九年级英语被动语态课件
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九年级英语 被动语态复习课件(共48张PPT)
They were discussing the problem when you
ca. lled .
.The problem was being discussed when you called.
Our homework .
现在完成时的被动语态：
has/have + been + v. pp
They have built many tall buildings in Wuxi
2. The meeting _______ when I came in.
A. was hold
B. was being held
C. were held
D. is held
3. The thief ________ by the police by nine
o’clock last night.
5. Millie is my best friend. I ___ often ____ to
her party.
A. is invited
B. am invited
C. are invited
D. was invited
6. Last year Beijing ____ by a big sandstorm.
Cooking is taught in our school. *被动语态：主语是动作的承受者 。
*被动语态的构成：主语+be +v. pp+(by…)
They don’t plant the trees. The trees are not planted by them.
被动语态的否定结构： 主语＋be + not + v. pp + (by---)
ca. lled .
.The problem was being discussed when you called.
Our homework .
现在完成时的被动语态：
has/have + been + v. pp
They have built many tall buildings in Wuxi
2. The meeting _______ when I came in.
A. was hold
B. was being held
C. were held
D. is held
3. The thief ________ by the police by nine
o’clock last night.
5. Millie is my best friend. I ___ often ____ to
her party.
A. is invited
B. am invited
C. are invited
D. was invited
6. Last year Beijing ____ by a big sandstorm.
Cooking is taught in our school. *被动语态：主语是动作的承受者 。
*被动语态的构成：主语+be +v. pp+(by…)
They don’t plant the trees. The trees are not planted by them.
被动语态的否定结构： 主语＋be + not + v. pp + (by---)
初三英语 被动语态精品课件
The lecture must be listened to carefully. （listen to是固定短语,介词to不能少。）
把下列句子改成被动语态 The parents looked after the baby carefully. (答案：The baby was looked after carefully by the parents.) He threw away the old clothes. (答案：The old clothes were thrown away by him.)
am / is / are + being + done have / has + been + done
The best chocolate is made in Switzerland. 最好的巧克力产在瑞士。
Fast trains are found in France and Japan. 法国和日本都有快速列车。
He showed me the ID card. (答案：The ID card was shown to me./
I was shown the ID card.)
My father bought me a beautiful skirt when I was fourteen years old. (答案：A beautiful skirt was bought for me by my father when I was fourteen years old. /I was bought a beautiful skirt by my father when I was fourteen years old. )
5. 含有双宾语的句子的被动语态
把下列句子改成被动语态 The parents looked after the baby carefully. (答案：The baby was looked after carefully by the parents.) He threw away the old clothes. (答案：The old clothes were thrown away by him.)
am / is / are + being + done have / has + been + done
The best chocolate is made in Switzerland. 最好的巧克力产在瑞士。
Fast trains are found in France and Japan. 法国和日本都有快速列车。
He showed me the ID card. (答案：The ID card was shown to me./
I was shown the ID card.)
My father bought me a beautiful skirt when I was fourteen years old. (答案：A beautiful skirt was bought for me by my father when I was fourteen years old. /I was bought a beautiful skirt by my father when I was fourteen years old. )
5. 含有双宾语的句子的被动语态
九年级英语Unit5被动语态课件(PPT34张)
⑸现在完成时的被动语态 have/has +been + spoken eg: My car has been repaired . 我的汽车已经修好了
4.带情态动词的被动语态
①基本构成形式：情态动词+be+过去分词 eg: This must be done as soon as possible. 这件事必须 尽快做。 eg: An art school may be opened next year. 明年可能 开办一所艺术学校 ②句式 肯定句：主语+情态动词+be+过去分词+by…. 否定句：主语+情态动词+not +be +过去分词+by… 一般疑问句：情态动词+主语+be+过去分词+by…. 特殊疑问句： 特殊疑问词（不作主语）+情态动词+主语+be原形+ 过去分词+by…. 特殊疑问词（作主语）+情态动词+be原形+过去分词 +by…. eg：When can my computer be repaired. 我的电脑什么时候能修好？
练习：将下列主动语态改为被动语态句子。 1. The computer club held a writing competition(竞赛）. A writing competition was held by the computer club. 2. The fastest player finished the game in eight hours .
