Unit 4 Topic 3 Section C语言点课件 2025-2026学年仁爱科普版(2012)九年级英语上册

Unit 4 Topic 3 China is the third nation that sent a person into space. Section C 1 1. There is no doubt that computers are very useful in technology and business.毫无疑问电脑在技术和贸易业都非常有用。 考点 1. doubt n. & v. 怀疑，疑惑 There is no doubt that he will succeed. I don't doubt that they will turn up. (2)doubt (vt.)+ 从句 I doubt whether/if he'll come. (1)doubt (n.) 翻译 无疑，汤姆是我们班最优秀的学生。 ______________________________________________ There is no doubt that Tom is the best student in our class. 我怀疑他们是否是最要好的朋友。 ______________________________________________ I doubt whether/if they are the best friends. 及时练习 ①我相信他能通过考试。 I have ______________ that he will pass the exam. =I ______________ that he will pass the exam. ②He is clever，________，but he is lazy, too. A．for example B．no doubt C．such as. no doubt B don't doubt 2. Instead of writing letters on paper, people communicate by sending e-mails and chatting online. 考点1 1) instead单独使用，可放于句尾，放句中 应用逗号隔开。 2) instead of 代替，而不是…… 通常放于句中，后面要加名词，代词，或者动名词。 翻译 2. Instead of writing letters on paper, people communicate by sending e-mails and chatting online. 我们种树以保护环境，而没有砍倒它们。 ______________________________________________ 我的自行车坏掉了，所以我乘公交去上学。 ______________________________________________ We plant trees to protect the invironment, instead of cutting down them. My bike was broken， so I went to school by bus instead. 考点 3. For instance, if we work on computers too long, we may get headaches or sore eyes. 例如，如果我们在计算机前工作太久，也许会头痛或眼睛酸涩 for instance, 例如，举例。 例如，你可以通过看视频来学习英语。 ______________________________________________ For instance, you can study English by watching videos . 翻译 拓展 3. Fo instance, if we work on computers too long, we may get headaches or sore eyes. 例如，如果我们在计算机前工作太久，也许会头痛或眼睛酸涩 such as, for example用法 ① such as用来例举整体中的部分同类人或事物。前有逗号，后无逗号，直接加名词性短语。 ②for example是例举整体之中的一个，在句中多作插人语，前后都有逗号，可分句首、句中或句末，后面加句子。 拓展 such as, for example用法 记笔记，打个比方，也是一种学习英语的方式。 ______________________________________________ Taking notes, for example, is a way of learning English as well. 你可以选择那儿的任何一本书，例如红色这本。______________________________________________ You can choose any book there, such as the red one . 考点 4. The whole world is connected. 网络连接了全世界。 connect v. 连接 connection n. 关系，联系 ①connect sth. (to sth.) 使电、气、水等接通 ② connect sb./sth. (with sb./sth.) 与……有联系，把……联系起来 拓展 医生认为吸烟与肺癌有关。 ______________________________________________ Doctors connect smoking with lung cancer. 这座桥把我们的村庄与外界连接起来。______________________________________________ The bridge connects our village with the outside world. 4. The whole world is connected. 网络连接了全世界。 练习 5. Besides, not everything we read on the Internet is true or good for us.另外，我们在网上看到的东西并不都是真实的、有益的。 考点1 1) besides与except用于肯定句时，except意为“除……之外（不包括）”；besides意为“除……之外（包括）”。 翻译 除了这支笔外，他还有另一支黑色铅笔。（共2支笔） ______________________________________________ He has another black pencil besides this one. 我们都通过了考试，山姆除外。（就山姆一人不及格）______________________________________________________ We all passed the exam except Sam. 考点 4. The whole world is connected. 网络连接了全世界。 2) except前几乎总有all、any、every、no及其复合词等词 除了最后一份作业没完成，其余他都完成了。 ______________________________________________ He has finished all the homework except the last one. 3) except后接名词、代词、动名词和动词原形，这时except=but； 但except后跟副词、介词短语时，不能用but代替。 他只是清理了桌子,别的啥事也没干。 ______________________________________________ He did nothing except/ but clean the table. 及时练习 ①________(除……之外)these two questions，she has another one to ask. ②All students were are the playground ________(除……之外)Jim because he was in the teachers' office. ③这个教室里除了一张桌子外，什么也没有。 There is nothing ________ a table in the classroom. Besides except but inside, cancel, connect, doubt, brain 用方框中所给词的适当形式填空。 1. There was no_________whether Yao Ming could become a great basketball player . 2. Doctors believe that lung (肺) cancer is ___________with smoking. 3. Can you tell me why the school sports meet was__________ ? 4. The purpose of his research is to compare computer functions with________working. 5. He was very happy when he read the letter ________ the envelope. doubt connected cancelled brain inside 情景提示，写出句子或将句子补充完整： 1.告诉同学们应该要正确地使用手机，你可以说： Mobile phones_____________________________ 2.想了解你的朋友是否去过迪士尼乐园，你可以这样问： _______________________ the Disney Land? 3.当你知道Tony每天玩电脑游戏时，你这样劝他： You shouldn't_________________________ 4.电脑不仅改善了我们的生活，同时也带给我们很多问题， 可以这样说：Computers__________________________________ _________________________________________________. should be used properly. Have you ever been to spend too much time playing computer games have not only improved our lives but also brought us problems $