课文中出现的几个重要时态1现在完成时.ppt

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1、课文中出现的几个重要时态: .现在完成时: Language points Over time I have been changed quite a lot. I have been used in offices and homes since the 1970s. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told! Since the 1970s many new applications have been found fo

2、r me. 归纳:现在完成时常与下列时间状语连用 over time (经过一段时间) since +过去时间(自以来) for +时间段 练习:他们已经结婚年了 They have been married for 3 years. 我于两个小时前买了那只笔 I have had the pen for 2 hours. My brother joined the army two years ago. My brother _ _ in _ _ for two years Shes _(live) here ever since she was ten. has been the army

3、 lived 现在完成时的注重事项: 1. 现在完成时有非延续性用法(即表示过 去的动作对现在的影响)及延续性用法 (即表示一个从过去开始延续到现在的 动作),而瞬间动词不能用于延续性用 法,必须将瞬间动词换成延续性动词 例如: 2. Her parents have died for ten years. 3. Her parents have been dead for ten years. 错误 现在完成时的注重事项: 2. 现在完成时态不可与yesterday, last week, two days ago等表示过去的时间状语 连用 I read this book last mon

4、th. Have you ever picked flowers or stepped on the grass in a park? .一般过去时: At that time it was considered a technological revolution From then on, I grew rapidly both in size and in brainpower. 归纳:课文中与一般过去时连用的时间状 语 at that time “在那时” from then on “从那时起” 课文中出现的几个重要时态: .过去完成时: By the 1940s I had grow

5、n as large as a room, and I wondered if 归纳:课文中与一般过去时连用的时间状 语 by+过去时间 “到时间” by the end of +过去时间 “到未” 1. I began as a calculating machine in France in 1642. as 在本句中意为“作为”,用作介词 2. As time went by, I was made smaller. as 在本句中意为“随着”,用作连词 3. By the 1940s I had grown as large as a room as 在本句中意为“同样地”,用作副词

6、1. as部分用法小结: ) as作副词,表示程度,意为“同样地”。 在“asas”,“not asas ”结构中的第一个as是副词,作“和与 (不)一样”解。 ) as作介词。 1) 作“如,像”解。2) 作“充当,作为”解。 他们团结得像一个人一样。 They got united as one man. 作为作家,他是很有名的。 As a writer,he was famous 3) 引导时间状语从句,作“当的时候” 解,有“随着”之意,与while意义相近 ,强调两个动作同时发生;或某事一发生, 另一事立即发生。 他一边往前跑,一边高声地呼喊。 He shouted aloud as

7、 he ran along 2. 注意一些被动语态的特殊形式: At that time it was considered a technological revolution In 1936 my real father how I could be made to work as a consider A (to be/ as) B “将A看作B” make sb. do sth. “迫使某人做” A be considered (to be/as) B “A被看作B” sb. be made to do sth. “某人被迫做” 他被认为是班上最好的学生 He is considere

8、d to be the best student in the class. 工人们过去被迫每天工作小时 The workers were made to work 12 hours a day in the past. 3. And my memory became so large that even I couldnt believe it! 句型:so that 如此以致于 与 tooto 句型的相互转换 And my memory became too large for me to believe it. eg He is so old that he cant carry the

9、 box. He is too old to carry the box. 此结构中的that从句表示结果。 The stone is so heavy that no one can lift it. 比较: so that 既可以表结果,也可以表目的 。 He gets up early so that he can catch the first bus. (目的) Nothing more was heard from him so that we began to wonder if he was dead. (结果) 4. , until in the early 1960s th

10、ey gave me a family connected by a network. 这里是过去分词充当后置定语,修饰a family,因此相当于一个定语从句: that was connected by a network. 1.在网上购买的日常用品的价格比在商店买的要低 Prices of daily goods_(buy) through a computer can be lower than store prices. 2.穿白色衣服的学生是我的女儿。 The student _(dress) is my daughter. bought dressed in white 课文内容

11、复习小结: Para 1 : Although I was young I could simplify difficult _ (sum). it took nearly two hundred years _ I was built as an analytical machine After I _ (program) by an operator _ used cards with holes. Alan Turing, wrote a book about _ I could be made to work as a “universal machine”_ (solve) any

12、difficult mathematical problem. sums before programmed who how to solve 课文内容复习小结: 5. By the 1940s I _ (grow) as large as a room, and I wondered _ I would grow any larger. Para 2: 6. First it was stored in tubes, _ on transistors and later on very small chips. 7. As a result I _ (total) changed my sh

