时间:2024-06-21 点击: 次 来源:网络 作者:佚名 - 小 + 大
被动语态是英语中一种重要的语法结构,用于描述主语是动作承受者的句子。它通常用于突出或强调动作的承受者,或者当不知道或没有必要指出动作的执行者时。被动语态的基本结构是“助动词be+及物动词的过去分词”,其中“be”动词的形式要根据句子的时态来确定。 1. 肯定句:主语+be+及物动词的过去分词+(by+执行者)。例如:The book was written by him.(这本书是他写的。) 2. 否定句:主语+be not+过去分词+(by+执行者)。例如:The book wasn't written by him.(这本书不是他写的。) 3. 一般疑问句:Be+主语+过去分词+(by+执行者)?例如:Was the book written by him?(这本书是他写的吗?) 4. 特殊疑问句:特殊疑问词+be+主语+过去分词+(by+执行者)?例如:Who was the book written by?(这本书是谁写的?) 此外,被动语态还常用于不同时态中,包括现在时、过去时、将来时等,以适应不同时间点的描述。 1. 填空练习 选择适当的被动语态形式填空。 * The room _______ (clean) every day. * The project _______ (finish) by the end of the year. * The letter _______ (send) to me by my friend. 2. 改写句子练习 将下列主动语态的句子改写为被动语态。 * They built the new school last year. (改写为被动语态) * He broke the window accidentally. (改写为被动语态) 3. 选择练习 从给出的选项中选出最合适的被动语态形式。 * The painting _______ by a famous artist. a) was painted b) painted c) is painting d) paint 答案: 1. is cleaned, will be finished, was sent; 2. The new school was built last year. The window was broken accidentally by him.; 3. a) was painted |
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