was showed
will be held by Beijing
3. Miss Deng teaches us English. → We are taught English by Miss Deng . → English is taught to us by Miss Deng .
九年级被动语态完整 PPT
Eg、 My car broke down on my way to school、
2) 系动词--主动表被动
不要死背 feel/ sound/ look/smell/taste、、、、、、要多练
Eg、 The food smells bad、 Light music sounds soft、
1、 主动语态中得某些动词(使役动词),如 make,see,feel,let,hear,watch,notice,look等后常接不带 to得动词不定式(即do),但变为被动语态时+to 即make sb、 do = sb、 be made to do
常用被动语态得句式
It’s not known that… ……不得而知 It’s said that… 据说…… It’s reported that… 据报道…… It’s not decided that…尚未决定 It’s believed that… 据认为…… It’s announced that…据宣布…
九年级被动语态完整
【头脑风暴】
语态就是什么？被动语态？ 有几种语态？ 如何正确使用？ 、、、、、、
1
定义理解
Lead-in What is the passive voice?
I ate an apple just now、 我刚刚吃了一颗苹果。
The apple was eaten by me just now、 这个苹果刚刚被我吃了。
【分析思考】
I ate an apple just now、 我刚刚吃了一颗苹果。 主动语态 The apple was eaten by me just now、 这个苹果刚刚被我吃了。 被动语态
思考: 1、 主谓关系
2) 系动词--主动表被动
不要死背 feel/ sound/ look/smell/taste、、、、、、要多练
Eg、 The food smells bad、 Light music sounds soft、
1、 主动语态中得某些动词(使役动词),如 make,see,feel,let,hear,watch,notice,look等后常接不带 to得动词不定式(即do),但变为被动语态时+to 即make sb、 do = sb、 be made to do
常用被动语态得句式
It’s not known that… ……不得而知 It’s said that… 据说…… It’s reported that… 据报道…… It’s not decided that…尚未决定 It’s believed that… 据认为…… It’s announced that…据宣布…
九年级被动语态完整
【头脑风暴】
语态就是什么？被动语态？ 有几种语态？ 如何正确使用？ 、、、、、、
1
定义理解
Lead-in What is the passive voice?
I ate an apple just now、 我刚刚吃了一颗苹果。
The apple was eaten by me just now、 这个苹果刚刚被我吃了。
【分析思考】
I ate an apple just now、 我刚刚吃了一颗苹果。 主动语态 The apple was eaten by me just now、 这个苹果刚刚被我吃了。 被动语态
思考: 1、 主谓关系
九年级英语 被动语态 课件
2.含有动词短语的被动语态，不能丢掉其中的介词或副词。如：The baby is taken good care of.
3.感官动词和使役动词的被动语态。如：see sb do sth→sb be seen to do sth
4.过去分词做后置定语，表被动。如：a boy called Tom 5.过去分词做宾补，表被动。如：get/make/have sth done 6.某些动词形式是主动，但含有被动的意思。如：The classroom needs
2.______ the job ______ by Lucy or by John ? A. Has … finished B. Has …being finished C. Is …finish D. Has …been finished
Rules for the Chemistry Lab
1.Waste paper should be thrown into the paper basket.
3.一般将来时的被动语态:
will/be going to+be+过去分词
Practice :
1.The letter __w_i_ll_b_e__p_o_s_te_d____ (post)
tomorrow. 这封信明天将被寄走.
2.A new film _w_i_ll_b_e__sh_o__w_n_/__sh_o_w__e_d_____
5.现在完成时的被动语态的结构：
has/have been done
1.Meat _______ out in this shop . We can ____ now. A. have been sold , get nothing B. has been sold , get nothing C. has been sold , get some D. have been sold , get some
3.感官动词和使役动词的被动语态。如：see sb do sth→sb be seen to do sth
4.过去分词做后置定语，表被动。如：a boy called Tom 5.过去分词做宾补，表被动。如：get/make/have sth done 6.某些动词形式是主动，但含有被动的意思。如：The classroom needs
2.______ the job ______ by Lucy or by John ? A. Has … finished B. Has …being finished C. Is …finish D. Has …been finished
Rules for the Chemistry Lab
1.Waste paper should be thrown into the paper basket.
