必修二unit3语法 被动语态公开课
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高中英语必修二：unit3 被动语态全课件
一般现在时： am / is / are done 一般过去时： was / were done 现在进行时： am / is / are being done 过去进行时： was / were being done 现在完成时： have / has been done 过去完成时： had been done 一般将来时：shall / will be done
3. Some workers are painting the rooms now．
The rooms are being painted by some workers now. 现在进行时被动结构：
am/is/are + being +PP
Exercise:
They are holding a sports meeting now.
They make shoes in that factory.
are
Shoes
made by them in that factory.
were
1. Tom broke the window. The window was brokenby Tom. 2.He broke the windows. The windows were broken by him.
8.We have made twenty keys．
Twenty keys have been made by us. 现在完成时被动结构： have/has + been+过去分词
Exercise:
Workers have built the house since two years ago.
will/shall+ be +过去分词
3. Some workers are painting the rooms now．
The rooms are being painted by some workers now. 现在进行时被动结构：
am/is/are + being +PP
Exercise:
They are holding a sports meeting now.
They make shoes in that factory.
are
Shoes
made by them in that factory.
were
1. Tom broke the window. The window was brokenby Tom. 2.He broke the windows. The windows were broken by him.
8.We have made twenty keys．
Twenty keys have been made by us. 现在完成时被动结构： have/has + been+过去分词
Exercise:
Workers have built the house since two years ago.
will/shall+ be +过去分词
人教版必修二 book2unit3 grammar 语法课课件 36张
如： The plan has been discussed for nearly 2 hours. 这项计划已被讨论了近两个小时了。
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。
You can go home as soon as your task has been
-5-
The houses have been destroyed by
the storm.
-6-
Task1. Presentation
I. Read the sentences from the text, paying attention to the underlined parts. 1.Over time I have been changed quite a lot. 2. …, I have been used in offices and homes
3) 副词的位置
often, usually, always, never, hardly,
seldom等副词置于 have/has 和been 中间。如 : [误] Such a man has been hardly
believed.
[正] Such a man has hardly been believed.
-19-
3．—Can we sit at the table near the window?
—I'm sorry ，but it________already.
A．was taken
B ． took
C．has taken
D．has been taken
解析： 选D。it 代指the table ，和 take 之间是被动
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。
You can go home as soon as your task has been
-5-
The houses have been destroyed by
the storm.
-6-
Task1. Presentation
I. Read the sentences from the text, paying attention to the underlined parts. 1.Over time I have been changed quite a lot. 2. …, I have been used in offices and homes
3) 副词的位置
often, usually, always, never, hardly,
seldom等副词置于 have/has 和been 中间。如 : [误] Such a man has been hardly
believed.
[正] Such a man has hardly been believed.
-19-
3．—Can we sit at the table near the window?
—I'm sorry ，but it________already.
A．was taken
B ． took
C．has taken
D．has been taken
解析： 选D。it 代指the table ，和 take 之间是被动
高中英语必修二：unit3 grammar 课件
I have given him the book.
= He has been given the book.
= The book has been given to him.
He has offered us the most comfortable service.
= The most comfortable service has been offered to us by him.
I have a letter to post. (自己寄) I have a letter to be posted. (请别人寄)
（4）be worth doing; need / want / require doing (to be done)结构中
In all, the book is worth reading. This might be worth thinking about. The plants want watering / to be watered every day. The wall wants repairing / to be repaired.
但是：be worthy to be done / of being done This book is worthy to be read / of being read.
一、将空白处补充完整,完成下列含有被动 语态的句子(每空一词)。
1. They have built many houses in the village in the past few years.
= We have been offered the most comfortable service by him.
= He has been given the book.
= The book has been given to him.
He has offered us the most comfortable service.
= The most comfortable service has been offered to us by him.
I have a letter to post. (自己寄) I have a letter to be posted. (请别人寄)
（4）be worth doing; need / want / require doing (to be done)结构中
In all, the book is worth reading. This might be worth thinking about. The plants want watering / to be watered every day. The wall wants repairing / to be repaired.
但是：be worthy to be done / of being done This book is worthy to be read / of being read.
一、将空白处补充完整,完成下列含有被动 语态的句子(每空一词)。
1. They have built many houses in the village in the past few years.
= We have been offered the most comfortable service by him.
