Unit 3 The Internet Discovering Useful Structures课件 2026-2027学年高中英语人教版必修第二册

该高中英语课件核心聚焦现在完成时的被动语态，从现在完成时的用法（过去动作对现在影响、持续到现在）及被动语态概念切入，通过时间轴、主动被动对比例句（如“Jan's life has been improved”与“The Internet has improved Jan's life”）搭建学习支架，帮助学生衔接前后知识。 其亮点在于结合生活实例（如“your shoes have been cleaned”）和游戏场景（如“An enemy has been slained”）提升语言能力，通过对比辨析（如现在完成时与一般过去时被动的区别）培养思维品质，提供解题步骤（找时间状语、判断被动关系等）发展学习能力。学生能高效掌握语法，教师可提升教学针对性。

Unit 3 Discovering Useful Structure Present Perfect Passive Voice 现在完成时的被动语态 By Miss Chen 1.什么是现在完成时的被动语态？ 2 present(now) future past 过去的动作对现在产生影响 过去的动作一直持续到现在 The Present Perfect Tense 现在完成时 现在完成时 过去发生的动作，对现在产生的影响 过去 现在 ① 事情发生在过去并且已经结束，但对现在产生影响。 现在 过去 现在完成时怎么用？ ② 事情发生在过去一直持续到现在，并且有可能持续下去。 现在 过去 现在完成时怎么用？ 现在完成时的构成 have/has + done 当主语是_____________用has 当主语是_____________用have done在现在完成时中叫_________ 第三人称单数 其他人称 过去分词 Someone has broken the window. (窗户现在是坏的) I have already lost the key. (我现在没有钥匙) I haven’t read that book yet. (不了解书的内容) I have just cleaned my hands. (手是干净的) 现在完成时的用法 (1) 表示过去发生的动作, 强调结果或对现在的影响。 常与already, yet (到现在还没有), just (刚刚), ever 等词连用. already: 常用于肯定句中 yet: 常用于否定句,疑问句尾 She has learned English for 5 years. 她学英语有五年了。 He has lived in Beijing since （自从） 5 years ago. 他五年前就住在北京了。 二、现在完成时的用法 (2) 表示从过去开始并持续到现在的动作或状态，常与包括现在在内的一段时间的状语连用。 被动语态 一、什么是语态？ 语态是英语动词的一种表现形式，用来说明_______和__________之间的关系。 二、语态的种类：_______和________ 主语 谓语动词 主动 被动 挑事儿： If you think you're such a tough guy, then hit me. You hit me! Come and help me! I was hit. have/has been done 现在完成时的被动语态 be done have/has done 现在完成时 被动语态 现在完成时的被动语态 2.现在完成时的被动语态的构成 12 Lead-in 1.以上句子中所使用的时态和语态是 。 2.现在完成时的被动语态的构成为： 。 现在完成时的被动语态 have/has been＋过去分词 An enemy has been slained. 一名敌人被击杀。 An ally has been slained. 我方队友被击杀。 You have been slained. 你被击杀了。 观察例句，归纳用法 The classroom has been cleaned. You needn’t clean it now. passive 表示说话时已经完成的被动性的动作或结果，主语是动作的承受者。 active 现在完成时 The students have cleaned the classroom. 找出下面句子的谓语结构，哪些是主动？哪些是被动？ Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life. Much has been written about the wonders of the World Wide Web. 4. People have written much about the wonders of the World Wide Web. 被动 主动 主动 被动 How do we form the present perfect passive voice? Fill the blank. Let’s learn Verb form Active Passive have/has + v-ed have/has been + v-ed ____________________ Read the poem and underline the present perfect passive voice. Look at the way your face has been washed Look at the way your teeth have been brushed Look at the way your shoes have been cleaned You’d better do them again. Look at the way the flowers have been planted Look at the way the grass has been cut Look at the way the paths have been swept I hope that you’ll come here again. 现在进行时的被动语态 have/has + been + done 肯定式：主语+have/has been done... His homework has been finished. 否定式：主语+have/has not been done... His homework has not been finished. How long has his homework been finished? 一般疑问式：Have/Has+主语+been done...? Has his homework been finished yet? 特殊疑问式：疑问词+have/has+主语+been done...? 3.现在完成时的被动语态的用法 21 常与现在完成时连用的时间状语： already 已经（肯定句） yet 已经（否定句/疑问句） recently/lately 最近 since then 从那时起 ever since 自那以来 ever 曾经 so far 到目前为止 for a long time 很长一段时间 up to now/by now 到现在为止 in recent years 在最近几年里 in/during/over/for the past/last ... years/weeks/months 在过去的几年/几周/几个月里 现在完成时的提示词 1. 表示过去发生的动作对现在造成的影响与结果，主语和谓语之间为被动关系。 当动词为非延续性动词时，可与 或 连用，但不能与for或since引导的表示一段时间的状语连用。 