商务英语试题答案

2025-01-14 版权声明 我要投稿

商务英语试题答案(精选8篇)

商务英语试题答案 篇1

(一)答案

单项选择

1.The earth has a partner in ____A____ trip around the sun.A.B.C.D.A.itsB.myC.yourD.you

2.The moon _B_____ the earth’s satellite.A.wasB.isC.wereD.are

3.It ___C_____ the moon twenty-eight days to go around the earth once.A.spendB.spentC.takesD.took

4.____B____ they are partners in the solar system, the earth and the moon are very different.A.WhenB.WhileC.AsD.After

5.It is a very colorful planet.The moon is grey and ___B_____.A.likelyB.lovelyC.livelyD.lifeless

6.__D______ can live on the moon.A.AnythingB.EverythingC.SomethingD.Nothing

7.There is __D______ air on the moon.A.someB.anyC.muchD.no

8.The moon has no water ____D____.A.tooB.eitherC.alreadyD.yet

9.If you ___A____ 100 pounds on the earth, you will weigh only sixteen pounds on the moon.A.weighB.weightC.weighsD.weighed

10.The temples are ___B_____ with people and filled with the smell of burning incense.A.crowdingB.crowdedC.crowdsD.crowd

11.On the second day of the new year, people go to ___C_____ fireworks at the Victoria Harbor.A.look atB.lookC.seeD.watch

12.For a farmer, wrong weather may ____A____ that he has poor crops, or no crops at all.A.meansB.meanC.meantD.meaning

13.Now satellites __D______ man to forecast the weather.A.were helpingB.was helpingC.is helpingD.are helping

14.They ___A_____ photos of the atmosphere and send them back to the earth.A.takeB.putC.makeD.use

15.When a storm is beginning, people will get a warning ___B_____ advance.A.fromB.inC.onD.to

16.They may even change _____D___ weather in some parts of the world.A.theB.aC.anD.17.They also have a way to destroy the clouds to prevent hail from ____B____ into being.A.comesB.comingC.cameD.come

18.But when she was one year old, she __D______ a serious illness with a very high fever.A.havingB.hasC.haveD.had

19.They brought a young woman Anne Sullivan to stay at their house __C______ help Helen.A.butB.thenC.andD.or

20.Anne taught Helen many important things, such as how to behave __C______ other children.A.likesB.unlikelyC.likelyD.like

21.Because Helen _C_______ so smart, she learned things very quickly.A.isB.areC.wasD.were

22.When she was eight, she ____B____ famous.A.becomeB.becameC.becomingD.becomes

23.Helen continued to ____B____.A.learnsB.learnC.learnedD.learnt

24.Helen did so well in college ___C_____ a magazine paid her to write the story of her life.A.itB.whoC.thatD.why

25.She traveled all around the world.A.overB.aboveC.aroundD.on

26.She wrote many books, including one __A______ her teacher, Anne Sullivan.A.aboutB.onC.inD.for

选择

1.It moves around the earth very ___quickly_____.(quickly, quick)

2.The earth is ____filled____ with life.(filled, fills)

3.You will not weigh as much ____as____ the moon as you do on the moon.(as, so)

4.It is very ___different_____ to walk on the moon.You will bounce and float.(different, differently)

5.___In_____ my experience, Hong Kong is a great place to spend Chinese New Year.(In, On)

6.Days before New Year, People visit temples to pray ____for____ the new year.(to, for)

7.They often __bring______ gifts of whole roast pigs.(bring, brought)

8.___On_____ New Year’s Eve, the family gather together for the traditional family meal.(In, On)

9.On New Year’s Day, the streets are really ____quiet____.(quite, quiet)

10.Almost all the stores ____are____ closed.(are, is)

11.When fireworks __start______, the sky is filled with colors, designs, lights and noise.(start, started)

12.The smells, sights, and sounds of Chinese New Year in Hong Kong are forever imprinted ___in_____ my mind.(in, on)

13.For sailors and airmen, bad weather often ___bring_____ danger, and sometimes even death.(bring, brought)

14.So man can ___see_____ the weather of any part of the world.(see, sees)

15.Scientists in many countries are looking ___for_____ ways to control storms and rain.(to, for)

16.For example, they have plans to make some places __warmer______.(warmest, warmer)

17.___As_____ a child, Helen was angry and lonely.(As, To)

18.But a happy thing _happened_______ when she was six years old.(happens, happened)

19.Her parents got a teacher _for_______ her.(for, with)

20.After __much______ hard work, Helen began to learn sign language.(many, much)

21.She learned ___how_____ to read Braille.(who, how)

22.People __were______ amazed at what she could do.(were, are)

23.When she was twenty years old, she __went______ to college.(go, went)