3.一般将来时的被动语态:
will/be going to+be+过去分词
Practice :
1.The letter __w_i_ll_b_e__p_o_s_te_d____ (post)
tomorrow. 这封信明天将被寄走.
2.A new film _w_i_ll_b_e__sh_o__w_n_/__sh_o_w__e_d_____
5.现在完成时的被动语态的结构：
has/have been done
1.Meat _______ out in this shop . We can ____ now. A. have been sold , get nothing B. has been sold , get nothing C. has been sold , get some D. have been sold , get some
九年级被动语态(共28张PPT)
The room_m__u_s_tn_’t__be__c_l_e_an_ebdy you today.
1.They will finish the work in ten days.
The work will be finished by them in ten days.
2.Tom is going to clean the room tomorrow.
The room is going to be cleaned by Tom tomorrow.
The song is sung. The cup was broken.
Grammar is interesting —— Passive Voice
被动语态
The books can be taken away. The flowers were watered
Many people visit the Great Wall. The Great Wall is visited by many people.
send two students to Hongkong to
study.
are going to be sent
Two students____ ____ ____ ____ ____
to Hongkong to study.
task
含有情态动词的被动语态结构：
can/may/must/should + be+过去分词 1. We can use grammar very well ．
她打开了书。 打开
She opened the book just now.
书被她打开了。被打开
The book was opened by her.
1.They will finish the work in ten days.
The work will be finished by them in ten days.
2.Tom is going to clean the room tomorrow.
The room is going to be cleaned by Tom tomorrow.
The song is sung. The cup was broken.
Grammar is interesting —— Passive Voice
被动语态
The books can be taken away. The flowers were watered
Many people visit the Great Wall. The Great Wall is visited by many people.
send two students to Hongkong to
study.
are going to be sent
Two students____ ____ ____ ____ ____
to Hongkong to study.
task
含有情态动词的被动语态结构：
can/may/must/should + be+过去分词 1. We can use grammar very well ．
她打开了书。 打开
She opened the book just now.
书被她打开了。被打开
The book was opened by her.
被动语态(21张PPT)初中英语专项复习课件
(4)特殊疑问句式 ①特殊疑问词(不作主语)+情态动词+主语+be原形+过 去分词 When can my computer be repaired? 我的电脑什么时候能修好？ ②特殊疑问词(作主语)+情态动词+be原形+过去分词 What must be done next? 下一步该做什么？
1.—Why does the earth look blue in space?
考点四 ：一般将来时的被动语态 (will+be+done；am/is/are going to+be+done)
A new school library will be built next year. 一个学校的新图书馆将明年建成。(肯定句) →A new school library won’t be built next year. (否定句，在will后加not) →Will a new school library be built next year? (一般疑问句，把will提句首)
A new school library is going to be built next year. 一个学校的新图书馆将明年建成。(肯定句) →A new school library isn’t going to be built next year. (否定句，在is／am／are后加not) →Is a new school library going to be built next year? (一般疑问句，把is／am／are提句首)
3.More chances _____B_ for students to learn from each
初三的英语被动语态详细讲解PPT课件
主
谓
宾(受动者)
The room will be cleaned by Tom tomorrow.
第6页/共32页
四.各种时态的被动语态构成
1.一般现在时：
S+am/is /are +过去分词
2.一般过去时：
S+was/were +过去分词.
3. 情态动词： 4.现在完成时
S+ can/may/must/should + be+过去分词. S+ have/has + been+过去分词.
Three thieves were caught by the policemen last night .
7 . I didn’t buy a dictionary .
第14页/共32页
9 . He will study English well .
English will be studied well by him .
