九上U4T1SC(教育精品).ppt

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1、Topic 1 Spaceships are mainly controlled by computers.怀疑，疑惑怀疑，疑惑无疑地无疑地极小的，微小的极小的，微小的取消，撤销，废止取消，撤销，废止连接，把连接，把联系起来联系起来例如例如交换，调换，交流交换，调换，交流 doubt no doubt tiny cancel connect for instance exchange1.What can computers and the Internet do in our daily life?2.Can we work on computers too long?Why?Watch th

2、e flash of 1a carefully.1.p_ 2.t_3.c_4.d_5.c_a.ones ownb.very small in size c.to join together two or more thingsd.a feeling of being uncertain about something or not believing somethinge.to exchange information,news,ideas,etc.with other peopleComplete the following words according to their first le

3、tters and meanings.1b 1.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 computers are very useful in technology and business.Paragraph 3:Since the Internet came into being,peoples liv

4、es at home have changed,too.Paragraph 4:Computers have improved our lives,but they have brought problems,too.2.Choose the best title for this passage.A.The Importance of Computers B.How to Use Computers C.Disadvantages of Computers 1.there is no doubt 毫无疑问、毋庸置疑毫无疑问、毋庸置疑 There is no doubt that comput

5、ers are very important.毫无疑问毫无疑问,计算机是非常重要的。计算机是非常重要的。毫无疑问，毫无疑问，我们会成功的。我们会成功的。There is no doubt that we will be successful.2.keep their heart beating 使他们的心脏跳动使他们的心脏跳动 （beating是现在分词做宾语补足语）是现在分词做宾语补足语）3.Robots controlled by computers can do work that is dangerous to humans.由电脑控制的机器人能替人类做那些有由电脑控制的机器人能替人类

6、做那些有危险的工作。危险的工作。过去分词短语做后置定语，修饰过去分词短语做后置定语，修饰robots定语从句定语从句，修饰，修饰work6.instead 代替代替,替代替代 instead of 代替代替,而不是而不是 如果你不能去如果你不能去,我可以替你去。我可以替你去。If you cant go there,I will go instead.我们不能只是谈论我们不能只是谈论,应当做点什么。应当做点什么。We should do something instead of just talking about it.7.instance (同同example)例子例子,实例实例 我们来给

7、你举几个例子。我们来给你举几个例子。Let me give you some instances/examples.for instance=for example 例如例如 For instance/For example,he is a good student.8.ones own 某人自己的某人自己的 她自己的房间她自己的房间her own room 他们自己的钱他们自己的钱 their own moneyDiscuss in groups and list the advantages and disadvantages of the computer.1cwatch moviesp

8、lay gamesdo shopping do businesssend e-mailschat on lineget headaches or sore eyesno time to study well or get enough exercisesomething is not true or good for us21.Her rich experience gave her an _ over other applicants（申请人）（申请人）for the job.2.If you put very _ things under a microscope(显微镜显微镜)，you will find it very large.3.Computers have _(连接连接)the whole world to be one“small village”.4.For _(例如例如)，if we dont take enough exercise,well be weak.5.I_(取消取消)the reservation for the ticket to New York yesterday.1.完成完成Section C。2.预习预习Section D。3.复习复习SectionA、B、C 知识点。知识点。