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1、When was it invented? Unit 9I say invent, you say invented.Invent, invent, invent, invent, invented, invented.I say use, you say used.Use, use, use, use, used, used.I say buy, you say bought.Buy, buy, buy, buy, bought, bought.Make, make, make, made, made, made.Do, do, do, do, did, done.Throw, throw,

2、 throw, throw, threw, thrown.過去分詞過去分詞主動(dòng)語態(tài)主動(dòng)語態(tài)被動(dòng)語態(tài)被動(dòng)語態(tài) invented invented used for used for made of made of cooked cooked taste taste give give say say will buy will buy will discover will discoverwas/werewas/were invent inventeded was/werewas/were us useded for forwas/werewas/were mademade of ofwas/w

3、erewas/were cook cookededis/areis/are tast tasteded is/are is/are givengivenis/areis/are saidsaid will will bebe boughtbought will will bebe discover discoverededbe+動(dòng)詞的過去分詞動(dòng)詞的過去分詞A: When was the _ invented?B: I think it was invented in _.19761876197119271885A: whats this?B: Its aA: When was it inven

4、ted?B: It was invented in . . .A: Who was it invented by?B: It was invented byA: What is it used for?B: It is used forWhich do you think is the most useful? Why?Talk about the useful invention the most the most useful useful inventioninventionwhywhywhenwhenwhowhoWhat are What are they they used foru

5、sed forothersothersDiacussDiacuss and report: and report:Report: I think the most useful invention is Because Finish the sentences with the Passive Voice.1. Thomas Edison invented the light bulb. The light bulb _ by Thomas Edison.2. People write most international business letters in English. Most i

6、nternational business letters _ in English.3. We should clean the fridge once a month. The fridge _ once a month.4. I bought two new mobile phones for my parents last week. Two new mobile phones _ for my parents last week. was invented were bought are written should be cleaned The bike is one of the

7、 simplest yet most useful inventions in the world. What is most surprising is that it was not invented earlier, although the great inventor Leonardo had drawn pictures for bikes and also for flying machines and some other things. Those things were not produced until long after he died. A person ridi

8、ng a bike uses much energy to make the bike move, and there is no pollution at all when you are riding. Even so, in developed countries, most people dont go to work by bike. It is not because the bikes are expensive or people feel tired if they ride to work. It is because the number of cars on the r

9、oads becomes larger. It certainly becomes more dangerous to ride a bike. As a result, more people put their bikes away and go to work by cars, and in this way, the situation is made more serious. Perhaps the best way to make riding safer and more popular is to create paths only for bikes. And to mak

10、e it so difficult and expensive for drivers to make their cars into city that they will go back to use their bikes.1. When was the bike invented? 1. When was the bike invented? A.very early B.beforeA.very early B.before Leonardo drawn picture of bikes Leonardo drawn picture of bikes C. after Leonard

11、o died D. until Leonardo diedC. after Leonardo died D. until Leonardo died2. _ was used to move the bike? 2. _ was used to move the bike? A. Gas B. Coal C. Energy D. No thingA. Gas B. Coal C. Energy D. No thing3. In developed countries, people dont go to work by 3. In developed countries, people don

12、t go to work by bike because_ bike because_ A. the bike is expensive B.its too tired to ride a bike A. the bike is expensive B.its too tired to ride a bike C. there are too many cars on the way D.theyC. there are too many cars on the way D.they are rich are rich4. A. bikes are simple and useful. B.

13、bikes invented 4. A. bikes are simple and useful. B. bikes invented before their shapes are drawn, C. bikes produce no before their shapes are drawn, C. bikes produce no pollution D. bike arent often ride to work in pollution D. bike arent often ride to work in decelopeddeceloped counties counties T

14、he bike is one of the simplest yet most useful inventions in the world. What is most surprising is that it was not invented earlier, although the great inventor Leonardo had drawn pictures for bikes and also for flying machines and some other things. Those things were not produced until long after h

15、e died. A person riding a bike uses much energy to make the bike move, and there is no pollution at all when you are riding. Even so, in developed countries, most people dont go to work by bike. It is not because the bikes are expensive or people feel tired if they ride to work. It is because the nu

16、mber of cars on the roads becomes larger. It certainly becomes more dangerous to ride a bike. As a result, more people put their bikes away and go to work by cars, and in this way, the situation is made more serious. Perhaps the best way to make riding safer and more popular is to create paths only

17、for bikes. And to make it so difficult and expensive for drivers to make their cars into city that they will go back to use their bikes.5. If they want people to ride bikes to work, they 5. If they want people to ride bikes to work, they should_? should_? A. make the drivers pay more B. create paths

18、 only for A. make the drivers pay more B. create paths only for bikes C. make it more safe for riding D. All the abovebikes C. make it more safe for riding D. All the aboveWhy could they become great inventors?They were cleverer than others.They had money.They had good imagination.(想象力想象力)They were

19、determined (堅(jiān)定堅(jiān)定)to do something well.They were not afraid failure. they were good at learning from failure.They liked to solving problems in many ways. There was an _ (古老的古老的)legend about potato chips. In 2 _(世紀(jì)世紀(jì)) ago, there was a chef _ (叫做叫做)George. One day, he was in a bad mood, so he cooked th

20、e potato chips for a long time _(直到直到)they were crispy. It gave out a _ (討人喜歡的討人喜歡的)smell. The chef sprinkled a lot of salt, so they _(品嘗品嘗)very salty. According to this legend, we know George is the inventor of the potato chips and potato chips were _(發(fā)明發(fā)明) by mistake.Fill in the blank.Fill in the

21、blank. centuriesancientcalled tastedinventedpleasantuntilDo you know the history of inventing sandwich?Do you know the history of inventing sandwich?Do you know the history of inventing sandwich?Who A man called SandwichWhat food When 1700sWhere EnglandHow Play cards, busy, put meat and vegetables i

22、n the breadToday Popular , childrens favorite food The history of sandwiches Do you know that sandwiches were invented by a usual man? _. Today_.Writing. Do you know what “clone” means? In fact, “clone” Do you know what “clone” means? In fact, “clone” is not a word. Here is a story about it.is not a

23、 word. Here is a story about it. It is said that a Scottish scientist has cloned a It is said that a Scottish scientist has cloned a young sheep several years ago and named it Dolly. young sheep several years ago and named it Dolly. This was the first time the scientist has made a This was the first

24、 time the scientist has made a young sheep from a fully-grown sheep. So the word young sheep from a fully-grown sheep. So the word “clone” means to make the same animal form a fully-“clone” means to make the same animal form a fully-grown one. If everyone knows how to do cloning, grown one. If every

25、one knows how to do cloning, people will not have to keep so many sheeporpeople will not have to keep so many sheepor cows. cows. Now there are some other people who even want to Now there are some other people who even want to clone man. Of course, we shouldnt. cloning man clone man. Of course, we

26、shouldnt. cloning man sounds interesting but not posible. First. We cantsounds interesting but not posible. First. We cant a a dead person, because the cells in his body are dead dead person, because the cells in his body are dead already. Then can we clone a living person? The already. Then can we

27、clone a living person? The answer is “No”. A cloned person is only something, answer is “No”. A cloned person is only something, but not a real man although he can speak and think.but not a real man although he can speak and think. Scientis Ian Wilmut, the father of Dolly cloned a Scientis Ian Wilmut, the father of Dolly cloned a young sheep. He didiyoung sheep. He didi this to make a better animal. this to make a better animal. We should not clone men in this way. We should not clone men in this way.