2018-2019人教新目标高中英语选修六课件：unit 5 learning about language

1、Unit 5 The power of nature Learning about Language,1.Review the useful expressions of the text. 2.To learn the using of v.-ing form.,Learning aims,分析课文句子中的-ing属于什么用法： Having collected and evaluated the information, I help other scientists to predict where lava from the volcano will flow next and how fast. 收集和评估这些信息之后，我就帮助其他科学家一起预测火山喷发的熔岩接着将往何处流，流速是多少。,Leading-in,Having collected and evaluated the information为 -ing构成的现在分词的完成式, 在句中作时间状语，相当于after引导的时间状语从句。,Grammar,-ing 形式的用法,(= While I was walking

2、along the street, ),1. -ing 形式作状语,(= Though he knows where I live, ),2. ing形式的完成式,(1) _ (bit) by the snake for three times, she feels frightened when seeing the snake. (2)The students stood there, _ (surround) the teacher. (3) (2016北京高考) Newly-built wooden cottages line the street, _ (turn) the old town into a dreamland.,【即学即练】完成句子。,Having been bitten,surrounding,turning,(4) _ (tell) him the answer several times, I didnt know whether he could understand. (5) _ (tell) the answer several times, he

3、 still couldnt solve the question.,Having told,Having been told,主动,被动,归纳,主句主语为动作的发出者。,主句主语为动作的承受者。,使用-ing形式需注意的几个问题。,分词(短语)作状语时，其逻辑主语必须与句子的主语一致。如果不一致，必须用独立主格结构来表示，也就是在分词前面加上它的逻辑主语。 My wife had a long talk with Sally, explaining why she didnt want the children to play together. 我妻子与莎莉谈了很长时间，解释她为什么不想让孩子们在一起玩。(现在分词explaining是句子主语my wife做的动作，它们之间是主动关系,即explaining的逻辑主语就是句子的主语my wife ),The train having gone,we had to wait another day. 火车已经开走了，我们不得不再等一天。 （the train逻辑主语 + having gone 即为独立主格结构）,【特别提醒】,分词

4、(短语)作状语时，分词(短语)前面可以加上连词或 介词(如but，and，though等)，但是分词(短语)和句子之间不能用并列连词。因为并列连词接的是两个并列成分，而分词(短语)只是全句的一个状语部分。分词(短语)和主句之间可用逗号。,例如: 误: Having been told many times，but he still couldnt understand it. 正: He was told many times, but he still couldnt understand it.或 (Though )having been told many times，he still couldnt understand it.,-ing的一般式和完成式现在分词都可以表示先后接连发生的动作。在可能引起误解的场合应该用现在分词的完成式表示先发生的动作。,例如: Opening the drawer，he took out his wallet. (=He opened the drawer and took out his wallet.) 他打开抽屉，拿出钱包。 Coming

5、into the room，he put down his bag. (=He came into the room and put down his bag.)他走进房间，放下提包。,Having brushed his teeth，Mr Brown came downstairs for breakfast. 布朗先生刷过牙，就下楼来吃早饭。 (此句如写成:Brushing his teeth, Mr Brown came downstairs for breakfast.可能指“边刷牙，边下楼”。),分词(短语)的否定形式是在分词(短语)前面加上 not, never 等否定词构成。例如: Not fearing the fire, the child touched and got a finger burnt. 小孩儿不知道怕火，用手去摸，把手指烫了。 Not knowing how to find the subway, I asked a policeman for help. 我不知道怎样找到地铁，就去找警察帮忙。,1. (2018江苏高考) Around 13,500

6、 new jobs were created during the period, _ (exceed) the expected number of 12,000 held by market analysts. 在此期间创造了约13,500个新工作岗位,超出了市场分 析师预计的12,000个就业岗位。 2. (2017北京高考)The national park has a large collection of wildlife,_（range)from butterflies to elephants. 国家公园里有大量的小至蝴蝶, 大到大象的野生动物。,【高考链接】,exceeding,ranging,3.(2016浙江高考)I had as much fun sailing the seas as I now do （work）with students. 我过去航海和现在与学生们打交道一样开心。,working,4.(2016天津高考)The cooling wind swept through our bedroom windows, （make) air condit

7、ioning unnecessary. 凉爽的风从我们卧室的窗户吹进来,这样我们的空调没必要开了。,making,每空填一词，使该句与所给句子的意思相同 1. Because he was ill, he didnt go to school. _ _, he didnt go to school. 2. When she was walking along the street one day, she met an old friend of hers. _ _ the street one day, she met an old friend of hers.,Being ill,Walking along,Class exercises,3. If it is sunny, well go for a picnic tomorrow. _ _ _, well go for a picnic tomorrow. 4. After she had finished her homework, the little girl began to watch TV. _ _ her homework, the little girl began to watch TV. 5. Because they had been warned by the teacher, they didnt make such mistakes. _ _ _ by the teacher, they didnt make such mistakes.,It being sunny,Having finished,Having been warned,Finish exercise 4 on Page 37.,Homework,Better to light one candle than to curse the darkness. 与其诅咒黑暗，不如燃起蜡烛。,

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