高中英语 新人教必修二 Unit 3现在完成时被动语态课件
A. are hunting
B.are being hunted
C. have been hunted
D. have hunted
ห้องสมุดไป่ตู้
• 3．Nowadays，fish and snakes ___D_____ for food in restaurants.
A. have been killed
B. have killed
2
练习检测
• 1．The alarming report ____C____now. It will be finished this afternoon.
A. is writing
B. being written
C. is being written
D. has been written
• 2．Still，in the wild forests，animals _____B___ for profit.
Unit 3 现在完成时被动语态
1
一、现在进行时被动语态 （一）构成
1. 肯定形式 is/am/are being done 2. 否定形式 is/am/are not being done （二）用法 1. 表示说话时正在进行的被动动作； 2. 表示现阶段正在进行的被动动作； 3. 表示一种经常性的被动行为，带有感情色彩。
5
二、把下面句子改错被动语态.
They’ve built a kind of new PC with more functions. A kind of new PC has been built with more functions. 1．They have just connected the printer to the computer.
人教版必修二Unit3Grammar现在完成时的被动语态(共24张PPT)
A. has set up
B. has been set up
C. was set up
D. is set up
2. ---___A__ the sports meet will be put off. A. I’ve been told B. I’ve told
C. I’m told
D. I told
by the students this month? 特殊疑问句形式： 疑问词 + have / has + been +及物动词的 过去分词。
并不是所有动词都有被动语态
happen, take place, break out, belong to, cost, last等不及物动词或词组无被 动语态。 [误] Great changes have been taken
3、Patience is bitter, but its fruit is sweet. (Jean Jacques Rousseau , French thinker)忍耐是痛苦的，但它的果实是甜蜜的。10:516.17.202110:516.17.202110:5110:51:196.17.202110:516.17.2021
3. All the preparation for the task __D__, and we’re ready to start.
A. completed B. complete C. had been completed D. have been done
4. ---- How long __B__ at this job? ---- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed
新人教版-必修2--unit-3M2U3-语法课件-被动语态
A.will teach
B. will be taught
C.has taught
D. can be teach
5. Must the composition __D___ in an hour?
A. will be finished
B. has been finished
C.is finished3. —Do you like the material?
—Yes, it __C____ very soft.
A. is feeling B. felt C. feels D. is felt
❖The soup tastes good. ❖This kind of car sells well. ❖The door locks easily.
Exercise
1. The computers on the table _D__ Professor Smith.
A. belongs
B. are belonged to
❖过去进行时
英译汉： Trees were being planted here at this time yesterday.
昨天这个时候这里正种着很多树。
汉译英：去年这个时候这个商店还在建造中。
The shop was being built at this time last year.
过去进行时的被动语态形式：
小树一定要受到精心的培育。
汉译英：这件事不可能是吉姆干的。
It can not be done by Jim．
情态动词的被动语态形式：
must/should/can/may + be + 动词过去分词
人教版新教材必修二unit3 The computer 语法：现在完成时的被动语态用法讲解
人教版新课标必修二Unit3 The computer语法现在完成时的被动语态用法讲解【学习目标】1．现在完成时被动语态的结构2．现在完成时被动语态的主要用法3．使用现在完成时的被动语态需要注意的问题【课前预习】1．什么是语态？语态是表示主语和动词之间的主动关系或被动关系的动词形式。
英语动词有两种语态：主动语态和被动语态。
主动语态表示主语是动作的执行者（施动者），被动语态表示主语是动作的承受者（受动者）。
2．对现在完成时被动语态的理解现在完成时被动语态的结构就是现在完成时态和被动语态结构的叠合，即“have + been + 动词过去分词”。
试比较以下几组句子的谓语结构：1）主动句：He has repaired the machine for two hours. 他修理这台机器已有两小时了。
被动句：The machine has been repaired for two hours. 这台机器已修了两小时了。
2）主动句：The teacher has borrowed the books. 老师把那些书借走了。
被动句：The books have been borrowed by the teacher. 那些书被老师借走了。
【教学过程】一、现在完成时被动语态的构成1．现在完成时被动语态的肯定式由“have ／has ＋been ＋及物动词的过去分词”构成。
例如：Two windows have been broken．两个窗子被打破了。
2．现在完成时被动语态的否定式由“have ／has ＋not＋been ＋及物动词的过去分词”构成。
例如：The car has not been repaired．这辆汽车还没有修好。
3．现在完成时被动语态的一般疑问式由“Have／Has ＋主语＋been＋及物动词的过去分词”构成。
例如：①─Has her work been finished？她的工作完成了吗？─Yes，it has．是的，完成了。
高中英语人教版必修第二册Unit3TheInternet现在完成时的被动语态精品课件
4. (2018·全国卷Ⅱ)Diets have changed in China — and so too has its top crop. Since 2011, the country _h_a_s_g_r_o_w_n__ (grow) more corn than rice.
