动词语态课件.ppt

?什么时候用主动语态或被动语态? 主语是动作的执行者就用主动语态主语是动作的承受者就用被动语态 We study English at school. English is studied by us at school. 我们用木头做家具。那只老鼠被猫抓住了相机是用来照相的。 Discusion : the active voice 主动语态 the passive voice 被动语态主动语态被动语态被动语态一、被动语态汇总常用被动语态构成常用被动语态构成 1一般现在时 6过去进行时 2一般过去时 7现在完成时 3一般将来时 8过去完成时 4过去将来时 9将来完成时 5现在进行时 10 含有情态动词的 am/is/are asked was/were asked shall/will be asked should/would be asked am/is/are being asked was/were being asked have/has been asked had been asked will/would have been asked should/can/must/ may be asked 1. After the class, the students went out of the classroom one by one, but only Mary________. A. left B. had left C. was leaving D. was left D A 【强化练习】 2. The teacher told his students that they ________ to be useful men to the country. A. were all expected B. were all expecting C. all were expecting D. all expected 此句中 Mary 是被留下来,而不是主动离开。从本句意思来看, they 应指学生,与 expect 之间应是被动关系。 be expected to do 意思是:被期望做……。 3. ---________ you _______ the editor at the airport? --- No, he ________ away before my arrival. A. Did, see; was leaving B. Have, seen; was leaving C. Did, see; had left D. Do, see; left C 4. Hundreds of jobs _______ if the factory closes. A. lose B. will be lost C. are lost D. will lose B 5. Rainforests _______ and burned at such a great speed that they will disappear from the earth in the near future. A. cut B. are cut C. are being cut D. had been cut 6. We can not use the bridge now, because it ________. A. has been repaired B. is repairing C. is repaired D. is being repaired C D D项表示“正在被修复”。 7. The car ran down the hill, and the driver ________, according to the newspaper, to have been killed. A. said B. was saying C. was said D. had been said C D “据说……”在英语中可用“ It is / was said that sb . / sth . ... ”句型来表示。该句型可变成““ sb . / sth . is (was) said to ... ”的句式。因此本句应填不定式结构, drive 与