现在完成时课件.pptx

1、 走进高考：Present Perfect Tense 现现 在在 完完 成成 时时123Wake up your memory of grammatical rules of tense.（掌握语法规则）Learning objectives:(教学目标)Learn to judge tense by time Adverbials（学会通过时间状语判断句子时态）learn how to make use of these tenses accurately and fluently through practice.（通过练习准确应用现在完成时态）一般一般进行进行完成完成完成进行完成进行现

2、在现在一般现在时一般现在时do/does现在进行时现在进行时am/is/are doing现在完成时现在完成时has/have done现在完成进行时现在完成进行时have/has been doing过去过去一般过去时一般过去时did过去进行时过去进行时was/were doing 过去完成时过去完成时had done过去完成进行时过去完成进行时had been doing 将来将来一般将来时一般将来时will do将来进行时将来进行时will be doing 将来完成时将来完成时will have done将来完成进行时将来完成进行时will have been doing 过去过去将来

3、将来过去将来时过去将来时would do过去将来进行时过去将来进行时would be doing过去将来完成过去将来完成时时would have done过去将来完成进行过去将来完成进行时时would have been doing 一构成：一构成：have/has+动词的过去分词（动词的过去分词（done)被动结构：被动结构：have/has been+动词的过去分词（动词的过去分词（done）动词过去分词变化规则动词过去分词变化规则：1.规则动词（其变化与过去式相同）：(1)一般动词，在词尾直接加“-ed”。e.g.work worked,visit visited,ask asked,w

4、ant wanted(2)以不发音的“e”结尾的动词，只在词尾加“d”。e.g.live lived,dance danced,love loved,change-changed(3)以“辅音字母+y”结尾的动词，将y变为i，再加“-ed”。e.g.studystudied,crycried,trytried,carry carried,fry fried(4)“重读闭音节”结尾，且末尾只有一个辅音字母，辅音字母前只有一个元音字母，先双写该辅音字母，再加“-ed”。e.g.stopstopped,planplanned,permit permitted,plan planned2.不规则动词：

5、be（am,is）（是）-was-been be（is）-were-beenbegin（开始）-began-begun drink（喝水）-drank-drunkring（响铃）-rang-rung sing（唱）-sang-sungknow（知道）-knew-known throw（投掷）-threw-thrownshow（出示）-showed-shown choose（选择）-chose-chosenforget（忘记）-forgot-forgotten(forgot)eat（吃）-ate-eaten speak（说，讲）-spoke-spoken drive（驾驶）-drove-driv

6、enfall（落下）-fell-fallen give（给）-gave-giventake（取）-took-taken write（写）-wrote writtendo（做）-did-done go（去）-went-gonelie（平躺）-lay-lain see（看见）-saw-seenwear（穿）-wore-worn cost（花费）-cost-cost cut（割）-cut-cut hit（打）-hit-hithurt（伤害）-hurt-hurt let（让）-let-letput（放）-put-put read（读）-read-readrise（升起）-rose-risen aris

7、e（出现、上升）-arose-arisen一构成：have/has+动词的过去分词（done)被动结构：have/has been+动词的过去分词（done）二现在完成时的基本用法：1.表示过去发生的事或刚结束的动作对现在仍有影响或造成的结果。e.g.He has turned off the light.他已把灯关了。过去现在（影响/结果）练习：He _(join)the army.他参军了。I _(clean)my room.我清理了我的房间。I_(visit)the Great Wall.我参观过长城。e.g.I have lost my new bike.我把新自行车丢了。(现在还未找

8、到)2.表示过去开始的动作一直延续到现在(句中用延续性动词)e.g.He has lived here since 1995.自从1995年以来，他一直住在这儿。e.g.It has rained for three hours.下了3小时雨了。练习：He_(work)there for three years.他在那里工作已 3 年了。I_(study)English since I was ten years old.我从10岁开始学英语。一般现在时一般现在时一般过去时一般过去时现在完成时现在完成时一般将来时一般将来时一般过去时一般过去时过去将来时过去将来时过去进行时过去进行时现在完成进行

9、时现在完成进行时We always tell the We always tell the tense of a sentence by tense of a sentence by itsits Time AdverbialsTime Adverbials （时间状语）（时间状语）7.现在完成时现在完成时常常用的时间状语：用的时间状语：already,ever,never,yet,lately,recently,before,just(而just now用一般过去时)for+时间段（e.g.for 3 days/for 5 years）since+时间点/过去时从句（e.g.since 20

10、02/since 2012 ）ever sinceso farup to now/till now/by now by this timein the past/last+时间段（e.g.in the past 10 years）these days,all these yearsin recent yearsover the past ten yearsseveral times1.（2016福建）福建）So far this year we _(see)a fall in house price by between 5 and 10 percent.2.（2018全国）全国）Since

11、2011,the country _ (grow)more corn than rice.3.With the rapid growth of population,the city_(change)in the past five years.4.You dont need to describe her,I_(meet)her several times.高考题回顾have seen has grownhas changedhave met注意一：非延续性动词不能用于“现在完成时+段时间”的句型中。这些动词有：come,go,start,leave,become,die,buy,finis

12、h,join,borrow,teach,lose,fall,stop,arrive,join,die等。但它们能够用表示持续状态的相应的延续性动词替换句中的非延续性性动词。如：arrive,come be here,be in buy have begin,start be on die be dead go out be out fall asleep be asleepborrow keep finish,end be overclose be closed leave,move be away练习：1.He _ a car for three years.他这辆车买了三年了。2.He _

13、 for one minute.他已经离开一分钟了。注意二：注意二：have been to；have/has gone to和和has been in/at的区别：的区别：has gone to：去某地了（去了没回）（不与 for+一段时间连用）has been to：去过某地（去过已回来）（不与 for+一段时间 连用）has been in/at（in+大地点；at+小地点）：表示一直呆在某地（待了很久）（常与段时间连用）。e.g.She_ Beijing.(她去北京了未回)She_Beijing.（她去过北京回了）She_ Beijing for ten years.(她待在北京10年

14、了。)This/It is the+序数词+time(that)sb.has/have done这是某人第几次做某事这是某人第几次做某事。（翻译）这是我第一次参观万里长城。（翻译）这是我第一次参观万里长城。This/It is the first time(that)I have visited Beijing.自从做某事以来至今已经有多久了自从做某事以来至今已经有多久了。It has been+时间段+since+过去时 瞬间动词（翻译）自从我离开北京已经有十年了。（翻译）自从我离开北京已经有十年了。It has been 10 years since I left Beijing.这是现在

15、已经做过的最这是现在已经做过的最的。的。It/This is the+最高级最高级+名词名词+(that)has/have done(翻译翻译)这是我见过的最美丽的城市。这是我见过的最美丽的城市。It/This is the most beautiful city I have ever seen.Homework:1.My sister _ her pen.A.lose B.is losing C.has lost D.will lose2.He _(have)this book for two months.3.I_ never _ Paris.我从未到过巴黎。A.have;gone to B.have;been to C.have;been in4.I _ him for five years.A.havent seen B.dont see C.isnt seeing D.wont see 5.(改错)The boy lived here since 1991.