一.被动语态基本用法
当句子的主语是动作的执行者时，谓语 的形式是主动语态。当句子的主语是动 作的承受者时，谓语要用被动语态。被 动语态由助动词be+过去分词构成，时
态通过be表现出来。
第1页/共32页
二.被动语态的结构:
be + 过去分词 （ 及物动词 ）
被动语态是英语动词的一种特殊形式 . 汉语中往往用
第4页/共32页
3．Amy can take good care of Gina ．
Gina can be taken good care of by Amy. 情态动词： S+ can/may/must/should + be+过去分词
初中英语语法——被动语态(共26张)ppt课件
.
三、主动语态和被动语态的构成及用法
◆被动语态的构成 1.被动语态的基本结构：be +动词过去分词 2.各种时态的主动被动语态结构
被动语态的基本结构： 主语+be +过去分词(+by+动作的发出者）
① 一般现在时：am/is/are+过去分词 Trees are planted every year.
.
◆被动语态的用法
1.不知道动作的执行者是谁。 2．没有必要指出动作的执行者是谁。 3．需要强调或突出动作的承受者时。 4．动作的发出者不是人时。
.
一、语态概述 英语的语态是通过动词形式的变化表现出来的。 英语中有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者。 Many people speak Chinese. 谓语：speak的动作是由主语many people来执行的。 被动语态表示主语是动作的承受者，即行为动作的对象。 Chinese is spoken by many people. 英语English是动词speak的承受者。
动词的语态
.
一、动词的语态定义： 动词语态是指特殊的动词形式，用以表示动作的主语和宾语之间的关系。
1）在need，want，require，deserve和bear等词的后面，动名词用主动形式表示被 动含义，其含义相当于动词不定式的被动形式。
The house needs repairing（to be repaired） 2）形容词worth后面跟动名词的主动形式表示被动含义，但不能跟动词不定式； 而worthy后面跟动词不定式的被动形式。
时的时间状语等。 基本结构：was/were+doing 否定形式：was/were + not + doing. 一般疑问句：把was或were放于句首。
三、主动语态和被动语态的构成及用法
◆被动语态的构成 1.被动语态的基本结构：be +动词过去分词 2.各种时态的主动被动语态结构
被动语态的基本结构： 主语+be +过去分词(+by+动作的发出者）
① 一般现在时：am/is/are+过去分词 Trees are planted every year.
.
◆被动语态的用法
1.不知道动作的执行者是谁。 2．没有必要指出动作的执行者是谁。 3．需要强调或突出动作的承受者时。 4．动作的发出者不是人时。
.
一、语态概述 英语的语态是通过动词形式的变化表现出来的。 英语中有两种语态：主动语态和被动语态。 主动语态表示主语是动作的执行者。 Many people speak Chinese. 谓语：speak的动作是由主语many people来执行的。 被动语态表示主语是动作的承受者，即行为动作的对象。 Chinese is spoken by many people. 英语English是动词speak的承受者。
动词的语态
.
一、动词的语态定义： 动词语态是指特殊的动词形式，用以表示动作的主语和宾语之间的关系。
1）在need，want，require，deserve和bear等词的后面，动名词用主动形式表示被 动含义，其含义相当于动词不定式的被动形式。
The house needs repairing（to be repaired） 2）形容词worth后面跟动名词的主动形式表示被动含义，但不能跟动词不定式； 而worthy后面跟动词不定式的被动形式。
时的时间状语等。 基本结构：was/were+doing 否定形式：was/were + not + doing. 一般疑问句：把was或were放于句首。
初三英语复习《被动语态》PPT课件
8 The ship model _w_i_ll_ be _m_a_d_e (make)
in two days.
Translate the following sentences.
1.我们必须采取措施以阻止河流的进一步污 染。
Something _______ _______ ______ to stop the river from being polluted more.
A. was taken place B. took place
5、主动形式表示被动含义。
---Don’t you like the material ?
---Yes , it very soft.
A. is felt
B. feels
6、It is + 过去分词+that从句用法。
It that there is plenty of oil off our coast.
2.过去时的被动语态： was/were+及物动词的过去分词
e.g:These new houses were built in 2000. My bike wasn’t made in Shanghai. Was this kind of machine made in Shenzhen?
