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单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。本资料仅供参考，不能作为科学依据。谢谢。本资料仅供参考，不能作为科学依据。,十六种时态结题,By,豌豆,豌豆群：,6528224,1/13,一、现在完成进行时,1,现在完成进行时，是英语中，动词一个基本时态，其组成为：主语,+,助动词（,have/has,）,+been+,动词现在分词,+,其它成份。其表示意思有两种：,1.,表示从过去某时开始一直连续到现在动作，而且还将连续下去。,2.,表示在说话时刻之前到现在正在进行动作。,2,组成：主语,+have,（,has,）,been+,动词,-ing,表示从过去某时开始一直连续到现在动作，而且还将连续下去。,I have been learning English since three years ago.,2/13,表示在说话时刻之前到现在正在进行动作。,We have been waiting for you for half an hour.,有些现在完成进行时句子等同于现在完成时句子。,They have been living in this city for ten years.,They have lived in this city for ten years.,I have been working here for five years.,I have worked here for five years.,大多数现在完成进行时句子不等同于现在完成时句子。,I have been writing a book.,They have been building a bridge,They have built a bridge.,3/13,3,功用以下：,1,）表示一个在过去开始而在最近刚才结束行动，如：,Ann is very tired.She has been working hard.,Why are you clothes so dirty?What have you been doing?,2),表示一个从过去开始但仍在进行行动，如：,It has been raining for two hours.,Jack has been feeling very well recently.,3),表示一个从过去开始延续到现在，能够包含现在在内一个阶段内，重复发生行动，如：,She has been playing tennis since she was eight.,4/13,4),现在完成时强调动作行为结果、影响，而现在完成进行时只强调动作行为本身，如：,Toms hands are very dirty.He has been repairing the car.,The car is going again now.Tom has repaired it.,注意：现在完成时有否定结构、而现在完成进行时没有否定结构。,现在完成时态可表示做完时期以及已经有经验、但现在完成进行时不能够,5/13,二、过去完成时,1,定义：过去完成进行时与过去完成时使用方法很相近，它通常表示某个过去正在进行动作或状态，连续到过去某个时刻，还未完成，一直连续到之后当前才结束,2,组成：过去完成进行时是由,had been+,现在分词,组成。,She had been suffering from a bad cold when she took the exam.,Rafael was scolded even though he hadnt been doing anything wrong.,6/13,3,使用方法,表示过去某一时间之前一直进行动作。,I had been looking for it for days before I found it.,They had only been waiting for the bus a few moments when it came.,示重复动作。,He had been mentioning your name to me.,You had been giving me everything.,7/13,去完成进行时还惯用于间接引语中,The doctor asked what he had been eating.,过去完成进行时之后也可接含有“突然”之意,when,分句。,I had only been reading a few minutes when he came in.,Shed only been reviewing her lessons for a short while when her little sister interrupted her.,I had been sleeping when my friend telephone me.,8/13,三、未来完成进行时,1,定义：未来完成进行时表示动作从某一时间开始一直延续到未来某一时间。是否继续下去，要视上下文而定。这个时态常和表示未来某一时间状语连用。,2,结构：主语,+shall/will have been doing,I shall have been working here in this factory for twenty years by the end of the year.,If we dont hurry up,，,the store will have been closing before we get there.,The play is coming off in August.By then the play will have been running for three months.,9/13,四、过去未来完成进行时,1,定义：过去未来完成进行时表示动作从过去某一时间开始一直延续到过去未来某一时间。动作是否继续下去，视上下文而定。,2,结构：,should/would have been+v-ing,He said that by the end of the spring term he would have been studying English for three years,3,注意：在间接引语中，未来完成进行时通常要改为过去未来完成进行时。,I know by this time next week youll have been working here for 30 years.,I knew by that time he would have been working there for 30 years.,She will have been teaching in this university for 20 years by this summer.,She told me shed have been teaching in that university for 20 years by that summer.,10/13,五、过去未来完成时,1,含义：过去未来完成时表示在过去未来某一时间以前发生动作，并往往会对过去未来某一时间产生影响。,2,结构：,should/would have done sth.,I thought youd have left by this time.,He told them he would have finished it by 8 oclock.,I guessed that Helen would have told her something.,11/13,1I bought a new house,but I _ my old one yet,so at the moment I have two houses.,A)didnt sell,B)sold,C)havent sold,D)would sell,2Great as Newton was,many of his ideas _ today and are being modified by the work of scientists of our time.,A)are to challenge,C)have been challenged,B)may be challenged,D)are challenging,3It seems oil _ from this pipe for some time.Well have to take the machine apart to put it right.,A)had leaked,B)is leaking,C)leaked,D)has been leaking,4Until then,his family _ from him for six months.,A)didnt hear,C)hasnt heard,B)hasnt been hearing,D)hadnt heard,12/13,5I assure you that the matter _ as quickly as possible.Have a little patience.,A.will be attended B.will be attended to,C.is attended D.is attended to,6Greater efforts to increase agricultural production must be made if food shortage _ avoided.,A)is to be,B)can be,C)will be,D)has been,7The conference _ a full week by the time it ends.,A)must have lasted,B)will have lasted,C)would last,D)has lasted,13/13,
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