人教版八年级英语下册Unit 10 现在完成时精讲精练

八下unit10现在完成时精讲精练表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“for+时间段”、“since+过去时间点”、“since+过去时的从句”、“since+一段时间+ago”。且for与since引导的时间状语可以相互转换。一、含since或for的现在完成时某些动词的现在完成时可表示过去某一时间开始并一直持续到现在的动作或状态，常与“for+时间段”、“since＋过去的时间点或从句”或“since+时间段＋ago”连用。Hehasworkedhereforovertwentyyears.Hehaslearnedabout5,000Englishwordssincehewenttocollege.She’sbeenatthisschoolsincefiveyearsago.二、现在完成时中的谓语动词在现在完成时中，与“for+时间段”、“since+过去的时间点或从句”或“since＋时间段＋ago”连用的动词必须为延续性动词。常见的延续性动词有have，live，teach，learn，work，study，know等；常见的非延续性动词（词组）有come，go，leave，start，die，finish，become，join，buy，getmarried等。三、部分非延续性动词（词组）和与之对应的延续性动词（词组）的表达。非延续性动词（词组）延续性动词（词组）非延续性动词（词组）延续性动词（词组）becomebeopenbe

openborrowkeepcloseclosedbuyhavelosebelostget

upbe

updiebedeadfall

asleepbe

asleepjoinbeamemberof/beinmake

friendsbe

friendsbegin/startbeonfinishbe

overcome/gobehere/thereleave

be

away

(from)Turnon/offbeon/off非延续性动词和延续性动词之间的转换1.转换为相应的延续性动词，用于现在完成时。borrow—keepbuy—haveputon—wearcatchacold—haveacoldgettoknow—knowgettosleep—sleep2.转化为“be+形容词/副词/介词/名词”begin/start—beongoout—beoutclose—beclosedopen—beopengetto/arrive/reach—be(in)die—bedeadleave—beawayfinish—beoverfallsleep—beasleepjoin—bein/beamemberofbecome—bemakefriends—befriendscome/go—be+相应的介词短语达标检测一．单项选择。（）1.—Haveyoueverbeentoanaquarium?—No,_____.A.Ihave

B.Iamnot

C.Ihaven’t

D.Ihasn’t（）2.—I’veneverbeentoawaterpark.—_______A.Me,too

B.Me,neither.

C.Mealso.

D.Meboth.（）3.Hasthetrain_____yet?A.gotto

B.reached

C.arrived

D.arrivedat（）4.Theteacherasked_____.A.what’syourname

B.whatwasyournameC.whatyournameis

D.whatyournamewas（）5.—DoyoumindifIstayherealittlelonger?

—_____.A.No,youcan’tB.Yes,youmay

C.Certainlynot

D.Yes,notatall（）6.Howlonghashisbrother_____thebook?A.kept

B.bought

C.lent

D.borrowed（）7.I’veneverseensuchafinepicture_____.A.ago

B.before

C.yet

D.later（）8.—HastheforeignerbeentomanyinterestingplacesinBeijing?—Yes,buthehasnot_____beentomanyotherpartsofChina.A.already

B.still

C.yet

D.never二．用for或since完成下列句子。1.—Howlonghaveyouhadthatbikeoverthere?—I’vehadit_________threeyears.2.—Howlonghashissonownedthetrainandrailwayset?—Hehasownedit_________hisfourthbirthday.3.—Haveyoueverplayedfootball?—Yes.IplayedfootballwhenIwaslittle,butIhaven’tplayed_________alongtime.4.Alisonhasbeenskating_________fivehoursago.5.We’vebeenfriends_________weleftschool.三．改写同义句1.Theyhavewaitedherefortwohours.Theyhavewaitedhere________________________________.2.Ileftmyhometownlastmonth.I________________________frommyhometownforamonth.3.Iboughtthebookaweekago.I________________thebookforaweek.4.Ijoinedthedancingclubtwoyearsago.I________________________thedancingclubfortwoyears.5.Thefilmbegantwentyminutesago.Thefilm________________________fortwentyminutes.四.用所给动词的正确时态填空。1.I__________(finish)today’shomeworkalready.Whataboutyou?2.He____________just____________(decide)tojointheswimmingclub.3._______you____________(see)Jackrecently?——No,Ihaven’t.4.Howlong____________you____________(be)inclasstoday?5.HowmanyEnglishwords____________they____________(learn)?6.He___________ever___________(be)totheHistoryMuseumseveraltimes.7.—_____________youever__________