as的习题
As 用法专练
is generally believed that teaching is ____ it is a science.
A. much as an art as
B. as much an art as
art as much as much as an art
2. _____ I admire David as a poet,I don’t like him as a man. if only
C. As much as
3. ____ ,he talks a lot about his favourite singers after class. quiet student as he may be student as he may be as he may be a student he may be a quiet student wonder why you don’t do it as ____ and it’s the third time you have done so.
you B. be told
C. told to
D. you told
5.( 1) ___I explain on the phone,your request will be considered at the next meeting.
(2)____ I explain on the phone is that your request will be
considered at the next meeting.
A. What
D. As
6.(1)That is ____ problem____can’t be worked out by anyof us .
(2)That is ____problem____none of us can work it out.
such difficult , that difficult
a ,that
a difficult, as so difficult ,as
were not so many jobs available ____ were asked for.
A. that
B. which
C. what
D. as
time went on,Einstine’theory_____ right.
A. With, proved B As, be
proved
, be proved D. As, proved
will surely finish the job on time ____ he’s left to do it
in his own way.
if if
long as D. so that
generally agree that the earth’s climate will warm up over the next 50 to 100
years____it has warmed in the 20,000 years since Ice Age.
long as
much as
long as D.
as well as
come to my party,and bring your sister____.
good a whole well
’s useless trying to argue with the sort of might____ go and stand upon the beach
and argue with the sea.
A as well
B also if D. as well as
13.(1) We all passed the exam,but ___ him, he alone failed.
(2) ____ running, learning English needs will.
A. As/as with
B. As/as to as for as if
thought things would get better, but ___ it is they were gettting worse.
A before
the gifts must be mailed immediately____ in time for Christmas.
A in order to have received order to received
as to be received as to be receiving
16(1)Look! The clouds are gathering. It looks as if it ______ (rain).
(2)If you put a chopstick into water , it looks as if it
_____(break)
Answers:
1-4 B D B C 5. DA 7-10 D D C B 11-12 C A 14-15 C C
is going to rain 2) were broken。
定语从句例句及练习题
定语从句例句及练习题定语从句例句及练习题由as，which 引导的`非限定性定语从句，as和which可代整个主句，相当于and this或and that.As一般放在句首，which在句中。
例如：As we know， smoking is harmful to ones health. 如我们所知，吸烟有害健康。
The sun heats the earth， which is very important to us. 太阳使地球暖起来，这对我们人类很重要。
典型例题1）Alice received an invitation from her boss， ___came as a surprise.A. itB. thatC. whichD. he答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后句成为句子，两个独立的句子不能单以逗号连接。
况且选he 句意不通。
2）The weather turned out to be very good， ___ was more than we could expect.A. whatB. whichC. thatD. it答案B.which可代替句子，用于非限定性定语从句，而what不可。
That 不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在语法上行不通。
3）It rained hard yesterday， ____ prevented me from going to the parkA. thatB. whichC. asD. it答案B. as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。
但不同之处主要有两点：【定语从句例句及练习题】。
4AD_AS模型习题
AD-AS模型一、名词解释题1.滞胀是指经济处于低于充分就业均衡和价格水平较高即生产停滞和通货膨胀同时并存的现象。
2.总需求3.总供给二、判断题：1.在古典模型中.需求并不影响就业水平和实际工资率。
T2.在古典模型中.产出是由供给决定的.需求只在于适应产出的变化。
T3.凯恩斯认为.工人更容易接受由于价格水平上涨而引起的实际工资的减少.不易于接受由于名义工资的下降而引起的实际工资的减少。
T4.凯恩斯认为.工资在上升或下降两个方向都是富有弹性。
F5.若其他情况不变且AS为向上倾斜.则政府开支的增加最终将导致公众储蓄量的上升。
T6.凯恩斯的总供给曲线由三部分组成：水平部分、向上倾斜部分以及几乎垂直的部分。
F7.使IS或LM曲线发生移动的任何因素都将改变总需求。
T8.总需求曲线和总供给曲线的交点决定了总产出水平和利率水平。
F9.如果某人产生“货币幻觉”.那么他关心的是他工资(或财产)的实物价值.而不关心其货币形式的变动。
F10.在短期.工资基本上是给定的.这支持了凯恩斯主义关于工资刚性的论点；而长期.工资是完全可变得.这又支持了古典学派的观点。
T11.根据凯恩斯主义的经济理论.货币供应量的增加会导致经济的扩张。
