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(1)一般现在时 ①表示客观事实或普通真理(不受时态限制)

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Presentation on theme: "(1)一般现在时 ①表示客观事实或普通真理(不受时态限制)"— Presentation transcript:

1 (1)一般现在时 ①表示客观事实或普通真理(不受时态限制)
The geography teacher told us the earth moves around the sun. Water boils at 100oC. ②表示现状、性质、状态时多用系动词或状态动词;表示经常或习惯性的动作,多用动作动词,且常与表频率的时间状语连用。 Ice feels cold. We always care for each other and help each other. ③表示知觉、态度、感情、某种抽象的关系或概念的词常用一般现在时:see、hear、smell、taste、feel、notice、agree、believe、like、hate、want、think、belong seem等。如: I know what you mean. Smith owns a car and a house. All the students here belong to No.1 Middle School.

2 ④在时间、条件状语从句中常用一般现在时代替将来时。但要注意由if 引导的条件状语从句中可以用shall或will表“意愿”,但不表示时态。
If you will accept my invitation and come to our party, my family will be pleased.如果你愿意接受并参加我们的舞会,我的家人会非常高兴。 ⑤少数用于表示起止的动词如come、go、leave、arrive、fly、return、start、begin、pen、close、end、stop等常用一般现在时代替将来时,表示一个按规定、计划或安排要发生的动作。当be表示根据时间或事先安排,肯定会出现的状态,只用一般现在时。 The shop closes at 11:00 p.m. every day. Tomorrow is Wednesday.

3 (2)一般过去时 ①一般过去时的基本用法:表示过去的事情、动作或状态常与表示过去具体的时间状语连用(或有上下文语境暗示);用于表达过去的习惯;表示说话人原来没有料到、想到或希望的事通常用过去式。如: I met her in the street yesterday. I once saw the famous star here. They never drank wine. I thought the film would be interesting, but it isn’t. ②如果从句中有一个过去的时间状语,尽管从句中的动作先于主句发生,但从句中的谓语动词连用过去式。如: He told me he read an interesting novel last night.

4 ③表示两个紧接着发生的动作,常由以下词语连接,用一般过去时。如:but, and, when, as soon as, immediately, the moment, the minute。
The moment she came in, she told me what had happened to her. He bought a watch but lost it. ④常用一般过去时的句型: Why didn’t you / I think of that? I didn’t notice it. I forgot to tell you I had been there with my brother before. I didn’t recognize him.

5 (3)一般将来时 ①表示未来的动作或状态常用will / shall + 动词(常与表示将来的时间状语边用如tomorrow、next week等)。 ②表示一种趋向或习惯动作。 We’ll die without air or water. ③表示趋向行为的动词如come、go、start、begin、leave等词常用进行时的形式表示将来时。 ④be going to与will / shall, be to do, be about to do用法及区别: be going to 表示现在打算在最近或将来要做某事,这种打算往往经过事先考虑,甚至已做了某种准备; shall / will do表示未事先考虑过,即说话时临时作出的决定。

6 * be going to 表将来,不能用在条件状语从句的主句中;而will则能,表意愿。如:
If it is fine, we’ll go fishing.(正确) If it is fine, we are going to go fishing.(错误) * be to do sth.表按计划、安排即将发生的动作,还可表示吩咐、命令、禁止,可能性等。 A meeting is to be held at 3:00 o’clock this afternoon. * be about to do sth.表示“即可,就要”,后面不能接时间状语或状语从句。 Autumn harvest is about to start.

7 (4)现在进行时 ①表示说话时正在发生着的一个动作;表示现阶段但不一定是发生在讲话时;表近期特定的安排或计划;go、come等起止动作可用进行时代替将来时。如: It is raining now. He is teaching English and learning Chinese. I am meeting Mr. Wang tonight. We are leaving on Friday. At six I am bathing the baby.(I start bathing the baby before six.) The girl is always talking loud in public.(与always、often等频度副词连用,表经常反复的行动或某种感情色彩)

8 (5)过去完成时 ①常用过去完成时的几种情况:
(A)在by、by the end、by the time、until、before、since后接表示过去某一时间的短语或从句以前发生的动作。 如:By the end of last year, we had produced 20,000 cars. The train had left before we reached the station. (B)表示曾实现的希望、打算、意图、诺言等。常用had hoped / planned / meant / intended/though / wanted / expected等或用上述动词过去式接不定式完成式表示即:hoped / planned … + to have done。 (C)“时间名词 + before”在句子中作状语,谓语动词用过去完成时;“时间名词 + ago”在句中作状语,谓语动词用一般过去式。 如:He said his first teacher had died at least 10 years before Xiao Hua left school 3 years ago.

