Unit 6 When was it invented? Section A

Lead in Talk about the inventions(发明). Which one do you think is the most helpful in our daily life?

Presentation 1a Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first,4=last) 2 4 1 3

c b d a a c d b 1b Listen and match the inventions with the years. 1876 1885 1927 1971 a a When was the ...invented? c d b

1885 1876 1927 1971 1c PAIRWORK A: When was the telephone invented ? B:I think it was invented in 1876.

2a Listen and number the inventions[1-3] in the order you hear them. ___ shoes with special heels ___ hot ice-cream scoop, runs on electricity ___ shoes with lights 通上电

What is it/are they used for? 2b Listen again and complete the chart below. Invention What is it/are they used for? ______ the style of the shoes seeing _________ _______really cold ice-cream shoes with special heels shoes with lights hot ice-cream scoop changing in the dark serving 2c Make conversations using the information in 2b. A: What are they used for? B: They’re used for...

2d Role-play the conversation. Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention? Roy: My pleasure! Let me think ... hmm ... I know! The zipper! Paul: The zipper? Is it really such a great invention? Roy: Think about how often it’s used in our daily lives. You can see zippers on dresses, trousers, shoes, bags ... almost everywhere! 改变世界的 Paul: Well, you do seem to have a point ... Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in 1893. But at that time, it wasn’t used widely. Paul: Really? So when did it become popular? Roy: Around 1917.

Read the passage quickly and answer the questions. What is the subject for their school project? 2. What kind of invention does Roy think of? 3. Why does Roy think it is a great invention? 4. When was the zipper invented? 5. When did the zipper become popular? Small inventions that changed the world. The zipper. Because it is often used in our daily lives. In 1893. Around 1917.

An Accidental Invention （一个偶然的发明） 1.When was tea first drunk? Did you know that tea, the most popular drink in the world (after water), was invented by accident? Many people believe that tea was first drunk about 5,000 years ago. It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink. One day Shen Nong was boiling drinking water over an open fire. Some leaves from a tea plant fell into the water and remained there for some time. It produced a nice smell so he tasted the brown water. It was quite delicious, and so, one of the world’s favorite drinks was invented. About 5,000 years ago. 2. How was tea invented? It was invented by accident. fall into 落入 behind 落后 down 摔倒 off 掉下 asleep 入睡 in love with 爱上 fall(fell-fallen)构成的短语：

A few thousand years later, Lu Yu, “the 4. What is Cha Jing about? 3. Who is called “the saint of tea”? A few thousand years later, Lu Yu, “the saint of tea”, mentioned Shen Nong in his book Cha Jing. The book describes how tea plants were grown and used to make tea. It also discusses where the finest tea leaves were produced and what kinds of water were used. Lu Yu.

It is believed that tea was brought to Korea and Japan during the 6th and 7th centuries. In England, tea didn’t appear until around 1660, but in less than 100 years, it had become the national drink. The tea trade from China to Western countries took place in the 19th century. This helped to spread(传 播) the popularity of tea and the tea plant to more places around the world. Even though many people now know about tea culture, the Chinese are without doubt the ones who best understand the nature of tea. 5. When was tea brought to other countries? Korea and Japan: 6th and 7th centuries England: 1660

3a Reading Lu Yu and his book Cha Jing Paragraph 1 Read the passage quickly and match each paragraph with it’s main idea. Lu Yu and his book Cha Jing How tea spread to other countries How tea was invented by accident Paragraph 1 Paragraph 2 Paragraph 3

invent, drink, bring, produce, trade 3c Complete the sentences with the correct forms of the verbs in the box. invent, drink, bring, produce, trade 1.One of the world’s favorite drinks was________ by accident. 2.Tea was first ________ by Shen Nong 5,000 years ago. 3.A nice smell was _________ when the tea leaves dropped into the hot water. 4. Tea was__________ to Korea and Japan during the 6th and 7th centuries. 5.Tea is now ________ between many different countries. invented drunk produced brought traded

Grammar Focus When was the zipper invented？ It was invented in 1893. Who was it invented by? It was invented by Whitcomb Judson. When was tea brought to Korea？ It was brought to Korea during the 6th and 7th centuries. What is the hot ice-cream scoop used for? It’s used for serving really cold ice-cream Active Voice: Alexandar Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.

Grammar The simple past passive voice 一般过去时被动语态 被动语态的构成: 一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的执行者。 被动语态的构成: 助动词was/were+ p.p.(及物动词的) 过去分词 Grammar

主动语态变被动语态的结构图: 谓语动词 过去式 Bell invented the telephone in 1876. The telephone was invented by Bell in 1876. 主语 宾语 时间状语 主语 谓语动词的 过去分词 宾语 时间状语

Practice 用所给动词的正确形式填空： 1. The bike __________(fix) up by Xiaoming yesterday. 2. Shields ________ (use) for protecting people’s body in the past. 3.Last year, a picture _________(put) up on the blackboard. 4. She said French______________ (speak) in France. 5. Teenagers _______________(allow) to choose their own clothes two years ago. was fixed 盾牌 were used was put was spoken were allowed

4a Rewrite the sentences using the passive vocie. at a good price 以合理的价格 at a high price 以高的价格 They sold the fridge at a low price. _____________________________________________ 2. Somebody stole my camera from my hotel room. 3. Where did you take these photos? 4. Our parents advised us not to go out alone. 5. Different writers translated the book into different languages. 以低的价格 The fridge was sold at a low price. My camera was stolen from my hotel room. Where were these photos taken? We were advised not to go out alone. The book was translated into different languages. translate…into把…译为…

eat, lock, like, ring, invite, break, tell, bring 4b Complete the sentences with the correct forms of the verbs in the box. eat, lock, like, ring, invite, break, tell, bring You__________________ to the party last night, weren’t you? Why didn’t you go? 2.The earthquake happened all of a sudden, but luckily the villagers ________________to a safe place. 3.The door___________when we arrived, so we ________the bell. 4. The students _________ not to eat or drink in class, but Ruby ________ the rule when she started eating a biscuit in science class. 5. The cookies _____________by the hungry kids in less than 20 minutes, and they really _________them. were invited were brought rang was locked were told broke were eaten liked

4c Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks. was invented The telephone ______________(invent) by Alexander Graham Bell. He____________(born) in 1847. Mr. Bell __________（work）on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell_________(learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone ________________ (invent) in 1876. The first sentence that ___________(say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ___________ (use) around the world. was born worked learned was invented was said is used