Book 4 Unit 3 课时学案 Grammar动词-ing 形式作表语、定语和宾语补足语【用法呈现】动词-ing 形式作表语 1. 一些表示状态、品质、情绪的动词-ing 形式可作表语，这时系动词可以是 be, become, get, look, seem, appear, sound, feel, keep 等。如：It’s amazing that you should know that!The reason he gave was not very convincing.—What do you think of the story I told you just now?—It sounds interesting. I like it very much. 2. 动词-ing 形式作表语，有时表示主语的内容,这时系动词只能是 be。有时为了保持句子平衡，表语和主语可以互换位置。如：His job is teaching physics in a local middle school.His favorite sport is playing football.—Look at the big house over there. Why not buy it for our father?—OK. As far as I know, his dream is living in a big house (= living in a big house is his dream).动词-ing 形式作定语1. 单个的动词-ing 形式作定语位于被修饰名词的前面，既可以表示被修饰成分的作用或功能，也可以表示被修饰成分的动作或状态。如：You need a driving license.2. 动词-ing 形式作后置定语，往往表示动作正在发生或与谓语动词所表示的动作同时发生，其作用相当于一个定语从句。如：The boy breaking the rule was punished by his teacher.= The boy who broke the rule was punished by his teacher。3. 动词-ing 形式也可以用作非限制性定语，相当于一个非限制性定语从句。这时，它与句子其他部分之间用逗号分开。如：Her uncle, working as a professor, lives in Oxford. = Her uncle, who works as a professor, lives in Oxford.动词-ing 形式作宾语补足语 1. 动词-ing 形式作宾语补足语，对句子的宾语起补充和说明作用，强调动作的主动、正在进行。常跟动词-ing 形式作宾补的动词有 catch, have, keep, get, see, hear, find, feel, leave, make, want, start, notice, observe, watch, set 等。如：When I entered the room, I found him watching TV. I heard them singing that nice English song.2. 动词-ing 形式作宾补时，句子可以变为被动语态的句子。变为被动...
