《现在完成时态》PPT课件.ppt

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1、现 在 完 成 时 态,城厢中学 谭娟,现在完成时 Present perfect tense,构成:,助动词have/has+过去分词,1.肯定句 现在完成时的肯定句式是“have（has）过去分词”。注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。,eg.He has eaten supper.,They have eaten supper.,2.疑问句现在完成时的一般疑问句式是把助动词have或has提到主语之前。(回答用“Yes，-have/has“No，-havent/hasnt”）3.否定句：现在完成时的否定句式是“havent/hasnt

2、过去分词”。,eg.Has he eaten supper?,Yes,he has./No,he hasnt.,eg.He hasnt eaten supper.,They havent eaten supper.,用法一、表示过去发生的动作或存在的状态对现在造成的影响或产生的结果。常跟already,just,notyet,never,before,ever,recently，-times等时间状语连用。注：already与just用于肯定句，在否定句和疑问句中要变为yeteg.,现在完成时态的分类,eg.1.He had his breakfast at 6:00 He has had h

3、is breakfast.,只是说他六点的时候进行了吃饭这个动作，但不对现在产生影响,这说明他现在已经饱了，不饿了。,When、what time永远不能与现在完成时态连用,2.Has he had his breakfast?Yes,he has.When did he have his breakfast?He had breakfast at 6:00.,Exercises,1.I _(have)lunch already.2.the train_(arrive)yet?3.Tom _ never_(be)to China.4.The twin _just _(see)my father

4、.5.The twins _(see)my father just now.6._ you ever _(ride)a horse?Never.,have had,Has arrived,has,been,has,seen,saw,have ridden,write wrote written ride rode ridden,7._ you _(clean)the room?Yes,we_(do)that already.When _ you _(do)it?We _(do)it an hour ago.8._ he _(see)this film yet?No.When _ he _(se

5、e)it?He _ it tomorrow.9.How many times _you_(come)here?Once.,Have,cleaned,have done,did,do,did,Has,seen,will,see,will see,have,come,come came come become became become,用法二：for+一段时间since+过去时态的句子since+过去的时间点E.g.Kate has lived here for 3 years.Kate has lived here since 3 years ago.Kate has lived here s

6、ince she came to China.,表示过去某个时间开始的动作或存在的状态，一直持续到现在并可能还将持续下去。动词使用延续性动词。常与for或since引导的时间连用so far,up to/till now,in the last/past+一段时间，all ones life.,一段时间+ago具体的过去的时间点,常见非延续性动词和延续性动词的转变,第一类：动词 be+adj.die finish open/closefall ill/asleepmarry sb/get married to第二类：动词 be+介词.start/beginleavejoin,be dead,b

7、e away from,be in/be a member of,be open/closed,be on,be over,be ill/asleep,be married to,第三类：动词 另一个动词 buyborrowget/begin to延续性v.becomeput oneg.,keep,have,be,延续性v.,wear,His father died 2 years ago.The football match began at 9:00a.m.The twins joined the army when they were 18 years old.My teacher le

8、ft Nanjing 3 days ago.,His father has been dead for 2 years/since two years.,The football match has been on since 9:00 a.m.,The twins have been soldiers/in the army、members of the army since they were 18years old.,My teacher has been away from Nanjing for 3 days/since 3 days ago.,have/has gone tohav

9、e/has been to have/has been in,have/has gone to:已经去了或在途中，还没有返回；反正不在说话地!have/has been to:曾经去过某地，现在已经回来了,后面可接表示“次数”、ever、never、before等的状语;have/has been in:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。,用法三：,Exercises,Tom 在哪儿？他去书店了。我在北京待了5年了。Jack 去过上海两次了,-Where is Tom?-He has gone to the bookshop.,I have been in Beijing for 5 years.,Jack has been to Shanghai twice.,Goodbye,