新人教版八年级下Unit 9 Have you ever been to a museum现在完成时课件.ppt

1、The Present Perfect Tense现在完成时,（小结）,have/has + 动词的过去分词,1.谓语构成：,see-begin-eat-give-hear-take-write-,seen,begun,eaten,given,heard,taken,written,2.时间 状语：,already, yet, ever, never, just, before； once, twice；for +时间段；since+时间点/从句(一般过去时)； in /during the last +时间段；so far.,3.Say the differences: have/has b

2、een to have/has gone to have/has been in,曾经去过某地（表示某人的一种经历）,可与once, twice, already,ever, never等连用。,去某地了,说话时某人已离开此地,在去某地的途中或已在某地。,逗留在某地(已经一段时间)，常和for ten days,since I came here等连用。,1.Where is Jim? He Wuhan.2. My parents the Great Wall twice. They like there very much. you ever to the Happy valley?How

3、long Peter the West Hill farm?My sister the shop. She will be back in two hours.She Shanghai. She isnt here.She Shanghai. She is here.She Shanghai for two years,has gone to,have been to,Have,been to,has,been in,has gone to,has gone to,has been to,has been in,4.already -yet,She has not seen this film

4、 .She has seen this film.I have washed my hair.Have you washed your hair ?He has watched the play.He has not watched the play .,已经,还，已经,用于肯定句,用于疑问句,否定句,yet,yet,yet,already,already,already,5.现在完成时中的 since与for,I learned English five years ago. (用since改写)1.I _ _ English since five years_.2.Five years _

5、 _ since I _ English.3._ _ five years since I _ English.,have learned,ago,has passed,learned,It is,learned,现在完成时since一般过去时时间点,现在完成时since一般过去时从句,It is时间段since一般过去时从句,总结:since 的句子结构,判断正误(TorF)I have bought the computer for a week.( )I have left my home since two years ago.( )How long have you borrowed

6、 the book?( ),F,F,F,非延续性动词的现在完成时态不能和表示延续的时间状语连用,即不能与表示一段时间的状语,for+时间段, since+时间点/从句连用,也不能用在how long引导的特殊疑问句。,注意：若与延续性时间状语连用时，非延续性动词改为延续性动词。,结论,open- close- fall asleep-die- become- begin/start-come/go/arrive/get/reach/move-leave- buy-end/finish- borrow-catch a cold-,常见非延续性动词与延续性动词(或状态动词)的对应关系如下:,be

7、open,be closed,be asleep,be dead,be,be on,be in/at,be away (from),have,be over,keep,have a cold,判断正误We havent met each other since he left.( ),非延续性动词的否定结构可以与延续性时间状语连用。,T,结论：,翻译句子：1、 吉姆买了这只钢笔两年了。2、 李雷已经入党两年了。3、那部电影开始30分钟了。,Jim _ _the pen for two years.,Li Lei _ _ _the Party for two years.,The film _

8、_ _for thirty minutes.,4、自从两年前这家商店就开了。5、那个老人已经死了五年了。 6、莉莉六年前就离开家了。,The shop _ _ _since two years ago.,The old man _ _ _for five years.,Lily _ _ _ _her home since six years ago.,现在完成时所表明的是过去发生的动作对现在的影响,强调的是现在的情况,不可以和表示过去的时间状语yesterday,in 1991,three days ago last time,last night等连用。一般过去时表明的是过去发生的事实,和现

9、在不发生关系。,7.现在完成时和一般过去时的区别,1.My father_ home for nearly three weeks.A.has gone away from B.has leftC.has been away from D.went away 2.Mr and Mrs Green have_in China for a week. A.been B.got C.arrived D.reached3.-Wheres Mary? -Oh,she _the library.A.has gone to B.went to C.has been to D.had gone to4.I _ the film. I dont want to see it again.A. have seen B. saw C. will see D. see5.-How long _ this factory_? -Since 2001. A. has,openedB. has,been openC. has,begun D. has,become,C,A,A,A,B,