5. (2018·浙江高考)While regularly eating out seems to h_as_b_e_co_m_e_ (become)common for many young people in recent years, it's not without a cost.
ever since 自那以来 ever 曾经
so far 迄今为止
for a long time 很长一段时间
by now 到现在为止 in recent years 在最近几年里
in/during/over the past/last years在过去的几年里
难点突破
1．与一般过去时的区别 一般过去时所表示的动作或状态与现在的情况没有 联系，而现在完成时则强调与现在的情况有联系。 The museum was opened to the public last year. 去年这家博物馆向公众开放。(说明动作发生于过去) The museum has been opened to the public. 这家博物馆已向公众开放。(说明动作发生于过去， 但对现在有影响，即现在公园已经开放了)
You can go home as soon as your work has been finished. 你的工作一完成就可以回家。
时间状语
常与现在完成时连用的时间状语
already 已经(肯定句) yet 已经（否定句或者疑问句）
5. (2018·浙江高考)While regularly eating out seems to h_as_b_e_co_m_e_ (become)common for many young people in recent years, it's not without a cost.
ever since 自那以来 ever 曾经
so far 迄今为止
for a long time 很长一段时间
by now 到现在为止 in recent years 在最近几年里
in/during/over the past/last years在过去的几年里
难点突破
1．与一般过去时的区别 一般过去时所表示的动作或状态与现在的情况没有 联系，而现在完成时则强调与现在的情况有联系。 The museum was opened to the public last year. 去年这家博物馆向公众开放。(说明动作发生于过去) The museum has been opened to the public. 这家博物馆已向公众开放。(说明动作发生于过去， 但对现在有影响，即现在公园已经开放了)
You can go home as soon as your work has been finished. 你的工作一完成就可以回家。
时间状语
常与现在完成时连用的时间状语
already 已经(肯定句) yet 已经（否定句或者疑问句）
高中英语公开课 必修2 Unit3 Grammar课件
3. The car factory has produced a great many fine cars since the technological revolution.
A great many fine cars have been produced by the car factory since the technological revolution.
[正] Great changes have taken place in Fengcheng these years.
Step Ⅳ Poem enjoy (合作探究)
Underline the use of the present perfect voice in the following poem. Then fill in the chart below.
5.cost cost
10.draw drew/drawn
StepⅠ Review (复习)
1.dream dreamt
6.feel felt
2.drink drank/drunk 7.fight fought
3.eat ate/eaten 8.find found
4.fall fell/fallen 9.fly flew/flown
Homework 1.They have finished the construction of
the new railway lines by now. The construction of the new railway lines has been finished by them by now. 2. We have built a new library and a gymnasium in our school this year. A new library and a gymnasium have been built in our school this year by us.
必修二第二单元语法：现在完成时被动语态课件
The form of the present perfect passive voice
Verb form
Active __h_a_v_e_/_h_a_s_+_v_-_e_d____ Passive _h_a_v_e_/_h_a_s_b_e_e_n__+_v_-e_d
一、现在进行时被动语态
（一）构成 1. 肯定形式 is/am/are being done 2. 否定形式 is/am/are not being done
watch movies in the theater…
plane; high-speed rail
E-books
E-payment
Stream movies and music ; chat online…
Try to tell the changes according to the table using the present perfect passive voice.
Observe and analyze
Underline and compare the different verb forms. 1. Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life. 2. Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web.
找出下面句子的谓语结构，哪些是主动？哪些是被动？ 1. Jan’s life has been greatly improved by the Internet. 被动 2. The Internet has greatly improved Jan’s life. 主动 3. People have written much about the wonders of the World Wide Web.
