时态语态.ppt
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1、高三英语语法高三英语语法动词的时态动词的时态一般时态一般时态进行时态进行时态完成时态完成时态完成进行时态完成进行时态现现在在writewritewriteswritesam/is/ are am/is/ are +writing+writinghave/has have/has +written+writtenhave/has + have/has + been writingbeen writing过过去去wrotewrotewas/were was/were +writing+writinghad + writtenhad + writtenhad + been had + been wr
2、itingwriting将将来来shall/will shall/will +write+writeshall/willshall/will+ be + be writingwritingshall/will shall/will +have written+have writtenshall/will + shall/will + have been have been writingwriting过过去去将将来来shouldshould/would /would +write+writeshould/should/would + would + be be writingwritingsh
3、ould/wouldshould/would+ have + have writtenwrittenshould/would should/would +have been +have been writingwriting一、概说:英语一共有十六个时态(一、概说:英语一共有十六个时态(8 8种基本时态种基本时态 +8+8种合种合成时态)各个时态的构成法归纳如下成时态)各个时态的构成法归纳如下: :(以(以”write”write”为例)为例)二、易错点讲解二、易错点讲解1 1、一般现在时一般现在时用法注意点用法注意点: :(1)(1)表示经常发生、习惯性的动作表示经常发生、习惯性的动作, ,
4、与与 every day, usually, every day, usually, once a week once a week 等时间状语连用等时间状语连用 他每天骑自行车上学。他每天骑自行车上学。 He cycles to school every day.He cycles to school every day.(2)(2)现在的特征或状态(通常用于静态动词)如:现在的特征或状态(通常用于静态动词)如:belong belong to, cost, matter, own, think etc.to, cost, matter, own, think etc. He loves s
5、ports. He loves sports. - -DoDo you you singsing? ? A little.A little.(3)(3)表示客观事实、客观规律和客观真理表示客观事实、客观规律和客观真理He He said said that the earth that the earth turnsturns round the sun. round the sun.二、易错点讲解二、易错点讲解1 1、一般现在时一般现在时用法注意点用法注意点: :(4)(4)在在 when, until, before, if when, until, before, if 等引导的时间状语
6、、条件状语等引导的时间状语、条件状语从句,主句用将来时态,从句用从句,主句用将来时态,从句用现在时态现在时态表将来表将来( (一般一般现在时,现在进行时,现在完成时现在时,现在进行时,现在完成时) )。Do let me know when he _(come) back.Do let me know when he _(come) back.Do you know when he _ (come) back?Do you know when he _ (come) back?I wonder if he _ ( come) back tonight.I wonder if he _ ( co
7、me) back tonight.Ill give you an answer immediately Ill give you an answer immediately _reading. _reading. will comewill come comesIve finished2. 2. 现在进行时现在进行时的用法注意点的用法注意点(1)(1)现在进行时与一般现在时的用法比较。现在进行时与一般现在时的用法比较。现在进行时既可现在进行时既可表示现在时刻正在进行的动作,也可表示现在时刻正在进行的动作,也可表示现阶段一直进行表示现阶段一直进行的动作的动作(说话时不一定正在进行),(说话时不一
8、定正在进行), 强调动作的强调动作的暂时性暂时性和和未完成性未完成性短暂的事实短暂的事实;而一般现在时强调动作的长久;而一般现在时强调动作的长久性或反复性。性或反复性。He works in a chemical factory. (He works in a chemical factory. (长久性工作)长久性工作)He is working in a chemical factory these days. (He is working in a chemical factory these days. (临时性工临时性工作作) ) I _here, _until the secret
9、ary I _here, _until the secretary comes es back. (2) (2) 现在进行时与现在进行时与always, constantly, continually, all the always, constantly, continually, all the time, all along, time, all along, 等频度状语连用,对现阶段经常发生的动等频度状语连用,对现阶段经常发生的动作表示某种感情色彩,如赞叹、惊讶、厌烦、不满等。作表示某种感情色彩,如赞叹、惊讶、厌烦、不满等。She is always borrowing money a
10、nd forgetting to pay me She is always borrowing money and forgetting to pay me back.back.You are continually finding faults with me.You are continually finding faults with me. dont work Im just helping(3) (3) 现在进行时用于时间或条件状语从句中,可代替将来现在进行时用于时间或条件状语从句中,可代替将来进行时进行时When you are talking with him, take car
11、e not to mention When you are talking with him, take care not to mention this.this.Ill think about it while youre writing the report.Ill think about it while youre writing the report.If you are standing at the corner, Ill give you a lift into If you are standing at the corner, Ill give you a lift in
12、to town.town.3 3、现在完成时现在完成时用法注意点。用法注意点。(1)(1)两种意义的现在完成时两种意义的现在完成时 a. a.持续到现在(动词要用延续性动词);持续到现在(动词要用延续性动词); 时间状语:表示从过去延续到现在并包括现在在内的一时间状语:表示从过去延续到现在并包括现在在内的一 段时间状语段时间状语 today, recentlytoday, recently,up to nowup to now,so farso far, these these days, days, in/over/during the last/past ten in/over/durin
