人教版高三英语二轮复习 主旨大意课件.ppt

主旨大意是文章的核心，包括对title,main idea或者main purpose的判断选择，也会以“mainly tell about”一类的形式出现。做这类题时，仔细阅读文章或段落的首尾句是关键。多采用浏览法，一般不需逐句细读，只选读文章的首段、尾段，或每段的首句和尾句，重点搜索主题线索和主题信息。但是当讲述一个故事时，则要抓住每段文字的关键句。2021/8/9 星期一1典例点典例点拨 (2011江苏卷)We know the famous ones the Thomas Edisons and the Alexander Graham Bells but what about the less famous inventors?What about the people who invented the traffic light and the windshield wiper(雨刮器)?Shouldnt we know who they are?2021/8/9 星期一2典例点典例点拨 Joan McLean thinks so.In fact,McLean,a professor of physics at Mountain University in Range,feels so strongly about this matter that shes developed a course on the topic.In addition to learning“who”invented“what”，however,McLean also likes her students to learn the answers to the“why”and“how”questions.According to McLean,“When students learn the answers to these questions,they are better prepared to recognize opportunities for inventing and more motivated to give inventing a try.”2021/8/9 星期一3典例点典例点拨 Her students agree.One young man with a patent for an unbreakable umbrella is walking proof of McLeans statement.“If I had not heard the story of the windshield wipers invention，”said Tommy Lee,a senior physics major,“I never would have dreamed of turning my bad experience during a rainstorm into something so constructive.”Lee is currently negotiating to sell his patent to an umbrella producer.2021/8/9 星期一4典例点典例点拨 So,just what is the story behind the windshield wiper?Well,Mary Anderson came up with the idea in 1902 after a visit to New York City.The day was cold and stormy,but Anderson still wanted to see the sights,so she jumped aboard a streetcar.Noticing that the driver was struggling to see through the snow covering the windshield,she found herself wondering why there couldnt be a builtin device for cleaning the window.Still wondering about this when she returned home to Birmingham,Alabama,Anderson started drafting out solutions.One of her ideas,a lever(操作杆)on the inside of a vehicle that would control an arm on the outside,became the first windshield wiper.2021/8/9 星期一5典例点典例点拨 Today we benefit from countless inventions and innovations.Its hard to imagine driving without Garrett A.Morgans traffic light.Its equally impossible to picture a world without Katherine J.Blodgetts innovation that makes glass invisible.Can you picture life without clear windows and eyeglasses?2021/8/9 星期一6典例点典例点拨 59.Which of the following can best serve as the title of this passage?A.How to Help Students to Sell Their Inventions to Producers?B.How to Design a Builtin Device for Cleaning the Window?C.Shouldnt We Know Who Invented the Windshield Wiper?D.Shouldnt We Develop Invention Courses in Universities?2021/8/9 星期一7典例点典例点拨【点拨】主旨大意题。通常对文章题目的选择其实就是对文章主体内容的归纳，对文章主旨的总结。选择最佳标题时，首先要弄清文章的大意。可以先从文章的首尾段入手。文章第一段最后一句Shouldnt we know who they are？并且用了疑问句加强语气，后面讲述发明雨刮器的故事及其作用，并且这个故事启发了一个学生进行了自己的发明创造，由此可见学习这样的故事的重要性。可见C选项正确。2021/8/9 星期一82021/8/9 星期一9