[as引导定语从句的用法]as引导的定语从句

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篇一:[as引导的定语从句]定语从句最新课件

　　关于定语从句课件 大家了解过多少呢？可能很多人都不是很清楚，下面就是小编分享的 定语从句课件范文，一起来看一下吧。
　　定语从句课件篇一
　　一、设计背景
　　1． 初步掌握及运用定语从句，如让学生用定语从句来完成对人物喜欢的人物进行描述，如I like music that I can dance to. She is the only one who’s studying French.等。
　　2． 本课的学习任务就是能初步掌握及运用定语从句，为了使学生顺利地完成教学任务，教师以学生为主体，为学生设计了几个以他们的认知水平出发的符合生活实际的他们感兴趣的一环扣一环的子任务，每个子任务紧紧围绕总任务展开，再深入，在一个一个完成任务的活动中培养学生的能力。
　　二．教学目标
　　（1）语言目标：能用定语从句较自如地描述及谈论人和物。在活动中训练学生的听力，口头表达能力，培养学生的观察，想象和创造力。
　　（2）情感目标：促进同学间积极合作交流，发展同学间的友谊 。
　　2．教学方法 ：多媒体的运用能创设真实的语言情景，学生也很感兴趣，极大地鼓动了学生学习英语的积极性，而且呈现在课堂上能使教学更生活化，也更直观和具体。
　　三、教学方法
　　以学生为主体，用多媒体辅助教学，通过帮助学生理解、归纳、总结、讨论等方式学习定语从句，由于本节课是学生第一次系统学习定语从句，要达到让学生初步掌握定语从句这一目的。
　　四、学法指导、自主学习、合作学习
　　五、教学过程
　　第一环节： 观察以下例句：
　　1.The red pen is broken.
　　2.The pen on the desk is broken.
　　3.The pen that I bought yesterday is broken.
　　导入：通过对定语的理解，导入定语、定语从句的概念，定语：用来修饰名词或代词的词、短语或句子，当修饰词是一个句子时被称为定语从句。通常置于它所修饰的词之后，这种被修饰的词叫做先行词，引导定语从句的关联词为关系代词和关系副词，关系代词在定语从句中可用作主语、宾语、定语等，关系副词在定语从句中只用作状语。
　　例句分析：
　　I like to have friends who are like me.
　　I like to have friends who are different from me.
　　He is the only one who is studying French.
　　Be careful of the person who doesn’t speak and the dog that doesn’t bark.
　　You can’t wake up a person who pretends to sleep.
　　He who can’t get to the Great Wall is not a true man.
　　I like musicians who play different kinds of music.
　　Another that he found very difficult is grammar.
　　The other day, my friends and I talked about the rules that we have in school.
　　Being a professional athlete is the only thing that I have ever wanted to do.
　　I like music that I can sing along with.
　　I like music that has great lyrics.
　　I like music that I can dance to.
　　得出结论1)当先行词是物时
　　a. 关系代词代替先行词在定语从句中作主语时，用which/that引导，且不能省略.b. 关系代词代替先行词在定语从句中作宾语时，用which/that引导，且可以省略.
　　2)当先行词是人时
　　a. 关系代词代替先行词在定语从句中作主语时，用who/that引导，且不能省略.b. 关系代词代替先行词在定语从句中作主语时，用who/that/whom引导，且可以省略.
　　第二环节：在学生对定语从句有了初步的了解后，创设情境，学以致用，让学生分组活动，根据多媒体呈现的情境，有创造性地造句：
　　This is a singer who/that …
　　who is a boy.
　　who is very shy.
　　who writes his own songs.
　　who has a song calledQinghuaci.
　　Who I like best.
　　It’s an animal that/which is very strong.
　　It’s an animal that/which has long nose and big ears.
　　It’s an animal that/which I like very much.
　　第三环节：在学生对一般的规律都把握好以后，把学生的易错点和定语从句的考点呈现在屏幕上，让学生仔细观察并作出总结，该环节设计得很好，很好地训练了学生的观察能力和主动探究的能力，效果较好。
　　仔细观察：你会发现什么？
　　1) I prefershoesthat are cool.
