1、Unit 4 Amazing Science Topic 1 When was it invented?,Section B,( )1.He _play computer games unless he finished hishomework.A. was allowed to B. was not allowed to C. allow to ( )2.We all know that paper _wood.A. is made of B. is made into C. is made from ( )3.This kind of machine _in 2006.A. is inve
2、nted B. is made C. was invented ( )4.A(An)_is used for taking photos.A .Camera B. Lift C. MP3 player ( )5 .We should spend more time _because its tooimportant.A .to learn English B. learning English C. in English,B,C,C,A,B,I. Choose the right answer. You can do it.,Review,II. Fill in the blanks with
3、 the right preposition.1.The desk is made _ wood. 2.The red wine is made _ grapes. 3.This delicious cake was made _my mother. 4.Glasses are made _ glass. 5.Our group is made up _ four students. 6.That kind of machine is made _Japan.,of,from,of,of,by,in,Review,invent /America/in 1946,A: Where were co
4、mputers invented? B: They were invented in America. A: When were computers invented? B: They were invented in 1946.,Look and talk about the picture.,MP3 player 1998 Korea listen to music,mobile phone 1973 America communicate easily,Please choose one to talk about.,digital camera 1975 America take ph
5、otos,A:Whats this ? B:Its A:When was it invented ? B: It was invented in A: Who invented it ? B:,1b Listen to 1a and choose the correct answers.,( ) 1. Where are Michael and Jane? A. In the science museum. B. At the school library. C. In the zoo. D. In the park. ( ) 2. Which object is not mentioned
6、in the conversation ? A. Light bulb. B. Airplane.C. Television. D. Radio.,A,C,1a Look, listen and say.,When was it invented? Who invented it?,Look, a light bulb!,In 1897, Thomas Edison.,In 1895 in 1903 in 1879,Can you match them?,1c Read 1a and complete the table.,radio,airplane,Thomas Edison,Wilbur
7、 and Orville Wright,1879,1895,1a Look, listen and say.,1d Discuss with your classmates the inventions listed in 1c. Let them guess which invention you are describing.,You may begin like this:It is widely used by people everywhere. It was invented in 1879 by Thomas Edison. Its said that,A: What are t
8、hese ? B: A: When were they produced first ? B: A: What were they made of ? B:,Do you know?,2 Fill in the blanks with the proper forms of the given words.,The first jeans were produced in 1855. At that time, they _(not call ) jeans and they were just hard-wearing pants designed for workers. The pant
9、s _ (make ) of the brown cloth. This kind of cloth _ usually _(use) for making tents. Nowadays, their materials have been changed so that it feels more comfortable. And many different jeans styles _ also _(create). They _( design) not only for workers but also for teenagers and women. Later jeans ar
10、e popular all over the world.,were not called,were made,was,used,are,created,are designed,A. Karl Benz,C. Alexander Graham Bell,B. John Baird,Invention,Inventor,Year,a.1926,b.1876,c.1885,3 Listen to the three passages. Match the pictures with the following information.,4a Read the following words. L
11、isten and check the vowels.,rocket cotton hospital model satellite camera laptop plastic,4b Listen and read the following sentences aloud, paying attention to the stress and intonation. Then use the words in 4a to make up similar conversations.,A: When was the digital camera developed? B: It was dev
12、eloped in the 1970s. A: Is the digital camera developed in Korea? B: No. A: Where was it developed? B: It was developed in Japan.,The light bulb is w_ used by people everywhere. Thomas Edison i_ the light bulb in 1879. Its s_ that he invented more than two thousand things during his life. The airpla
13、ne was invented by Wilbur and Orville Wright in 1903. Its d_ from todays.,Exercises,idely,nvented,aid,ifferent,We learn: 1.Some words: bulb, airplane, hard-wearing, Korea2. Some phrases: be used by, more than, be different from 3. Some sentences:Its said that he invented more than two thousand thing
14、s during his life. We can: 1.Use the simple past passive voice:Do you know when it was invented?It was invented in 1879. 2.Talk about the inventors of some great inventions.,Summary,Read 1a. Memorize the useful expressions and key sentences that we learn today. Finish Section B in your workbook. Preview Section C.,Assignment,Thank You !,