T12.劳动力市场的均衡决定了短期产出的水平。
T13.如果经济处在持续的上升时期.那么短期供给曲线将由于工资的上涨而向上移动。
T14.总供求模型是微观供求模型的简单放大。
F15.主要地是由于对劳动市场的不同理解.使得古典经济学与凯恩斯主义对总供给曲线的形状出现了不同的看法。
T三、单项选择题1.价格水平上升时.会（B）。
A.减少实际货币供给并使LM曲线右移B.减少实际货币供给并使LM曲线左移C.增加实际货币供给并使LM右移D.增加实际货币供给并使LM左移2.下列哪一观点是不正确的？（D）A.当价格水平的上升幅度大于名义货币供给的增长时.实际货币供给减少B.当名义货币供给的增长大于价格水平的上升时.实际货币供给增加C.在其他条件不变的情况下.价格水平上升.实际货币供给减少D.在其他条件不变时.价格水平下降.实际货币供给减少3.总需求曲线向右方倾斜是由于（D）。
when while as 练习题
when while as 练习题When, While, As 练习题When it comes to learning English grammar, understanding and correctly using different tenses is crucial. In particular, the correct usage of "when," "while," and "as" can sometimes be confusing for English language learners. In this article, we will explore the usage of these three words and provide practice exercises to help solidify your understanding. Let's dive in!1. When:"When" is typically used to refer to a specific point or period in time. It can introduce a subordinate clause or be used as a conjunction. Here are some common situations when "when" is used:a) Talking about an action that happened in the past:- I was studying in the library when my friend called me.- When I visited Paris, I fell in love with the city.b) Describing habitual actions in the past:- When I was younger, I used to play soccer every weekend.c) Referring to a future event:- I will go to the cinema when the movie starts.- We can have dinner together when you finish work.2. While:"While" is typically used to indicate a simultaneous action or event. It can introduce a subordinate clause or be used as a conjunction. Here are some common situations when "while" is used:a) Describing actions happening at the same time:- While I was cooking dinner, my roommate was watching TV.- She listened to music while jogging in the park.b) Indicating contrast or a difference in actions:- While some people enjoy spicy food, others prefer mild flavors.- He works hard, while his brother prefers to relax.c) Referring to a future event that interrupts an ongoing action:- I will call you while I am on my way to the airport.3. As:"As" is typically used to indicate a cause or reason, and it can also introduce a subordinate clause or be used as a conjunction. Here are some common situations when "as" is used:a) Explaining the reason for a specific action:- As it was raining heavily, we decided to stay indoors.- He wore a coat as it was cold outside.b) Indicating a similarity or comparison:- She sings as beautifully as a professional singer.- He can play the guitar as skillfully as his teacher.c) Introducing a subordinate clause:- As I was leaving, I saw him arriving.Practice Exercises:Now, let's put your knowledge into practice with the following exercises. Fill in the blanks with the appropriate word (when, while, or as).1. _______ I was walking to school, I saw a rainbow in the sky.2. John likes to listen to music _______ he is studying.3. _______ I was studying for my exam, my cat kept jumping on the table.4. She applied for the job _______ she wanted a challenging career.5. _______ I was waiting for the bus, it started to rain.Answers:1. While2. While3. As4. As5. WhenConclusion:Understanding the correct usage of "when," "while," and "as" is essential for effectively communicating in English. By practicing various examples and exercises, you can improve your grasp of these words and confidently use them in your writing and speaking. Keep practicing and expanding your knowledge of English grammar, and soon you'll master these concepts. Happy learning!。