　　2) I likea pizzathat is really delicious.
　　3) I lovesingerswho are beautiful.
　　4) I havea friendwho plays sports.
　　学生观察后得出的结论为：
　　who/that在定语从句中做主语时,谓语动词的单复数应与先行词保持一致。
　　第四环节：小节本堂课的内容
　　什么是定语？
　　什么是定语从句？
　　定语从句的结构是什么？
　　关系词有几重作用？
　　此环节让学生对所学的知识加以升华，并在大脑里形成知识框架，把知识系统化。
　　第五五环节：巩固练习---以检查学生是否真正掌握本堂课的知识，实践证明，学生掌握得很好。
　　第六环节：合作探究
　　留给学生的问题
　　1.如果先行词既有人又有物，用什么关系词？
　　2.如果先行词是时间，用什么关系词？
　　3.如果先行词是地点，用什么关系词？
　　4.关系词whose怎么用？
　　通过此环节给学生留下思维拓展的空间，也为以后的学习做好铺垫，体现学习的延续性。
　　课堂小结：通过例子让学生总结定语从句的规律和特点，同时总结不同关系词的用法。在这节课中，学生对定语从句这一语法项目有了不同程度的巩固和深化。
　　六、课后反思：
　　提倡任务型教学活动，是为了让学生们在教师的指导下，通过感知，体验，实践，参与合作等方式，力求最大限度地把语言能力的培养落实到教学过程的每一个环节，逐步实现预定的任务目标并感受成功。我在这堂课的设计里要求自己新颖别致，突出故事的完整性，要有一气呵成的感觉，重点落实，定语从句自始至终贯穿每个环节，活而不乱，生动有趣，贴近生活，气氛活跃。能发挥学生们的主体互动性和能动性，在完成任务的过程中能积极参与。课后感觉任务型教学有所体现，学生们积极性高，参与面广，训练量较大，能初步运用定语从句。
　　但在教学过程中，我意识到：有个别学生基础太差，虽在课堂中他们也积极参与，但有时很盲目，甚至不知道老师和同学们在进行什么内容，从他们的目光和神态中，我了解到他们对知识的渴求，我暗自告诉自己，一定要帮助他们，这很难，但一定要坚持，决不放弃。
　　定语从句课件篇二
　　Ⅰ. 定义
　　定语从句，起形容词的作用，在句中常用来修饰名词或代词。被修饰的词称为先行词,引导定语从句的词称为关系词, 关系词的作用一是放在先行词与定语从句中间起引导作用;二是在意义上代替先行词,并在从句中充当一个成分。其中关系代词：who, whom, whose, which, that, as；关系副词：when, where, why。
　　eg. She is the girl who sings best of all.
　　The pen which my uncle gave me is missing.
　　He lives in a house whose windows face south.
　　The factory where my father works is in the east of the city.
　　Perhaps the day will come when people will be able to breathe clean air in cities.
　　Ⅱ. 关系代词
　　1.先行词是人，作主语，关系代词用who, that
　　eg. He is a man（ ） never leaves today’s work till tomorrow.
　　The boy ( ) is standing there is my cousin.
　　2. 先行词是人，作宾语，关系代词用 whom, who, that,
　　eg. Here is the man ( ) you’ve been expecting to meet.
　　The man ( ) you met yesterday is Mr. Smith.
　　3. 先行词是物，作主语，关系代词用which, that
　　eg . The train （ ） has just left is for Guangzhou.
　　Children like to read books ( ) have wonderful pictures.
　　4. 先行词是物，作宾语，关系代词用which, that,或省略
　　eg. The book ( ) you borrowed yesterday is really interesting.
　　The pen ( ) my uncle gave me is missing.
　　5. 先行词是人、物，作定语，关系代词用whose
　　eg. He is the professor ( ) name was Jackson.
　　China, （ ） population is the largest in the world, is developing very fast.
　　Ⅲ. 关系副词
　　1.先行词是表示时间的名词，在定从中作时间状语，关系代词用when
　　eg. I can’t remember the date ( ) he went abroad.