24.After college, she decided to earn a living __by______ writing and giving speeches.(by, with)

25.She worked to get special schools and libraries ___for_____ the blind and the deaf.(to, for)

英译汉

1.There is no weather, so the sky above the moon always looks black.没有天气,所以月亮上面的天空看起来总是黑色的。

2.Astronauts must wear special space suits when they walk on the moon so they can breathe.当宇航员行走在月球上的时候,为了可以呼吸,他们必须穿特殊的宇航服。

3.People there really know how to celebrate and they prepare in a variety of ways.这儿的人们真正知道如何庆祝并且他们用各种各样的方式准备。

4.They also buy special foods and ingredients for their family feasts, and small orange trees, peach trees and other flowers for their homes.他们不但为他们的家庭盛宴买特殊的食物和配料,而且为他们的家买小橘子树,桃树和其它花。

5.It is time for people to visit their relatives.到了人们拜访亲戚的时间了。

6.Weather is one of the most important things in man’s life.在人的一生中,天气是最重要的事情之一。

7.As a result, they usually have a better chance to protect themselves and their homes.结果,他们经常有一个比较好的机会保护他们自己和家。

8.We believe that man can get the weather under control some day.我们相信某一天人们可以控制天气。

9.Helen Keller was born normal and healthy.海伦凯勒正常健康的降生。

商务英语试题答案 篇2

正如2013年高考英语(福建)《考试说明》所述,阅读是我国考生接触英语,了解英语国家文化,培养跨文化交际意识的主要途径,是高中英语教学和测试评价的重点。因此,阅读理解在试卷中所占权重较大。

2. 阅读理解测试考生阅读理解书面英语的能力

它主要考查考生获取、分析和处理信息的能力。所选的文章内容贴近生活、贴近社会、贴近时代,语言地道,体裁多样,题材丰富。要求考生根据短文内容,从每题所给的4个选项中选出最佳选项。题目类型主要有:

2.1 理解短文中的具体信息

任何一篇文章都包含大量的细节信息,用来支持文章中心思想的阐述。这些细节对于理解文章内容至关重要。

2.2 根据上下文推断词义或句意

2013年《考试说明》强调推断生词含义是学生所必须具备的能力。也就是说,词汇是《考试说明》的重中之重,根据上下文推断词义或句意的题目应该会出。

2.3 作出简单判断和推测

阅读的主要目的是获取相关信息,也就是理解文章作者所要传达的信息。这些信息中,有些需要根据短文提供的线索和事实,进行判断和推理,推测出作者没有提到的事实或发生某事的可能性或趋势。

2.4 理解文章主旨和大意

每一篇文章都会有一个主旨和要义。在英语中,作者一般是在文章第一段甚至是第一句就表明文章的主旨大意。有时则放在文章的最后。少数文章的主旨大意需要从文章的字里行间进行推断。

2.5 理解文章的基本结构

了解了文章的结构,才能准确、深刻地理解文章内容。要把握住全篇文章的文脉,也就是句与句之间、段与段之间的逻辑关系。要理解文章中某一段落的作用或者某一些词语的指代关系等。

2.6 理解作者的态度、观点和意图

每一篇文章都会有一个特定的写作目的及意图。但是,这些信息通常并没有明确地表达出来,而是隐含在字里行间。学生要在理解文章总体内容的基础上,领会作者的弦外之音。

3. 高考英语阅读理解试题答题策略

在高考实际答题中,由于时间限制,考生不可能详细品读文章,最具实效的答题策略就是巧用关键词搜索答案出处,迅速准确地选对答案。以下以一篇人物传记题材的阅读理解题为例,说明如何确定关键词搜索答案。

【例】It was a very happy family.The life was fairly well off.Father, Leopold, was a music master in Austria.Mother was warm hearted.There were two children, Marianne, a schoolgirl, and little Wolfgang, a child not quite four years old.Marianne was learning to play the piano, and day after day Leopold stood behind her as she practiced.How patient her father was, and how cleverly he showedMarianne how to play some particularly difficult pieces!She was making progress, very good progress, and that was excellent. (1) And there, almost lost in the big chair, sat Wolfgang, who never had to be told to keep quiet when Marianne was practicing.

One evening at sunset Leopold patted Marianne’s shoulder, saying she had done well.At that moment Wolfgang climbed on his father’s knee and begged to be allowed to play the pretty piece Marianne had now mastered.What a joke that was!Picking up his baby son, Leopold laughed and said, (2) “Look at your small hands.You must wait, little man!”

(3) There was no end of fun during tea, and Marianne had to tell her mother about Wolfgang wanting to play a difficult piece.When the meal was finished, Marianne helped to clear away the dishes.Suddenly Leopold got up. (4) “Listen!”said he in a surprised voice.“Listen!”“Marianne is playing the piece better than ever!”

