《Lesson16UnitReview》课文讲解和练习

lesson16unitreview语法专项讲解语法专讲现在完成时：现在完成时的基本概念和用法：现在完成时由have（has）＋动词的过去分词构成。规则动词的过去分词的构成与动词过去式相同，不规则动词的过去分词各不相同，需个别记忆。（1）现在完成时表示过去所发生的动作对现在的影响或产生的结果，常与just（刚刚），already（已经），ever（曾经），never（从来），yet（尚，还）等表示时间的副词搭配使用。Haveyoueverseenthefilm?你看过这部电影吗？Shehasalreadyboughtalotofthings.她已经买了许多东西。（2）表示一个从过去某个时间开始，延续到现在并可能持续下去的动作，常与表示段时间的时间状语连用，这样的时间常用since或for来构成。since后面加时间点或从句（从句的时态常用一般过去时）for后加时间段：Hehasworkedherefor15years.他在这里工作了 15年了。IhavestudiedEnglishsinceIcamehere.自从我来这里，一直在学英语。肯定式，否定式，疑问式如下：（We,You,They）havereadit.He（She）hasreadit.（We,You,They）havenotreadit.He（She）hasnotreadit.HaveI （we,you,they ）readit?Hashe （she）readit?（3）某些非延续性动词即动作开始便终止的动词，在现在完成时中不能与表示一段时间的状语搭配。例如下面这些动词属于非延续性动词，并非不能用于现在完成时，而是不能接由