13、g the last/past ten days/months/yearsdays/months/years, etc., etc.Great changes have taken place in the past twenty years in Great changes have taken place in the past twenty years in China.China.b. b. 对现在有影响;对现在有影响;时间状语:时间状语: already, just, ever, never ,before, not yet, etc.already, just, ever, nev
14、er ,before, not yet, etc.Have you ever found out her telephone number?Have you ever found out her telephone number?(2) have been to (2) have been to VS VS have gone to have gone to(3) since (3) since I have done it since you left. I have done it since you left. It is three years since I saw you. It
15、is three years since I saw you. I have lived here ever since. I have lived here ever since.(4) I have left. (4) I have left. 但但I have been away for three days.I have been away for three days.(5) When have you done it? (5) When have you done it? 错错(6) It is the third time he has been late this week.(
16、6) It is the third time he has been late this week.(7) (7) 在含有时间状语或条件状语的复合句中,强调从句的在含有时间状语或条件状语的复合句中,强调从句的动作发生在主句动作之前,从句用现在完成时代替将来完动作发生在主句动作之前,从句用现在完成时代替将来完成时。成时。Ill go with you when I have had this cup of tea.Ill go with you when I have had this cup of tea.4 4、现在完成时现在完成时与与一般过去时一般过去时的用法比较的用法比较一般过去时只单
17、纯表示过去发生过的动作或存在的状态,一般过去时只单纯表示过去发生过的动作或存在的状态,与现在时间没有联系,可和与现在时间没有联系,可和表示确切过去表示确切过去的的时间、地时间、地点点状语连用。现在完成时表示过去发生过的某动作对状语连用。现在完成时表示过去发生过的某动作对现在造成的影响或结果,强调现在的情况,现在造成的影响或结果,强调现在的情况,不能不能和表和表示确切的过去时间、地点状语连用。示确切的过去时间、地点状语连用。(1)(1)She has promised to help me.She has promised to help me. Last weekLast week she p
18、romised to help me. she promised to help me.(2) He has been caught by the police.(2) He has been caught by the police. He was caught by the police He was caught by the police at a restaurant.at a restaurant.(3) Mr. Black has lived in China (3) Mr. Black has lived in China for ten years.for ten years
19、. Mr. Black lived in China Mr. Black lived in China for 3 years in the 1990s.for 3 years in the 1990s.5 5、现在完成时现在完成时与与现在完成进行时现在完成进行时的用法比较的用法比较 现在完成时表示动作已完成,侧重结果;现在完成进现在完成时表示动作已完成,侧重结果;现在完成进时既可表示动作在说话时刻之前刚刚结束,也可表示时既可表示动作在说话时刻之前刚刚结束,也可表示动作还将继续下去,侧重于动作的持续性、暂时性和动作还将继续下去,侧重于动作的持续性、暂时性和未完成的含义。未完成的含义。They
20、have repaired the road. (They have repaired the road. (表示路已修好表示路已修好) )They have been repairing the road. They have been repairing the road. (表示路还在修)(表示路还在修)The police have been looking into the matter, but they The police have been looking into the matter, but they havent drawn a conclusion yet. hav
21、ent drawn a conclusion yet. 有时两者可替换:有时两者可替换: Hes lived here for 10 years. Hes lived here for 10 years.(= Hes been living here for 10 years.)(= Hes been living here for 10 years.)But he_ here for 5 years in the 1990s.But he_ here for 5 years in the 1990s. lived6 6、一般过去时一般过去时与与过去进行时过去进行时的用法比较的用法比较(1)(
22、1)一般过去时表示在过去某时发生过的动作或存在的状态,一般过去时表示在过去某时发生过的动作或存在的状态,侧重动作已完成;侧重动作已完成; 而过去进行时而过去进行时 表示过去某个时间正表示过去某个时间正在进行的动作,在进行的动作,强调动作在持续,并未完成强调动作在持续,并未完成。 Last year, he_ a book.Last year, he_ a book. Last year, he _ a book, but hasnt Last year, he _ a book, but hasnt finished till now.finished till now.(2)(2)一般过去时
23、和过去进行时都可表示过去某段时间内发一般过去时和过去进行时都可表示过去某段时间内发生的动作或情况,但一般过去时只说明过去该段时间内生的动作或情况,但一般过去时只说明过去该段时间内发生过某事的事实;而过去进行时则侧重在动作持续时发生过某事的事实;而过去进行时则侧重在动作持续时间的长度,不仅是说明发生过某事。间的长度,不仅是说明发生过某事。 They built a new hotel last autumn.They built a new hotel last autumn. He was working all through the night. He was working all th
24、rough the night. was writing wrote(3) (3) 一般过去时和过去进行时同时出现在句中,表示一个一般过去时和过去进行时同时出现在句中,表示一个动作发生在另一个动作进行的过程之中时,动作发生在另一个动作进行的过程之中时, 通常表示通常表示较较短的动作用一般过去时,表示较长的动作用过去进行时。短的动作用一般过去时,表示较长的动作用过去进行时。 我跑下楼的时候滑倒了。我跑下楼的时候滑倒了。 She broke a glass while she was cooking the dinner I was running downstairs when I slippe
25、d and fell. 当她在做饭的时候打碎了一个玻璃杯当她在做饭的时候打碎了一个玻璃杯7. 7. 一般将来时的一般将来时的6 6种表达形式种表达形式(1)(1)“will/shall+will/shall+动词原形动词原形”:将要发生的动作或状况,也:将要发生的动作或状况,也可表示可表示“预见预见”(带有说话人的主观态度和看法)。(带有说话人的主观态度和看法)。 Will you be busy tonight?Will you be busy tonight? You will feel better after taking this medicine. You will feel be
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