But Marianne was washing dishes in the kitchen.

His wife following, Leopold walked quietly upstairs, the lamp in one hand, his music book in the other.He pushed open the door, and there was little Wolfgang playing in the darkness.“I love it.”whispered the child.

It was the beginning of Mozart’s life of music.

1.Wolfgang was quiet when his sister practiced the piano because______.

A.he liked his sister

B.he loved music

C.he didn’t feel well

D.he didn’t want to make a noise

解析:推理判断题。根据判断, 关键词应为Wolfgang, quiet。用它们去文中扫描, 在第一段最后找到句子 (1) , 说Wolfgang不用别人提醒就会自觉安静下来听姐姐演奏, 表明他喜爱音乐, 故选B。

2.Wolfgang’s father told him he couldn’t play the piano yet because_______.

A.he was too small

B.his sister was taking lessons

C.he had to help his mother

D.he had to wait for his sister to finish practicing

解析:细节理解题。题干中出现told一词,跟说话有关,可能要在引号中找答案。在第二段最后找到句子 (2) ,说Wolfgang手太小,要等(到长大),故选A。

3.At tea time the family had______.

解析:细节理解题。根据判断,关键词应为tea。用它们去文中扫描,在第三段第一句找到句子 (3) ,其中“no end of fun”说明应选C。

4.Shortly after tea Leopold heard the music from upstairs.He was astonished because_______.

A.Marianne had never played the piece so beautifully

B.Marianne was washing dishes in the kitchen

C.Wolfgang was playing in the darkness

D.Wolfgang loved the piece so much

解析:细节理解题。题干中出现after tea,说明答案出处在第3题之后,且关键词应为astonished。但用它去文中第三段以后扫描,却找不到。我们在句子 (4) 中找到了它的同义词surprised,从该句知道应该选A。

用题干中的关键词去文中扫描找到答案,对于半数以上的阅读理解题是适用的,而且大大节省了考生的答题时间。我觉得在高考第二轮复习指导阅读理解题作答时效果良好,各位考生不妨一试。

摘要:文章对照2013年福建省高考《考试说明》, 结合对近几年高考试题的分析, 认真研究《考试说明》, 了解新课程高考英语试卷特点, 适用有效答题策略, 提高复习效率。

关键词:高考复习,阅读理解,答题策略

参考文献

模拟试题、大预测试题参考答案 篇3

一、1.A 2.C 3.B 4.C 5.B 6.C 7.A 8.C

二、11. 50° 13. 40°

14.2

三、16.原式=x-l,x不能取±1,答案不唯一.x分别取-2,O,2时代数式值分别为-3,-1,1.

17.(1)560(2)讲解题目的为84人,图略. (3)4.8万人.18.(l)证明略. 19.约为16.5米.20.点D的坐标为(0,8)。点E的坐标为 .21.(1)一台进口设备的价格为12万元,一台国产设备的价格是9万元.(2)方案一:进口l台,国产7台;方案二:进口2台,国产6台;方案三:进口3台,国产5台;方案四:进口4台,国产4台. (3)按方案四进口购买4台,国产购买4台的总费用最少.22.(1)①1 (2)补图略. (3)符合条件的点p有两个,分别是P1(2,2),P2(-2,6).

2015年中考数学模拟试题(2)

一、1.A 2.D 3.B 4.C

5.B

6.C

7.A 8.D

二.9.4

11. 40

13. 240

'

514.-12

三、16.原式:因-2

17. (1)60.(2)补图略. (3)约480人. 18. (1)∠EBC,∠ACD. (2)证明略.19.约1229米.21.(1)甲、乙两厂单独完成此工程各需要20天、30天. (2)最多安排甲队工作12天. 22. (1)∠AHE的度数为30°或120°,GH=GE.(2)∠AHE的度数为22.5°或112.5°,AE的长为[提示:仿(l),分两种情况(HF在DC的左侧或右侧)讨论]

(2)当t=2时,MN有最大值4. (3)(0,6),(0,-2),(4,4).

