山东省新泰市第二中学高中英语 模块七 unit2语法 语法预习案 新人教版选修7

山东省新泰市第二中学高中英语模块七 unit2 语法 语法预习案英语语态指的是主语与谓语动词之间的关系，如果是主动关系（主语是动作的执行者），句子就是主动语态；如果是被动关系（主语是动作的承受者），句子就是被动语态。使用被动语态的情况1. 我们不知道或没有必要说明动作的执行者是谁的时候(这时不带 by引起的短语)。Printing was introduced to Europe from China. (省略了 by 短语。)Look! There is nothing here. Everything has been taken away. (省略了 by 短语。)2. 当我们出于礼貌、措辞委婉等方面的考虑不愿说出动作的执行 者是谁时。You are requested to give a performance.You are cordially (诚挚地) invited to a party to be given at the Teachers' Club at 3 p.m. Nov. 23.3. 当我们强调或兴趣在动作的承受者时(这时可带 by 引起的短语)。The song was composed（组成; 写作）by a student. A good time was had by all.被动语态的构成被动语态由 be＋过去分词构成，be 随时态的变化而变化。以 give 为例，各种时态的被动语态形式为：一般现在时：am/is/are＋given 【例句】The first section of New College English is designed for speaking practice and is based on pictures and topics.一般过去时：was/were＋given【例句】These computers were made in our own country. 一般将来时：will/shall be＋given【例句】Shall we be asked to attend the opening ceremony? 过去将来时：would be＋given【例句】The news would be sent to the soldier's mother as soon as it arrived.现在进行时：am/is/are being＋given 【例句】The machine is being repaired in the workshop.过去进行时：was/were being＋given【例句】The feast was being prepared when the birds arrived in 1the sky.现在完成时：have/has been＋given【 例 句 】 Swift progress has also been made in culture and education. 过去完成时：had been＋given【 例 句 】 The huge bridge had been damaged before the World WarⅡ.将来完成时：will/shall have been＋given【例句】The book will have been publi shed by the end of next ...