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1、When was it invented?,Unit 9,A: What is the _ used for? B: I think it is used for _ .,talking with people,A: What is the used for? B: I think it is used for _. (count),counting,A: What is the used for? B: I think it is used for _.(work),working,A: What is the used for? B: I think it is used for _.(r
2、ide),riding,A: What is the _ used for? B: It is used for _.,counting,(count),A: What is the used for? B: It is used for _.(count),counting,A: What is the _ used for? B: It is used for _ .,making the food hot.,(make the food hot),The passive voice,一、语态 英语中动词有主动语态和被动语态两种语态. 主动语态表示主语是动作的执行者,被动语态表示 主语是动
3、作的承受者,在被动语态中动作 的执行者 有时用by短语表示出来. 二、被动语态的构成 助动词be+及物动词的过去分词 am(is,are)+done 一般现在时 was(were)+done 一般过去时,三、被动语态的用法 1. 不知动作执行者时,常用被动语态. eg. My bike was stolen yesterday. This car is made in American. 2. 不必要说出动作执行者时,常用被动语态。 eg. Rome was not built in a day. 3. 为了突出强调动作的承受者时,常用被动语态. eg. Thousands of beache
4、s are polluted .,四、主动语态变为被动语态的步骤: They speak English. 主语 谓语 宾语 English is spoken by them. 主语 谓语动词的过去分词 宾语,(1)主动语态的宾语变成被动语态的主语。 (2)主动语态的谓语动词变为被动语态的谓语动词，即”“be+及物动词的过去分词”(be有时态、人称和数的变化)。 (3)主动语态的主语变为by的宾语。,主动语态变为被动语态的步骤,1.I open the door.,The door is opened by me.,2.He often helps homeless people.,Home
5、less people are often helped by him.,3.I handed out some papers just now.,Some papers were handed out by me just now.,主动语态:主语是动作的执行者。 被动语态:主语是动作的承受者。 被动语态结构为：,(主动语态),(主动语态),(主动语态),(被动语态),(被动),(被动语态),be+过去分词,将下列句子变为被动语态。,Revision:Writing,五、被动语态的时态表示 被动语态的时态一般只通过be表现, 过去分词 不变。例如： 一般现在时: The trees are
6、planted by the farmers. 一般过去时: The trees were planted by the farmers. 现在进行时: The trees are being planted by the farmers.,一般将来时：The trees will be planted by the farmers. 现在完成时：The trees have been planted by the farmers. 含情态动词的被动语态：The trees can (must,should) be planted by the farmers.,六、被动语态的几种句型： 肯定
7、句 主语+be+过去分词+(by) A sweet song was sung by her on the stage. 否定句 主语+be+not+过去分词+(by) A sweet song wasnt sung by her on the stage. 一般疑问句 Be+主语+过去分词+(by) Was a sweet song sung by her on the stage? 特殊疑问句 疑问词+be+主语+过去分词+(by) Where was a sweet song sung by her?,Exercise,1. They produced that kind of car.
8、 2. The workers built a bridge over the river. 3. Mother tells me a story every day.,That kind of car was produced by them.,A bridge was built by the workers over the river.,I am told a story by Mother every day.,I. 请把下列主动句变为被动句:,1. The TV _ (invent) around 1927. 2. They are used for _ (see) in the
9、park. 3. This kite _ (make) by Uncle Wang. 4. Tea _ (discover) a long time ago. 5. Our classroom _ (should clean) every day.,was invented,seeing,was made,was discovered,should be cleaned,II. 用所给动词的适当形式填空：,1. _ _ the computer _ (什么时候发明的)？ 2. _ was the car _ _ (谁发明的)？ 3. A pen _ _ _(用来做) writing. 4. W
10、hat do you think is _ _ _ _ (最有帮助的发明)？ 5. He said the fish was _ _ (足够咸)。,When was,is used for,invention,the most helpful,salty enough,Who,invented,by,invented,III. 根据汉语完成句子：,Model 1,A: What is this? B: It is an alarm clock. A: What is it used for? B: It is used for waking people up in the morning.