2015年中考数学模拟试题(3)

一、1.D 2.A 3.C 4.D 5.C 6.B 7.C 8.D

二、10.3

12. 4:1 13.-2814. 30°15.①②③

三、16. (1)3024 (2)5625 (3)2021.理由略.17.(1)证明略. (2)△DCE是直角三角形,∠DCE=90°.理由略.18.(1)“设乙车出发后x小时追上甲车”的说法有错误,因为本题要求用一次函数关系解决问题,所设应为变量,而“x小时追上甲车”中的x为追上所用时间,是常量. (2)设乙车行驶了x小时后,甲乙两车距离为ykm.根据题意得:y=60x0.5-(80-60)x.当乙追上甲车时,即y=0,求得x=1.5.答:乙车出发1.5小时后追上甲车.画图略.19.(1)600人. (2)补图略. (3)3200人.20.(1)约为6米. (2)结论:小树不用挪走,理由略.21.(1)310元. (2)p与x之间的函数关系式为p:200,当400≤x<600时,p随x的增大而减小.(3)当200≤x<250时,选择甲商场花钱较少;当x=250时,选择两家商场花钱相同;当250

2015年中考数学模拟试题(4)

一、1. C 2.B 3.C 4.A 5.C 6.B 7.B 8.A

二、9.-3

10.0

11.4

初一英语试题及答案 篇4

( )1.Alice is _____English girls. Li Ying is _____Chinese girl.

A. a, aB. an, anC. an, aD. a, an

( )2. Could you help _____, Please?

A. sheB. hisC. meD. I

( )3. Look! They ____with a ball.

A. play B. plays C. playing D. are playing

( )4. _____ the boys like living in China?

A. DoesB. DoC. AreD. Would

( )5.She likes ____books.

A. reads B. read C. to read D. reading

( )6. Look at Millie. is a student. hair is black.

A. She, She B. She, Her C. Her, Her D. Her, She

( )7. What day is it today?

A. It’s September 12B. It’s sevenC. It’s FridayD. It’s Sunny

( )8. There is a clock the wall in our classroom.

A. of B. in C. on D. between

( )9. There aren’t maps in the classroom, but there are pictures.

A. some; any B. some; some C. any; someD. any; any

( )10.Jenny has ____hair.

A. blond longB. long blondC. big blondD. blond big

( )11. Here is a new bag _____ you.

A. to B. from C. on D. for

( )12. Danny gets up ____8:00 ____the morning.

A. in, inB. at, atC. at, inD. at, on

( )13. There a teacher and three boys over there.

A. be B. is C. am D. are

( )14. —What is your father? — .

A. He’s at home B. He’s a teacher.

C. She’s a teacher D. He’s in his school

( )15.Please ______ the picture. It is very beautiful.

A. look at B. look C. have a look D. See

( )16. There aren’t____windows inmyroom. Are there ___windows in your room?

A. some, someB. any, anyC. some, anyD. any, some

( )17 .Look! It’s a photo _______ my family.

A. in B. of C. on D to

( )18. It’s cold today._______ the window, please.

A.Open B. Opens C. Close D. Closes

( )19. Let’s go to the store ____. It’s near here.

A. on footB. by busC. walkD. on feet

( )20.My father ____a car. He ____to work.

A. have, drive B. has, by car C. has, drives D. have, by car

二、完形填空(10分)

Jack is eleven years old. He is a middle school 43. He goes to school by bicycle every 44. His bike is very45. One day his bike is broken . So (于是) his father wants to buy a new bicycle for 46. On a Sunday morning , Jack and his father go to the department _47_ .Jack sees _48_ good bicycles. He chooses (选择) a blue_49_, because he likes blue50. “How much is it?” says his father . “365 yuan,” says the salesman . “I’ll take the bicycle .” Jack is very 51. He rides his new bicycle to his home . Now he goes to school 52his new bike every day.

()43. A. boyB. studentC. girlD. teacher

()44. A. DayB. monthC. yearD. /

()45. A. newB. brokenC. fineD. old

()46. A. herB. themC. himD. me

()47. A. shopB. storeC. officeD. palace

()48. A. manyB. anyC. muchD. a lot

()49. A. itB. thatC. thisD. one

()50. A. readyB. a lotC. rightD . then

()51. A .happyB. sadC. tiredD. bad

()52. A. inB. onC byD. for

三、阅读理解(20分)

A

Mr Bruce Green and Mrs Mary Green come from the U.K.. They have two children, their son is Jim. He is fifteen years old. Kate is Jim’s sister. She is thirteen. Mr Green works in No. 5 Middle school. Jim and Kate study in their mother’s school, but they are in different grades(年级). Jim is in Grade Two, and Kate is in Grade One. Jim and I are in the same class. Kate goes to school with us every day. They are my good friends. They like China very much.

()53. The Green family are living in ____ now.

A. America B. England C. China D. Japan

()54. Mr Green has ____ children.

A. one B. two C. three D. four

()55. Jim, Kate and I are in____ .

A. the same school B. the same class C. different schools D. the same house

()56. ____ go to school together every day.

A. Two people(人) B. Only one child C. Three people D. Five people

()57. Jim and Kate ____.

