一、主动语态
主语是谓语动作的使动方。也就是说谓语的动作源自主语，而施加于宾语。相反，被动语态中，主语是谓语动作的受动方，如果有宾语的，宾语往往是谓语动作的使动方。 在语法机构上，主动语态和被动语态的区别主要在于，主动语态直接使用动词原形作为谓语，然后再在该动词原形的基础上施加时态和其他语法；而被动语态则使用系词+动词的过去分词作为谓语，各种时态和其他语法也施加在系词上。
二、被动语态
英语中的被动语态使用得比汉语要多，要普遍，许多课本及
还有假主动，真被动的十几个常用词的用法，以及so heavy to carry而不用so heavy to be carried 等习惯用法。有关这类情况，做到心中有数对全面掌握被动态，en211 准确解答习题非常关键，被动态必须涉及的是动词的`各种时态变化的问题。英语的时态本来很复杂，怎样记住各自的被动形式呢? 首先要明确"将来进行无被动，现在完成进行同"。这两种时态无被动形式。
另外，不及物动词带有同源宾语的动词，反身代词的动词和系动词都无被动形式。即便如此，还有不定式，动名词，分词，以及它们的复合结构)的被动态，再加上情态动词，助动词以及它们的疑问式和否定式从中掺杂，真是令人头痛，眼花缭乱。下面口诀就以动词do为例，即do did过去式done过去分词，以口诀形式总结各种时态的被动态，一定对你有所启示。 被动语态的句子通常是以Be-Passive(即"be+过去分词")的形式来表达，但也可以Get-Passive(即"get+过去分词")的形式来表达，例如：He got punished today. Get-Passive是一种新兴的被动语态形式；相对来说它的使用还没有Be-Passive那么广泛，一般限于口语和非正式书面语；但它却有着用得愈来愈多的趋势，是一种生气蓬勃的语言现象。 如果要特别强调动作或行为的执行者时，句子后面需接by～，译为“被（由）……”。
1 被动语态的句型 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：疑问词+be +主语+过去分词+（by～）？ 被动语态的时态是由be的时态决定的，be是什么时态，全句就是什么时态，be动词后面的过去分词不变。
一、 被动语态的用法：
一般现在时的被动语态构成：is / am / are + 及物动词的过去分词 Our classroom is cleaned everyday. I am asked to study hard. Knives are used for cutting things.
2. 一般过去时的被动语态构成：was / were + 及物动词的过去分词 A new shop was built last year. Dinosaur eggs were laid long long ago.
3. 一般将来时的被动语态构成：will+ be + 及物动词的过去分词 A new hospital will be built in our city. Many more trees will be planted next year.
4. 现在进行时的被动语态构成：am / is / are + being + 及物动词的过去分词 Uncle Wang is mending my bike now.→ My bike is being repaired by Tom now. They are planting trees over there. → Trees are being planted over there by them.
5. 现在完成时的被动语态构成：has / have + been + 及物动词的过去分词 This book has been translated into many languages. Many man-made satellites have been sent up into space by many countries.
6.过去进行时的被动语态构成：was/were + being + 及物动词的过去分词 The boy was being operated on when his parents hurried to the hospital. The new road was being made.
7.过去完成时的被动语态构成：had + been + 及物动词的过去分词 The classroom hadn’t been cleaned before the teacher came. The tickets had been sold out berore I came to the cinema.
8.将来完成时的被动语态构成：shall/will + have done They will have been married for 20 years by then. The project will have been completed before May.
9.含有情态动词的被动语态构成：情态动词+ be + 及物动词的过去分词 Young trees must be watered often. Your mistakes should be corrected right now. The door may be locked inside. Your homework can be handed in tomorrow.
二、 怎样把主动语态改成被动语态?
把主动语态改为被动语态非常简单，可以遵循以下几个步骤：
1. 先找出谓语动词；
2. 再找出谓语动词后的宾语；
3. 把宾语用作被动语态中的主语；
4. 注意人称、时态和数的变化。 例：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.
