Unit4_Global_warming课件23(新人教版选修6）.ppt

;Topics;Topics;参考答案 Words：1.consume　2.subscribe　3.trend　4.data　5.结果；后果　6.陈述；声明　7.种类；范围　8.看一下/一瞥　9.平稳的；持续的　10.widespread　11.average　12.existence　13.pollution　14.growth　15.电的；与电有关的　16.使恢复；使振作　17.贡献　18.分歧；不一致 phrases：1.with　2.about　3.to　4.of　5.in　6.up　7.on　8.whole　9.with　10.as patterns：1.There is no doubt　2.so long as;Part1　Warming up Reading;1．What is mainly discussed in the text? A．Carbon dioxide. B．Water vapour. C．Gases in the atmosphere. D．Temperature increase. [答案]　D;2．According to the text，which of the following statements is NOT ture? A．Carbon dioxide is a byproduct of the burning of fossil fuels. B．All the scientists agree that the burning of more and more fossil fuels leads to the increase of carbon dioxide. C．If we stop adding carbon dioxide and other greenhouse gases from now on，the temperature will stop going up. D．It is still not clear what the effects of global warming will be. [答案]　C;3．George Hambley thinks that more carbon dioxide________. A．may lead to a catastrophe B．will do good rather than harm to the earth C．will cause the spread of diseases D．will encourage a greater range of animals，thus threatening human beings [答案]　B;4．By asking the two questions at the end of the article，the writer implies that________. A．we can do nothing about global warming B．global warming is caused by human beings C．we should not be too worried about global warming D．human beings still have more worries about the effects of global warming [答案]　C;5．What will happen if we do nothing about global warming? A．It would cause the sea-level to rise，storms，droughts，famines and so on. B．The temperature will be surely lower. C．It doesn’t matter. D．It has nothing to do with me. [答案]　A; 1．So how has this come about and does it matter? 所以这是怎样发生的而这又有什么意义呢？;[归纳拓展] come about发生　 类似意思的词或短语还有：happen，take place，occur，break out，它们都不能用在被动语态中，用法各有不同： take place表示“发生、举行、举办，一般指非偶然事件的发生，即这种事件的发生一定有某种原因或事先的安排； happen一般用于偶然或突发性事件： occur表示“发生或想到、突然想起”，意为“发生”时相当于happen； break out表示“发生、爆发”，常指战争、灾难、疾病或