when was it invented

1、Unit 4When was it invented?Section B原秀琳: To master the usage of the words : Be able to talk about the important inventions by passive voice.3.Feeling goals:Set up high dream.1885年年1876年年 1976年年1927年年1879年年1796年年1 Whats the most useful invention?2 Who was it invented by?3 When was it invented?4 What

2、is it used for?I think the most useful invention is.It was invented inby.And it is used for.Review: sourDescribe how food tastesteasweetsweetcrispy and saltypotato chipsListening (2a, 2b: P28) The potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potat

3、oes werent thin enough.TFT4. The customer said they werent salty enough. 5. George wanted to make the customer happy. 6. The customer was happy in the end. FFTThe history of chips _that potato chips were invented by mistake? Chips _ _by a chef called George Crum. They were invented in_. George Crum

4、cooked them for a long time until they _And he sprinkled lots of salt on them so they were_.Did you know were invented1853were crispyreally saltyDiscuss in groups:1 賓語(yǔ)從句三要素：賓語(yǔ)從句三要素：2 enough 的用法的用法3 mistake 的用法的用法Explanation:1.The customer said they werent salty enough. 這個(gè)顧客說(shuō)菜不夠咸。這個(gè)顧客說(shuō)菜不夠咸。 (1)said 后

5、是賓語(yǔ)從句后是賓語(yǔ)從句, 省略了省略了that。當(dāng)。當(dāng) 賓語(yǔ)從句主句用一般過(guò)去時(shí)賓語(yǔ)從句主句用一般過(guò)去時(shí), 從句也要從句也要用過(guò)去的某種時(shí)態(tài)。用過(guò)去的某種時(shí)態(tài)。 He asked me whom I was waiting for. 他問(wèn)我在等誰(shuí)。他問(wèn)我在等誰(shuí)。(2)enough 修飾名詞時(shí)修飾名詞時(shí), 可以放在名詞之前可以放在名詞之前, 也可以放在名詞之后。如也可以放在名詞之后。如: I have enough money to buy it. ( I have money enough to buy it.enough作副詞修飾形容詞，副詞時(shí)置后。作副詞修飾形容詞，副詞時(shí)置后。Youre

6、clever enough to learn English well.He studies hard enough. 2.The potato chips were invented by mistake. 薯片是無(wú)意中被發(fā)明薯片是無(wú)意中被發(fā)明的。的。by mistake 意為意為 “錯(cuò)誤地錯(cuò)誤地,無(wú)意地?zé)o意地” I took his backpack by mistake. 我錯(cuò)拿了他的書(shū)包。我錯(cuò)拿了他的書(shū)包。 He put salt in her cup of tea by mistake. 他錯(cuò)把鹽放進(jìn)她的茶里。他錯(cuò)把鹽放進(jìn)她的茶里。 mistake 做名詞做名詞, 意為意為 “弄錯(cuò)弄

7、錯(cuò), 誤解誤解” You have made a foolish mistake. 你犯了一個(gè)愚蠢的錯(cuò)誤。你犯了一個(gè)愚蠢的錯(cuò)誤。 mistake 作動(dòng)詞作動(dòng)詞, 意為意為 “弄錯(cuò)弄錯(cuò),誤解誤解” She didnt speak very clearly so I mistook what she said. 她講的不清楚她講的不清楚, 所以我誤解了她的話(huà)。所以我誤解了她的話(huà)。Reading (3a: P29)Ask and answer 1. What is this article about? I think it is about the invention of tea. 2. Was

8、 it invented on purpose or by accident? By accident. The first sentence tells us that.3. When was it invented? Over 3,000 years before 1610. 4. Who invented it? The emperor Shen Nong.Ask and answer5. Who can tell us how it was invented? According to an ancient legend, once when Shen Nong was boiling

9、 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 and found it quite delicious. Thats how he discovered tea.Explanation1. Although tea wa

10、snt brought to the western world until 1610, this beverage was discovered over three thousand years before that. 雖然茶直到雖然茶直到1610年才傳入西方世界年才傳入西方世界,但這種飲料在三千多年前就被發(fā)現(xiàn)了。但這種飲料在三千多年前就被發(fā)現(xiàn)了。(1) although 作連詞作連詞, 意為意為 “雖然雖然,盡盡管管”,引導(dǎo)讓步狀語(yǔ)從句引導(dǎo)讓步狀語(yǔ)從句, 我們不能根據(jù)我們不能根據(jù)漢語(yǔ)習(xí)慣漢語(yǔ)習(xí)慣, 在后面使用連詞在后面使用連詞but, 不過(guò)它不過(guò)它可以與可以與yet, still連用連

11、用;若主從句的主語(yǔ)相若主從句的主語(yǔ)相同同, 且從句謂語(yǔ)含有動(dòng)詞且從句謂語(yǔ)含有動(dòng)詞be, 可將從句可將從句主語(yǔ)和動(dòng)詞主語(yǔ)和動(dòng)詞be省略。省略。 Although (it was) snowing, it was not very cold. 雖然在下雪雖然在下雪, 但是天氣不是很冷。但是天氣不是很冷。 There is air around us, although we cant see it. 盡管我們看不見(jiàn)盡管我們看不見(jiàn), 但我們周?chē)强諝狻５覀冎車(chē)强諝狻?notuntil 意為意為 “直到直到才才”until 引導(dǎo)一個(gè)時(shí)間狀語(yǔ)從句。引導(dǎo)一個(gè)時(shí)間狀語(yǔ)從句。 He did not g

12、o to bed until his father came home. 直到他爸爸回家時(shí)他才睡覺(jué)。直到他爸爸回家時(shí)他才睡覺(jué)。2. According to an ancient Chinese legend, the emperor Shen Nong discovered tea when he was boiling drinking water over an open air. 根據(jù)中國(guó)古代的一個(gè)傳說(shuō)根據(jù)中國(guó)古代的一個(gè)傳說(shuō), 神農(nóng)帝在神農(nóng)帝在戶(hù)外的火上燒飲用水時(shí)發(fā)現(xiàn)了茶葉。戶(hù)外的火上燒飲用水時(shí)發(fā)現(xiàn)了茶葉。 According to 是個(gè)短語(yǔ)介詞是個(gè)短語(yǔ)介詞,意為意為 “根根據(jù)據(jù);依照

13、依照”后接代詞后接代詞,名詞或由疑名詞或由疑問(wèn)詞以及問(wèn)詞以及whether引出的名詞性從句。引出的名詞性從句。 According to the radio, it will rain tomorrow. 根據(jù)收音機(jī)說(shuō)根據(jù)收音機(jī)說(shuō),明天有雨。明天有雨。 According to what you said just now, he was right then. 根據(jù)你剛才說(shuō)的根據(jù)你剛才說(shuō)的,那么他就對(duì)了。那么他就對(duì)了。3. Some leaves from a nearby bush fell into the water and remained there for some time.

14、一些葉子從附近的灌木叢落到水里。一些葉子從附近的灌木叢落到水里。并在水里浸泡了一段時(shí)間。并在水里浸泡了一段時(shí)間。leaf 的復(fù)數(shù)形式為的復(fù)數(shù)形式為leavesremain 表示表示 “繼續(xù)留在某處繼續(xù)留在某處” How long will you remain here? 你要在此地停留多久你要在此地停留多久?fall into “落入落入, 陷入陷入” He was drunk and fell into the water. 他酒醉跌落水中。他酒醉跌落水中。Writing (3b:)A sample article From pie plate to flying disk The flying disk was invented by college students. Flying disk is a metal pie plate. In the 1950s, several college students ate pies made by a bakery in Bridgeport, Connecticut. T