Unit 2《The Environment》Grammar and usage教案3（牛津譯林版必修5）

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111 Unit 2 The environment Grammar Teaching Aims 1. Help Ss understand verbing form as an adjective or adverb 2. Master a verb-ing as attributive, predicative, object complement ect. Teaching difficult points 1. How to use verb-ing form as an adjective or adverb 2. How to use verb-ing phrases Teaching steps; Step1 Lead-in 1. The children stopped____as the teacher came in A.talk B.to talk C.talking D.talked 2. If he can stop them ____there ,I will do it A.go B.to go C.gone D.going 3. He is quite used _____in all sorts of weather A.fly B.to fly C.to flying D.to flied 4. Doctor Bethune went on_____throughtout the night A.work B.worked C.to work D.working 5. Your shoes are dirty .They need____badly A.wash B.washed C.to wash D.Washing Step2 1.Verb-ing form as an adjective or adverb *Attribute It is a very moving film and it is well worth seeing Canada is an English-speaking country The girl sitting in the corner is my best friend. *Predicative Your journey in Kerya is really exciting What you did was disappointing. *Object complement We find the journey to America exciting. I heard someone playing the violin in the next room. 注:在see hear watch feel notice等動詞后，用現(xiàn)在分詞構(gòu)成的復(fù)合賓語，表示動作正在進行。而動詞原形則表示動作的全過程，即動作已結(jié)束。 We saw the teacher making the experiment. Isaw the girl get into the car and drive off. 2.A verb-ing can be used after verbs like stand,sit,lie .These two action are happening at the same time. They stood talking to each other . They stood when they were talking to each other. 3.A verb-ing has a perfect form , eg having worked, Having worked side by side with many environmentalists,I know that a healthy environment and stable economy should be possible at the same time. Step 3. Practise. P29 A and B Homework: 1. Review Verb-ing form as an adjective 2. Finish the exercise Verb-ing phrases Teaching steps; Step 1: Lead-in 1.-------full preparations, we decided to put off the meeting till next week. A.We did not make B.Having not make C We had not made D.Not having made 2.European football is played in 80 countries,-------it the most popular sport in the world. A.making B makes C made Dto made 3.-------what the situation would be like ,they decided to keep silent. A. Having not know B Knowing not C.Not know D.Not knowing Step 2 Verb-ing phrases 1. Verb-ing phrases can express *time Seeing the big snake ,the girl was almost frightended to death. =When she saw the big snake,……… *reason Being a student,I must work hard. =Because I am a student, I must work hard. *result The factory keeps releasing smoke,making the air dirty. =The factory keeps releasing smoke.As a result ,the air is made dirty. *condition Preparing fully, we can achieve great things =If we prepare fully, we can …. 2. We can also use the pattern conjunction+verb-ing to express time.The common conjunctions are when,whenever,while,once,and until. We have to take environmental protection into consideration when developing the economy. 3. The understood subject of a verb-ing clause is usually the same as the subject of the main clause He travelled on the plane like this, keeping the tortoise hidden in a blanket. =When he travelled on the plane like this , he kept the tortoise hidden in a blanket. 4. We put NOT before the verb-ing to create its negative form He sat there, not knowing what to say. Step 3. Practise P31 Step 4 Exercise: Homework: 1.Review Verb-ing phrases 2. Finish the exercise 111