Unit 3 Tomorrows world,Grammar and usage,江苏睢宁高级中学 高一备课组,The man _ (call) “Good husband”.,is called,The pet dog _ (treat) by veterinary.,is being treated,A frog _ (catch) by a big bird just now.,was caught,An argument _ already _ _ (put forward).,has been put forward,be + done,The passive voice,Point out the verb, the subject and the object in the following sentences:,We kept food in the fridge.,We must close the windows and the door.,S,V.,O.,S,V.,O,Food was kept (by us) in the fridge.,The windows and the door must be closed.,How can we change a sentence into passive voice ?,1. Find out the object of the sentence and use it as the subject of the sentence with the passive voice.,2. Decide the tense of the sentence and use the related form of its passive.,3. If necessary, use “by” to join the former subject, which should be put into its object form.,When do we use the passive voice?,Many houses will be built here.,不知道或没必要指出动作的执行者。,The song “The East is Red” was written by a poor peasant.,强调动作的承受者。,The plan was supported by those who wished to have more chances to speak English.,动作的执行者有较长的修饰语。,You are requested to attend the meeting.,出于礼貌, 不愿意说出动作的执行者。,Change the following sentences into the passive voice:,1. All of us like her.,2. We are discussing the question.,3. We have put off the meeting.,4. I will develop my picture next week.,She is liked by all of us.,The question is being discussed.,The meeting has been put off.,My picture will be developed next week.,be,+ done,am/is/are 一般现在时,am/is/are+being 现在进行时,shall/will+be 一般将来时,have/has+been 现在完成时,be,+ done,was/were 一般过去时,was/were+being 过去进行时,would+be 过去将来时,had+been 过去完成时,Please read Point 3 on Page 48.,Fill in the blanks with the right form of the words given:,I _ (give) a new book by my father on my birthday. English _ (find) very useful. 3. The work _ (finish) tomorrow. 4. The flowers _ (water) by them now.,was given,is found,will be finished,are being watered,5. The railway _ (build) this time last year. 6. The new way _ already _ (build). 7. The new railway _ (build) by the end of last year. 8. He told me the sports meeting _ (hold) the next month. 9. Rice _ (grow) in the south of the States.,was being built,has,been built,had been built,would be held,is grown,Change the following sentences into passive voice and ask questions about the underlined parts:,1. We will build many new sports venues for the Beijing Olympics.,Many new sports venues will be built for the Beijing Olympics.,What will be built for the Beijing Olympics?,2. I was watching the final match on TV yesterday evening.,3. John carried the Canadian flag at the opening of the Olympics.,The final match was being watched yesterday evening.,Where was the final match being watched yesterday?,The Canadian flag was carried by John at the opening of the Olympics.,Who (Whom) was the Canadian flag carried by at the Olympics?,4. We have made the flags by hand.,5. I will take care of your dog while you are away.,The flags have been made by hand.,How have the flags been made?,Your dog will be taken care of while you are away.,What will be taken care of while you are away?,Modal verb + be + done,We can use modal verbs in the passive voice to talk about ability, possibility, duty, permission, etc.,Firefighters could be trained using RealCine.,Computers can calculate the position of the viewer at any time.,The position of the viewer can be calculated at any time.,Practice,1. The viewer can touch the objects in the film.,2. The viewer may feel a real sense of achievement and happiness.,3. RealCine might not impress some viewers.,The objects in the film can be touched.,A real sense of achievement and happiness may be felt.,Some viewers might not be impressed by RealCine.,4. Teachers could use RealCine in the classroom too.,5. Film-makers should use RealCine for all films.,6. Scientists ought to develop RealCine further.,7. The viewer must wear special gloves.,RealCine could be used in the classroom too.,RealCine should be used for all films.,RealCine ought to be developed further.,Special gloves must be worn.,被动语态的各种句型,1. 单宾语结构。,Our English teacher often uses a tape-recorder in teaching English.,A tape-recorder is often used (by our English teacher) in teaching English.,The villagers gave the foreign guests a warm welcome.,The foreign guests were given a warm welcome by the villagers.,A warm welcome was given to the foreign guests by the villagers.,We offered people in the flooded areas some food and clothes.,2. 双宾语结构。,People in the flooded areas were offered some food and clothes.,Some food and clothes were offered to the people in the flooded areas.,3. 复合宾语结构。,They heard someone singing in the next room.,object,Object complement,Someone was heard singing in the next room.,在主动语态中，有些使役动词和感官动词后接不带to的不定式作宾语补足语。 但在被动语态中，要改为带to的不定式作主语补足