already yet 现在完成时的时间标志 1. already 和 yet 都表示“已经”，already用于肯定句中，yet用于否定句和疑问句 I have already finished my English homework. I haven’t finished my English homework yet. Have you finished your English homework yet? The letter (post) already. Observe the following sentences and try to fill in the blanks. has been posted Many houses (build) so far. have been built The buildings (destroy) by the earthquake already. have been destroyed Seven Harry Porter books (write) by J. K. Rowling so far. have been written 用法1:表示过去发生的动作对现在造成的影响与结果。 2. 表示一个被动的动作或状态开始于过去，持续到现在，并有可能持续下去，常与for或since引导的时间状语连用，或用于“How long...?”句型中。 现在完成时的时间标志 2. for 和 since I have read the book for two months. I have read the book since 2024. for + 时间段 （表示动作持续了一段时间） since + 时间点 （表示动作开始于什么时候） Paper money (use) for 50 years. has been used 用法2:被动动作发生在过去，持续到现在，并有可能继续持 续下去。(for+一段时间; since+时间点) A new bridge (build) since two weeks ago. has been built 3. 用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。 Eg：You shouldn’t leave school before your homework has been finished. Everyone will feel extremely delighted if he________________(admit) to Sun Yat-sen University. You shouldn’t leave school before your homework_______________(finish). has been admitted has been finished 用法3:在时间/条件状语从句中表示可能还没有发生的被动动作, 用现在完成时的被动语态代替将来完成时的被动语态。 注意！！！ The machine has been repaired already. （说明动作发生在过去，对现在有影响，“现在修好了”） The machine was repaired yesterday. （只说明动作发生在过去） Tip① 现在完成时的被动语态与一般过去时的被动语态的区别： Tip② 由borrow，finish，begin，start，buy，marry，open，join, die等词构成的现在完成时的被动语态, 不能与表示一段时间的状语连用，若要表达相应的意思，则要改换动词或时态。 判断正误: * He has died for 3 years. * He died 3 years ago. √ X Tip③ 短语动词不能分割，不能省略短语动词中的介词或副词。 判断正误: *The patient has been taken care. （ ） *The patient has been taken care of. （ ） √ X Can you make more sentences, using “have/has been done” ? 现在完成时被动语态的解题步骤 1. 找出与现在完成时相对应的时间状语 2. 主语跟谓语动词构成被动关系 3. 确定形式：have/ has (not) been done Tall buildings_______________(build) everywhere. have been built A Shopping center ___ (build). has been built More dustbins ___ ( place) on the streets. have been placed More and more trees and flowers ___(plant) in the cities. have been planted 单句填空： 1.The computer_______________ (use) by us for three years. 2. ---Why does the lake smell terrible? ---Because the water __________________(pollute). 3.More than 100 famous films (show) since July. has been used has been polluted have been shown 单句填空： 4. This book (translate) into many languages so far. 5. Our classroom (clean), you needn’t to clean it now. has been translated has been cleaned 1. I have downloaded the software to help my phone battery last longer. 2. Someone has lost an identity card. The software has been downloaded to help my phone battery last longer. An identity card has been lost. 3. Have you confirmed the Wi-Fi password? 4. Have you pressed the button yet to copy the file? 5. Has anyone made a comment about the online database? Has the Wi-Fi password been confirmed? Has the button been pressed yet to copy the file? Has a comment been made about the online database? Translate them into English. 1.你以前做过风筝吗? 2.我从来没有见过这么奇怪的人． 3.到目前为止你学了多少英语单词? 4.这部电影他已经看过5遍了. 5.最近有没有读一些有趣的书? 6.自从她搬到上海以后, 我就没见过她. Have you made a kite before ? I’ve never seen such a strange man. How many English words have you learned so far? He has already seen this film 5 times. Have you read any interesting books recently ? I haven’t met her since she moved to Shanghai. “三变” 例：They have already solved the problem. 原句主语 by的宾语 宾语 主语 谓语由主动 被动 “三不变” 原句意思不变 原句时态不变 原句主谓宾以外成分不变 The problem ____________________ by them. has already been solved 被动语态 一般现在时 am/is/are+done 现在进行时 am/is/are+being+done 被动语态 现在完成时 have/has+been+done 肯定式： S+have/has been done... 否定式： S+have/has not been done... 一般问句： Have/Has+S+been done 特殊疑问句： 疑问词+have/has+S+been done 现在完成被动语态的基本结构 Lavf59.14.100 $