四种进行时态.ppt
四种进行时态学习点拨：我们前面所学的四种时态，表达的只是时间概念。本课所学的进行时态除时间概念外，又加入了某种感情色彩。我们可以形象地比喻：使用一般时态像听录音机，使用进行时态则像看电视机，而后者所具备的功能正是画面，这恰恰是一般时态和进行时态的不同之处。此外，进行时态给我们的是一种暂时性。理解以上两点是非常重要。一、进行时态的构成时态主谓宾现在进行时态过去进行时态将来进行时态过去将来进行时态is(am,are)doingwas(were)doingwill be doingwould be doing二、现在进行时态和过去进行时态(1).Who are you waiting for?你在等谁呢？(2).She is having dinner in the restaurant.她正在饭馆吃饭。(3).He was studying English in the library yesterday evening.昨天晚上他在图书馆学英语。1.表示动作的进行。表示动作的进行。2.进行时态的暂时性进行时态与一般时态的比较(1)They live in America.（一贯的）(2)They are living in America.（暂时的）(3)My TV works perfectly.我的电视非常好（一贯的）(4)My TV is working perfectly.我的电视目前很好。（暂时的）第二句给人的印象是：电视过去工作不正常，最近修了一下，效果很好。第二句给我们的感觉是，他们一直住在别的什么地方，但目前暂住美国。3.进行时态的感情色彩。进行时态除了一个进行的动作以外，更多的是带有一种“态”，也就是说一种情态在里面。试着比较下面的两个句子：(1)More and more people buy TV sets.(2)More and more people are buying TV sets.第一个句子只是说出一个现象，第二句却给了一个生动的画面，试图让我们看到人们购买电视机的情景。进行时态与一般时态的比较(1)My wife always watches TV in the evening.（说明事实）(2)My wife is always watching TV in the evening.（表示不满）(3)He does fine work at school.（说明事实）(4)He is doing fine work at school.（表示赞扬）进行时态给我们一种画面感，一种情感的流露，具体是赞扬，不满，还是想刺激听话的人要具体情况具体分析。关于进行时态需要注意的问题非持续性动词的进行时态形式表示将来时态。(1)His father is dying.她的父亲要死了。(2)The spring is coming.春天要来了。可以这样用的动词还有：come,go,leave,arrive,take off,start等表示位置移动的动词单项选择1.The last time I _ Jane,she _ cotton in the field.A.had seen was picking B.saw pickedB.C.had seen picked D.saw was pickingC.2.We were all surprised when he made it clear that he _office soon.D.A.leaves B.would leave C.left D.had leftE.3.I dont think Jim saw me;he _into space.F.A.Just stared B.was just staringG.C.has just stared D.had just stared4.Is this raincoat yours?-No,mine _there behind the door.A.Is hanging B.has hungC.Hangs D.hung5.Alice,why didnt you come yesterday?-I _,but I had an unexpected visitor.A.had B.would C.was going to D.did6.I first met Lisa three years ago.She _ at a radio shop at that time.A.has worked B.was working C.had been working D.had worked7.-Can I help you,sir?-Yes.I bought this radio here yesterday,but it _.A.didnt work B.wont workC.cant work D.isnt working8.I dont really work here;I _ until the new secretary arrives.A.just help out B.have just helped outC.am just helping out D.will just help out用所给的动词的适当时态填空，并根据前面所学的知识说出为什么。Sometimes two or three pickpockets _(work)together.For example,you _(walk)down the street oneafternoon.Two people walking together in front of you suddenly _(stop)and _(bend)over.You almost _(fall)over them.A third pickpocket,who _(be)behind you,_(take)advantage of the confusion（趁混乱）.He _(steal)your wallet from the back of your trousersworkare walkingstopbendfallistakessteals
