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

UNIT3THEINTERNET

DiscoveringUsefulStructures

Review现在完成时：have/hasdone被动语态：bedone现在完成时的被动语态：Have/hasbeendoneJane'slifehasbeengreatlyimprovedbytheInternet.Manypeoplehavebeenhelpedbytheclub.Hisnovelhasnotbeenfinished.Havethenewbookingsystemforticketsbeenused?Howlonghasthebatterybeenused?肯定式Have/hasbeendone否定式一般疑问句式特殊疑问句式Observethesentencesandfillinthetable.Have/hasnotbeendone特殊疑问词＋have/has＋主语＋beendonehave/has＋主语＋beendonePracticemakesperfect.你的车已经修好了。地面还没打扫干净。那些房间粉刷了吗？这部电影已经放映多久了？Yourcarhasbeenrepaired.Thefloorhasn’tbeencleaned.Havethoseroomsbeenpainted?Howlonghasthefilmbeenon?Theclubhasbeenfoundedforfiveyears.Myreporthasbeenhandedinforaweek.Correctthemistakes.Theclubwasfounded

fiveyearsago.Myreportwashandedin

aweekago.注：非延续性动词不能和for或since引导的表示一段时间的状语连用since;sofar;uptonow;bynow,eversince,for+一段时间；

inthepast/last+一段时间；overthepast＋一段时间recently；lately

never；ever；before

just；already；yet；

twice；severaltimes；itisthefirst/secondtimethat.....主动：have/hasdone被动：have/hasbeendone标志词Muchusefulinformationabouttheseplanets_________________(collect)since1971.Thenewdictionariesareveryuseful.Theysellwelland____________(sell)outalready.Inmyhometown,thereisalwaysaharvestsupperforthefarmersafterallthewheat________________(cut)．I'mwritingtoinformyouthataTaiChiClub_______________(found)inourschoolrecently.Inrecentyears,ourlivingenvironment_______________(pollute)worseandworse.The1，800­years­oldYellowCraneTower_________________(rebuild)manytimesinhistory.Recentlyasurvey________________(do)tofindouttheaveragenumberofbookseachpersonreadseveryyearinChina.Practicehasbeencollectedhavebeensoldhasbeencuthasbeenfoundedhasbeenpollutedhasbeenrebuilthasbeendone8．Overthepastfouryears,morethan$10million________________

(spend)carryingouttheproject.9．It'sthefirsttimethattheoldcomputer_____________(check)sinceIboughtit.10．Forcenturies,theancientlanguage_______________(pass)onfromonegenerationtoanother.11．Someefforts_____________(make)toimprovetheairqualityinthecitylastwinter.12．Computerscience,inwhichrapidprogress______________(make)inrecentyears,playsaveryimportantpartinourdailylives.hasbeenspenthasbeencheckedhasbeenpassedhavebeenmadehasbeenmade1.

（已经证实）thatitwasthedriver’scarelessnessthatresultedintheterribleaccident.

2.Inrecentyears，stress_____________________(regard)asacauseofawholerangeofmedicalproblems.3.Itisthefirsttimethatmusictherapy____________________(introduce)intotreatingdepression.

4.Neverinmylife_________Ieverbeentouchedbysuchasong.

5.Allthepreparationsforthetask__________________(complete),andwe’rereadytostart.

6.Numerousmeasures______________(take)tocop