　　I’ll never forget the day ( ) I joined the army.
　　2.先行词是表示地点的名词，在定从中作地点状语，关系代词用where; 其中注意表示抽象概念的地点名词，如，situation、stage、degree、point等表示方面或程度时，也需用where
　　eg. This is the village （ ） Uncle Wang once lived.
　　They have reached the point ( ) they have to separate with each other.
　　He’s got himself into a dangerous situation ( ) he is likely to lose control over the plane.
　　3. 先行词是reason，在定从中作原因状语，关系代词用why
　　eg. I don’t know the reason ( ) he was late.
　　None of us know the reason ( ) Tom was absent from the meeting.
　　4.引导定语从句的关系副词也可以用“适当介词 + which”来代替。
　　eg. October 1, 1949 was the day when （ = ） the People’s Republic of China was founded.
　　This is the factory where（= ） we worked a year ago.
　　I don’t believe the reason why (= ) he was late for school.
　　Ⅳ. 关系代词that & which的区别:
　　⒈ 只用that的情况
　　① 先行词为all, everything, anything, nothing, little, much等不定代词时。
　　eg. There is nothing ( ) can prevent him from doing it.
　　② 先行词被any, only, few, no, very, little 等修饰时。
　　eg. This is the very book ( ) I’m looking for.
　　③ 先行词被形容词最高级或序数词修饰时。
　　eg. The first place ( ) they visited in Guilin was Elephant Trunk Hill.
　　This is the best film ( ) I have ever seen.
　　④ 先行词既有人又有物时。
　　eg. He talked about things and persons ( ) they remembered in the school.
　　⑤ 先行词被the only, the very修饰时。
　　eg. Mr. Smith is the only foreigner ( ) he knows.
　　⑥ 句中已有who或which,为了避免重复时。
　　eg. Who is the man ( ) is standing beside Tom?
　　⒉ 不能用 that的情况：
　　① 引导非限制性定语从句；
　　eg. He had failed in the maths exam , ( ) made his father very angry.
　　② 介词 + 关系代词。
　　eg. This is the room in（ ） my father lived last year.
　　Ⅴ. as引导定语从句时的用法(as 相当于that & which)
　　① as引导限制性定语从句通常用于the same … as, such … as结构中。
　　eg. This is the same book ( ) I lent you.
　　Such machines ( ) are used in our workshop are made in China.
　　② as引导非限制性定语从句既可放在主句之前，也可放在主句之后，位置灵活，用来修饰整个句子。通常用下列句型：as is known to all, as is said, as is reported, as is announced, as we all know, as I expect 等。
　　eg. ( ) I expected, he got the first place again in this mid-term examination.
　　Tai·wan, ( ) we all know, belongs to China.
　　Ⅵ. 限制性定语从句和非限制性定语从句的主要区别:
　　限制性定语从句: 一般紧跟在先行词后面,不用逗号把从句与先行词分隔开来。使先行词的意思十分明确,成为特定的人或物,是句子中不可缺少的成分,少了它句子就会失去意义不能成立,或意思不清楚,不能说明问题。通常译为定语。
　　非限制性定语从句: 通常由逗号与句子其他成分隔开。只是对先行词作进一步的说明,没有它句子仍能成立,意思仍很清楚。通常译为并列的句子。
　　eg. I was the only person in our office （ ） was invited.（去掉定语从句，意思就不完整）
　　Tom’s father, （ ） is over sixty, still works hard day and night.（整个句子可分成两句来翻译）
　　Ⅶ. 分隔定语从句
　　即先行词与关系代词、副词之间被介词短语，同位语，谓语等分隔开来。
　　此种定语从句，在选择关系词时，要注意找准先行词。
　　eg. There is an expression in his eyes （ ）I can’t understand.
　　I was the only person in my office ( ) was invited to the important ball.
　　I suggest you choose someone I think ( ) is very kind and friendly.
　　选择填空：
　　1. It was April 29,2011 Prince William and Kate Middleton walked into the palace hall of the wedding ceremony.
　　A. that B. when C. since D. before
　　2.)Gutter oil is illegally recycled cooking oil, contains chemicals that are harmful to the human body and can even cause cancer.
