2022年人教版高中英语选择性必修第二册同步课件Unit 5 SectionⅡ Discovering Useful Structures.pptxVIP

UNIT 5　FIRST AID;Section Ⅱ　Discovering Useful Structures;夯基提能作业;单元语法精析 ;复习动词-ing形式 语法点拨 动词-ing形式是动词的一种非谓语形式，由动词原形加-ing构成，包括-ing分词和-ing动名词。可以在句子中作主语、表语、宾语、宾语补足语、状语和定语。动词-ing形式的时态和语态为：;此外，动词-ing形式的否定形式是在前面加not。现在分词的一般式通常表示其动作与谓语动词的动作同时发生。现在分词的完成式所表示的动作通常在谓语动词的动作之前发生。 She sat there, reading a novel. 她坐在那里看小说。 Being repaired, the swimming pool won’t open until next month. 由于正在被修理，直到下个月游泳池才会开放。;Having finished her homework, the little girl began to watch TV. 做完作业后，这个小女孩开始看电视。 Having been warned by the teacher, the students didn’t make such mistakes. 被老师警告之后，学生们不再犯这样的错误了。;一、动词-ing形式的用法 1．作主语 Seeing is believing. 眼见为实。;通常为了避免句子主语过于冗长，用it作形式主语。 It’s nice talking with you. 和你谈话很高兴。 2．作宾语 Jim dislikes eating chocolate. 吉姆不喜欢吃巧克力。;后面须接动词-ing形式作宾语的动词(词组)： ____　____　少____　avoid　miss　put off/postpone ____　____　多____　suggest　finish　practice ____　____　______　enjoy　imagine　can’t help ____　____　______　admit　deny　dislike ____　____　莫____　escape　risk　excuse ____　____　不____　stand　keep　mind;3．作表语 Their job is cleaning the window. 他们的工作是擦窗户。 4．作定语 (1)动词-ing形式可以单独作定语。 a smiling face笑脸　　　a leading figure领导人物 (2)当-ing分词短语作后置定语时，可以转换为定语从句。 She went on board the train leaving for Beijing. ＝She went on board the train which was leaving for Beijing. 她坐上了去北京的列车。;5．作宾语补足语 I found the parade quite interesting to watch. 我觉得观看游行很有趣。 6．作状语 -ing分词作状语表示在进行一个动作的同时所进行的另一个动作，它对谓语动词起修饰和陪衬的作用。-ing分词作状语可以表示时间、原因、条件、让步、结果、方式或伴随情况?? Having cleaned the rooms we began to weed the garden.(时间) 打扫完房间，我们开始在花园里除草。;Having no interest in the topic, he didn’t go to the lecture.(原因) 由于对这个话题没有兴趣，他没去听讲座。 It will take you half an hour to get to the station, allowing for traffic delays.(条件) 如果把路上的耽搁算进去，你要花半小时才能到达车站。 Granting the achievements to be great, there is still something to be desired.(让步) (尽管)认可成就是伟大的，(但)仍有一些要改进的地方。;My car was caught in a traffic jam, thus causing the delay.(结果) 我的车遇到了交通堵塞，因此延误了。 Travelling by train, we visited a number of cities.(方式) 我们坐火车游览了很多城市。 Mary sat by the window of the classroom, reading a bo