Unit 1 Science Fiction 单元复习课件-2021-2022学年高中英语人教版（2019）选择性必修第四册

选择性必修第四册 Unit 1 Science Fiction 01/单词 02/语法 03/语言点 04/课文短语 目录/contents 单词 1．appointment n．预约；约会；委任→appoint vt.任命；委派；指定；约定2．guilty adj.内疚的；有罪的；有过失的→guilt n．内疚；罪行；罪过3．declare vt.表明；宣称；公布→declaration n．宣称；声明4．calculate vt.计算；核算；预测→calculator n．计算器→calculation n．计算 5．blurred adj.模糊不清的；难以区分的→blur v．(使)变得模糊不清；(使)视线模糊 6．division n．分开；分隔；差异；除(法)→divide vt.分开；分散；分配；分享 7．urge n．强烈的欲望；冲动 vt.催促；力劝；大力推荐→urgent adj.紧急的；急迫的 8．explode vi.& vt.爆炸；爆破→explosion n．爆炸；(感情)爆发；激增 9．mud n．泥；泥浆→muddy adj.泥泞的 语法 一、语态 语态用来表示主语与谓语之间的关系。 主动语态表示主语是动作的执行者 被动语态表示主语是动作的承受者 什么时候常用被动语态? 不知道动作的执行者 没有必要指出动作的执行者 强调动作的承受者 一般来讲，只有及物动词才有被动语态 二、被动语态的一般结构： 即：be+ done (+ by) “be+及物动词的过去分词” Hamlet was written by Shakespeare. 《哈姆雷特》是莎士比亚写的。 The task has been finished. 任务已经完成了。 不知道动作的执行者 强调动作承受者 We speak English. 主语 谓语 宾语 English is spoken by us. 主语 谓语 宾语 主动语态 被动语态 The basic composition of the passive voice 一般时 进行时 完成时 现在时 过去时 将来时 am / is / are done am / is / are being done was / were done shall / will be done was / were being done had been done shall / will have been done has / have been done 三、各种时态的被动语态构成 1.They make shoes in that factory. 四、主动语态变被动语态 Shoes are made (by them) in that factory. 一般现在时的被动语态构成 ： S(主语）+am/is /are +过去分词 2. They bought ten computers last term． Ten computers were bought (by them) last term. 一般过去时：S+was/were +过去分词 3．Ling Feng can take good care of Polly ． Polly can be taken good care of by Ling Feng . 情态动词： S+ can/may/must/should + be+过去分词 4.They will finish the work in ten days. The work will be finished (by them) in ten days. 一般将来时： S+ will+be+过去分词 5. Some workers are painting the rooms now． The rooms are being painted by some workers now. 现在进行时： S+ am/is/are + being +过去分词 6．We have made twenty more keys． Twenty more keys have been made by us. 现在完成时： S+ have/has + been+过去分词 7．I was doing my homework at 8:00 last night． My homework was being done (by me) at 8:00 last night. 过去进行时： S+ was/were+being+过去分词