人教版新教材必修二Unit3 The computer 语法：(现在完成时的被动语态)教学课件
3. Over time my memory has developed so much that … I never forget anything I have been told.
4. Since the 1970s many new applications have been found for me.
4. Car accidents have killed ten persons on this road in the past few months.
_T__e_n__p_e_r_s_o_n_s__ _h_a_v_e__b_e_e_n__k_i_ll_e_d__ (by car
accidents) on this road in the past few months.
5has been (design) to serve the human race. designed
Read and think: What is the same?
1. Over time the computer has been changed quite a lot. 2. With time going by, the computer has been made smaller,
5. We have used the TCM (Traditional Chinese medicine) to treat cancers for a long time.
_T_h_e__T__C_M_ __h_a_s__b_e_e_n__u_s_e_d__ (use) to treat cancers
quicker and cleverer.
have / has + been + Vpp. 3. It has been used in offices and homes from then on.
4. Since the 1970s many new applications have been found for me.
4. Car accidents have killed ten persons on this road in the past few months.
_T__e_n__p_e_r_s_o_n_s__ _h_a_v_e__b_e_e_n__k_i_ll_e_d__ (by car
accidents) on this road in the past few months.
5has been (design) to serve the human race. designed
Read and think: What is the same?
1. Over time the computer has been changed quite a lot. 2. With time going by, the computer has been made smaller,
5. We have used the TCM (Traditional Chinese medicine) to treat cancers for a long time.
_T_h_e__T__C_M_ __h_a_s__b_e_e_n__u_s_e_d__ (use) to treat cancers
quicker and cleverer.
have / has + been + Vpp. 3. It has been used in offices and homes from then on.
人教版高中英语必修二单元三 语法：现在完成时的被动语态(共17张PPT)
-1-
Unit 3 Computers
Period 4 The Present Perfect Passive Voice （现在完成时的被动语态）
-2-
Task1. Presentation
1.Over time I have been changed quite a lot.
2. …, I have been used in offices and homes since the 1970s.
2. 现在完成时被动语态的各种句式： [肯定式] have/has＋been＋done
The desks have been cleaned. 这些桌子擦干净了。
[否定式] have/has＋not＋been＋done The desks have not been cleaned. 这些桌子还没有擦干净。
-3-
II. Translation
1. Two windows have been broken．
两个窗子被破了。
2. The car has not been repaired．
这辆汽车还没有被修好。
-4-
3． ─Have the cars been repaired？ ─No，they haven't． 这些汽车修好了吗？ 不，还没有。
II. Choose the best answers. 1. All the preparations ____, and we're ready to start.
A. completed B. complete C. had been completed D. have been done
-14-
-16-
III. 用所给词的适当形式填空。
Unit 3 Computers
Period 4 The Present Perfect Passive Voice （现在完成时的被动语态）
-2-
Task1. Presentation
1.Over time I have been changed quite a lot.
2. …, I have been used in offices and homes since the 1970s.
2. 现在完成时被动语态的各种句式： [肯定式] have/has＋been＋done
The desks have been cleaned. 这些桌子擦干净了。
[否定式] have/has＋not＋been＋done The desks have not been cleaned. 这些桌子还没有擦干净。
-3-
II. Translation
1. Two windows have been broken．
两个窗子被破了。
2. The car has not been repaired．
这辆汽车还没有被修好。
-4-
3． ─Have the cars been repaired？ ─No，they haven't． 这些汽车修好了吗？ 不，还没有。
II. Choose the best answers. 1. All the preparations ____, and we're ready to start.
A. completed B. complete C. had been completed D. have been done
-14-
-16-
III. 用所给词的适当形式填空。
高一英语第三单元语法完成被动时态课件 必修二
car, park, upside down
motorbike, make, yet ?
keyboard, damage, how long
Oriental English College, set up, since 1994
A rocket has been launched recently. A hand has just been eaten by a crocodile. All men have been rescued by the firefighters so far. A car has been parked upside down. Has the motorbike been made yet? How long has the keyboard been damaged? Oriental English College has been set up since 1994.
