这道题用主动语态还是被动语态?When Mr.Wang told us this good news,all of us

The girl is heard to sing in the next room.

The book has been read by us

比如
i am doing my home work - am doing
my home work is done by me - is done
宾 + BE + 过去分词 + （BY 主语）有时会省略如：
my work is done.

主动句转被动句
1 his mother told him not to waste time on fishing.
2 Father gave me a toy at Christmas.
3 This factory produces machine tools.
4 They should do it at once.
5 He is likely to let you down.
6 They named the child tom.
答案
1 He was told not to waste time on fishing (by his mother).
2 I was given a toy at Christmas (by my father).
3 Machine tools are produced in this factory.
4 It should be done at once (by them).
5 You are likely to be let down.
6 The child was named tom.
以上几个例子都是从语法书摘抄的.代表了几种不同形式的被动变法.12是不同的动宾短语中宾语变被动；3是一般句子变被动；4是情态动词变被动；5是不定式变被动；6是主—动—宾—补结构的主动句变被动.
把下列句子变成被动语态
1.We found some jewels in a box.
2.The teacher is keeping the pupils at school for a revision.
3.James has left a parcel for you.
4.You must finish the article before Friday.
5.They will not paint the house again next year.
6.They promised Mary a new doll for her birthday.
7.I have told the children many times not to skate on the pond.
8.Where did he translate the story?
9.We had to repair our TV set.
10.Do they take good care of the sick?
11.They company has paid the workers very handsome wages.
12.They showed me the room where they lived.
把下列句子变成主动语态
1.Spanish is spoken in South America.
2.The plans will have to be revised.
3.All the words must be looked up in a dictionary.
4.Has John been cured of his heart illness?
5.The door should not have been left open all night.
6.We are afraid that we may be attacked at night.
7.We are being taught how to operate the new machine.

He was laughed by all the people.
The bikes were made in the factory.
He will be given a present for his birthday by his sister.(A present will be given to him for his birthday by his sister.)
English is found very useful by me.
The boys should be allowed to play games.

We plant many trees every year. Many trees are planted by us every year. My father bought me a gift yesterday. A gift was bought by my father yesterday. People use computers everyday. Computers are us...

1 Part-time assistant is wanted.
2 Jeselly is bought and sold.
3 Credit cards are accept.
4 Afernoon tea is served.
5 No dogs are allowed.

是英语吗?
一、主系表结构：本结构是由主语+系动词+表语组成,主要用以说明主语的特征,类属,状态,身份等.
eg:1、Our English teacher is thirty years old.
2、The cake tastes delicious.
二、主谓结构：本结构是由主语加不及物的谓语动词构成,常用来表示主语的动作.
eg：3、He came back when we were eating.
4、 Weak buildings will fall down in an earthquake.
三、主谓宾结构:本结构是由主语+及物的谓语动词+宾语构成.宾语成分的多样化使得这一结构异常复杂.
eg：5、They haven’t decided where to go next.
6、She stopped teaching English two years ago.
四、双宾语结构：此结构由“主语+及物谓语动词+间接宾语（人）+直接宾语（事物）”组成.如：He brings me cookies every day.
但若要先说出直接宾语（事物）,后说间接宾语（人）,则要借助于介词to或for.如：He brings cookies to me every day.
She made a beautiful dress for me.
用to侧重指动作的方向,表示朝着,向着,对着某人.
用for 侧重指动作的受益者,表示为了某人,替某人.
五、复合宾语结构:此结构由“主语+及物的谓语动词+宾语+宾语补足语”构成.宾语补足语用来补充和说明宾语的性质和特点,若无宾语补足语,则句意不够完整.可以用做宾补的有：名词,形容词,副词,介词短语,动词不定式,分词等.
eg：7、He used to do his homework with his radio on.
8、My mother asked me to clean my room.
9、The teacher made all students finish their homework on time.
六、There be 句型：此句型是由“there+be+主语+状语”构成,用以表达存在关系可以称“……有……”.它其实是全倒装的一种情况,主语位于谓语动词 be 之后,there 仅为引导词,并无实际语意.此句型有时不用be动词,而用 live,stand,come,go,lie,remain,exist,arrive等,但一般不用have.如：
There stands a hill in the middle of the park.
Once upon a time there lived an old king in the town.
剩下的找不到了,基本的简单的就是这几个了!

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，被动语态表示主语是动作的承受者。如： Many people speak English．（主动语态） English is spoken by many people．（被动语态）

1.The car has been repaired by someone.
2.Some tea was made for her friend by Mrs.Smith.