　　A. it B. which C. where D. that
　　3. Between the two parts of the concert is an interval, the audience can buy ice-cream.
　　A. when B. where C. that D. which
　　4. The old town has narrow streets and small houses are built close to each other.
　　A. they B. where C. what D. that
　　5. Whatever is left over may be put into the refrigerator, it will keep for two or three weeks.
　　A. when B. which C. where D. while
　　6. English is a language shared by several diverse cultures, each of ------- uses it somewhat differently.
　　A. which B. what C. them D. those
　　7. A bank is the place they lend you an umbrella in fair weather and ask for it back when it begins to rain.
　　A. when B. that C. where D. there
　　8. She has a gift for creating an atmosphere for her students ------ allows them to communicate freely with each other.
　　A. which B. where C. what D. who
　　9 Ted came for the weekend wearing only some shorts and a T-shirt, ------ is a stupid thing to do in such weather.
　　A. this B. that C. what D. which
　　10. She showed the visitors around the museum, the construction ------ had taken more than three years.
　　A. for which B. with which C. of which D. to which
　　11. The school shop, customers are mainly students, is closed for the holidays.
　　A. which B. whose C. when D. where
　　12.He was so pleased with all we had done for him he wrote us a letter to praise for it.
　　A. what; what B. what; that C. that; what D. that; that
　　13.The moon travels round the earth once every month, is known to everybody.
　　A. it B. as C. that D. what
　　14. is often the case with elder people, my grandma, talked about my new hairstyle for at least 50 minutes nonstop.
　　A. That B. Which C. As D. It
　　15.After graduating from high school, you will reach a point in your life ------- you need to decide what to do.
　　A. that B. what C. which D. where
　　16.The novel was completed in 1978, the economic system has seen great changes.
　　A. when B. during which C. since thenD. since when
　　17.Books bring us into the presence of the greatest minds have ever lived.
　　A. which B. who C.不填 D. that
　　18.The world is made up of matter.
　　A. in that we live B. on which we live
　　C. where we live in D. we live in
　　19.David is such a good boy all the teachers like.
　　A. that B. who C. as D. whom
　　20.Is this the reason at the meeting for his carelessness in his work?
　　A. he explained B. what he explained
　　C. how he explained D. why he explained
　　21.He was very angry and I can still remember the way he spoke to me.
　　A. how B. that C. what D. which
　　22.That’s the new machine parts are too small to be seen.
　　A. that B. which C. whose D. what
　　23.I’ve become good friends with several of the students in my school ------- I met in the English speech contest last year.
　　A. who B. where C. when D. which

篇二:[as引导的定语从句]用as造句定语从句

　　as在定语从句中是什么意思？怎么用？as定语从句例句有哪些呢？
　　定语从句as造句的句子
　　(1) As is known to all, China is a developing country.
　　(2) He is from the south, as we can see from his accent.
　　(3) John, as you know, is a famous writer.
　　(4) As a student，I am supposed to work hard.
　　定语从句中as的用法
　　引导状语从句的连词as可以用作关系代词，引导定语从句，因而被称作准关系代词。
　　1.准关系代词as引导限制定语从句，用于以下3个结构中，as在从句中作主语、宾语或表语：
　　a.so / such…as
　　Such people as were mentioned by him were honest. (as作主语)
　　I’ve never seen such a clever man as he is. (as作表语)
　　Last term our maths teacher set so difficult an (= such a difficult) examination problem as none of us worked out.
　　b.the same…as
　　Modern statemen are often faced with the same problem as defeated the ancient Romans. (as 作宾语)
　　I like the same book as you do. (as 作宾语)
　　c.as…as
　　As many children as came were given some cakes. (as 作主语)
　　He is as diligent a man as ever lived. (as 作主语)
　　补充：
　　a.such…as 与 such…that的区别
　　such…as 引导定语从句；such…that引导结果状语从句。
　　They talked in such simple English as children could understand.