as 用法归纳和练习测试 (学案)
a s用法归纳和练习题一、as作副词，表示程度，意为“同样地”。
在“as．．．as．．．”，“not as/so．．．as．．．结构中的第一个as是副词，作“和／与．．．(不)一样”解。
Jackisastallashisfather．Tryashemight，Tomcouldnotgetoutofthedifficulties．不管怎样努力，汤姆还是摆脱不了困境。
Childasheis,heknowsalot.Much?as?I?like?you,I?will?not?marry?you.我虽然很喜欢你，可是不愿与你结婚。
四、as作关系代词。
1．引导限制性定语从句，用在“such．．．as”,“thesame．．．as”，“as．．．as”“so…as”等结构中，常译作“像．．．一样的人(或物)”，“凡是．．．的人(或物)”。
例eg：HewishedtobesuchamanasLeiFengwas．他曾希望做一个像雷锋那样的人。
Myhometownisnolongerthesameasitwas．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)。
这个分句可以位于句首、句中或句末。
Asiswellknown，oceanscovermorethan70％oftheearth．We?have?found?such?materials?as?are?used?in?their?factory.五、含as的固定词组的用法Shediedasadirectresultoftheaccident．她的死是那次事故的直接结果。
8，aswell为“也，还”之意。
as?well?as,并列连词,连接并列成分. eg：Comeearly，andbringyourbrotheraswell．早点来，把你的弟弟也带来。
He?can?speak?English?as?well?as?French.他会说英语和法语9．soasto，so．．．asto若跟动词原形，表示目的或结果。
小学英语语法As的用法练习题(含答案)
小学英语语法As的用法练习题（含答案）巩固练习11. She had a tense expression on her face， ________she were expecting trouble.A. even thoughB. even asC. as thoughD. now that2. A good many proposals were raised by the delegates，________was to be expected.A. thatB. whatC. soD. as3. ________might be expected， the response to the question was very mixed. A. As B. That C. It D. What4. Americans eat ________as they actually need every day.A. twice as much proteinB. twice protein as muchC. twice protein as muchD. protein as twice much5. The trumpet player was certainly loud. But I wasn‘t bothered by his loudness ________by his lack of talent.A. thanB. more thanC. asD. so much as6. Studies show that the things that contribute most to a sense of happiness cannot be bought， ________a good family life，friendship and work satisfaction.A. as forB. in view ofC. in case ofD. such as7. ________he works hard，I don’t mind when he finishes the experiment. A. As soon as B. So far as C. As well as D. As long as8. ________the danger from enemy action， people had to copewith a severe shortage of food， clothing， fuel and almost everything.A. As long asB. As far asC. As soon asD. As well asKey： 1-5 CDAAD 6-8 DDD巩固练习21. It is generally believed that teaching is ______it is a science.A. an art much asB. much an art asC. as an art much asD. as much an art as2. She doesn‘t speak ______her friend， but her written work is excellent.A. as well asB. so often asC. so much asD. as good as3. The piano in the other shop will be ______， but ______.A. cheaper； not as betterB. more cheap； not as betterC. cheaper； not as goodD. more cheap； not as good4. After supper she would sit down by the fire， sometimes for ______an hour， thinking of her young and happy days.A. as long asB. as soon asC. as much asD. as many as5. With the help of the German experts， the factory produced ______ cars in 1993 as the year before.A. as twice manyB. as many as twiceC. as twice as manyD. twice as many6. After the new technique was introduced， the factory produced______ tractors in 1988 as the year before.A. as twice manyB. as many twiceC. twice as manyD. twice many as7. ______，he doesn’t study well.A. As he is cleverB. He is as cleverC. Clever as he isD. As clever he is8. ______， he was unable to make much progress.A. Hard as he tryB. Hard as he triedC. As he tried hardD. He tried hard9. Tom kept quiet about the accident ________ lose his job.A. so not as toB. so as not toC. so as to notD. not so as to10. When a pencil is partly in a glass of water， it looks as if it ______.A. breaksB. has