Unit 4 Discover Useful Structures 课件-2022-2023学年高二英语人教版（2019）选择性必修第二册

U4语法课件 Period Three　Learning About Language Learning Aims(学习目标) Discover useful structures—Past participles vs the -ing form.(重点难点) Activity 1　 阅读下列句子，认真感悟加颜色部分，并完成方框下的小题 1.The next day was clear and mild，and they were pleased to see the beautiful mountains looking out over the city. 2.Seen from the train window，the mountains and forests of Canada looked massive. 3.However，they did not anticipate seeing such an open country，and were truly amazed. 4.For both of them，the thought of crossing the whole country by rail was exciting. 5.Before starting out，they spent a couple of days in Vancouver，seeing the sights. 1.句1和句3中，加颜色词都是形容词化的过去分词，在句中作 ，表示主语的性质或所处的状态。 2.句2中的过去分词短语在句中作 。作状语用的过去分词(短语)和句子的主语之间有逻辑上的动宾关系，或称为 关系。 3.句4中的加颜色词是-ing形式作 。 4.句5中的加颜色部分是-ing短语作 。 表语 状语 被动 表语 状语 Activity 2　 一、过去分词和动词-ing形式作表语 He looked worried after reading the letter. 看完信后，他显得很忧虑。 When we heard of it，we were deeply moved. 当我们听说这件事时，我们深受感动。 We were surprised at what he said at the meeting. 我们对他在会上讲的话很惊讶。 His words were discouraging，which made many people discouraged. 他的话令人泄气，使得很多人灰心丧气。 The frightened look on her face suggested that she was frightened by the frightening scene. 她脸上害怕的表情表明她被这恐怖的场面吓着了。 总结：表语常放在be，get，feel，remain，seem，look，become等之后；过去分词作表语表示人或物的心情或状态等，也可理解为心情或状态受到外界影响，有“感到……”之意；动词-ing形式作表语表示人或物的自身特征，有“令人……”之意。 二、过去分词和动词-ing形式作状语 Used for a long time，the book looks old. 由于用了很长时间，这本书看上去陈旧了。 Using the book，I find it very useful. 在使用这本书时，我发现它很有用。 Seen from the top of the mountain，the scenery was really fascinating. 从山顶看去，风景真迷人。 Seeing the scenery from the top of the mountain，I was fascinated by the autumn colours. 从山顶看风景，我被秋色迷住了。 Following the students，the headteacher entered the classroom. 跟着学生，班主任进了教室。 Followed by the students，the headteacher entered the classroom. 被学生跟着，班主任进了教室。 When he was asked about his address，the boy didn’t respond. ＝When asked about his address，the boy didn’t respond. 当被问到地址的时候，这位男孩没有回答。 Though they had been warn