A. like China B. don’t like China C. don’t like school D. are not friends

B

Peter was a small boy. He lived with his parents in a small house near some hills. The people there were all poor.One night it was very dry and windy.When everybody was asleep, Peter suddenly heard some noise. It came out from the kitchen. He got up and walked to the kitchen. He found that the wood beside the stove (火炉) was burning . There was no water tap (水龙头) in the house , so he could not put out (扑灭) the fire . He shouted loudly to wake up everyone in the house. Then he ran out of his house and knocked on the doors of many houses to wake the people up. They all left their houses quickly.

At last the fire was put out by the firemen. Many houses were burnt. But nobody was burnt in the fire.

1.Peter lived with his______.

A.sisters B.brothers C.uncles D.parents

2.One night he found that______ beside the stove was burning.

A.the table B.the wood C.the door D.the window

3.______, so he could not put out the fire.

A.Everybody was asleep

B.He couldnt shout loudly

C.The kitchen was very big

D.there was no water tap in the house

4.Peter knocked on the doors of many houses______.

A.to wake the people up

B.to get some water

C.to find his classmates

D.to visit them

5.______hurt in the fire.

A.People in other houses were B.Peters parents were

C.Nobody was D.Peter was

四、选择适当句子完成对话。(10分)

Mother: Dear son, _38_

Son: I’m watching some pictures on line, Mum.

Mother: Supper is ready. Please have supper .

Son: OK, Mum

Mother: What pictures , my dear?

Son: _39_

Mother: Oh, this is Yao Ming. He plays basketball very well.

Son: Great. I like him very much. But do you know where he is now?

Mother: Of course. _40_

Son: __41__

Mother: Sorry. _42_

Son: Ha…Let me tell you. He is 2.26meterstall.

Mother: Well ,have supper quickly.

A. what are you doing ?

B. He is in the U.S..

C. They are about sport stars (体育明星)

D. What’s the matter?

E. Can you tell me ?

F. Do you know how tall he is?

五、句型转换(10分)

My right foot hurts. (一般问句)

______ your right foot ______?

Those are apples. (变单数句)

______ is _____________.

This coat is fifty yuan. (划线部分提问)

______ ______ is this coat?

There are some books on my shelves. (同意句转换)

______ ______ some books ______ the shelves.

There are four children on the playground. (划线部分提问)

_______ ______ children ______ _____ on the playground?

六、汉译英(10分)

1.我不得不做英语作业。

I _______ ________ do my English homework.

2.我觉得我家的约束太多了。

I think I have ________ ________ rules in my house

3.你认为你的英语课怎么样?

What do you ________ ________ your English class?

4.他的生日是11月1日。

____________________________________________

5.现在几点了?8点15了。

_____________________________________________

七、书面表达。(不少于60字)(20分)

My Family Rules. (假如你是Mike,家里有很多约束,你写信给你的笔友John,倾诉你内心的烦恼和不快。开头已给出)

Dear, John,

I’mnothappy.

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

答案(按照顺序很好对号入座):

1~5CCDBD6~10BCCCB11~15DCBBA

16~20BBCAC43~47BADCB48~52ADBAB

53~57CBACA 1~5 DBDAC

四、ACBFE

五、Does; hurt That;an apple How much I have ; on How many ; are there

六、1.Have to ; 2.too many 3. think of ; 4.His birthday is November 1st.

商务英语模拟试题及答案一 篇5

Questions 1-7

. Read these sentences and the following business index.

. Which advisor each sentence (1-7) describe?

. For each sentence mark one letter (A, B,C,D or E) on your Answer Sheet.

Example

The company invests a large sum of money in high technology.

Answer: E

1. It is engaged in the expansion of a telecommunications line.

2. No other steel industries have such a high rating.

3. The company is the chief holder of a British company’s shares.

4. As much as forty million U. S. dollars are invested in Taiwan.

5. It has business transactions with an American company.

英语测试题及答案 篇6

1.The old ____well looked after by the government in China.A.is B.are C.has been D.was

2.The secretary and manager ____very busy now.A.is B.are C.was D.were

3.Both the secretary and the manager _____agreed to attend the meeting.A.has B.have C.are D.was

4.Tom as well as two of his classmates _____invited to the party.A.was B.were C.have been D.had bee

5.Either you or I _____going to the teachers‘ office after class.A.am B.is C.are D.will

6.Most of his spare time ____spent in reading.A.are B.were C.was D.have been

7.This is one of the best novels that ____appeared this year.A.have been B.has C.had been D.have

