerousmeasures_(take)tocopewiththeseproblemsbythegovernmentuptonow.It has been confirmed that has been regardedhas been introducedhave been completedhavehave been takenHomework