译林牛津版英语八年级下册-Unit-7-教学ppt课件-Grammar.pptxVIP

Grammar We use it to type. It is used to type. What do we use it to do? We use a printer to put the words and pictures onto paper. A printer is used to put the words and pictures onto paper. What do we use a printer to do? Read the sentences below. More money is needed for charity. The plane is also used as a training centre. Local doctors and nurses are invited on board to learn about eye operations. 150 patients were operated on. More money is needed to carry on with our work. 被动语态 被动语态的谓语部分由“be + 动词过 去分词”构成，其中，句子的时态由be 的时态体现。在含被动语态的句子中， 主语是动作的承受者，如果要说明动作 的执行者，用介词by引出， by短语通常 省略。 被动语态的用法： (1)要表达“被…… 、受 …… 、遭 …… 、让……” 之类的语义。 如: 教师很受尊敬。 Teachers are well respected. (2)强调动作承受者。 如： 他远近闻名。 He is known far and wide. (3)不知道或没有必要指出动作的执行者。如： 房子每天都有人打扫。 The room is cleaned every day. •被动语态可用于多种时态中，以表示动作 发生的时间不同。让我们看看被动语态的 一般现在时和一般过去时的结构形式： am / is / are+动词的过 去分词 was / were+动词的过去 分词 一般现在时 一般过去时 结构 English is used everywhere. 到处都在说英语。 The small girl was taken to the hospital by her parents. 这个小女孩由她的父母带到医院。 Underline the passive voice in the following sentences. 1. The cake was eaten by Daniel. 2. The book was taken by Nancy. 3. The little dog is looked after very well by Simon. 4. His house was sold by his son. 5. The computer is bought by my uncle . 6. I am woken up by my father every morning. I me English 主动语态和被动语态的转换 被: + + + is learned English learn + by : 主 All the people laughed at him. →He was laughed at by all people. They make the bikes in the factory. →The bikes are made by them in the factory. 含有双宾语的主动句改为被动句时，应将其 中一个宾语改为被动结构的主语，另一个宾 语仍保留在原处。一种情况是把间接宾语(指 人)变为主语，直接宾语(指物)不变；另一种 情况是把直接宾语(指物)变为主语，间接宾 语(指人)不变，这时, 间接宾语前通常加介词 to，有时加for。例如： My father gave me a new book on my birthday. →I was given a new book (by my father) on my birthday. (间接宾语作了主语) →A new book was given to me (by my father) on my birthday. (直接宾语作了主语) Change the active voice into the passive voic