8.Ten thousand dollars _____quite a large sum.A.are B.is C.were D.have

9.About 20 percent of the work ____done yesterday.A.are B.is C.were D.was

10.Mr Smith,together with his children,____arrived.A.are B.has C.is D.have

【答案解析】

商务英语试题答案 篇7

经过分析, 我发现试卷中的填空题的答案部分一般都是格式相同的下划线, 而判断题的答案部分使用的也全是对号和错号。那么这就可以使用Word 2007中的“选择格式相似的文本”这个功能来将试卷中的填空题, 判断题的所有答案批量快速“删除”, 具体的操作步骤如下:

(1) 首先, 你必须选中试卷中的任意一个填空题的答案部分, 也同时选中了答案所在的下划线的部分, 然后在“开始”-“编辑”-“选择”中选择“选择格式相似的文本”按钮, 这个时候你会发现包含下划线在内的所有填空题的答案部分都已经被同时选中了。

(2) 然后你打开“字体”对话框, 将“字体颜色”设置为白色, 这样就让填空题的答案部分与背景颜色相同, 达到了变相删除答案的目的;而且这样也方便以后查看和编辑。但是这样下划线就也变得看不到了, 所以我们就将“下划线颜色”设置为黑色, 这样下划线也就显示出来了。

(3) 完成上述操作设置以后, 单击确定, 试卷中原有的填空题的答案就全部被“删除”掉了。

测试题参考答案 篇8

1. A 2. C 3. D 4. A(提示:D项当a=0时不成立) 5. C 6. D(提示:可令a=3k,b=5k,c=7k)

7. 1∶ 8. 4 9. 4 10. 答案不唯一,如=. 11. 8 12 15(提示:x∶y=2∶3=8∶12,y∶z=4∶5=12∶15,故x∶y∶z=8∶12∶15,可令x=8k,y=12k,z=15k) 12. 2或-1(提示:注意有a+b+c=0的情况)

13. 由题意知,AC=×AB=×240=40(km),DB=×AB=×240=20(km).

∴CD=AB-(AC+DB)=240-(40+20)=180(km).180÷3=60 (km/h).

因此,客车的行驶速度是60 km/h.

14. 设===k,则x=3k,y=4k,z=5k,==.

15. 由==,可得===.又因为a+b+c=12,所以容易求得a=5,b=3,c=4.因b2+c2=a2,所以△ABC为直角三角形.

16. 易知BC=AD=12.又因为E为BC中点,所以BE=BC=6.在Rt△ABE中,∠B=30°,易得出AE=2.所以AE∶BC=2∶12=∶6.

《黄金分割》测试题

1. C2. A3. B4. B5. A6. B

7. = 黄金分割点 黄金比 8. 5 9. (3-3) cm

(9-3) cm 10. 23 11. (2)、(4) 12. 5(3-) cm 10(-2) cm

13. AC=5(-1) cm,AD=(15-5) cm,CD=(10-20) cm.

14. 两种情况:AC=AB=(5-5) cm;或BC=AB=(5-5) cm,则AC=(15-5) cm.

15. 设她应选择x cm的高跟鞋,则≈0.618,解得x≈4.8.因此,她应选择4.8 cm高的高跟鞋,这样看起来才更漂亮.

16. 略.

《形状相同的图形》测试题

1. C 2. C 3. D 4. B 5. B

6. 相同 7. 相同 8. 2 cm 60° 9. 相同 相等 10. 相同

11. 一个正方形和一个长方形的形状不一定相同,因为边长不一定是对应成比例的;两个正方形的形状相同.

12. 只需画一条与一边平行而与其余两边相交的直线即可.

13. 如同一底版洗出来的两张不同尺寸的照片,复印机复印得到的图形与原来的图形,放大镜放大前后的图形等.

14. 略.

15. 略.

《相似多边形》测试题

1. D 2. D 3. C 4. A提示:设原矩形长a,宽b,则a∶b=b∶ 5. A 6. B

7. 对应边的比 8. 不一定 9. 不一定 10. 1∶3 11. 125° 12. 答案不唯一,如:正方形,等边三角形.

13. 设宽应加长x,由对应边成比例可得=,解得x=.因此,宽应加长.

14. 不相似.理由如下:若相似,设小路宽x m,由相似多边形的对应边成比例可得=, 解得x=0,不符合题意,因此,不可能相似.

15. 设矩形ABCD中AD=x cm.由E是AD的中点可知ED=x cm.由相似矩形的对应边成比例可得=,即=,解得x=10.

所以矩形ABCD的面积为10×10=100(cm2).

16. 如图1,设矩形为ABCD,正方形为AEFD.根据题意知矩形ABCD∽矩形EFCB,所以=.又因为BC=AD=AE,所以=.所以E是AB的黄金分割点.

所以==,==.

即原矩形的长与宽的比为.