注意：被动语态中be的形式是由主语决定的
5 If your homework _is__d_o_ne_(do) well,you may go to play.
6 Mr.Green was seen _t_o_g_r_o_w_ (grow) trees.
7 The blackboard was _lo_o_k_e_d_a_t_ (look) carefully by the students.
in two days.
Translate the following sentences.
1.我们必须采取措施以阻止河流的进一步污 染。
Something _______ _______ ______ to stop the river from being polluted more.
A. was taken place B. took place
5、主动形式表示被动含义。
---Don’t you like the material ?
---Yes , it very soft.
A. is felt
B. feels
6、It is + 过去分词+that从句用法。
It that there is plenty of oil off our coast.
2.过去时的被动语态： was/were+及物动词的过去分词
e.g:These new houses were built in 2000. My bike wasn’t made in Shanghai. Was this kind of machine made in Shenzhen?
注意：被动语态中be的形式是由主语决定的
5 If your homework _is__d_o_ne_(do) well,you may go to play.
6 Mr.Green was seen _t_o_g_r_o_w_ (grow) trees.
7 The blackboard was _lo_o_k_e_d_a_t_ (look) carefully by the students.
人教版九年级英语人教课标被动语态课件(共16张PPT)
[注意]当使用see/hear/watch sb. doing sth.时，变为被动语态时， doing保持不变。如：
I saw him going into the shop.(主动) He was seen going into the sh1. I heard Jenny singing at 7 this morning.
Jenny was heard singing at 7 this morning.
2. His mother made him wash his own clothes at the age of 10. He was made to wash his own clothes by his mother at the age of 10.
English is spoken by many people. ②He washed his shoes yesterday.
His shoes were washed by him yesterday.
翻译下列句子
1. 电视机关掉了。 The TV was turned off.
2. 那小偷被抓住了。 The thief was caught.
5. The farmers are cutting down the trees on the hill. The trees on the hill are being cut down by the farmers.
在被动语态中要注意的问题
①一些使役动词(let, have, make等)或感观动词(see, hear, watch, notice等)在主动语态中后面接的动词不定式不带to，但改为被动语态时，要 补上to。如： A. The boss makes the workers work 18 hours a day.
I saw him going into the shop.(主动) He was seen going into the sh1. I heard Jenny singing at 7 this morning.
Jenny was heard singing at 7 this morning.
2. His mother made him wash his own clothes at the age of 10. He was made to wash his own clothes by his mother at the age of 10.
English is spoken by many people. ②He washed his shoes yesterday.
His shoes were washed by him yesterday.
翻译下列句子
1. 电视机关掉了。 The TV was turned off.
2. 那小偷被抓住了。 The thief was caught.
5. The farmers are cutting down the trees on the hill. The trees on the hill are being cut down by the farmers.
在被动语态中要注意的问题
①一些使役动词(let, have, make等)或感观动词(see, hear, watch, notice等)在主动语态中后面接的动词不定式不带to，但改为被动语态时，要 补上to。如： A. The boss makes the workers work 18 hours a day.
人教版九年级英语 Unit5 被动语态 (共26张ppt)
2.含有双宾语的句子，主动句中的间接宾语或者直接宾语都可 变为被动语态中的一个主语，另一个保留不变。 变为主语的若是主动句中的直接宾语在变为间接宾语前则需加 介词to或for。 常用双宾语的动词：show/give/offer/send /bring/ lend/teach/buy。
The teacher gives the students some advice. 间接宾语 直接宾语
把下列句子变为含被动语态的句子。
1.Mr. Li corrects the students' homework every morning.
主语 谓语
宾语
The students' homework is corrected by Mr. Li every morning.
2.People play basketball all over the world. 主语 谓语 宾语
执行者）
当主语为动作的承受者时，谓语要用被动语态。
eg: English is spoken by many people. （被动语态, 句子的主语English是动作speak的承受者）
被动语态的基本结构是“助动词 be + 动词的 过去分词”，其中助动词be有人称、数和时的 变化。
主动语态变被动语态的方法
5. The teachers take care of the children. The children are taken care of by the teachers.
6. We speak English. English is spoken by us.
7. Mother often makes this cake. This cake is often made by mother.
被动语态(19张PPT)初中英语专项复习课件
(3) I tell them to follow the rules.