Silk is produced by them in Hang zhou.

这一类 need,want,require（要求,需要）,deserve(应得,值得),be worth值得）,not bear(经不住) 后面接doing主动表被动.下面这一类用法近似于系动词,但其后通常只能跟副词.这类动词有：cook（煮）,clean（擦）,compar...

主动语态通俗的说就是句子不包含"be+动词的过去分词",把被动转变为主动,通常是调换一下主语的位置,使动作的实施者提前
1.He waters the flowers every day.
2.We enjoy this song.
3.Jim often cooks supper.
4.这句子看起来是主动的
5.She turns off the light when she goes out.

一般是sth is adj to be done表示被动,而 it's adj to do多为主动用法,比如Homework is easy to be finished/it's easy (for me) to finish the homework,两种表达形式而已,不用纠结

We built this library last yearThe library was built by us last year.2. I watched TV yesterday evning.TV programes yesterday evening was watched by me.这个没什么意思3. He passed me a book .The book was passed to me by him.4. She heard me sing in the next room .My song was heard by her in the next room5. They didn’t finish his homework yesterdayHis homework for yesterday was not finished.6. Did you play football on the playgroundyesterday?Was the football played by you on the playgroud yesterday? 这个没什么意思
7. Where did you fly a kite ?Where the kite was flied by you?8. When did they read this book?When this book was read by them?9. What did you use it for ?What it was used for by you?10. He asked me not to go there.I was asked by him not to go there.

主动语态：Time is money./ Man treat time as money.
被动语态后面的补足语称作主语补足语,句中的to be money即是主语补足语,修饰主语time.

英汉词典的例句：
(The snow soon melted away. 雪不久就化了)
melt 是主动式.
The snow is melting into water. 是进行时.
你课文上的句子原文是怎么写的呢?

1The manager is said yhat they would complete the project by the end of the year.
2The rooms are being painted.
3This time last year the trees were being planting here .
4The price has been brought down.
5He had been considered to be a great leader.
6your compositions must be handed in after class
7Plenty of jobs will be given to school-leavers.
8I was told that the worker would mend the car as soon as possible.
9The English lessons is being broadcasted by radio.
10The road was being mended by the workers.
11Someone has told me the sports meet might be put off.
12When I got to the theatre,I found they had already sold out the tickets.
13He can write agreat many letters with the compute

is this room ever aired by anyone
are these rooms being cleaned by anyone
will this knife be sharpened by anyone
have they been taken to school yet by anyone
haven't these models been bought yet by anyone
haven't they been invited yet by anyone

1、this specialpen was invented by Zhang jie .
2、Jim my.fixed up the bike.
3、sung glasses were used by people to prote cttheir eyes.
4、 students are allowed to put up hands in class.
不懂追问.

teachers and old people are repected by Chinese
lu xun is known by us as a grest thinker and writer.
Why he is called Mr Know-all by them
Is the baby taken good care of by the wiman
Li lEI is asked by me to help me with my math

在主动语态含有情态动词的时候,语态不用考虑.没有这样的说法.只不过是MUST没有时态区别而已.主动变被动.仍然是主动什么时态,被动什么时态
主动什么语气,被动什么语气
All this damage couldn't have been done by children
额.我来回答吧.我和lynnelinxue的不矛盾.他只是告诉你这句话有虚拟语气在里面.而我告诉你,不管主动句是什么时态,什么语气,被动句都要对应着翻译.
看在我解释这么辛苦的份上.你觉得该给谁分呢.

Such things were never heard by him before.

I am given a beautiful present by my friend.A beautiful present is given to me by my friend.The young woman was made to move her car by the policeman.(被动语态时不加to的不定式要还原)Tea is grown by pe...

A Canadian(楼主写错了?) doctor invented the basketball.

一般现在时：Teachers are needed badly here.这儿及需要教师.
现在进行时：A modern hospital is being built in this area.
一般过去式：A modern hospital was built in this area last year.
过去进行时：A modern hospital was being built in this area then.
现在完成时：A modern hospital has been built in this area.

1.That mechanic repaired thia car .
2.(1)knives
3.be finished
4.will be known
5.haven't be told
不知道对不对啊

My parents allow me to be in the movie on weekends、
Our teacher allows us to study in a group to improve our English.
In our school,our headmaster doesn't allow fighting
Our parents allow making big mistakes.
We should be allowed to pay more attention to our interest
We aren’t allowed to break the law.

答案： This area will built a new road next year.

Having finished my work,I drove home alone.
Copied again and again,this article became more and more popular.