《相似三角形》测试题

1. D 2. A 3. A 4. A 5. D 6. B(提示:可先将相似比化为有“公共部分”的形式,2∶3=10∶15,5∶4=15∶12)

7. 相似比 8. 相似 9. 4.5 cm(提示:△BED是等腰三角形,DE=3 cm) 10. 2(提示:50 cm不截,无法做成;50 cm截,则30 cm分别对应50 cm和60 cm) 11.cm或 cm(提示:有两种对应情况) 12. ③④⑤(提示:计算边长判断)

13. 因为△ABC∽△ACP,所以=.因AP=2,AC=4,所以AB=8.

14.由已知得△ABC的周长为12+18+24=54(cm).

所以△A′B′C′与△ABC的相似比等于81∶54,即3∶2.

则===,=== .

∴A′B′=18 cm,B′C′=27 cm,A′C′=36 cm.

15. (1)根据三角形中位线定理,得DE=EF=DF=a,所以△DEF是等边三角形,△DEF与△ABC相似,相似比为.

(2)△ABC的面积为BC•AE=a•=a2.

△DEF的面积为•a•=a2.

(3)这两个三角形的面积比等于边长之比的平方.

16. (1)在等腰梯形ABCD中,∠B=60°,所以∠C=60°.又因为∠APE=∠B,而∠APC=∠APE+∠EPC=∠B+∠BAP,所以∠BAP=∠EPC.故△ABP∽△PCE.

(2)因为四边形ABCD是等腰梯形,AD=3 cm,BC=7 cm,∠B=60°,则过点A作BC的垂线,利用直角三角形30°角所对的边是斜边的一半,可以求得AB=2××(BC-AD)=4(cm).

《探索三角形相似的条件》测试题

1. C 2. C(提示:公共角的两边成比例) 3. D 4. A 5. C 6. D

7. DE∥BC 8. 1 9. 3.5 10. AD∶AC=AE∶AB ∠ADE=∠ACB ∠AED=∠ABC 11. 7.5(提示:利用相似) 12.

13. 因为AD⊥BC于D,DE⊥AB于E,所以∠BED=∠ADB=90°.又∠B=∠B,故△ABD∽△DBE.所以=,即BD2=AB•BE.因为AB=AC,AD⊥BC于D,故BD=CD.

所以CD2=AB•BE.

14. (1)因为∠1=∠3,故∠1+∠2=∠3+∠2,即∠BAC=∠DAE.

又因为∠B=∠D,故△ABC∽△ADE.

(2)因为△ABC∽△ADE,所以=,所以AD=.

15. 设敌方建筑物的高度为h,由相似三角形知识易知=,解得h=4 000 cm=40 m,即敌方建筑物高40 m.

16. 自题图中木棒上端作油桶下底的垂线,被油面所截,构成相似三角形.设桶内油的高度是x m,根据题意得=,解得x=0.8.

所以,桶内油的高度是0.8 m.

《测量旗杆的高度》测试题

1. D 2. D 3. C(提示:△ABC与△ADC,△PDF与△PAB,△PDF与△BCF,△PAB与△BCF,△AEP与△CEB,△ABE与△CFE) 4. D 5. C 6. B

7. 30 m 8.cm(提示:△ABE∽△EDC) 9.4 m 10.11. 4.2(提示:过D点作DE⊥AB于E,利用相似性先算出AE)12. 150 m

13. 由直角三角形斜边中线的性质,DE=AE.故∠ADE=∠DAE=90°-∠BAD=∠B.故△BDF∽△DAF,△BAC∽△BDA.故AB∶AC=BD∶AD=BF∶DF.

14. 因为AC=,AD=2,所以CD==.

要使这两个直角三角形相似,有两种情况:

(1)当Rt△ABC∽Rt△ACD时,有=,故AB==3.

(2)当Rt△BAC∽Rt△ACD时,有=,故AB==3.

故当AB的长为3或3时,这两个直角三角形相似.

15. ①t s时,AP=2t cm,DQ=t cm,QA=(6-t) cm.

当QA=AP时,△QAP为等腰直角三角形.则6-t=2t,解得t=2.

∴当t=2时,△QAP为等腰直角三角形.

②根据题意可分两种情况来研究:

当=时,△QAP∽△ABC.

那么有:=.解得t=1.2.即当t=1.2时,△QAP∽△ABC.

当=时,△PAQ∽△ABC.那么有:=.解得t=3.

即当t=3时,△PAQ∽△ABC.

∴当t=1.2或t=3时,△APQ与△ABC相似.

16. 依题意可画示意图,如图2,由题意知AM=25 m,BC=20 m,DE=50 m.由BC∥DE知,△ABC∽△ADE,从而===.河宽为 MN,AM、AN分别为△ABC、△ADE的对应高线,从而=.因AM=25 m,故AN= m.所以MN=AN-AM=-25=(m),即河宽为 m.

