高二英语Theampnbspenvironment教案

　　teaching plan for grammar and usage
　　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等动词后，用现在分词构成的复合宾语，表示动作正在进行。而动词原形则表示动作的全过程，即动作已结束。
　　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