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1、Unit 2 Morals and VirtuesPeriod 3 Discovering Useful Structure导学案1. Learn the structure, form and features of v-ing as object complement and adverb.2. Learn understand the functions and meaning of v-ing as object complement and adverbial in a real context. 3. Learn to describe someones behaviors and
2、 its causes, purposes, results and accompaniment.1. Learn to understand the functions and meaning of v-ing as object complement and adverbial in a real context.2. Learn to describe someones behaviors and its causes, purposes, results and accompaniment. Step 1 Lead in-Pair workObserve the sentences b
3、elow and discuss the functions of the italicised -ing form.1. .her brother complained, thinking of the high tuition fees.(作_，表_)2. Thinking of all the people still in need of help, Dr Lin opened a private clinic.(作_，表_)3. The new Peoples Republic of China saw Dr Lin Qiaozhi playing a key role. (作_ s
4、ee sb _ sth)4. Though Lin Qiaozhi never married, she was known as the “mother of ten thousand babies”, having delivered over 50,000 babies in her lifetime.(作_，表_)5. At times she was even seen riding a donkey to faraway villages to provide medical care. (作_ see sb _ sth)作宾补：动词-ing形式置于某些及物动词和宾语之后, 补充说
5、明宾语的_或_。作状语：动词-ing形式可以作状语, 修饰动词, 表示时间、_（见1和2）、结果、条件、_（见4）、行为方式或伴随情况等。Step 2 Practice1. A Mexican farmer was surprised to see smoke _(rise) from a small part of his land. 2. I felt my heart _(beat) violently when I was seeing the 70th anniversary of foundation of China. 3. They see a man _(come), _(h
6、old) a bird cage.4. The man may find the bird really _(annoy), who usually makes a noise. Step 3 More about v-ing as the object complement1. 在感官动词后作宾语补足语在see, hear, feel, watch, notice等感官动词后, 表示一个正在进行的主动的动作, 强调一个过程或一种状态。In the crowded cafe, I heard a friendly voice saying, “You can share my table. ”
7、He saw a girl wandering on the street this time yesterday. 注意：see/hear/watch/feel/notice+sb/sth+doing sth强调动作正在进行see/hear/watch/feel/notice+sb/sth+do sth强调动作发生的全过程/全过程已经结束了，Today on my way home, I saw a man running along the street hurriedly. I saw him enter the room and take something away. 2. 在使役动
8、词宾补结构中的使用使役动词接现在分词作宾语补足语, 表示“让一直做某事”Its cold. We should have the fire burning all the time. I wont have you running about in the room. 注意：1). have/get+sb/sth+done包括两层意思: 让别人去做某事。 (主语)遭受到(意外的损失或不幸)。 have +宾语+do sth. 意思是“让某人去干某事”。翻译：1.Mother has me go to the shop to buy some fruit. _2.He had/got his c
9、omputer stolen the other day. _3.He will have/get the computer repaired tomorrow. _2). leave/keep +sb/sth done sth(使处于/保持某种状态)Many teachers keep parents _(inform) of childrens performance in the kindergarten by sharing videos on WeChat. 3. 现在分词在with复合结构中的使用在with复合结构中, 现在分词充当宾语补足语, 表动作的“正在进行”. Does K
10、ilimanjaro deserve its reputation as a crowded mountain with lines of tourists ruining the atmosphere of peace? 注意：在with的复合结构中, 也可以使用不定式和过去分词作宾语补足语。All the afternoon he worked with the door locked(表_）. I cant go out with all these clothes to wash（表_）. Step 4 Practice1. Chinas image is improving stea
11、dily, with more countries _(recognize) its role in international affairs. 2. Dont leave the water _(run) while you brush your teeth. 3. Mr Smith suggested a good way to have her written English _(improve) in a short period. 4. Mother has the little girl _(play) the piano this afternoon. 5. I noticed
12、 a thief_(steal) money from the old womans pocket yesterday6. Can you hear her _(sing) the song in the next room? Step 5 More about v-ing as the adverbial -ing形式作时间、原因、条件、让步状语时多位于句首; 作结果、伴随情况状语时常位于句末。 1. 表示时间。Hearing these stories, Im skeptical about the place. = When _. . . 2. 表示原因。Not knowing his
13、address, I cant send this book to him. = _. . . 3. 表示结果。His father died, leaving him a lot of money. =. . . _ left him a lot of money4. 表示条件。Going straight down the road, you will find the department store. = _. . . 5. 表示让步。Being tired, they went on working. = _.6. 表示行为方式、伴随情况或补充说明。He lay on the gra
14、ss, staring at the sky for a long time. =. . . and _ 注意：非谓语动词作状语时, 如所提供的动词不能和句子中的主语保持一致, 动词-ing形式必须有自己的逻辑主语, 通常由名词或代词来担任, 这就是独立主格结构。The last bus having gone, we had to walk home. (having gone的逻辑主语是the last bus, 而不是we)Weather permitting, the football match will be played on Friday. (permitting的逻辑主语是time, 而不是the football match)Step 7 Practice 1. _(study) hard, you are sure to get first prize. 2. People use plasti
