新概念英语第一册87 88课课件.ppt

Lesson 87 88 New Concept English,A car crash Have you had breakfast yet?,attendant,Is my car ready yet?,yet 一般时完成时的标志词 用于否定疑问句中 但是，有时也会用于现在时，表示“已经”,the number of.,the number of the car 车牌号,房间号 the number of the room 街道号 the number of the street,bring sth. to sb.,bring sth. to sb. bring sb. sth. 把某物带给某人 双宾语结构 bring your car to us bring us your car,他给我买了一些花 He bought me some flowers. He took some flowers to her.,They are still working on it.,still 现在进行时的标志 work on 从事，做某事,Isn't that your car? Can't you wait till afternoon? Aren't you lucky? 否定疑问句 希望得到肯定的答复,try,try to do sth. 尽力去做某事，努力想达到目的 try doing sth. 试着做某事，并不十分想做到 He tried to climb that tree. 他努力想爬上树 He tried climbing that tree. 他试着爬上树,语法———现在完成时,现在完成时由“have/has+过去分词”构成，主要有两个含义： ①表示动作发生在过去，但与现在的情况有联系，有时无时间状语，有时和一些表示不确定的过去时间状语连用，如：many times，just，yet，ever，never，already，before，so far, by now等连用。

②表示从过去某一时间开始一直延续到现在并还可能继续延续下去的动作，用于延续性动词，且句中常带有表示一段时间的时间状语，如：since + 时间点/从句，for two months, so far等1）现在完成时和一般过去时都能表示过去发生过的动作，但现在完成时表示过去动作对现在的影响，并且表示这一动作已完成或还可能继续下去； 2）而一般过去时与现在的情况没有联系，仅表示过去的动作，且这一动作到说话时已终止因此现在完成时不能与表示明确的过去时间如：in1949，yesterday，last week等的状语连用，并且用when或where对这些时间和地点状语提问时，一般只用一般过去时例句,I saw this film yesterday. （强调看的动作发生过了 I have seen this film. （强调对现在的影响，电影的内容已经知道了结构,肯定句：have/has +v.(过去分词） eg.I have already finished my homework . 否定句：have/has +not +v.(过去分词） eg.I haven't heard from him yet. 一般疑问句：Have/Has+主语+v.(过去分词） eg.Have you ever been to Beijing?,造句,l have played the piano . 我已经弹过钢琴了。

Have you had lunch yet? -Yes,I have. I've just had it. 你（已经）吃午饭了吗？ 我刚刚吃过现在我不饿了） We have already finished our homework. 我们已完成作业了 They haven't finished their homework yet. 他们还没有完成作业 Have you ever been to the Great Wall? 你曾经去过长城吗？ I have never been to the Great Wall. 我从未去过长城造句,今天你见过他吗？我 没有 我们（开始）学英语已三年了 她已经浇了花 他在北京住了 8 年.他读过了许多书,Have you met him today?-No,I haven't. We have studied English for three years. She has watered the flowers.He has lived in Beijing for 8 years He has read some books.,选择,He has _______ been to Shanghai， has he ？ A. already B.never C.ever D. still Zhao Lan ______already ______in this school for two years. A. was ； studying B. will ； study C. has ； studied D. are ； studying Zhao Lan ______already ______in this school for two years. A. was ； studying B. will ； study C. has ； studied D. are ； studying Harry Potter is a very nice film .I_______ it twice. A. will see B. have seen C. saw D.see,。