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课件网) Unit 4 Amazing Science Topic 3 Section C 新 课 导 入 新知学习 重点研讨 课堂小结 当堂检测 学习目标 Language Goal 能熟悉并正确运用本课时的重点单词和短语 能掌握定语从句的结构和用法 能谈论电脑的重要性 新知学习 重点研讨 课堂小结 当堂检测 学习目标 Computers were invented in the USA in the 1950s, now they have become very important in many areas of work and leisure. 新知学习 重点研讨 课堂小结 当堂检测 学习目标 What can the computers use for medical care space 新知学习 重点研讨 课堂小结 当堂检测 学习目标 business industry 新知学习 重点研讨 课堂小结 当堂检测 学习目标 education daily life 新知学习 重点研讨 课堂小结 当堂检测 学习目标 education business industry communication daily life medical care entertainment sports √ √ √ √ √ √ √ √ 1a 1. Tick the fields we use the computer in. 新知学习 重点研讨 课堂小结 当堂检测 学习目标 2. Can you give an example of the use of the computer in one of the fields above 新知学习 重点研讨 课堂小结 当堂检测 学习目标 The Importance of Computers Since computers were invented in the USA in the 1950s, they have become very important in many areas of work and leisure.There is no doubt that computers are very useful in technology and business. In space, computers have been used to control the speed and direction of a spaceship.With the help of computers, doctors can find diseases easily and solve other problems.For example, tiny computers which are inside patients' bodies can keep their hearts beating normally. In factories, robots are controlled by computers that are like human brains. They can do work that is dangerous to humans. In business, computers are used to place and cancel orders. They are also making the workplace safer and better. Read and understand. 新知学习 重点研讨 课堂小结 当堂检测 学习目标 Since the Internet came into being, people's lives at home have changed, too. More and more people have personal computers that are used to play games and watch movies. Thanks to the Internet, people can do shopping and do business at home. Instead of writing letters on paper, people communicate by sending e-mails and chatting on line. The whole world is connected. The Internet is making the world smaller, like a village. Computers have improved our lives, but they have brought problems, too. For instance, if we work on computers too long, we may get headaches or sore eyes. If we play computer games too much, we won't have enough time to study or exercise. Besides, not everything we read on the Internet is true or good for puters help us at work and at home, but they must be used properly. 新知学习 重点研讨 课堂小结 当堂检测 学习目标 Paragraph 1. Since computers were invented in the USA in the 1950s, they have become very important in many areas of work and leisure. Paragraph 2. Since the Internet came into being, people’s lives at home have been changed, too. Paragraph 3. Computers have improved our lives, but they have brought problems, too. 1b Read 1a a ... ...
