Unit 2 Section Ⅲ Using language-Grammar(课件PPT)-【优化指导】2022-2023学年新教材高中英语选择性必修第四册（外研版2019）

英语选择性必修4 Unit 2 Lessons in life Section ll Using language-Grammar >>Section Ill Using language-Grammar Section Ill Using language-一Grammar复习被动语态 分析/句子结构 [对应学生用书P] 观察] 1.This all changes when he is reunited with his favourite college professor,Morrie Schwartz. 2.On discovering that Morrie is being weakened by a severe illness... 3.After finishing it,I feel I have been given a deeper insight into the world and can see things from a different point of view. 4.While we are living,we tend to get distracted by unimportant things,such as gathering material possessions. 5.Reading this book made me feel as if I'd been woken up from a long sleep... 6.A box of tissues will be needed to get through this book! )返回导航○ >>Section Ill Using language-Grammar 归纳例 1.一般现在时的被动语态由amis/ae十动词的过去分词”构成，如句1。 2.现在进行时的被动语态由“am/is/are十being-十动词的过去分词构成，如句2。 3.现在完成时的被动语态由have/has十been十动词的过去分词"构成，如句3。 4.“gt十动词的过去分词”也可表示被动，如句4。 5.过去完成时的被动语态由had+been十动词的过去分词构成，如句5。 6.一般将来时的被动语态由“wil+be十动词的过去分词构成，如句6。 知识/要点精析 [对应学生用书P 被动语态的概述 英语的语态有主动语态和被动语态两种。决定动词用主动语态还是被动语态主要看动词和主语的关系。 如果主语是动作的执行者，即它们是主动关系，此时动词用主动语态；如果主语是动作的承受者，即它们 是被动关系，此时动词用被动语态。 e 返回号航◇ >>Section Ill Using language-Grammar 英语的被动语态由be十过去分词构成， 各种时态的被动语态 被动语态的构成 其中be有时态、人称和数的变化。 一般现在时的被动语态 am/is/are done The children are not allowed to play on the 一般过去时的被动语态 was/were done steps. 孩子们不被允许在台阶上玩耍。 现在进行时的被动语态 am/is/are+being done Artificial Intelligence is more and more widely 过去进行时的被动语态 was/were++being done used now. 现在完成时的被动语态 have/has been done 现在人工智能被越来越广泛地使用。 二、被动语态的构成 过去完成时的被动语态 had been done will/shall have been 将来完成时的被动语态 被动语态由be done'"形式构成。这里要强 done 调一定是及物动词的过去分词，因为不及物动 一般将来时的被动语态 will/shall be done 词不能带宾语，也就不可能有被动语态。 过去将来时的被动语态 would/should be done 子返回导航◇ >>>SectionⅢUsing language-Gramma知 They are given a tough task to finish. The phone which he lost has been recovered. 他们有一个很棘手的任务要完成。 他丢的那部手机已经被找到了。 We were given a warm welcome. As long as you check carefully,any mistakes will 我们受到了热烈的欢迎。 be caught I think we are being cheated by the man. 只