brokenC. were brokenD. had been broken11. ________ is known to everybody， the moon travels round the earth once every month.A. ItB. AsC. ThatD. What12. ________ is known to all， China will be an ________ and powerful country in 20 or 30 years‘ time.A. That； advancingB. This； advancedC. As； advancedD. It； advancing13. He doesn’t believe ________things ________ you do.A. the same； asB. the same； withC. as same； asD. as same；with14. ________ is mentioned above， the number of the students in senior high schools is increasing.A. WhichB. AsC. ThatD. ItKey： 1-5 DACAD 6-10 CCBBC 11-14 BCAB。
asa 证明练习题
asa 证明练习题
Asa证明练习题
（正文）
题目一：证明as|a|≥0
解答：
根据绝对值的定义，当a≥0时，|a|=a，所以as|a|=as|a|≥0
当a<0时，|a|=-a，所以as|a|=as(-a)=as*(-1)*a=as*(-a)≥0
综上所述，对于任意实数a，都有as|a|≥0成立，证毕。
题目二：证明as^2+a^2≥0
解答：
根据二次平方差公式，as^2+a^2=(s^2+1)a^2，由于s^2+1≥0，所以as^2+a^2≥0
综上所述，对于任意实数a和任意实数s，都有as^2+a^2≥0成立，证毕。
题目三：证明as^2+2as+a^2≥0
解答：
根据完全平方式，as^2+2as+a^2=(s+a)^2，由于完全平方式的定义可知，任意实数的平方均不小于0，所以(s+a)^2≥0
综上所述，对于任意实数a和任意实数s，都有as^2+2as+a^2≥0成立，证毕。
题目四：证明as^3+3as^2+3as+a≥0
解答：
根据立方和公式，as^3+3as^2+3as+a=(s+a)^3，由于立方和公式的定
义可知，任意实数的立方均不小于0，所以(s+a)^3≥0
综上所述，对于任意实数a和任意实数s，都有
as^3+3as^2+3as+a≥0成立，证毕。
题目五：证明as^n+a^n≥0，其中n为正整数
解答：
当n为正整数时，根据幂和公式，as^n+a^n=(s^n+1)a^n，由于
s^n+1≥0，所以as^n+a^n≥0
综上所述，对于任意实数a和任意正整数n，都有as^n+a^n≥0成立，证毕。
（文章结束）。
as as的练习题
as as的练习题近年来，随着人们健康意识的不断提升，越来越多的人开始重视身体锻炼和运动。
而as as结构作为英语比较级的一种特殊形式，常常用于形容词和副词的比较，用来表示两个相似程度相近的事物之间的比较关系。
它的形式为“as + 形容词/副词原级+ as”。
本篇文章将利用asas结构提供一些练习题，来帮助读者更好地理解和运用这一语法结构。
1. 词汇能力请根据括号里的提示词，使用as as结构完成下列句子。
a) My sister is ________ (tall) me.b) The weather today is ________ (hot) yesterday.c) She studies ________ (hard) her classmates.d) Tom doesn't eat ________ (much) his friend.e) This book is ________ (interesting) that one.2. 句子能力请将以下句子改为as as结构的形式。
a) Maria runs faster than Joe.b) Jim sings better than Tina.c) This restaurant is more expensive than the other one.d) She learns English more quickly than her brother.e) Bob speaks louder than his sister.3. 阅读理解阅读以下短文，然后根据短文内容回答问题。
Li Ming is a student in a middle school. He is very diligent and always gets good grades. Today, the teacher announced that the final exam is coming soon. Li Ming is as excited as his classmates, but he is also a bit nervous.Li Ming is not as tall as his best friend, Tom. However, he is as strong as Tom. They often compete in sports and have a lot of fun. Li Ming is not as outgoing as Tom, but he is as friendly as his other classmates. Li Ming is not as talkative as Tom, but he is as intelligent as Tom. They often help each other with homework.Li Ming is not as rich as some of his classmates, but he is as happy as anyone else. He believes that money is not the most important thing in life. Li Ming is not as good at drawing as his sister, but he is as talented as her in playing the piano.根据短文内容回答以下问题：a) What is Li Ming's best friend's name?b) Is Li Ming outgoing?c) Is Li Ming rich?d) What is Li Ming good at?4. 创作能力请利用as as结构写一段话，比较你和你最喜欢的电影或电视剧里的一个角色。
such as的练习题
such as的练习题1. 下面的句子中，选择正确使用"such as"的选项：a) I enjoy fruits, as oranges and apples.b) I enjoy fruits, such as oranges and apples.c) I enjoy fruits, for example oranges and apples.答案：b) I enjoy fruits, such as oranges and apples.2. 请选择正确的句子，使用"such as"来引出例子：a) He likes different kinds of sports, like basketball, football, and tennis.b) He likes different kinds of sports, such as basketball, football, and tennis.c) He likes different kinds of sports, including basketball, football, and tennis.