三、 使用被动语态应注意的几个问题：
1. 不及物动词无被动语态。 What will happen in 100 years. The dinosaurs disappeared about 65 million years ago.
2. 有些动词用主动形式表示被动意义。 This pen writes well. This new book sells well.
3. 感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 。 例：make somebody do something→somebody+ be +made to do something see somebody do something→somebody +be +seen to do something A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by. The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.
4. 如果是接双宾语的动词改为被动语态时，直接宾语(物)作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定。 He gave me a book.→A book was given to me by him. He showed me a ticket.→A ticket was shown to me by him. My father bought me a new bike. →A new bike was bought for me by my father.
5. 一些动词短语用于被动语态时，动词短语应当看作一个整体，而不能丢掉其中的介词或副词。 We can’t laugh at him. →He can’t be laugh at by us. He listens to the radio every day. →The radio is listened to by him every day. The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse
做好充足的心理准备
从头开始学习英语的同学经常感到焦虑，遇到小挫折就想退却：
“我记忆力不是很好，背单词是不是会很难？”
“我就是发不准单词的音，我是不是没有天分？”
其实，感到困难是很正常的，英语毕竟是一个与汉语完全不同的语言体系，但只要经过一段时间的训练，建构起了科学的知识逻辑，就能高效地掌握学习英语的方法了。
把掌握音标作为学习英语的第一项任务
许多人的不标准口音，都是学习初期忽视音标、缺乏练习造成的，但对零基础的同学们来说，这正是一个开好头的绝佳机会。
但拥有标准的发音会大大增强他们的.自信感和成就感，同时，掌握音标也意味着领悟一种更便捷的单词拼写方式，而不再依赖于死记硬背。
借助基础教材，记忆一些简单的单词和句子
在背单词的过程中，初学者往往会有两个误区：一是单词纯靠背诵记忆，二是词汇量越多越好。前者可以利用音标进行记忆，而后者的误区在于你会背的单词≠你会用的单词。
实际上零基础的同学，应该避免一上来就刻意去背单词、背课文，而是先掌握最基础、最常见的单词和简单句子。
许多复杂的单词是由基础词汇复合而成，复杂句也是由简单句组成的，因此，深度掌握核心词汇和句型，有利于后期词汇量的叠加和对语法的理解。
一个优秀的老师进行指导。
学习音标可以通过跟读等方式进行自学，单词也可以通过字典等资源自行消化。但当同学们试图按照音标→单词→句子→文章的顺序不断进阶时，老师还是非常有必要的一个枢纽。
一方面，零基础自学往往较为迷茫，不知道正确的学习方法和顺序，而老师已经将包括语法在内的规则性知识整理归纳，可以省去自己摸索的过程；另外，授课可帮同学更直接地认识自己的问题，也有利于针对性地答疑解惑。
句子的种类可分为陈述句、疑问句、祈使句和感叹句。
1. 凡是说明一件事情，提出一个看法，或者表达一种心情的句子都是陈述句。大多数的句子都是陈述句，它可以用肯定式和否定式，句末用句号"."，通常用降调。
掌握陈述句的肯定式和否定式的构成及用法。
e.g. We live in Tianjin. （肯定句）我们住在天津。
We don't live in Shanghai. （否定句）我们不住在上海。
注意：（1）在一般现在时的肯定式中，主语是第三人称单数时，动词要改成第三人称单数形式。
e.g. John studies Chinese very well.
（2）一般现在时和一般过去时的否定式要加助动词do （does）, did.
e.g. I don't like swimming. 我不喜欢游泳。
He doesn't have lunch at home every day. 他每天不在家吃午饭。
They didn't play football yesterday. 他们昨天没有踢足球。
2. 掌握一般疑问句、特殊疑问句、选择疑问句和反意疑问句的构成、用法和答语。注意在一般现在时和一般过去时的疑问句要加助动词do（does）, did.
e.g. Do you often speak English at school ? 在学校你常讲英语吗？
Does she have a brother ? = Has she got a brother ? 她有兄弟吗？
Did it take you two hours to do your homework last night ?