9 (D)表示“一……就”的几个句型:Hardly / No sooner / Scarcely had + 主语 + 过去分词 + when / than / before + 一般过去时。
如:We had no sooner been seated than the bus started. = No sooner had we been seated than the bus started. ②在before或after引导的时间状语从句中用一般过去时态代替过去完成时。 After he (had)left the room, the boss came in. We arrived home before it snowed.

10 (6)过去将来时 7)过去进行时 参照一般将来时对比: would do、was / were going to do sth.表过去将来;
come、go、leave等过去进行时表过去将来时; was / were to do sth.和was / were about to do sth.表过去将来。 7)过去进行时 ①过去某一时刻正在进行的动作或某一阶段内发生或频繁发生。 ②某一动作发生时另一动作正在发生,其中一个在由when或while引导的时间状语从句中。

11 (8)现在完成时 ①现在完成时除可以和for、since引导的状语连用外,还可以和下面的介词短语连用:during / in /over the last(past)few years (months, weeks)、in recent years等。 ②下列句型中常用现在完成时 It is (has been) + 一段时间 + since从句 This(That / It)is the first(second…)time that + 完成时 This(That / It)is the only … + that + 完成时 This(that / It)is the best / finest / most interesting … + that 从句 + 完成时 ③在时间或条件状语从句中,现在完成时可以代替一般将来时。如: I shall post the letter as soon as I have written it. If you have done the experiment, you will realize the theory better. Don’t get off the bus until it has stopped.

12 (9)注意几组时态的区别: 1. 一般过去时与现在完成时:
时间上有差异:凡有过去时间的均用过去时态,不能用完成时态,如含有ago、last year、just now、the other day等。 结果上有差异:现在完成时强调的是对“现在”的影响和结果,动作到现在刚完成或还在继续;一般过去时强调的是动作发生在“过去”,和现在毫无关系。

13 1. --- Where __you __ (put) the book? I can’t see it anywhere.
--- I ___(put) it right here. But now it’s gone. A. did ; put; put B. have; put; put C. did; put; have put D. have; put; have put 2. We haven’t heard from Jane for a long time. What do you suppose _______ to her? A. was happening B. happens C. has happened D. happened 3. Hello, I ____ you were in London. How long _________ here? A. don’t know; were you B. hadn’t known; are you C. haven’t known; are D. didn’t know; have you been 4. I’m glad to tell you that we _____ the work in less time than we _____ expected to. A. finished; were B. have finished; are C. have finished; were D. had finished; were 5. When I was at college I _______ three foreign language but I ________ all except a few words of each. A. spoke; had forgotten B. spoke; have forgotten C. had spoken; had forgotten C. had spoken; have forgotten

14 2. 现在完成时与现在完成进行时 Hi, Tracy, you look tired. “ --- I am tired. I _______ the living room all day. A. painted B. had painted C. have been painting D. have painted Have you had any letters from him? --- No, I haven’t, but my wife _______ him regularly . A. has heard from B. has been hearing from C. had heard from D. hears

15 3. 现在进行时和过去进行时 1. I don’t really work here. I ____ until the new secretary _______. A. just help out; comes B. have just helped out; will come C. am just helping out; comes D. will just help out; has come When shall we leave? --- As soon as I ______ what I _______. A. will finish; do B. have finished, am doing C. finish, will do D. finish, do 3. At that time he _____ in the library. A. worked B. had worked C. was working D. would work 4. The students ____ busily when Miss Brown went to get a book she____in the office. A. were working; had left B. worked; left C. had worked; left D. were working; would leave Hey, look where you are going! --- Oh, I’m terribly sorry. _______. A. I’m not noticing. B. I wasn’t noticing. C. I haven’t noticed D. I don’t notice. E. I didn’t notice. F. I won’t notice

