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I.The Passive Voice 被动语态 1.主动语态的构成:主语+谓语动词+宾语(sb+do+sth) 在被动语态的句子中,主动语态句子中的宾语变为被动语态的主语:sth+be+done(过去分词)+(by sb) 2.被动语态的构成:主语+be+过去分词+(by sb) 被动语态在各种时态中的形式:(以build为例)
English is spoken by people all over the world. 世界各地的人们都说英语。(一般现在时) The hospital was built last year. 这所医院是去年建造的。(一般过去时) Who will be invited to the party? 谁会被邀请去参加晚会呢?(一般将来时) A new children’s hospital is being built over there. 那边正在建一所新的儿童医院。(现在进行时) The house was being painted when I got there. 当我到达那里时,房子正在粉刷。(过去进行时) The article has been sent to a newspaper. 文章已送往一家报社。(现在完成时) The work had been finished when I got there. 当我到达那里时,工作已经做完了。(过去完成时) The teacher said an exhibition would be held in our school the next week. 老师说我们学校下周将要举办一次展览。(过去将来时) 3.带被动语态的否定句和疑问句: 否定句在be动词,助动词shall/will/should/would has/have/had后加not: Coffee is not widely drunk in China. (喝)咖啡在中国不太普遍。 He will not be invited to the party. 他不会被邀请去参加那个晚会的。 疑问句要把be动词,助动词shall/will/should/would has/have/had提前: Is French only used in France? No,it isn’t. 只有法国说法语吗? 不,不是的。 Has the suitcase been packed yet? 行李箱打好了吗? 4.被动语态主要在以下几种情况下使用: 1)我们不知道动作的执行者或没有必要说明动作的执行者是谁时。(这时都不带by引导的短语) We plant trees every year.(主动)= Trees are planted every year.(被动) 每年都种树。 When will they finish the cinema? = When will the cinema be finished? 电影院何时建成? 2)动作的承受者是谈话的中心(此时可以带by引导的短语): The book was written by Shakespeare. The store is run by Martin. 3)出于礼貌不愿说出动作的执行者是谁: You are supposed to be here before 7:20. 要求你在7:2 0之前到这里。 Teenagers are not allowed to drive a car. 不允许青少年驾车。 5.规则动词的过去分词构成与动词的过去式相同。 Ⅱ.由when和how long引导的疑问句的特点: when引导的问句中动词为终止性动词;而how long引导的问句中动词为延续性动词。例如: When did you begin to learn to ride a bike? 你是什么时候学骑自行车的?(“开始学”为终止性动词) When will he get home? 他什么时候到家? (“到家”为终止性动词) How long do you live here? 你在这里住了多久了? (“居住”为延续性动词) How long may I keep the book? 这本书我可以借多长时间?(“borrow”为终止性动词,所以表示借一段时间要用“keep”) |
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