昨天晚上做作业花了你2个小时吗？
What do you often do on Sundays ?
星期日你常常干什么？
When does your father get up every morning ?
你父亲每天早晨几点钟起床？
Why didn't your teacher come to school yesterday ?
昨天你们的老师为什么没来学校呢？
提出两种或两种以上的情况，要求对方选择一种，这种疑问句叫选择疑问句。结构是："一般疑问句＋or＋一般疑问句"，但常把后一部分里面和前一部分相同的成分省略。说明or前面部分用升调，后面部分用降调。
e.g. Is her brother an artist or a doctor ?
她的兄弟是一个艺术家还是个医生？
Would you like tea or coffee ?
你愿意喝茶还是喝咖啡？
Shall we go to the cinema on Saturday or on Sunday ?
我们是周六还是周日去电影院？
反意疑问句表示提问者有一定的主见，但没把握，希望对方来证实。
注意反意疑问句的结构是：肯定的陈述句＋否定的疑问句（缩略形式）
或：否定的陈述句＋肯定的疑问句（缩略形式）
两部分的人称和时态要一致。
特别要注意否定的疑问句中的助动词必须缩写，主语（最后一个词）必须是代词而不能是名词。
e.g. Your sister has ever been to Shanghai , hasn't she ?
你姐姐曾经去过上海是吗？
The boys didn't find anything , did they ?
男孩子们什么也没找到/发现，是不是？
在回答反意疑问句时，要根据事实而定，事实是肯定的要回答Yes , …，事实是否定的要回答No, ….
e.g. He isn't going to the meeting , is he ?
他不去参加会，是吗？
Yes , he is . 不，他要去。
No , he isn't. 是的/对，他不去。
It didn't snow last week , did it ?
上周没有下雪，对吗？
Yes , it did. / No , it didn't. 不，下雪了。是的，没下雪。
3. 掌握祈使句的肯定式和否定式。祈使句没有主语。指让对方做某事，动词要用原形。表示请求，命令、建议等。
e.g. Go back to your seat , please. 请回到你的座位上去。
Don't make so much noise. 不要吵吵闹闹。
Let's go to school together ! 咱们一起上学去吧！
（let's是含有第一人称主语的祈使句）
Let him help the child. 让他帮助那个孩子。（let him是含有第三人称主语的祈使句）
注意：否定形式是Let's （us , me）+not +动词原形
e.g. Let's not say anything about it.
对于这件事，咱们什么也不要说了。
4. 表示喜怒哀乐等强烈感情时用感叹句，理解由What和How引导的感叹句的语序和感叹句的使用方法。How和What与所修饰的词放在句首，其它部分用陈述句语序。在口语中谓语常省略。
（1）how作状语，修饰形容词，副词或动词
结构：How+形容词/副词＋主语＋谓语
How nice the flowers are ! 花多漂亮啊！
How hard he works ! 他工作的多努力啊！
（2）what作宾语，修饰名词（名词前可有其他定语），单词可数名词前要加不定冠词a（an）.
结构：What a （an）+形容词＋名词＋主语＋谓语
e.g. What a clever girl （she is ）!
她是一个多么聪明的女孩啊！
What delicious food ! 多么好吃的食物啊！
句子的类型可分为简单句、并列句和复合句。
简单句：The Simple Sentence由一个主语（或并列主语）和一个谓语（或并列谓语）构成的句子。
e.g. I get up at six thirty in the morning.
My mother and I often go shopping.
并列句：The Compound Sentence 由并列词and , so , but , or等）把两个或两个以上的简单句连在一起而构成的句子。要掌握并列句的构成及用法。
e.g. I help him and he helps me. 我帮他，他帮我。
This is our first lesson , so I don't know all your names.
