Unit4 Topic 1 Spaceships are maily controlled by computers SectionC（共23张PPT）

Spaceships are mainly controlled by computers. Section C ShenzhouⅤ ShenzhouⅥ ShenzhouⅦ spaceships Description 2003.10.15 Yang Liwei Shenzhou V 21 hours 2003.10.16 6:23 a.m. back 2005.10.12 Fei Junlong and Nie Haisheng Shenzhou VI about 5 days 2005.10.17 4:33 a.m. back 2008.09.25 Zhai Zhigang, Liu Boming and Jing Haipeng Shenzhou VII two days and twenty hours 2008.09.28 back What can we do on the computer? What other things can we do on the computer? Choose the best title for this passage. A. The Importance of Computers B. How to Use Computers C. Disadvantages of Computers 2. Underline the topic sentence of each paragraph. Paragraph 1: Computers have become very important in many areas of work and leisure. Paragraph 2: There is no doubt that computer are very useful in technology and business. Paragraph 3: Since the Internet came into being, people’s lives at home have changed, too. Paragraph 4: Computers have improved our lives, but they have brought prob