13、ape. 8. As I have grown older I have also grown _(small). 9. And my memory became _ large that even I couldnt believe it! had grown if then totally smaller so 课文内容复习小结: 10. But I was always so lonely _ (stand) there by myself, 11. Until in the early 1960s they gave me a family _ (connect) by a netwo

14、rk. 12. I was able to share my knowledge with others _ the World Wide Web. standing connected through 5. make mobile phones as well as help with as well as 是英语中常用的连接词 :1. as well as 可 连接并列的单词或短语。这孩子既健康又活泼。 The child is lively as well as healthy. 2. as well as 连接两个谓语动词时,它们的时态应 保持一致。他的书是他自己印刷出版的。 He p

15、ublishes as well as _(print) his own books.我们在粉刷墙壁同时也在修理屋顶。 We are repairing the roof as well as _ (paint) the walls. 3. 如果as well as 前面是动词不定式,那么其后的 动词也是不定式,但to要省略。 你不可能叫她既照顾孩子又做家务。 You cannot expect her to do the housework as well as look after the children. prints painting 3.如果as well as 前面是动词不定式,

16、那么其后的动 词也是不定式,但to要省略。例如: 你不可能叫她既照顾孩子又做家务。 You cannot expect her to do the housework _. 4. 由as well as 连接的复合主语并不影响谓语动词 的数。例如: 不仅他们愿意帮助你,我也愿意帮 助你。 I as well as they _. am ready to help you as well as look after the children She sings as well as playing the piano. 6. I am now truly filled with happines

17、s that I am a devoted friend and helper of the human race! 分析:that引导同位语从句,具体说明 happiness的内容。that是连词,在从句 中不充当任何成分。英语中用that引导 同位语从句的情况比较常见,但有时也 可以用连接副(代)词 how, when, where, whether等来引导同位语从句。注意:if, which 不能引导同位语从句。 如: I had the impression that she chose her words with care. 在我的印象中,她选词很小心。 I heard the n

18、ews that our team had won. 我听到了我们队获胜的消息。 l have no idea when he will be back. 我不知道他什么时候回来。 He must answer the question whether he agrees to it or not. 他必须回答他是否同意这样一个问题。 归纳:that引导同位语从句的特点 . 从句有先行词,而且先行词为抽象 名词,如: fact, idea, news, promise等 从句用以说明或解释前面的名词 . that引导同位语从句,充当连词; 不充当成分,也不能省略 V. 根据括号内所给的提示将下

19、列句子翻 译成英语。 1. 在朋友们的帮助下,他终于解决了问题 。(solve) 2. 她从那时起就知道自己会获胜。( from . on) With the help of his friends, he finally solved the problem. From then on she knew she would win. 3. 结果,他只得离开。(as a result) 4. 1923年他们考查了这片沙漠地区。 (explore) They explored this desert region in 1923. As a result, he had to leave. Lo

20、ok up the words below: in common, as a result, anyhow, so.that, in a way, watch over. Finish the Ex2 and Ex3 in Learning about Language on page20. Homework keyboard mousemodem scanner printerspeaker CPUhard disc CD / DVD-ROM CRT monitorLCD monitor chips /motherboard floppy discUSB flash disc CD/DVD/

21、VCDMP3 player 单词词法练习: I. 用括号内所给词的适当形式填空。 1. Try to _ (simple) your explanation for the students to help them understand better. 2. If you want to know about the hotel, you can call the _ (operate) to find out the information. simplify operator 3. The boy is very clever and he shows high _ (intellige

22、nt) in study. 4. _ (real) is not the way you wish things to be but the way they actually are. 5. Bob is _ (total) different from his father, who is very tall. 6. They agreed to accept my _ (apply) for joining their team. intelligence Reality totally application 7. His success in business brought _ (

23、happy) to his parents. 8. We will make a _ (person) visit to the students home. 9. His speech is _ (logical) organized and sounds great. 10. I disagree that the age of _ (technology) revolution has ended. happiness personal logically technological II. 每空填一词,使该句与所给句子的意 思相同。 1. I always do the housewo

24、rk and I also look after the children. I always do the housework _ _ _ look after the children. 2. Since that day, we have become very good friends. _ that day _, we have become very good friends. as well as on From 3. Because the flood is so serious, two thirds of the buildings in the area need repairing. The flood is so serious. _ _ _, two thirds of the buildings in the area need repairing. 4. She is too upset to calm herself down. She is _ upset _ she cant calm herself down. 5. She has changed her character completely. She has _ changed her character. As a result sothat totally

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