感谢您的下载观看
Group work
Headmaster’s speech
Name
Prize
Wang Xiaoding
Hard work in his science project
Wu lei
Tops scores all year
Li Li
Excellent class monitor
Zhang Hong
Homework
Writing : Write a 5-sentence passage with the title: The schedule of our school development
9、静夜四无邻，荒居旧业贫。。*** 10、雨中黄叶树，灯下白头人。。**** 11、以我独沈久，愧君相见频。。***** 12、故人江海别，几度隔山川。。**** 13、乍见翻疑梦，相悲各问年。。***** 14、他乡生白发，旧国见青山。。**** 15、比不了得就不比，得不到的就不要。。。***** 16、行动出成果，工作出财富。。*** 17、做前，能够环视四周；做时，你只能或者最好沿着以脚为起点的射线向前。。**** 9、没有失败，只有暂时停止成功！。*** 10、很多事情努力了未必有结果，但是不努力却什么改变也没有。。**** 11、成功就是日复一日那一点点小小努力的积累。。***** 12、世间成事，不求其绝对圆满，留一份不足，可得无限完美。。**** 13、不知香积寺，数里入云峰。。***** 14、意志坚强的人能把世界放在手中像泥块一样任意揉捏。**** 15、楚塞三湘接，荆门九派通。。。***** 16、少年十五二十时，步行夺得胡马骑。。*** 17、空山新雨后，天气晚来秋。。**** 9、杨柳散和风，青山澹吾虑。。*** 10、阅读一切好书如同和过去最杰出的人谈话。**** 11、越是没有本领的就越加自命不凡。***** 12、越是无能的人，越喜欢挑剔别人的错儿。**** 13、知人者智，自知者明。胜人者有力，自胜者强。***** 14、意志坚强的人能把世界放在手中像泥块一样任意揉捏。**** 15、最具挑战性的挑战莫过于提升自我。。***** 16、业余生活要有意义，不要越轨。*** 17、一个人即使已登上顶峰，也仍要自强不息。****
高中英语人教版必修2《Unit 3 Period 3》课件
so far it________(translate)into 25 languages.
• 【答案】 • 1．have been collected 2.has been discovered • 3．has been tried 4.has been hit • 5．has been put off 6.has been translated
• The 31st Olympic Games haven't been held yet.
• 第31届奥运会还没有举行。
• Has his new novel been translated into English yet？他 的新小说被译成英语了吗？
• They haven't been told the exciting news yet，have they?
• They have put up a map on the wall.(主动语态)
• 他们已经在墙上挂上了地图。
• A map has been put up on the wall.(被动语态)
• 地图已经被挂在了墙上。
• (2)非延续性动词，如borrow，finish，begin，start， buy，marry，open，join等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，则要更换动词或时态。例如：
• 他们还没有被告知这个令人兴奋的消息，是吗？
• 3．使用现在完成时的被动语态要注意以下几点
• (1)一样来说，只有及物动词才有被动语态，由于只 有及物动词才可能有动作的承当者。但有许多由不 及物动词加介词或副词构成的短语，相当于及物动 词，可以有宾语，因此也能够有被动语态。但应注 意：短语动词是一个不可分割的整体，变为被动语 态时，不可丢掉构成短语动词的介词或副词。
• 【答案】 • 1．have been collected 2.has been discovered • 3．has been tried 4.has been hit • 5．has been put off 6.has been translated
• The 31st Olympic Games haven't been held yet.
• 第31届奥运会还没有举行。
• Has his new novel been translated into English yet？他 的新小说被译成英语了吗？
• They haven't been told the exciting news yet，have they?
• They have put up a map on the wall.(主动语态)
• 他们已经在墙上挂上了地图。
• A map has been put up on the wall.(被动语态)
• 地图已经被挂在了墙上。
• (2)非延续性动词，如borrow，finish，begin，start， buy，marry，open，join等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，则要更换动词或时态。例如：
• 他们还没有被告知这个令人兴奋的消息，是吗？
• 3．使用现在完成时的被动语态要注意以下几点
• (1)一样来说，只有及物动词才有被动语态，由于只 有及物动词才可能有动作的承当者。但有许多由不 及物动词加介词或副词构成的短语，相当于及物动 词，可以有宾语，因此也能够有被动语态。但应注 意：短语动词是一个不可分割的整体，变为被动语 态时，不可丢掉构成短语动词的介词或副词。
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Exercise 1: Change the sentences into the present perfect passive voice
Workers have built the house since two years ago.