They are told_t_o__f_o_l_l_o_w___(follow) the rules.
1.see sb. doing sth. sb. be seen doing sth. 2.see sb do sth. sb. be seen to do sth. 3.tell sb. to do sth. sb. be told to do sth.
The apple smells sweet. 说明事物本身性质的动词：(1)wash、sell、read、write等。 The computer sells well. (2) need/require+doing/to be done： My car needs repairing/to be repaired.
3.非谓语+被动语态
(1)I saw him playing the guitar.
He was seen __p_l_a_y_i_n__g__(playing ) the guitar
(2)I see him open the door.
He is seen_t_o__o_p__e_n__(open) the door.
C. aren’t allowed D.weren’t allowed
判定语态 判定时态 正确书写 注意语义
被动语态特殊情况
1.不用被动： ① 不及物动词/不及物动词短语：take place,belong to,come true ② 系动词：look,sound,taste,feel,smell
主动语态：主语是动作的执行者
概念：主语是动作的承受者，动作的执行者由 by 引导的短 语表示，by 意为“被、由”
They are told_t_o__f_o_l_l_o_w___(follow) the rules.
1.see sb. doing sth. sb. be seen doing sth. 2.see sb do sth. sb. be seen to do sth. 3.tell sb. to do sth. sb. be told to do sth.
The apple smells sweet. 说明事物本身性质的动词：(1)wash、sell、read、write等。 The computer sells well. (2) need/require+doing/to be done： My car needs repairing/to be repaired.
3.非谓语+被动语态
(1)I saw him playing the guitar.
He was seen __p_l_a_y_i_n__g__(playing ) the guitar
(2)I see him open the door.
He is seen_t_o__o_p__e_n__(open) the door.
C. aren’t allowed D.weren’t allowed
判定语态 判定时态 正确书写 注意语义
被动语态特殊情况
1.不用被动： ① 不及物动词/不及物动词短语：take place,belong to,come true ② 系动词：look,sound,taste,feel,smell
主动语态：主语是动作的执行者
概念：主语是动作的承受者，动作的执行者由 by 引导的短 语表示，by 意为“被、由”
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• Lucy does the homework in the evening.
The homework is done by Lucy in the evening.
• They often use computers in class.
Computers are often used by them in class.
They often use computers in class. Computers are often used by them in class.
They make these machines in Beijing. These machines are made in Beijing.
2.一般过去时的被动语态结构：
疑问词＋be＋主语＋过去分词＋ (by ~) English is studied by many students.
English is not studied by many students.
Is English studied by many students? Who is English studied by?
• They built the tall building last year.
The tall building was built by them last year.
• He took good care of his little brother yesterday.
His little brother was taken good care of by him yesterday.
• We make these machines in Beijing.
These machines are made in Beijing.
句式 肯定句：主语＋be + 过去分词＋(by ~)
否定句：主语＋be not ＋过去分词＋(by ~) 一般疑问句：Be ＋主语＋过去分词＋(by ~)? 特殊疑问句：
was/were +过去分词
1. They bought ten computers last term．
Ten computers were bought by them last term. 2.We planted many trees last year.
Many trees wer in that factory.
Shoes are made by them.
主变宾,宾变主, 谓动be done 时不变,人称、数、格随着变
• They play football on Sunday. Practice
Football is played by them on Sunday.
5.Rice is planted in South China.
6.He is said a good boy .
语态
语态：表示主语和谓语动词之间的关系。 英语有两种语态，即主动语态和被动语态。
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。 如： Many students study English.(主动语态) English is studied by many students.
Practice
They play football on Sunday.
Football is played by them on Sunday. Lucy does the homework in the evening. The homework is done by Lucy in the evening.
(被动语态)
被动语态的结构
不同的时态有不同的被动语态结构
1.一般现在时的被动语态结构：
助动词be+及物动词的过去分词
助动词be有人称、数的变化,其变化规 则与be作为连系动词时一样。 如：The desk is made of wood.