for

或since引导的时间状语。die, arrive, join, leave, go,finish,buy,comelend,borrow,marry, 例如：Hehascomeherefortwohours. （×）他来了两个小时了。Hehasbeenherefortwohours.（4）have（has）goneto表示去了某地但还没有回来。 havehas）beento表示去过某地并且已经回来。HehasgonetoShanghai.他到上海去了。HehasbeentoShanghai.他去过上海。现在完成时与一般过去时的区别：现在完成时表示过去发生的某一动作对现在造成的影响或结果，强调的是现在的情况，所以它不能和表示过去的时间状语连用。而一般过去时只单纯表示过去的动作或状态，和目前情况无关，它可以和表示过去的时间状语，如 yesterday,lastyear,justnow 等连用。试比较：Itsnowedheavilyyesterday.昨天雪下得很大。Ithassnowedforthreedays.已经下了三天雪了。现在完成时专项练习针对练习基础过关 课堂巩固，基础闯关一、 单项选择。()1、Bothhisparentslooksad.Maybethey_________what'shappenedtohim.A.knewB.haveknownC.mustknowD.willknow()2、Hehas_______beentoShanghai,hashe?A.alreadyB.neverC.everD.still()3、HaveyoumetMr.Li______？A.justB.agoC.beforeD.amomentago()4、Thefamouswriter_____onenewbookinthepasttwoyear.A.iswritingB.waswritingC.wroteD.haswritten()5、—Ourcountry______alotsofar.—Yes.Ihopeitwillbeeven______.A.has changed;well B. changed;goodC.has changed;better D. changed;better( )6、ZhaoLan______already ______inthis schoolfortwoyears.A.was;studyingB.will;studyC.has;studiedD.are;studying()7.We______XiaoLisinceshewasalittlegirl.A.knowB.hadknownC.haveknownD.knew()8、HarryPotterisaverynicefilm.I_______ittwice.A.willseeB.haveseenC.sawD.see()9.—ThesefarmershavebeentotheUnitedStates.—Really?When_____there?A.willtheygoB.didtheygoC.dotheygoD.havetheygone()10.—______you___yourhomeworkyet?—Yes.I_____itamomentago.A.Did;do;finishedB.Have;done;finishedC.Have;done;havefinishedwill;do;finish拓展提高 课后拓展，提升能力Ⅰ.（中考高频题）单项选择()1.(2005年重庆)Nowadayssciencefictionisn’tas____________ascartoonsamongteenagers.A.popularB.morepopularC.lesspopularD.themostpopular()2.（2006年福州）WearegladtoseethatShanghaiisdeveloping________theseyearsthaneverbefore.A.quickly B.lessquicklymorequicklyD.themostquicklyII.（创新题）句型转换填空。1、Hehasneversurfed, _____________?（改成反意疑问句）2、Theyhavebeenheresince2000. (对划线部分提问)________________havetheybeenhere?3、Theoldman_________lastyear.He____________forayear.(die)（动词填空）4、Thisfactoryopenedtwentyyearsago.(同义句转换)Thisfactory__________________fortwentyyears.5、MissGaoleftanhourago.(同义句转换)MissGao_______________________________anhourago.6、HermotherhasbeenaPartymemberforthreeyears.（同义句）Hermother____thePartythreeyears__.7、TheGreenFamilymovedtoFrancetwoyearsago.(同义句转换)_______twoyears________theGreenfamilymovedtoFrance.8、Thebushasarrivedhere.Itarrivedtenminutesago.(把两个句子合并成一个句子 )__________________________________________（兴趣题）选词填空。请从方框内选择适当的词语完成这封信。Writing,talking,sitting,playing,swimming,flying,sunny,studying,drawing,havingDearBob,MynameisRich.I’mfourteenyearsold.I’m(1)__________inamiddleschool.Myschoolisniceandclean.Thereare30studentsinmyclass.It’s(2)_______today.MyclassmatesandIare(3)________agoodtimeonthebeach.It’saniceplace.Thewaterisblueandclear.Manybirdsare(4)________overthesea.Manypeopleare(5)_________.Someboysare(6)_________football.Somepeopleare(7)________onthebeach.Agirlis(8)_________picturesonachair.Anothergirlis(9)________photos.I’m(10)_________toyou!Whatareyoudoing?Ihopeyoucanwritetomesoon.Bestwishes!Rich1____2______3_______4________5_______6_____7______8_______9_______10_______IV.（综合题）WeareallbusytalkingaboutandusingtheInternet,buthowmanyofusknowthehistoryoftheInternet?ManypeoplearesurprisedwhentheyfindthattheInternetwassetupinthe1960s.Atthattime,computerswerelargeandexpensive.Computernetworks(网络)didn'tworkwell.Ifonecomputerinthenetworksbrokedown,thenthewholenetworkstopped.Soanewnetworksystem(系统)hadtobesetup.Itshouldbegoodenoughtobeusedbymanydifferentcomputers.Ifpartofthenetworkwasnotworking,information(信息)couldbesentthroughanotherpart.Inthiswaycomputernetworksystemwouldkeeponworkingallthetime.Atfirst,theInternetwasonlyusedbythegoverment(政府),but,intheearly1970s,university(大学),hospitalsandbankswereallowed()touseittoo.Howerver,computerswerestillexpensiveandtheInternetwasdifficulttobecomecheaperandeasiertouse.Scientistshadalsodevelopedsoftware(软件)thatmade"Surfing"(浏览）theInternetmoreconvenient(方便).Todayitiseasytoget-on-lineanditissaidthatmillionsofpeopleusetheinterneteveryday.Sendinge-mailismoreandmorepopularamongstudents.TheInternethasnowbecomeoneofthemostimportantpartsofpeople'slife.（）1.TheInternethasahistoryof______years.A.about40B.lessthan30C.morethan45D.nearly35（）2.Scientistssetupanewnetworksystemto_______.A.makethecomputercheaper.B.usethecomputerwidelyC.makethecomputergowellD.developnewsoftwares（）3.TheInternetwaswidelyusedinthe______.A.1960sB.1970sC.1980sD.1990s（）4.Theunderlinedwords

"get-on-line"

in

Chinesemeans"________"A.上机B.上网C.接线D.买电脑（）5.WhichofthefollowingisNOTture?A.Inthe1960scomputernetworkssystemwentwrongeasily.B.Computersaremuchcheaperthanbefore.C.TodaytheInternetisusedeverywhere.D.Peoplehadenoughsoftwarestogeton-linefifteenyearsago激活潜能围绕主题，实战应用V.（开放题）汉译英。1、他昨天收到一封信。He_______aletter_______.2、我父亲以前到过长城。Myfather____________totheGreatWall.3、她还没有看过那部新电影。She_____________thisnewmovieyet.4、她去过上海吗。_____She______toShangHai?5、他这些天上哪儿去了？Where_____he_______inthesedays?VI.探究题单项选择()1.MissGreenisn'tintheoffice.she_______tothelibrary.A.hasgoneB.wentC.willgoD.hasbeen()2.Myparents______Shandongfortenyears.A.havebeeninB.havebeentoC.havegonetoD.havebeen()3.Thestudentshavecleanedtheclassroom,_____?A.