Unit 20 New Frontiers IV 课件（北师大选修7）.ppt

③Another unmanned spacecraft “Shenzhou Ⅱ”， ________China greets the 21st century, marks new progress in the countrys space program. A．for which B．from which C．in which D．with which 答案　D　[只要把从句部分转换为China greets the 21st century with Shenzhou Ⅱ就不难看出答案为D项。] During the Second World War, when Flemings discovery was first helping to cure people, the US Navy was looking for ways of improving the accuracy of their missiles.二战期间，当弗莱明的发现首先用来为人们治病时，这时美国海军正在寻找能提高他们导弹精准度的方法。 【句式分析】 这是一个主从复合句。句中when引导的是时间状语从句，the US...missiles是主句。 【归纳拓展】　 过去进行时表示过去某时正在进行的状态或动作。常用的时间状语有：this morning, the whole morning, from nine to ten，last evening, when, while等。 5． 【感悟高考】 —Did you catch what I said? —Sorry.I________ a text message just now.(2012·四川) A．had answering B．have answered C．would answer D．was answering 答案　D　[考查动词时态。句意为：“你听懂我所说的话了吗？”“对不起。我刚刚在回短信。”根据句意及时间状语just now可知，回短信的动作正好是发生在问话人说话的那一时间点，即表示过去某一时间点正在发生的动作，故选过去进行时态，选D。] 【单项填空】 ①The way that he did it was different ________ we were used to. A．in which B．in what C．from what D．from which 答案　C　[be different from是固定搭配，故可排除A、B两项；what引导宾语从句，又在宾语从句中作宾语，这是which所不具有的用法，故C项正确。] ②—Is there anything wrong, Bob? You look sad. —Oh, nothing much.In fact, I ________of my friends. A．have just thought B．was just thinking C．would just think D．will just be thinking 答案　B　[过去进行时表示过去某时正在进行的状态或动作，故选B项。根据所提供的情景可判断出刚才想起了自己的朋友。现在完成时表示已经完成的动作或存在的状态。过去将来时表示从过去某个时间看将要或将来发生的事。一般将来时表示将要发生的动作或存在的状态。] not to mention更不用说，还不算，此外还有 He has not learnt English, not to mention French. 他连英语都没学，更别说法语了。 He has a big house and an expensive car, not to mention a villa in France.他有一所大房子和一辆昂贵的汽车，更别提他在法国的别墅了。 1． 【归纳拓展】　 not to mention固定搭配，可以当作一个词组独立使用，不用变形。 同义词组：without mentioning, let alone I dont even know him, without mentioning his cellphone number. 我甚至都不认识他，更别说知道他的手机号码了。 There isnt enough room for us, let alone any guests. 连我们都没有足够的空间，更不用说客人了。 【完成句子】 Dave is handsome and smart，__________________________________________________ a good athlete. 大卫人长得帅又聪明，此外