We should dig a hole for the young tree.
也可以使用其他人称

主动语态改为被动语态要注意两个问题:
1.主语该成宾语,宾语改主语
例:I will show you out.(我会带你出去) 在这里 you 是宾语,I 是主语
那就改成,you will be shown out by me.:
2.动词时态改被动语态.
例:Do people speak English in your country?在这里,该句是一般时,那就要该成一般被动语态,Is English spoken in your country?

主动语态和被动语态互换. Is the floor swept every day ?
They sweep the floor everyday.
Does the girl often draw picture ?
The picture is often drawn by the girl.
They don't often sing this song .
This song is not often sung by them.

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,和汉语的完全一样
例如：They will build a new bridge.(主动)
A new bridge will be built by tnem.（被动)

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,被动语态表示主语是动作的承受者.如：Many people speak English．（主动语态）English is spoken by many people．（被动语态）1．被动语...

被动语态通常以物作主语,句子中会有be done的形式出现,有些基础点的后面还会加by.
主动语态就是一般以人做主语,没有be done的形式!
区别：被动的语句会有be done 的形式,物体为主语!
转换：就是被动的话,将里面的人和物的位置换了,不要be done的形式,动词依据句子的时态来!

主动语态和被动语态 1 ．在英语中,动词有两种语态,即主动语态（ The Active Voice ）和被动语态.（ The Passive Voice ）.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.实际上被动语态的主语是由主动语态的谓语动词的宾语转变而来的,因此这个谓语动词必须是及物动词.被动语态是由助动词 be + 过去分词构成,当然,被动语态也有多种时态,它的时态变化都体现在助动词 be 上,后面的过去分词不变.被动语态的谓语动词的执行者可由 by 引出,往往放在句末.如不强调动作的执行者时,可省略不用.例如：Many people speak English.（主动语态） English is spoken by many people.（被动语态） 2 ．一般现在时被动语态的构成：当谓语是一般现在时的时候,被动语态由“ be (am,is,are) + 及物动词的过去分词”构成.助动词“ be ”随人称、数的变化而改变.例如：This knife is made of wood and metal.Bananas are produced in Hainan.I am taken care of by my uncle.3 ．被动语态的用法：当说话者不知道动作的执行者或没有必要指出动作的执行者时,只需要强调动作的承受者,要求使用被动语态.如果需要在被动语态中指出动作的执行者时由介词 by 引导.Chinese is spoken by the largest number of people in the world.中文是全世界被最多人口所讲的语言.4 ．主动语态改写成被动语态的方法：将主动语态的宾语变成主语,将主动语态的谓语变成被动式 be + 过去分词,主动语态的主语变成被动语态句中 by 的宾语（或省略）.如果主动语态中有两个宾语（直接宾语或间接宾语）,可以把其中任意一个变成被动语态的主语.例如：Most middle school students play football.主语 谓语 宾语 Football is played by most middle school students.My teacher gives me a lot of book.（主动语态） 主语 谓语 间宾 直宾 被动语态：I am given a lost of books by my teacher.被动语态：A lot of books are given to me by my teacher.5 ．被动语态的疑问形式：被动语态的疑问句形式是在肯定句的基础上,把 be 动词提到句首,句末加问号构成的.如：Is the kite made by Xiao Ming?这个风筝是小明做的吗?其肯定回答和否定回答分别为：Yes,it is.是的,它是.No,it isn ' t.不,不是.6 ．被动语态的否定形式：被动语态的否定形式是在肯定句中的系动词后加 not 构成的.例如：The cake isn ' t made by his mother.蛋糕不是他妈妈做的.

Then we watered and watched the trees carefully.