　　他们用孩子们能听懂的简单的英语交谈。
　　They talked in such simple English that children could understand it.
　　他们用十分简单的英语交谈，连孩子们都能听懂。
　　I will provide you with such things as you may need.
　　我要供给你一些你可以用得着的东西。
　　He shut the window with such a force that the glass broke.
　　他如此用力地关门，结果玻璃碎了。
　　b.the same…as与the same…that的区别：
　　the same…as指两物相似，the same..描述的是同一物。
　　This is the same bag as I lost yesterday.
　　这个书包和我昨天丢失的（书包）相似。（相似物）
　　This is the same bag that I lost yesterday.
　　这正是我昨天丢失的那个书包。（同一物）
　　2.准关系代词as引导非限制定语从句。
　　a.as引导非限制性定语从句，只代表主语或主句的一部分所表达的意思(不能指代某个名词或代词)，可以放在主句前，后或中间，在从句中作主语或宾语、例如：
　　As is known to all, he is the best student in our class. (as指代整个句子，作主语，置于句首)
　　He opposed the idea, as could be expected. (as 指代整个句子，作主语，置于句末)
　　As we all know, he studies very hard. (as 指代整个句子，作宾语，置于句首)
　　Tai is, as you know, an inseparable part of China. (as指代整个句子，作宾语，置于句中)
　　常用的这类句式有：
　　as is said above 综上所述 - as is known to all 众所周知
　　as is often the case 通常如此 - as is reported in the newspaper 如报纸所报导的
　　b.主句具有否定意义，as引导的定语从句位于主句之后时，as指代得主句不包括否定意义，并可用but取代。例如：
　　Whales are now fish, as some people think / but some people think they are.
　　I am no orator, as Brutus is.我不善言词,而勃鲁特斯却是个雄辩家.
　　Spiders are notinsects,as many people think, nor even near1y related to them.
　　蜘蛛不是昆虫,尽管许多人认为它是昆虫,它甚至与昆虫几乎没有关系.
　　但as引导的定语从句谓语主句前时，as指代的主句仍包括否定意义。
　　As has been said above, grammar is not a set of dead rules.
　　正如前面所说的，语法不是一套死条纹。
　　3.在非限制性定语从句中，which和as引导定语从句时的区别：
　　a.which引导的从句不能放在主句前，而as引导的从句则既可以放在主句前，也可以放在主句后。
　　b.用能做关系代词，as和which都可以指代一个句子，但as有“正如”、“就像”之意，which则没有此含义。
　　He is a foreigner, as I know from his accent. (as指代一个句子，意为“正如”、“就像”)
　　He has to work on Sunday, which he doesn’t like. (which指代一个句子，没有“正如”、“就像”)
　　c.当从句的谓语动词是be或相当于联系动词的seem, become等时，可用as或which作主语。但当从句的谓语是行为动词时，只能用which作主语。
　　4.as 可用作连词，引导状语从句，构成省略形式“as + 过去分词”这一特殊结构，译成汉语时作用如定语。例如：
　　The bridge as shown in the picture is really wonderful. (as shown = as it is shown 可译为“图中的桥”)
　　See the answers as given at the end of this book. (as given = as it is shown 可译为“书后给出的答案”)
　　English as spoken is Australia is slightly different from British English.
