人教高中英语必修3unit4language points(19).pptxVIP

Book 3 Unit 4 Astronomy: the science of the stars Language points;Step I : Crazy reciting: ;Step I : Crazy reciting: ; Learning objectives: 1.Speak out meanings of underlined words and phrases through self-learning. 2.Write word formation and summarize usages of key words by practicing. 3.Translate sentences using key words. ; ; ;to break out. These clouds not only blocked out the pilots’ sight but also damaged the engine system. Luckily, the pilots watched out carefully and prevented the spaceship from crashing in time. ;II. Analyze sentence patterns. 1.Physicists have proved the theory that its gentle climate and the pull of its gravity are similar to the earth’s. 2.And astronomers have found that oxygen atoms and carbon dioxide, which are fundamental to life, exist in its atmosphere through satellites. 3.Cheered up by this news, biologists, in their turn, began to do some research to remove people’s puzzles—Now that there are some suitable conditions, does life really exist on this globe?;Step IV. Key words and phrases: 1.harmful 1). In contemporary culture, physical expressions of anger are generally considered too socially harmful to be tolerated. (2014·江苏高考阅读C) 2). These days, breaking traffic rules and littering are not uncommon, causing serious harm to life and the environment. (2013·安徽高考书面表达) 3). If you want to solve the problem in this way, there is no harm in calling him. 总结用法： ;Exercise: (1)用所给词的适当形式填空 ①As we all know, a bad eating habit is _____ (harm) to one’s health. ②As far as I’m concerned, there is no ____ (harmful) in making an apology to him first. (2).一句多译 众所周知，过量喝酒对你的身体有害。;2. exist 1) In my view, new architectural styles can exist perfectly well alongside an older style. (14·安徽高考) 2)They can’t exist on the money he’s earning. 3) There exists a good way to solve the existing problem at present. 4) No one knows when such a custom first came into existence. 总结用法：