__Do__ people ___grow__ wheat in North China?

We speak English.找出主动语态的宾语做被动语态的主语,然后选择正确的时态

prove是个常用动词,也是一个多义动词.由于它的用法比较复杂,现归纳如下
一、prove作"证明;证实"解时,用法如下:
1.prove+名词/代词
He has proved his courage in the battle.他已在作战中证明了他的勇气.
This further proved the strength of our economy.这进一步证明了我们的经济实力.
Can you prove that?你能证实那一点吗?
2.prove+直接宾语(sth.)+to+间接宾语(sb.)
The difficulty was how he could prove his ideas to other scientists.困难在于他怎样向其他科学家证实他的想法.
Can you prove your theory to us?你能向我们证实你的理论吗?
3.prove+宾语+宾语补足语
(1)形容词作宾语补足语
They proved themselves wise and brave.他们证实自己机智、勇敢.
Facts have proved these worries groundless.事实证明,这些忧虑是没有理由的.
(2)名词作宾语补足语
She proved herself an able secretary.她证实自己是个能干的秘书.
He has proved himself a success.他已证明了自己是个成功者.
(3)动词不定式作宾语补足语
All this proved him to be an honest man.这一切都证明他是一个诚实的人.
The experiment proved his theory to be important to our research.实验证明他的理论对我们的研究是重要的.
4.prove+宾语从句
Galileo proved that the earth and all other planets move around the sun.伽利略证实地球和所有其它的行星都是绕太阳运转的.
But Einstein was able to prove that light coming from the stars was bent as it passed the sun.
然而爱因斯坦却能证明从恒星来的光线当其经过太阳时变弯曲了.
Can you prove where you were on May 10th?你能证实五月十日你在什么地方吗?
二、prove作"证明是;结果是;事实说明"解时,用作连系动词,可用于以下句型:
1.prove+形容词
The handbook proved most useful.这本手册证明很有用.
The medicine proved satisfactory.结果证明这药疗效令人满意.
2.prove+名词
She proved a very strict teacher.结果证明她是一位非常严格的老师.
His efforts,however,proved a failure.但他的努力结果都失败了.
3.prove+介词短语或副词
Perhaps this book will prove of some use to you in your studies.也许这本书会对你的研究有用处.
The power station was completed and proved up to standard.这座发电站建成了,证明质量符合标准.
4.prove+动词不定式
As time went on,Einstein's theory proved to be correct.随着时间的推移,爱因斯坦的理论证明是正确的.
She may prove to be the most suitable person for the job.结果她可能是最适合干这项工作的人.
--------------------------------------
用作连系动词,无被动语态

公式：be+动词的过去分词 /应用范围：表示被动的情况,一般是及物动词有被动语态,切记不及物动词与一些固定词组是没有被动语态的.例如：happen, take place //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.巧记为：主动、主动、主去动. ///例如：Many people speak English. //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.巧记为：被动、被动、主被动.例如：English is spoken by many people.主语English是动词speak的承受者. //主动态和被动态指的是动词形式,是词法概念；而主动句和被动句则指的是句子结构,从而是句法概念.所谓主动句就是由主动态动词(词组)作谓语动词的句子,而被动句则是由被动态动词(词组)作谓语动词的句子. //例如：He opened the door.他开了门.(主动句) //歌诀：谁做的动作不知道,说出谁做的没有必要； /主动语态变被动语态的方法 //(1)把主动语态的宾语变为被动语态的主语. //(2)把谓语变成被动结构(be＋过去分词) //(根据被动语态句子里的主语的人称和数,以及原来主动语态句子中动词的时态来决定be的形式). //(3)把主动语态中的主语放在介词by之后作宾语,将主格改为宾格.例如： //All the people laughed at him. //He was laughed at by all people. //They make the bikes in the factory. //The bikes are madeby themin the factory. //歌诀是：宾变主,主变宾,by短语后面跟. //谓语动词变被动,be后“过分”来使用. ///The door was opened.门被开了.(被动句) //二、被动语态的构成 //被动语态由“助动词be＋及物动词的过去分词”构成.人称、数和时态的变化是通过be的变化表现出来的.现以teach为例说明被动语态在各种时态中的构成. /被动语态的用法 //(1)不知道或没有必要说明动作的执行者是谁. //例如： //Some new computers were stolen last night. //一些新电脑在昨晚被盗了.(不知道电脑是谁偷的) //This book was published in 1981.这本书出版于1981年. //(2)强调动作的承受者,而不强调动作的执行者. //例如：the window was broken by Mike.窗户是迈克打破的. //This book was written by him.这本书是他写的

被动语态有动词的过去分词做标志,而且句意上也会有差别

这种句子一般不会用被动语态,但硬要改的话就是：
Computer games are played by Tom.

I am hit by her.
I am hurt by the dog.
She is praised by the teacher.
I am phoned.
The light is turned on.

一句话,你的思路是对的!答案均有误!
第一句应为：You are not allowed to..
第二句应该用助动词will,因为原句的shall并非情态动词.这里被动句的主语是三人称了.

i was given a new bicket by father
the trousers were shortened by my mother for me
your tickets will surely be checked by the conductor
a model ship will be made by me uncle for me
your car must be checked once a month
you can answer the question easily
you should call for a doctor
they are building a big department store in this neighborhood
you must not walk on this lawn
they made the car ten years ago

1.Her mother gave her a new coat.
2.He didn't leave the classroom until the bell rang.
3.Pens are used to write.
4.Even though