Unit 4 Topic 3 Section C（同步课件）-2023-2024学年九年级英语上册同步精品课堂（仁爱科普版）

八年级上册 英 语 仁爱版 仁爱版 英语 九年级上册 Warming up—Pre-reading—While-reading—Post-reading—Exercises —Summary Unit 4 Amazing Science Topic 3 China is the third nation that sent a person into space. Section C Warming up What are the computers used for? 1a 1. Tick the fields we use the computer in. education business industry communication daily life medical care entertainment sports Doctors can find diseases easily with the help of computers. Can you give an example of the use of the computer in one of the fields above? In space, computers have been used to control the speed and direction of a spaceship. learn new words doubt n.&v.怀疑,疑惑 [daʊt] no doubt 无疑地= there is no doubt that 　 tiny adj.极小的，微小的 [ˈtaɪni] inside prep.在···里adv.在里面 [ˌɪn'saɪd] normal adv.通常,正常情况下 [ˈnɔːm(ə)l] cancel v.取消,撤销;废止 [ˈkæns(ə)l] workplace n.工作场所 ['wɜːkpleɪs] connect v.连接，把……联系起来 [kə'nekt] for instance 例如 　 besides adv.而且prep.除···之外(还) [bɪˈsaɪdz] properly adv.正确地,恰当地 [ˈprɒpəli] 用括号内所给单词的适当形式填空, 每空一词。 1. When it first came into _________ (be) 4.5 billion years ago, Earth was a dry rock. 2. We should realize the significance of washing hands _________ (proper). being properly 3. There is a notice on the board saying the class has been _________ (cancel). 4. The Spring Festival _________ (normal) lasts 15 days from January to February. canceled normally 5. It’s dangerous to tell your _________ (person) information to others online. personal Pre-reading What is the passage about ? The Importance of Computers Underline the topic sentence of each paragraph. 1. Since computers were invented in the USA in the 1950s, they have become very important in many areas of work and leisure. 2. Since the Internet came into being, people’s lives at home have been changed, too. 3. Computers have improved our lives, but they have brought problems, too. Whil