　　(as spoken = as it is spoken 可译为“在澳大利亚讲得英语”)
　　请看下列的“as + 过去分词”结构用于修饰前面的名词：
　　The study as described in the article… 如文章中描述的那种学习
　　The program as conducted by… 由…指挥的（指导的）节目
　　The art as applied to medicine… 应用于医学的艺术
　　The products as seen on TV…电视上看到得产品

篇三:[as引导的定语从句]定语从句as的用法课件

　　(一)、 as作连词的用法:
　　as作连词，常用来连接主句和状语从句。
　　1.引导时间状语从句，作“当...的时候”解，有“随着...”之意，与while意义相近，强调两个动作同时发生;或某事一发生，另一事立即发生。eg：
　　He shouted aloud as her ran along.他一边往前跑，一边高声地呼喊。
　　I was startled as he opened the door.他一开门，我吓了一跳。
　　as作连词，相当于when。eg;
　　As a little boy (When he was a little boy)he began to learn to play piano.他小时候就开始学弹钢琴。
　　2.引导原因状语从句，作“因为，由于”解，与because的用法相近。eg;
　　I must stop writing now，as I have rather a lot of work to do.我必须停笔了，因为我还有许多工作要做。
　　3.引导方式状语从句或比较状语从句，作“正如，(如)像”解。例eg：
　　As in your country，we grow wheat in the north and rice in the south.正如(像)你们国家一样，我们在北方种小麦，在南方种大米。(方式状语从句)
　　When at Rome，do as Romans do.入乡随俗。(方式状语从句)
　　4.引导让步状语从句，作“虽然，尽管”解。这时从句常用倒装语序，即把从句中的表语、状语或动词原形放在as之前。eg;
　　Strange as it may seem，it is true.尽管这事看上去很奇怪，但却是真的。
　　Try as he might，Tom could not get out of the difficulties.不管怎样努力，汤姆还是摆脱不了困境。
　　1. 作“在-------期间，当----的时候”引导时间状语从句.注意与 when、 while的用法区别。
　　时间状语从句：as的用法
　　1.某事一发生，另一事立即发生
　　As the sun rose the frog dispersed 太阳一出来雾就消散。
　　They strolled into the garden as the music ceased. 音乐声一停，他们就走进花园。
　　2.在某事发生的过程中另一事发生
　　I heard the murmur of their voices as I crossed the hall.
　　我走过大厅的时候听到他们在嘀咕什么。(两个动作都是一般时态)
　　Just as he was speaking there was a loud explosion.
　　正当他在说话的时候，一声巨响。(从句用进行时态)
　　3. 两个动作同时发生
　　He smiled as he passed. 他路过的时候笑了一下。
　　As she sang, the tears ran down her cheeks. 她一边唱歌，眼泪一边从脸颊淌下。
　　Helen heard the story as she washed. 海伦一边洗衣服一边听故事。
　　He saw that she was smiling as she read. 他看到她一边看着书一边笑。
　　(两个都是延续性动作)
　　We get wiser as we get older. 我们随着年龄的增长而变得聪明起来。
　　(随着时间的变化而变化)
　　①下列情形时,只用as, 而不用when或while。
　　1) 用于表示同一个人的两种动作交替进行,指一边----一边. 如:
　　The girl sings as she goes to school.
　　He looked behind occasionally as he went forward in the forest.
　　2)表示两个同步发生的动作或行为,意思是随着-----的发展.如:
　　As time went on / by, she became more and more beautiful .
　　As children get older, they become more and more interested in everything.
　　3)表示两个短暂行为或事情几乎同时发生.如:
　　I watched her as she read the book.
　　I thought of it just as you opened your mouth.
　　Just as the flying worm hit her face, she gave a loud cry.
　　4)接在名词后面表示某一个年龄段时.如:
　　As a young man, he was active in sports.
　　②when作"当……的时候"解,可以指较短的(一点)时间,也可指一段时间。如:
　　When I was at college, I could speak several foreign languages. When the clock struck twelve, I had slept for 2hours.
　　③while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时发生。如:Work while you work. Play while you play.
　　2. As =Since 作"既然"、"由于"解,引导原因状语从句,常用来表示已为人们所知或显而易见的原因或理由。如:
　　As he’s been ill for ages, I will help him.
　　As / Since you"re not feeling well, you may stay at home.
　　As he wasn"t ready , we went without him.
　　3.As =in the way that作"像"、"按照……的方式"解,引导方式状语从句。如:
　　Do as I told you.
　　Remember, you must do everything as I do.
　　4. 用于as--- as或not / so/ as ---- as中, 前一个as是副词, 后一个as是连词, 引导比较状语从句。如:
　　They helped the old as much as possible.
　　I don"t speak English so/ as well as she does.
　　5. 表示虽然, 尽管 等, 引导让步状语从句, 常用倒装语序, 模式为:
　　adj. /adv. / n.+as +主语+谓语+主句。如:
　　Young as he is, he knows much.
