Unit 2 Discovering useful structures 课件-2022-2023学年高中英语人教版（2019）必修第三册

Unit 2 Morals and Virtues Period 3 Grammar V-ing Lead-in lead-in: review the useful structure in the last unit 这个电影又感人又有趣 This film is interesting and moving. V-ing as the predicative(表语) ZQX (Z) - lead-in: review the useful structure in the last unit 这个正在微笑的女孩在雪地里翩翩起舞 The smiling girl is dancing in the snow. V-ing as the attribute(定语) Activity 1：Read and discuss the functions and meanings of V-ing. form. 1 ... her brother complained, thinking of the high tuition fees. 2 Thinking of all the people still in need of help, Dr Lin opened a private clinic. 3 The new People's Republic of China saw Dr Lin Qiaozhi playing a key role. adverbial adverbial object complement Conclusion 现在分词(v-ing)作状语，其动作发出者是主句的_____, 呈___(主/被)动关系。一般置于_____或______。 现在分词(v-ing)作宾语补足语，常放在宾语后面, 对宾语进行补充说明表示一个____________________的动作, 强调一个过程或一种状态。 句首 句尾 主语 主 her brother 正在进行的主动性 -ing形式作状语 作时间状语 公式 作原因状语 作让步状语 作方/伴状语 作结果状语 Doing sth, 主句. = When(While) +从句，主句 Doing sth, 主句. = Because(As) +从句，主句 Doing sth, 主句. = Although (Though) +从句，主句 主句,doing sth, = 句子1+ and 句子2. 主句, （thus）doing sth, = 句子1; as a result, 句子2. 1.现在分词作时间状语 现在分词作时间状语时，相当于时间状语从句。可在现在分词前加连词“when, while, until”等，使其时间意义更明确。 Walking in the park, she saw an old friend. ＝When/while (she was) walking in the park, she saw an old friend. 当她在公园里散步时，她看到了她的一个老朋友。 2.现在分词作原因状语 现在分词作原因状语时，可转换为由since, because或as引导的原因状语从句，这类状语多放在句子的前半部分。 Being ill, he couldn't go to school. ＝As/Because/Since he was ill, he couldn't go to school. 3.现在分词作条件状语 现在分词作条件状语时，可转换为if, once或unless等引导的条件状语从句。 Working hard, you'll make great progress. ＝If you work hard, you'll make great progress. 4.现在分词作让步状语 现在分词作让步状语时，相当于一个以though/although引导的让步状语从句。 尽管被告知了很多次，但他还是犯了同样的错。 Having been told so many times, he still made the same mistakes. ＝Although/Though he had been told so many times, he still made the same mistakes. 5.现在分词作方式/伴随状语/结果状语 现在分词作方式，结果或伴随状语时，通常不能转换为状语从句，但可用并列分句代替。 I stood by the door, not daring to say a word. 我站在门旁，一个字也不敢说。 ＝I stood by the door, and didn’t