这是我们的第一节课，所以我不认识你们。
She likes bread and milk , but she doesn't like eggs at all.
她喜欢吃面包和牛奶，但她一点儿也不喜欢吃鸡蛋。
复合句：The Complex Sentence 由一个主句和一个或一个以上的从句构成的句子。
e.g. If you are ill , you must see the doctor.
如果你病了，一定要去看医生。（状语从句）
I hope he's better tomorrow.
我希望他明天身体更好一些。（宾语从句）
熟练掌握宾语从句的语序及关联词that , if / whether , what , who , which , whose , when , what time , where , how 等的用法，以及宾语从句的时态。
在复合句中作主句的宾语，叫宾语从句。
注意：宾语从句的语序必须是陈述句语序。
e.g. I asked him if he was a student.
宾语从句的时态呼应是：主句的时态是一般现在时，从句可以是任何一个时态。
如果主句的时态是一般过去时，从句必须是过去时态的一种形式。
当表示事实、真理、自然现象时必须用一般现在时。
e.g. The teacher told us that the earth goes around the sun.
老师告诉我们地球围绕太阳转。
请注意防止出现以下错误：
A. They said that they'll leave if Peter stays.
时态错误，应改为：They said that they would leave if Peter stayed.
B. He asked why were you late for school.
语序错误，应改为：He asked why you were late for school .
C. Her brother asked me whose book this was ?
标点错误，问号应该改为句号。
熟练掌握由when , before , after , as soon as , until , because , than , if , so …that等词引导的时间、原因，比较，条件、结果状语从句。
在复合句中修饰主句中的动词，形容词或副词等的从句叫作状语从句。
时间状语从句：
When she reached home , she had a short rest.
当她到家时，她休息了一会儿。
Judy had finished writing the book before she went to Queensland.
朱娣在去昆士兰之前已经写完了那本书。
I went to bed after I finished my article.
我写完文章之后才上床。
As soon as the bell rang the students, stopped talking to each other.
铃声一响，学生们就停止了谈话。
We won't leave until the headteacher comes back.
班主任回来我们才会离开。
原因状语从句：
The children went to the farm , because the farmers needed some help.
孩子们去农场是因为农民们需要帮忙。
比较状语从句：Jim is older than Lucy is.
吉姆比露西大。
条件状语从句：
If it rains tomorrow , we won't hold a sports meeting on the sportsground .
如果明天下雨，我们就不在运动场上开运动会了。
结果状语从句：
The box is so heavy that I can't lift it.
这个箱子太沉以致于我无法抬起来。
目的状语从句：
The headmaster spoke loudly so that all the students could hear what he said.
校长高声讲话为的是全体学生能够听到他所讲的话。
让步状语从句：
Although he is young , he knows a lot of things.
虽然他年龄小，但却认识许多事情。
状语从句的时态要与主句时态相互呼应。但要注意以as soon as , when , until等引导的时间状语从句表示将来的动作时，从句要用一般现在时表示将来。
e.g. He will write to me as soon as he gets to America.
他一到美国就给我写信。
When I see him , I will tell him this good news.
当我见到他时，我将告诉他这个好消息。
We won't leave until we finish our homework .
直到完成作业我们才会离开。
以if引导的条件状语从句假设的是将来的动作，主句用一般将来时，从句用一般现在时。
e.g. He will come to see me if he has time. 如果条件状语从句放在宾语从句中，时态则依照宾语从句的要求而变。
e.g. My mother said she would buy me a book if I studied hard.
我母亲说如果我努力学习，她要给我买一本书。
以because引导的原因状语从句不可能和so一起连用。
e.g. He didn't come to school yesterday because he was ill.
他昨天没来学校，因为他生病了。
注意防止出现以下错误：
A. I'm sure he'll ring you up if he will come back.
从句时态错误，will come应该改为comes.
B. Because he was tired , so he went to bed very early.
中文习惯用"因为……所以……"，但在英语中because不能和so同时使用，应该去掉其中的一个。