　　Tired as they were, they walked on.
　　6. 表示也------一样。
　　S he is a doctor, as was her husband.
　　(二)、 as作关系代词,引导定语从句,表示正如,这一点.如:
　　1. 引导限制性定语从句，用在“such...as”, “the same...as”，“as...as”等结构中，常译作“像...一样的人(或物)”，“凡是...的人(或物)”。
　　eg： He wished to be such a man as Lei Feng was.他曾希望做一个像雷锋那样的人。
　　My hometown is no longer the same as it was.我的家乡再也不像过去一样了。
　　2.引导非限制性定语从句，用来指代它前面的整个句子(即先行句)，意思是“这一点”。这个分句可以位于句首、句中或句末。
　　eg：As is well known，oceans cover more than 70% of the earth.
　　我们知道，海洋占地球面积的百分之七十以上。
　　He is very careful, as we all know.
　　As is well-known, belongs to China.
　　另外,当先行词被the same, such等词修饰时,常用as来引导定语从句。如:
　　Such a clever girl as she can learn anything quickly.
　　I was reading the same book as he bought yesterday.
　　(三)、as作介词的用法.
　　1. 作“如，像”解,表示好像。如:He dressed as a policeman.
　　They got united as one man.他们团结得像一个人一样。
　　2. 作“充当，作为”解,表示作为, 当作。如：I found a job as a guide.
　　As a writer，he was famous.作为作家，他是很有名的。
　　3.当某人是某身份时。如：As a child , she was sent to abroad.
　　4.as引导的介词短语大多用作状语,as译为"作为";少数情况可引起宾语补足语。如:
　　As a Party member, I"ll take the lead in everything. (状语)
　　She works as a model. (状语)
　　She has me as one of her best friends.(引起宾语补足语)
　　(四)、作副词的用法
　　as作副词，表示程度，意为“同样地”。在“as...as...”，“not as...as...”结构中的第一个as是副词，作“和/与...(不)一样”解。
　　e.g. Jack is as tall as his father.杰克和他的父亲一样高。
　　He doesn"t speak English as/so fluently as you.他的英语说得不如你流利
　　1 表示与------等同。
　　如：This dress is twice as expensive as that one.
　　2 像，如等。
　　如：As before, he remained unmoved.
　　五)含as的固定词组的用法
　　1. as soon as作“一…就”解，引导时间状语从句。
　　eg：As soon as I get to Beijing，I"ll write to you.我一到北京，就给你写信。
　　2.as/so long as作“只要”解，
　　e.g. As/So long as you study hard，you"ll make progress.只要你努力，你就会取得进步。
　　2. as if/though常用来引导方式状语从句，作“好像，仿佛”解。如果从句中讲的是非真实情况，则用虚拟语气。
　　e.g. She loves the child as if/though he were her own.
　　她爱这个孩子如同爱自己的孩子。
　　3. As if/though也可用来引导表语从句，常用在“It appears/looks/seems...+as if/though”句型结构中。
　　e.g. It appears as if/though it is going to clear up.看起来天要晴了。
　　It seems as if/though he knew nothing about it.他好像对此事一无所知。4.as to作“关于，至于”解。
　　e.g. There is no doubt as to his honesty.他的诚实是无可置疑的。
　　5.as much/many as作“多达...”，“达到...之多”解。
　　e.g：He can earn as much as 5000 dollars a month.他每月能挣5000美元。
　　6.so/as far as I know作“就我所知”解，在句中作插入语。
　　eg： As/So far as I know，he will come here next Monday.
　　据我所知，他将于下星期一到这里来。
　　7.as a result，as a result of表示“由于...的结果”。
　　e.g. She died as a direct result of the accident.她的死是那次事故的直接结果。
　　8，as well为“也，还”之意。
　　e.g. Come early，and bring your brother as well.早点来，把你的弟弟也带来。
　　9.so as to，so...as to若跟动词原形，表示目的或结果。
　　eg：He studied hard so as to pass the exam.他努力学习以便通过考试。(表示目的)

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