《相似多边形的性质》测试题

1. D 2. A 3. C(提示:QB=AB=BC=CR,故PA∶PQ=AD∶QR=1∶3) 4. D(提示:利用相似比与面积比的关系) 5. C 6. B

7. 2∶3 2∶3 8. 5 cm 9.10. 3(提示:△ABP∽△PCD,且PC=BC-BP=AB-BP) 11. 40 cm和100 cm 12. 4

13. 由角平分线及三角形内角和定理知:∠1+∠2+∠DAO==90°.再由AO⊥DO可得∠5=90°-∠DAO=∠1+∠2.而∠5=∠3+∠4,从而∠1+∠2=∠3+∠4.由∠1=∠3可得∠2=∠4.于是△OBD∽△CBO.

14. (1)△ABE与△ADF相似.理由:因为∠BAE+∠EAD=90°,∠FDA+∠EAD=90°,所以∠BAE=∠FDA.又因为∠B=∠DFA=90°,所以△ABE∽△DFA.(2)因为AB=6,BE=8,所以由勾股定理AE=10.又因为△ABE∽△DFA,所以=.故DF=7.2.

15. 由∠A=∠A,∠AED=∠ACB=90°,故△ADE∽△ABC.又AB=10,BC=6,∠C=90°,由勾股定理可得AC=8.

从而S△ABC=BC×AC=24.又==,故有=2=,=,故S△ADE=.从而S四边形DEBC=24-=.

16. (1)易证△AMD∽△CMB,所以=2=.

△AMD地带种满花后共花了160元 ,所以△BMC地带所需费用为:160×4=640(元).

(2)所筹集的资金,现剩:1 700-640-160=900(元).因为△AMD与△BMC的相似比为1∶2,所以AM∶MC=1∶2,DM∶MB=1∶2.

又因为△AMD和△CMD等高,△AMD和△AMB等高,故△CMD的面积是△AMD的2倍,△AMB的面积是△AMD的2倍.

∴ △AMB与△CMD的面积和为△AMD面积的4倍.

又因为△AMD的面积为160÷8=20(m2),所以△AMB和△CMD的面积和为80 m2.设种玫瑰为x m2,则种茉莉(80-x) m2,由题意可知:12x+10(80-x)=900.解得:x=50.

∴ 种50 m2玫瑰和30 m2茉莉,刚好用完所筹集的资金.

《图形的放大与缩小》测试题

1. D(提示:每两个都是,以它们的公共点为位似中心) 2. C 3. B

4. 位似中心 5. 放大或缩小 6. 位似比 7. ①②③ 8. ①②③④ 9. 48 cm

10. 作图略.

11. ①、②都可以看成位似变换.位似中心分别为点O、A.③中的△ABC与△ACD虽然相似,但对应点的连线并不交于一点,所以③不是位似变换.④也不是位似变换,因为不是所有对应点的连线都经过D点.

12. 作图略.

13. 过O作OD∥CA交AB于点D,则D点为所求之点.其坐标为(-2,6).△DBO与△ABC的相似比为.

14. A、B、C的对应点的坐标(乘2,乘-2)分别为A′(4,2),B′(8,8),C′(12,6)和A″(-4,-2),B″(-8,-8),C″(-12,-6).如图3.

15. 作图略.点A、B、C、D的对应点的坐标分别为A′(4,4),B′(2,0),C′(6,-2),D′(8,2)和A″(-4,-4),B″(-2,0),C″(-6,2),D″(-8,-2).

16. 位似中心的坐标为O(0,0),白鱼和黑鱼的相似比为.

《相似图形》单元测试题

1. B 2. C 3. C 4. B(提示:利用两边和夹角的关系) 5. B(提示:MF∶CD=AM∶AC,ME∶CD=BM∶BD,而AM∶AC=BM∶BD=a∶(a-b)) 6. B 7. B 8. D

9.26 10. 15-5 11.12. ∶1 13.14. 或-1 15. 1∶3(提示:S△DOC∶S△BOC=DO∶BO) 16. 48 cm

17. 因为==,所以a=b,c=b. 所以b+b+b=60.解得b=20.所以a=×20=15,c=×20=25 .因为152+202=252,所以△ABC为直角三角形,且∠C=90°.所以S△ABC=ab=150.

18. 因为AB∥DE,所以∠EDB=∠ABD.又因为BD为∠ABC的平分线,所以∠ABD=∠EBD.所以∠EBD=∠EDB,所以△BED为等腰三角形,DE=BE=3 cm.因为AB∥DE,所以△ABC∽△DEC.设EC为x cm, 则=,即=.解得x=4.5.

因此,EC的长为4.5 cm.

19. 略.

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