Unit 4 语法 教案-高中英语人教版（2019）选择性必修第一册.docx

共 案个 案Unit 4 Discovering useful structures动词-ing形式的用法 一、 教学目标1. To understand v-ing in the reading passage.2. To master the functions of v-ing in the sentence.3. Use v-ing properly for epressions and writing.二、教学重难点1. Understanding the functions of v-ing in the sentence.2. Memorize the rules clearly.三、 教学过程Step1. Lead inFind out sentences that use v-ing in the reading passage.(p.38)Step2. Presentation1. Let the students find sentences themselves.2. Lead students to analyse sentence structures.3. Use PPT to present uses of v-ing.4. Students try to translate some sentences. Step3.Language points1. ing 分词的构成一般式（主动）doing；（被动）being done完成式（主动）having done （被动）having been done复合结构 sbs doing否定式: not+ -ing/not having(been) done2. 一般式和完成式的用法-ing 分词的一般式表示和谓语动词所表示的动作同时进行的一个动作；完成式表示先于谓语动词动作之前的一个动作。如：Walking along the street, he caught sight of an old friend of his.Not having studied his lessons very hard, he failed the examinations.3. -ing分词的被动式当ing 分词与它的逻辑主语构成被动关系时，需要用被动形式。根据ing分词动作发生的时间，ing分词的被动式分为一般被动式(being done)和完成被动式(having been done), 如：The question being discussed is very important. Having been praised by the teacher, he works even harder.4. -ing分词的句法功能1)-ing 分词作主语Learning English has become a part of his life.It is no use trying to repair the ship. 2) -ing分词作宾语以下动词必须跟-ing分词作宾语：admit/appreciate/avoid/consider/delay/deny/dislike/enjoy/escape/excuse/fancy/finish/imagine/keep/mind/miss/postpone/put off/practise/resist/risk/stand/ stop/ suggest/ give up/cannot help3）-ing 分词作表语。如： Our job is playing all kinds of music. 注：一般来讲，-ing分词作表语有两种情况，一是名词性，这时主语和表语可以互换。如：Playing all kinds of music is our job.二是形容词性，表示主语的性质和特征4） -ing分词作定语可以表示 (1) 所修饰名词的用途。如： a waiting room(=a room for waiting) 候车室（2）所修饰词的性质特征。如： exciting news 令人激动的消息(3)所修饰名词正在进行的动作，可以换成定语从句形式。如：a sleeping child (=a child who is sleeping)正睡觉的孩子注：分词短语作定语须放在所修饰词之后，例如：the man standing at the gate=the man who is standing at the gate5) 在see,hear,feel,watch,notice等感官动词后可以用-ing形式做宾语补足语。这时-ing 形式和句子的宾语之间存在着逻辑上的主谓关系，并且-ing 形式表示宾语正在进行的动作。如： He saw a boy climbing the tree. Do you hear someone knocking at the door? 有人敲门你听见了吗?6)-ing分词作状语(1)-ing分词在句中可以作伴随状语，常放于句后，表示主语正在进行的另一个动作，来对谓语表示的主要动作加以修饰或作主要陪衬。如：They sat in front of the building, laughing and chatting.He worked late yesterday, preparing for the lecture.(2)-ing分词可以作时间状语，常放在句首，如：(While)Walking in the street,I caught sight of a tailor's shop.(3)-ing分词可以作原因状语，常放句首。如：Being ill, he can't go to school.(4)-ing分词可以作条件状语，常放句首。 Turning to the right, youll find the post office there.(5)-ing分词可以作结果状语，常放句末。 He turned off the light, seeing nothing.5. -ing分词的复合结构物主代词/人称代词/名词所属格或普通名词+ing分词(1) 作主语（须用物主代词或名词所属格）His/Toms not being chosen made us disappointed.(2)作宾语(除了物主代词和名词所有格，也可用普通名词或代词宾格） He was awakened by someones knocking at the door.(3)作状语 （须用普通名词或主格代词,亦称独立主格结构）Time permitting, well deal with the text.四、 教后反思（不少于100字） 学科网（北京）股份有限公司