11、A: Do you think it is annoying? B: Sometimes, when I want to go on sleep.,Model 2,A: What is this? B: It is a light bulb. A: What is it used for? B: It is used for giving light. A: Do you think it is helpful? B: Yes, I think so. Because I always do homework and read books in the evening by its light
12、.,6. Imagine that you are alone on tiny island. alone adj. 意为“单独的”, 不带感情色彩。 e.g. When his wife died, he lived alone. lonely adj. 意为“孤独的, 寂寞的” e.g. He feels lonely when he is alone. lonely 指地方时表示“荒凉的, 偏僻的” e.g. The old man lives in a lonely small village.,3a Reading,Who invented tea?,Answer the follo
13、wing questions according to the article above.,1. What is the article about? 2. When was it invented? 3. Who was it invented by? 4. How was it invented?,The article is about the invention of tea.,It was invented over three thousand years ago.,It was invented by the Chinese emperor, Shen Nong.,It was
14、 invented by accident.,According to an ancient legend, once when Shen Nong was boiling drinking water over an open fire, some leaves from a nearby bush fell into the water and remained there for some time. He noticed that the leaves in the water produced a pleasant smell. Later he tasted the water a
15、nd found it quite delicious. Thats how he discovered tea.,Who can retell the story of the invention of tea?,1. Although tea wasnt brought to the western world until 1610, this beverage was discovered over three thousand years before that. 虽然茶直到1610年才传入西方世界, 但这种饮料在三千多年前就被发现了。,(1) although conj. 意为 “虽
16、然,尽管”,引导让步状语从句。我们不能根据汉语习惯, 在后面使用连词but, 不过它可以与 yet, still 连用。,There is air around us, although we cant see it. 尽管我们看不见, 但我们周围全是空气。,e.g.,(2) notuntil 意为 “直到才” 。,注：until 的主句中也可以用延续性动词，此时 until 不与 not 连用，表示 “直到为止”。,用于notuntil 结构中的主句谓语多为短暂性动词。,He did not go to bed until his father came home. 直到他爸爸回家时他才睡觉
17、。,I will wait until he returns. 我将等到他回来。,e.g.,e.g.,2. According to an ancient Chinese legend, the emperor Shen Nong discovered tea when he was boiling drinking water over an open fire. 根据中国古代的一个传说, 神农帝在户外的火上烧饮用水时发现了茶叶。,according to 介词短语,意为 “根据;依照”后接代词,名词或由疑问词及whether引出的名词性从句。,According to the radio,
18、 it will rain tomorrow. 根据收音机说,明天有雨。,e.g.,3. Some leaves from a nearby bush fell into the water and remained there for some time. 一些叶子从附近的灌木丛落到水里。并在水里浸泡了一段时间。,He was drunk and fell into the water. 他酒醉跌落水中。,remain 表示 “继续留在某处”。,How long will you remain here? 你要在此地停留多久?,fall into “落入, 陷入”。,e.g.,e.g.,Pl
19、aese表“讨好，讨人喜欢；喜欢”（不及物动词）或者“使高兴，使满意，使喜欢”（及物动词）-Go where you please.你想去哪就去哪。（不及物动词，喜欢）-What pleases you best?你最喜欢什么？（及物动词，使喜欢）,Pleased它是个形容词。表示“高兴的，喜欢的，满意的”。它指的是人主观上感到的满足心理-Im pleased to see you!见到你真高兴！pleased的句型有：be pleased to do sth.高兴做某事be pleased at/about/with/by 对感到满意/高兴be pleased that（后加从句）对（句子）
20、感到满意/高兴,Pleasure它一般是名词。有时做动词。名词时，表示“满足；乐趣；消遣、娱乐”Its a pleasure to read this book. 读这本书真是件乐事。Pleasant它也是一个形容词。但是它表示“令人愉快的”。,With pleasure 用于别人求你做某事，你很乐意去做的时候。例如： Could you post the letter for me ? With pleasure. 你能否替我把这封信寄走？愿意效劳。,My pleasure是相当正式的说法，意思是“我的荣幸之至”。 通常帮人后，人家致谢才说。 E.g . -Thanks for helping me. -My pleasure.,