The desks are made of wood. He is asked a question by the teacher.
1.Teenagers should be allowed to choose their own clothes.
2.English is spoken by many people .
3.The tickets about heroes are sold out .
4.Lucky 52 is watched on TV by many people .
1.Many students study English. English is studied by many students. 2.They make shoes in that factory. Shoes are made by themin that factory.
3.The teacher often asks him questions.
• We cleaned our classroom just now.
Our classroom was cleaned by us just now.
• They used this room for resting.
This room was used for resting by them.
He is asked questions by the teacher.
1.把主动语态的宾语变为被动语态的主语。 2.把主动语态的谓语变为被动语态的谓语。 3.把主动语态的主语变为被动语态的by
短语。（① by短语可以省。② by短语 后跟代词的宾格。）
主变被解题步骤
1. 找宾语 ----即动作的承受者 2. 判断宾语的单复数 ----即be动词的单复数. 3. 判断动词的时态 ----即be动词的时态. 4. 修改谓语的形式 ----即原句动词改为过去分词 5. 修改原句的主语 ----即by+ 宾语（原主语）.
The homework is done by Lucy in the evening.
• They often use computers in class.
Computers are often used by them in class.
They often use computers in class. Computers are often used by them in class.
They make these machines in Beijing. These machines are made in Beijing.
2.一般过去时的被动语态结构：
疑问词＋be＋主语＋过去分词＋ (by ~) English is studied by many students.
English is not studied by many students.
Is English studied by many students? Who is English studied by?
• They built the tall building last year.
The tall building was built by them last year.
• He took good care of his little brother yesterday.
His little brother was taken good care of by him yesterday.
• We make these machines in Beijing.
These machines are made in Beijing.
句式 肯定句：主语＋be + 过去分词＋(by ~)
否定句：主语＋be not ＋过去分词＋(by ~) 一般疑问句：Be ＋主语＋过去分词＋(by ~)? 特殊疑问句：
was/were +过去分词
1. They bought ten computers last term．
Ten computers were bought by them last term. 2.We planted many trees last year.
Many trees wer in that factory.
Shoes are made by them.
主变宾,宾变主, 谓动be done 时不变,人称、数、格随着变
• They play football on Sunday. Practice
Football is played by them on Sunday.
5.Rice is planted in South China.
6.He is said a good boy .
语态
语态：表示主语和谓语动词之间的关系。 英语有两种语态，即主动语态和被动语态。
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。 如： Many students study English.(主动语态) English is studied by many students.
Practice
They play football on Sunday.
Football is played by them on Sunday. Lucy does the homework in the evening. The homework is done by Lucy in the evening.
(被动语态)
被动语态的结构
不同的时态有不同的被动语态结构
1.一般现在时的被动语态结构：
助动词be+及物动词的过去分词
助动词be有人称、数的变化,其变化规 则与be作为连系动词时一样。 如：The desk is made of wood.
The desks are made of wood. He is asked a question by the teacher.
1.Teenagers should be allowed to choose their own clothes.
2.English is spoken by many people .
3.The tickets about heroes are sold out .
4.Lucky 52 is watched on TV by many people .
1.Many students study English. English is studied by many students. 2.They make shoes in that factory. Shoes are made by themin that factory.
3.The teacher often asks him questions.
• We cleaned our classroom just now.
Our classroom was cleaned by us just now.
• They used this room for resting.
This room was used for resting by them.
He is asked questions by the teacher.
1.把主动语态的宾语变为被动语态的主语。 2.把主动语态的谓语变为被动语态的谓语。 3.把主动语态的主语变为被动语态的by
短语。（① by短语可以省。② by短语 后跟代词的宾格。）
主变被解题步骤
1. 找宾语 ----即动作的承受者 2. 判断宾语的单复数 ----即be动词的单复数. 3. 判断动词的时态 ----即be动词的时态. 4. 修改谓语的形式 ----即原句动词改为过去分词 5. 修改原句的主语 ----即by+ 宾语（原主语）.