学人教版选修七Unit Three Under The Sea Period4 Grammar教案（4页word版）.docx

2019学年度选修七unit three under the sea period4 grammar教案teaching aims:1. students will be able to recognize the ing / being done forms and know the exact meanings of them.2. students will be able to use these two forms correctly.step 1 revisionask students to revise the text by answering some questions:1) what did clancy witness when he ran down to the shore?2) why did clancy run in a hurry?3) what did old tom do when they headed into the bay?4) what did old tom do after george beat the water?5) what did clancy witness when they drew near?step 2 grammar learning1. 现在分词(-ing形式)的构成v-ing形式由“do + ing”构成, 否定形式是“not doing”, v-ing可以带宾语或状语构成v-ing短语, 没有人称和数的变化, 但有时态和语态的变化.2. 动词ing形式的被动式分为一般式和完成式:1) 一般式：表示这个被动的动作正在进行或与谓语表示的动作同时发生.2) 完成式：强调这个被动的动作在谓语动词所标示的动作之前完成. 语态时态主动语态被动语态一般式(not) doing(not) being done完成式(not) having done(not) having been done3. 动词-ing的被动式的句法功能.1) 作主语：so being killed by sharks was a common thing.2) 作宾语, 用在介词后或需要带ing形式作宾语的动词后.george didnt like being kept waiting.he was terrified of being abandoned by us.do you remember having been taken to beijing at the age of ten?3) 作表语. what worried the child most was his not being allowed to visit his mother in the hospital.4) 作定语.the problem being discussed is of great importance.5) 作状语.having been shown around the library, we were taken to see the lab.6) 作补足语.as we drew closer, i could see a whale being attacked by a pack of about six other killers.when we approached him, i saw james being held up in the water by old tom注意事项:1) v-ing形式的被动式主要在句子中作状语, 宾语补足语和定语. 但v-ing形式的被动式的完成式, 一般在句子中作状语, 不作其他成分.they dont like the design of the new bridge being built.not having been completed, the museum cant be visited yet.2) v-ing形式的被动式逻辑主语, 如果也是主句的主语, 就不需要表示出来. 但如果逻辑主语不是主句的主语, 就得把v-ing行使自己的主语表示出来.the whole classroom having been cleaned, the students went home happily.3) 在want, need, deserve, require, repay, bear, take等动词及形容词worth后, 习惯用动词-ing的主动形式表示被动意义, 相当于to be done.the house wants cleaning.my watch needs repairing.the way deserves mentioning. 这个办法值得一提.these young trees will require looking after carefully.the film is worth seeing. step 3 exercises1. 句型转换练习(改成ing形式被动结构的简单句)1) the hotel which is being built now beside the park was designed by a group of young men._.2) the little girl was eventually aware that her parents abandoned her in the mountain village._.3) he would come even if we dont invite him. (without)_.4) after he had been examined several times, he was told to be healthy._.5) i noticed that some people were taken to the police station._.2. 补充练习:1) after the earthquake, the first thing the local government did was to provide _ for the homeless families. a. accommodation b. occupation c. equipment d. furniture2) the school advisers help you talk through your problems but they dont give you any direct _.a. solution b. target c. measure d. function3) -sorry, i have to _ now. its time for class. -ok, ill call back later.a. hang up b. break up c. give up d. hold up4) michaels new house is like a huge palace, _ with his old one.a. comparing b. compares c. to compare d. compared5) encourage your children to try new things, but try not to _ them too hard. a. draw b. strike c. rush d. push6) im not surprised that he became a writer. even as a child he had a _ imagination.a. clear b. cautious c. funny d. vivid7) last night mr crook didnt come back at the usual time. _, he met some friends and stayed out until midnight. a. meanwhile b. however c. instead d. yet8) -is peter there? - _, please. ill see if i can find him for you.a. hold up b. hold on c. hold out d. hold off9) little johnny felt the bag, curious to know what it _.a. collected b. contained c. loaded d. saved10) the final score of the basketball match was 93-94. we were only _ beaten.a. nearly b. slightly c. narrowly d. lightly11) i had not driven many miles when i was _ by a policeman. he asked to see my license.a. pulled up b. picked up c. brought up d. taken up12) after the meeting, the leaders had a _ discussion about how to promote their new product effectively. a. far b. farther c. further d. farthest13) i love music, especially old music, which often _ me of events in the past.a. remembers b. reminds c. reflects d. impresses14) the old family _ in china has undergone some changes since liberation.a. pattern b. shape c. form d. model15) quite _ of the risk, he chose to go ahead, because he knew that if he didnt have a try, there would be no possibility of success.a. eager b. aware c. sensitive d. serious16) frequent sandstorms lead to the desertification of land, so we are in urgent need of an effective measure of nutrient _ in soil and vegetation system.a. conservation b. protection c. conversation d. prevention17) patience adds a(n) _ of ease and acceptance to your life. its essential for inner peace.a. admission b. dimension (维度, 范围) c. determination d. persuasion18) he was late for three hours, and its ridiculous for him to give such a _ excuse that there had been a traffic jam. a. false b. shallow c. narrow d. funny19) he jumped on to an empty truck and drove down a _ railway track to the bottom of the mine. a. steep b. heavy c. rough d. deep20) deep in southern africa, on the mighty (汹涌的) zambezi river, theres a falling wall of water so _ and powerful that you can see its mist (水雾) from 20 miles away.a. great b. handsome c. awesome (令人敬畏的) d. amazing21) _ to see her grandfather in hospital made susan feel worried.a. not her being allowed b. her not to be allowedc. her not being allowed d. not her having been allowed22) after breaking the traffic rules, dick tried to escape _ by the police, but failed.a. to be fined b. to have been fined c. being fined d. having been fined23) _ so many times, the young girl still didnt know how to make the paper clear and readable.a. having taught b. having been taught c. taught d. teaching24) mrs black was very satisfied to see the old lady _.a. being taken good care of b. to be taken good carec. taking good care of d. being taken good care25) dont take it too seriously. you should criticize him with much good humor as if you were the one _. a. to criticize b. criticizing c. having criticized d. being criticized 26) -what do you think of the film _ in the poster just now? -good. it is worth _.a. mentioned; watching b. mentioned; to watchc. mentioning; watching d. to be mentioned; to be watched27) three guards stand outside the door to prevent the jewelry from _.a. to be robbed b. being robbed c. having been robbed d. to have been robbed28) _ in the cats mouth, the poor mouse couldnt struggle for its life.a. holding b.