2015年秋 市优质资源评比优秀作品 九年级上册 Unit 4 Amazing Science.ppt.ppt
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1、Unit 4 Amazing Science,Topic1 When was it invented?,Section D,修订人: 韩慧灵,1.复习掌握语法被动语态,并能用之去做题。 2.复习并背诵一些功能句。 3.通过阅读短文,理解什么是GPS定位系统及其在生活中的应用。,学习目标,自学指导1,1.自学内容:课本87页Grammar。 2.自学方法:背诵、观察、总结。 3.自学时间:5分钟 4.自学要求:背诵并观察句子,然后总结出被动 语态的构成规律,并能用之去做题。,Grammar,Passive Voice (),The radio was invented by Guglielmo
2、Marconi in 1895.,When was the digital camera developed ? Where was it developed? What is a rocket used for?,It was developed in the 1970s. It was developed in Japan. It is used for sending satellites or spaceships into space.,Passive voice was /were +done ( ) 1. A big supermarket _in our city last y
3、ear. A. is built B. were built C. was built ( ) 2.Could you tell me who the radio _ by? A. invents B. invented C. was invented ( ) 3. Many trees and flowers _ in our school last year. They made our school more beautiful. A. have planted B. were planted C. planted ( ) 4.The children _ swim last month
4、 and they can swim very well now. A. are taught B. were taught C. were taught to ( ) 5.It is said that potato chips _by mistake about one hundred years ago. A. were invented B. invented C. are invented,C,B,C,A,C,自学检测1,自学指导2,自学内容:课本87页Functions. 自学方法:背诵。 自学时间:3分钟 自学要求:能够熟练掌握这些句子.,Functions,自学检测2,wish
5、,hope,Its said that,can be an inventor,自学指导3,自学内容:课本87页的短文。 自学方法:扫读。 自学时间:3分钟 自学要求:通过理解生词和短语,能够回答88页的问题。,1. How did the early explorers know where they were? They found out where they were by using stars. 2. Whats the disadvantage of using the stars as guiding marks? Its disadvantage is that it didn
6、t work well when the weather was bad and the stars could not be seen. 3. What is a GPS? Is it useful to use? It is like a man-made star. We can use it at any time, in any place and in any weather to find out our position. It is very useful. 4. What do you think the GPS will be used for in the future
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