2013年高中 Unit 5 History and People SectionB同步精品课件 重庆大学版必修5

课件23张PPT。Section B　Language Focus课堂互动探究Unit 1预习多维感知 Section B预习多维感知Ⅰ.词语翻译
1．get sick________________
2．all day long________________
3．be based on________________
4．together with________________
5．according to________________
答案:1.生病　2.整天　3.基于　4.和……一起
5.根据Ⅱ.语法现象体验
1．(2011年高考陕西卷)I ________ through that bitter period without your generous help.
A．couldn’t have gone　　　　B．didn’t go
C．wouldn’t go D．hadn’t gone
解析：选A。考查虚拟语气。句意：如果没有你慷慨的帮助，我不可能度过那段痛苦的时期。与过去事实相反的虚拟语气主句用would/could/should/might have done，根据句意可知应选A项。2．(2011年高考天津卷)I ________sooner but I didn’t know that they were waiting for me.
A．had come B．was coming
C．would come D．would have come
解析：选D。考查虚拟语气。句意：我不知道他们一直在等我，要不然我肯定会迅速点儿。根据句意可知，这里是对过去的虚拟，故主句用“would have done”的形式，故选D项。3．(2011年高考福建卷)—Pity you missed the lecture on nuclear pollution.
—I ________ it，but I was busy preparing for a job interview.
A．attended B．had attended
C．would attend D．would have attended
解析：选D。考查虚拟语气。由but I was busy preparing for a job interview可知，答话人由于忙着准备求职面试，并未去听讲座，由此可知空白处是对过去的虚拟，所以空白处应用“情态动词＋have done”结构。课堂互动探究虚拟语气(Ⅰ)
虚拟语气表示所说的话不是一个事实，而是一个与事实相反的假设,或表示不可能实现的愿望或空想。虚拟语气是通过谓语动词的变化来体现的。规则展示
一、在虚拟条件句中的谓语动词变化如下：If I were you，I would go to see it myself.
如果我是你，我就亲自去看看它。(与现在事实相反)
If you had not stayed up late，you could have caught the train.
你如果不熬夜的话，就会赶上那趟火车的。(与过去事实相反)
If I had enough money next month，I would buy a car.
如果下个月我有足够的钱，我就去买辆车。(与将来事实相反)规则运用
1．But for the help of my English teacher.I ________the first prize in the English Writing Competition.
A．would not win B．would not have won
C．would win D．would have won
解析：选B。此处虚拟语气表示与过去事实相反，主句谓语动词用would/should/could/might＋have done结构，故选B。2．He hesitated for a moment before kicking the ball，otherwise he ________a goal.
A．had scored B．scored
C．would score D．would have scored
解析：选D。otherwise意为“否则的话”，表示含蓄条件，与过去事实相反，故须用would have scored。规则展示
二、虚拟语气的条件从句应注意：
1．当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，动词的虚拟形式要根据所表示的时间来调整。
If I were you，I would have gone to ask him for help.(从句说的是现在，主句指的是过去)
如果我是你，我就会去请他帮忙。If he had taken my advice earlier，he would be much better now.(从句说的是过去，主句指的是现在)
如果他早点听我的建议，他现在就会好得多。2．如果虚拟条件状语从句中有had/were/should，可以把其提至句首，而把连词if省略，从而形成倒装。
Were I ten years younger，I would study harder.
如果我年轻十岁，我就会更加努力学习。
Had you come here earlier，you would have caught the bus.
如果你早点来，你就会赶上那班公共汽车了。3．有时假设的情况并不是用条件从句表示，而是通过一些介词短语，这种句子叫含蓄虚拟条件句。用or，otherwise，with，without，but for(要不是)，under等词语可以表示含蓄虚拟条件句。
He called to tell me the news，or I would have known nothing about it.
他打电话告诉我这个消息，否则的话我对此毫不知晓。I would buy a house with a garden with a million yuan.
有一百万我就买座带花园的房子。
Without electricity human life would be quite difficult today.
没有电的话，今天人们的生活会十分艰难。
But for my brother’s help，I would not have finished.
要不是我哥哥的帮助，我是无法完成的。4．有时假设的情况可以通过上下文或其他方式表现出来。
He would have come to see you yesterday，but he had to attend an important meeting.
本来昨天他是可以来看望你的，但是他要参加一个重要会议。I was late this morning.I should have got up earlier.
我今早迟到了，我本应该早点起来的。
I hadn’t worked hard at it，otherwise I would pass the driving test.
当时我没有用心学开车，不然我会通过那次驾驶考试的。规则运用
3．Without the air to hold some of the sun’s heat, the earth at night ________，too cold for us to live.
A．would be freezing cold
B．will be freezing cold
C．would be frozen cold
D．can freeze coldly解析：选A。without引导含蓄条件句，整个句子所表达的意思和事实相反，须用虚拟语气，指现在情况，用“would/should/could/might＋动词原形”。句意：如果没有空气保存一部分太阳的热量，夜晚地球上就会太冷，令人无法居住。4．So you have to leave.How nice it ________if you ________a bit longer!
A．would be；could stay
B．is；can stay
C．should be；stay
D．was；are able to stay
解析：选A。句意：这么说你得离开了。要是你能多呆会儿那该多好啊！从第一句可知，对方不能再呆了，所以后边应用与现在事实相反的虚拟语气，从句用过去时，主句用(情态动词＋)动词原形。5．________ fired，your health care and other benefits will not be immediately cut off.
A．Would you be B．Should you be
C．Could you be D．Might you be
解析：选B。句意：如果你被解雇了，你的医疗保险和其他福利不会被马上取消。此处是对将来的假设，其基本形式为If you should be fired，本题中省略了if而采用了倒装结构。