答案：b) He likes different kinds of sports, such as basketball, football, and tennis.3. 选择正确的选项来填补空白：I enjoy reading books, __________ novels and biographies.a) for exampleb) just likec) such as4. 请选择正确的句子，使用"such as"来提供详细的例子：a) She loves traveling to different countries, such as France and Italy.b) She loves traveling to different countries, for instance France and Italy.c) She loves traveling to different countries, including France and Italy.答案：a) She loves traveling to different countries, such as France and Italy.5. 下面的句子中，哪一个没有正确使用"such as"来引出例子：a) I have many hobbies, such as painting, hiking, and playing the guitar.b) I have many hobbies, including painting, hiking, and playing the guitar.c) I have many hobbies, like painting, hiking, and playing the guitar.答案：c) I have many hobbies, like painting, hiking, and playing the guitar.6. 选择正确的选项，来填补空白：She has traveled to various places, __________ London, Paris, and Tokyo.a) just likeb) such asc) for example7. 请根据句意选择正确的选项：I have visited many popular tourist destinations, __________ the Great Wall of China and the Taj Mahal.a) likeb) for examplec) such as答案：c) such as8. 请选择正确的句子，使用"such as"来提供详细的例子：a) My favorite colors are vibrant, for instance red, blue, and yellow.b) My favorite colors are vibrant, like red, blue, and yellow.c) My favorite colors are vibrant, such as red, blue, and yellow.答案：c) My favorite colors are vibrant, such as red, blue, and yellow.9. 选择下面的选项来填入空白：He enjoys outdoor activities, _________ camping, hiking, and fishing.a) such asb) just likec) for example答案：a) such as10. 请选择正确的句子，使用"such as"来引出例子：a) The new café offers a variety of beverages, like coffee, tea, and soda.b) The new café offers a variety of beverages, such as coffee, tea, and soda.c) The new café offers a variety of beverages, including coffee, tea, and soda.答案：b) The new café offers a variety of beverages, such as coffee, tea, and soda.这些题目是对使用"such as"的练习，希望能够帮助你更好地理解和运用这个短语。
AD-AS模型习题
第八章总需求-总供给模型判断题:1.根据财产效应,实际财产量越少,实际GDP需求量就越大。
2.在LAS曲线上，物价水平和资源价格的上涨都会导致物品和劳务的总供给量增加。
3.在SAS曲线上，物价水平的上涨会导致物品与劳务的总供给量增加。
4.当资本量增加时，LAS曲线和SAS曲线都会向右移动。
5.导致SAS曲线移动的任何因素都会造成LAS曲线的移动。
6.当实际GDP等于潜在GDP时，长期宏观经济均衡就会实现。
7.货币工资的增加会导致短期总供给的增加，也就是会导致SAS曲线向右移动。
选择题：1. 短期宏观经济均衡出现在。
A 经济处在充分就业的实际GDP水平上；B AD曲线与SAS曲线相交的实际GDP水平上；C SAS曲线与LAS曲线相交的实际GDP水平上D AD曲线与LAS曲线相交的实际GDP水平上。
2. 如果实际GDP大于潜在GDP，则经济A 没有处在宏观经济均衡中；B 处在充分就业均衡中；C 处在高于充分就业均衡中；D 处在低于充分就业均衡中。
3. 在以下哪条曲线上货币工资和物价水平会同比例变化？A AD曲线B SAS曲线C LAS曲线D 以上都不对4. 技术改进会导致A SAS曲线和LAS曲线向右移动；B SAS曲线和LAS曲线向左移动；C SAS曲线向右移动，而LAS曲线不变；D SAS曲线不变，LAS曲线向右移动。
根据表格回答5～8：单位：10亿美元5. 在短期宏观经济均衡中，物价水平是，实际GDP是。
A 100；6000亿美元B 110；7000亿美元C 120；6000亿美元D 130；6000亿美元6. 在短期内，经济处在A 充分就业均衡中，而且资源价格不变；B 高于充分就业均衡中，而且资源价格会上涨；C 高于充分就业均衡中，而且资源价格会下跌；D低于充分就业均衡中，而且资源价格会下跌。
7. 在短期均衡中，存在A 1000亿美元的膨胀性缺口；B 500亿美元的膨胀性缺口；C 500亿美元的衰退性缺口；D 1000亿美元的衰退性缺口。
as as的用法和练习题
as as的用法和练习题As as的用法和练习题在英语语法中，我们经常会遇到一种句式结构，即"As as"，它用来进行比较或者表达相等的程度。
在本文中，我们将探讨"As as"的用法，并提供一些练习题来帮助您更好地掌握这一语法结构。
首先，让我们来看一下"As as"的基本用法。
这个结构通常用于比较两个人或事物的相似程度，其中第一个"As"后面是形容词或副词，第二个"As"后面是一个名词或代词。
例如：1. My sister is as tall as me.（我的姐姐和我一样高。
）在这个例子中，我们使用"As as"来比较我和我的姐姐的身高，表示我们两个人的身高相等。
2. This book is not as interesting as the one I read last week.（这本书不如我上周读的那本书有趣。
）在这个例子中，我们使用"As as"来比较两本书的有趣程度，表示这本书的有趣程度不如上周读的那本书。
除了比较相等的程度，"As as"还可以用来表示不同的程度。
例如：1. The weather today is not as hot as yesterday.（今天的天气没有昨天那么热。
）在这个例子中，我们使用"As as"来比较今天和昨天的天气热度，表示今天的天气热度没有昨天那么高。
2. She doesn't work as hard as her sister.（她不像她姐姐那样努力工作。
）在这个例子中，我们使用"As as"来比较她和她姐姐的工作努力程度，表示她的工作努力程度不如她姐姐。
现在，让我们来进行一些练习题，以帮助您巩固对"As as"的理解。