16 4. 一般过去时和过去进行时 1. He ______ a book about China last year, but I don’t know if he ______ it. A. wrote; has finished B. was writing; has finished C. was writing; had finished D. wrote; will finish 2. Tom ­________ into the house when no one ___________. A. slipped; was noticing B. had slipped; noticed C. slipped; had noticed D. was slipping; noticed 3. As she ________ the newspaper, Granny _________ asleep. A. read; was falling B. was reading; fell C. was reading; was falling D. read; fell 4. The last time I _________ Jane she __________ cotton in the fields. A. had seen; was picking B. saw; picked C. had seen; picked D. saw; was picking

17 2、被动语态考查要点简述 被动语态的构成方式:be + 过去分词,口语只也有用get / become + 过去分词表示。被动语态的基本用法:不知道或没必要提到动作的执行者是谁时用被动语态。强调或突出动作的承受者常用被动语态(by短语有时可以省略)。 (1)使用被动语态时应注意的几个问题。 ①主动变化被动时双宾语的变化。看下列例句。 My friend gave me an interesting book on my birthday. An interesting book was given to me(by my friend)on my birthday. I was given an interesting book (by my friend)on my birthday.

18 ②主动变被动时,宾补成主补(位置不变);(作补语的)不定式前需加to。
The boss made him work all day long. He was made to work all day long(by the boss) ③短语动词变被动语态时,勿要掉“尾巴”。 The children were taken good care of (by her). Your pronunciation and spelling should be paid attention to. ④情态动词和be going to、be to、be sure to、used to、have to、had better等结构变被动语态,只需将它们后面的动词原形变为be +过去分词。

19 ⑤当句子的谓语为say、believe、expect、think、know、write、consider、report等时,被动语态有两种形式:
(B)用it作形式主语,真正的主语在后面用主语在后面用主语从句来表示。如: People say he is a smart boy. It is said that he is a smart boy. He is said to be a smart boy. People know paper was made in China first. It is known that paper was made in China first. Paper was known to be made in China first. 类似句型有:It is said / known / suggested / believed / hoped/ thought that …

20 (2)不能用被动语态的几种情况。 ①所有的不及物动词或不及物动词词组不能用于被动语态之中。 ②表示状态的谓语动词,如:last、hold、benefit、contain、equal、fit、join、mean、last、look like、consist to等。 ③表示归属的动词,如have、own、belong to等。 ④表示“希望、意图”的动词,如:wish、want、hope、like、love、hate等。 ⑤宾语是反身代词或相互代词时谓语动词用主动语态,不能用被动语态。 ⑥宾语是同源宾语,不定式、动名词等谓语动词不用被动语态。 ⑦有些动词以其主动形式表示被动意义,特别是当主语是物时,常见的动词有sell、write、wash、open、lock等。

21 3)主动形式表被动意义。 ①当feel、look、smell、taste、sound等后面接形容词时;当cut、read、sell、wear、write等词带状语修饰语时;当动词表示“开始、结束、关、停、转、启动”等意义时。 This kind of cloth washes easily.这种布易洗。 These novels won’t sell well.这些小说不畅销。 My pen writes smoothly.我的钢笔写起来很流畅。 The door won’t lock.门锁不上。 The fish smells good.鱼闻起来香。 ②当break out、take place、shut off、turn off、work out等动词表示“发生、关闭、制定”等意思时。 The plan worked out successfully. The lamps on the wall turn off.

22 ③want, require, need后面的动名词用主动表示被动含义。
④be worth doing用主动形式表示被动含义。 ⑤在“be + 形容词 + to do”中,不定式的逻辑宾语是句子的主语,用主动代被动。 This kind of water isn’t fit to drink. The girl isn’t easy to get along with. 另外:be to blame(受谴责),be to rent(出租)也用主动形式表被动。

23 (4)被动形式表示主动意义的几种情况。 ①be seated坐着 He is seated on a bench.(He seats himself on a bench.)坐在凳子上。 ②be hidden躲藏 He was hidden behind the door.(He hid himself behind the door.)他藏在门后。 ③be lost迷路 ④be drunk喝醉 ⑤be dressed穿着 The girl was dressed in a red short skirt.

24 (5)被动语态与系表结构的区别 被动语态强调动作;系表结构表主语的特点或状态。如: The book was sold by a certain bookstore.(被动语态) The book is well sold (系表结构)


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