动作的执行者 谓语动词 动作的承受者
The house has been built by workers since two years ago.
year 1.The bridge was built ( build) last year. are held (hold) 2.The Olympic Games every four years. years 3.The problem is being discussed (discuss) at the meeting now now. 4.His new book will be published (publish) next month month. 5.In decades, many parks In the last few decades have been designed __________ (design) to provide entertainment. 6. The machine was being repaired (repair) at this time yesterday yesterday. 7. She said the report had been typed (type) by for two weeks Li Mei for two weeks. 8. Miss Li said the book would be given (give) to the students the next morning. the next morning
Discovering useful structures from the passage on p18:
现在完成时(present perfect tense) 的被动语态：
S +have /has +been + done (过去分词)
1 Over time I have been changed quite a lot . 2 First as a PC and then as a laptop I have been used in offices and homes since the 1970s. 3 … I never forget anything I have been told ! 4 Since the 1970s many new applications have been found for me. 5 I have also been put into robots and used to make mobile phones… 6 I have even been put into space rockets and sent to explore the MOon and Mars.
A kind of intelligent robot has been developed by the scientists
主动语态谓语结构 一般现在时 do / does 一般过去时 did
现在进行时
被动语态谓语结构 am/is/are done was/were done am/is/are being done
4.现在完成时被动 语态特殊疑问句句型： 疑问词+ have /has + 主语+ been+过去分词 ...?
Where has the car been repaired? Who have been helped by the new computer? How many buildings have been built in this school?
Change the sentences into the present perfect passive voice
2 My friend has bought a new personal computer. A new personal computer has been bought by my friends • 3 The shop has repaired my computer very quickly. My computer has been repaired by the shop very quickly .
•The present perfect passive voice(疑问句）:
3.现在完成时被动语态一般疑问句句型： Have/Has +主语 + been+ 过去分词 ...?
Has a new computer been bought ? Have they been sent abroad to study English?
现在完成时的被动语态： the present perfect passive voice
S + have/has been +done(过去分词)
现在完成时的被动语态表达以下两个
概念： 1. 说话时已经完成的动作或出现的结果。 2. 主语是行为动作的承受者，
在使用现在完成时的被动语态时要注意以下两点： 1. 过去分词前有两个助动词 have / has 和 been。 2. 必须表示被动。
Her motorbike has been stolen.
2.现在完成时被动语态否定句句型： 主语+ have/has +not+ been+过去分词
The task has not been finished yet. Many skilled workers have not been trained in the company.
I wrote this passage. 1.及物动词（vt） This passage was written by me. The news excited us. 2.一些表示情绪，情感的词 We were excited at the news. The driver hurt himself in the accident. The driver was hurt in the accident.
2 A new bridge has been built in our city
many trees , plant, along the road
3 Many trees have been planted along the road
Make up the sentences using the present perfect passive voice.
1.Bruce writes a letter every week. →A letter is written by Bruce every week. 2. Li Lei mended the broken bike this morning. The broken bike was mended by Li Lei this morning 3. He has written two novels so far. →Two novels have been written by him so far. 4. They will plant ten trees tomorrow. →Ten trees will be planted by them tomorrow. 5. Lucy is writing a letter now. →A letter is being written by Lucy now. 6. You must lock the door when you leave. →the door must be locked when you leave
•Exercise 2: Making up sentences using present perfect passive voice:
The buildings, destroy, earthquake
The buildings have been destroyed in the earthquake;
4 My computer, just attack, an unknown virus.
My computer has just been attacked by an unknown virus
5 the problem, not ,solve, we, yet
The problem has not been solved by us yet.
I have been told about it many times． The bridge has just been built．
•The present perfect passive voice(肯定句、否 定句:
1.现在完成时被动语态肯定句句型： 主语+ have / has been +过去分词
Change the sentences into the present perfect passive voice
1 We have received many letters since last week.
Many letters have been received since last week.
has/have been done had been done
The structure of the passive voice
1.The horizon of life is broadened chiefly by the enlargement of the heart. （一般现在时） . 2.They were given a warm send-off.