文档库 最新最全的文档下载
当前位置:文档库 › Unit 3 单元测试题 1

Unit 3 单元测试题 1

Unit 3 单元测试题 1
Unit 3 单元测试题 1

Unit 3单元测试题1

Written test part (共95分)

Ⅴ. 单项选择(每小题1分,共15分)

从A、B、C、D四个选项中选出可以填入空白处的最佳答案。

( ) 21. —Of the three girls, which one is your new friend?

—The one long hair and big eyes.

A. on

B. for

C. with

D. in

( ) 22. —What do your children do, Mrs. Green?

—My son and daughter are teachers.

A. both

B. all

C. every

D. each

( ) 23. Mary is better than Alice at playing chess.

A. many

B. few

C. much

D. little

( ) 24. If you don’t listen to your teachers carefully in class, you won’t get good in the test.

A. dreams

B. grades

C. messages

D. rules

( ) 25. My sister is as as her classmate Joe, so they are good friends.

A. outgoing

B. more outgoing

C. the more outgoing

D. the most outgoing

( ) 26. The happiest thing for me is what I know with others.

A. share

B. to share

C. decide

D. to decide

( ) 27. Dale, I’m sorry to your cup. But I’ll buy you a new one.

A. break

B. try

C. win

D. swing

( ) 28. Linda her sister in many ways. They are tall and friendly.

A. like

B. likes

C. are like

D. is like

( ) 29. I don’t think Ann is more popular than Bob —in other words, Ann is popular than Bob.

A. a lot

B. less

C. a little

D. more

( ) 30. The only thing Jack seems to is his work, so he spends little time with his family.

A. bring out

B. care about

C. reach for

D. wait for

( ) 31. Gina is very funny and what she said always makes all of us .

A. laughed

B. laugh

C. to laugh

D. laughing

( ) 32. I can’t hear you. Can you speak more ?

A. truly

B. quickly

C. loudly

D. differently

( ) 33. Her face was when she told us the bad news.

A. relaxed

B. tidy

C. handsome

D. serious

( ) 34. —How do you like the soccer game?

— .

A. It’s fantastic

B. By practicing it

C. It’s in our school sports club

D. It’s between Class One and Class Two

( ) 35. —Does Wu Qiang study harder than Li Guang?

— . Li Guang studies harder.

A. Yes, he is

B. Yes, he does

C. No, he isn’t

D. N o, he doesn’t

Ⅵ. 完形填空(每小题1分,共10分)

先通读下面的短文,掌握其大意,然后从A、B、C、D四个选项中选出可以填入空白处的最佳答案。

Alice Jones works in St. Louis, Missouri. She teaches 36 in a big middle school. Because she 37 uses interesting ways to help her students solve (解决) math problems, they all like her —she is very 38 . She is a star teacher in her school.

Several days ago, a small middle school 39 New York invited (邀请) Alice to work there. Sometimes she wanted to take the new job and sometimes she 40 it.

The middle school in New York is 41 than the school Alice works in now. But Alice can have a new beginning. The middle school she 42 in now is so far that it takes her a long time to get there every day.

However, the school in New York doesn’t 43 as much as the school in St. Louis. It will only pay her $2,000 every month. It’s less than the money she gets now. 44 New York seems like a better city to work in than St. Louis.

After thinking for several days, Alice 45 to move to New York. Maybe she will have lots of problems in the new school. She still wants to have a try.

( ) 36. A. math B. geography C. history D. science

( ) 37. A. still B. ever C. always D. also

( ) 38. A. outgoing B. popular C. hard-working D. friendly

( ) 39. A. for B. by C. to D. in

( ) 40. A. learned about B. talked about C. worried about D. cared about ( ) 41. A. bigger B. smaller C. dirtier D. cleaner

( ) 42. A. arrives B. studies C. works D. lives

( ) 43. A. share B. get C. need D. pay

( ) 44. A. But B. And C. So D. Or

( ) 45. A. forgot B. called C. disliked D. decided

Ⅶ. 阅读理解(每小题2分,共20分)

A

Friends are very important in everyone’s life because friends are always there when we need them. It’s great to have many friends, and I can’t think about my life without my friends.

My best friend is Lisa. When I first met her, I was five. She is one year older than me. Now she is in the same class with me, in the 7th grade. She is tall and quite thin. She has long curly blond hair and blue eyes. I am not so beautiful. Sometimes I wish I could be as beautiful as she is.

My name’s Mo lly. I am tall enough but a little fat. Lisa and I like doing a lot of things together and talking about different things. She always helps me with my math and I sometimes help her with her English and history. I had to do a report (报告) on science once, but I didn’t understand (理解) what the teacher said. The next day, I read it in front of the class. But the teacher told me that my report was wrong and all my classmates laughed at (嘲笑) me. I felt very bad about myself. Lisa was the only one who didn’t laugh at me. She tried to be nicer than anybody else and make me happy.

I am a shy person and sometimes I feel that people don’t understand me. Lisa is friendly and everybody loves her. She is also smart and she can deal with (解决) everything. I am happy to have a friend like her.

根据材料内容选择最佳答案。

( ) 46. When Molly first met Lisa, Lisa was years old.

A. 5

B. 6

C. 7

D. 8

( ) 47. Lisa always helps Molly with her .

A. math

B. English

C. history

D. science ( ) 48. Why did Molly feel bad after reading the report?

A. Because Lisa did better than her.

B. Because she didn’t read it aloud.

C. Because her classmates laughed at her.

D. Because the teacher didn’t understand her.

( ) 49. Which of the following words CANNOT describe Lisa?

A. Shy.

B. Friendly.

C. Popular.

D. Smart.

( ) 50. What can we learn from the passage?

A. Lisa is taller than Molly.

B. Molly is more beautiful than Lisa.

C. Lisa has brown hair and blue eyes.

D. Molly is happy to have a friend like Lisa.

B

What do you like to do in your free time? Baking (烘烤) is always my favorite thing to do. Last Sunday I felt like baking something, so I read through my cookbook and had a really good idea. I decided to bake a strawberry cake.

My mom went to the shop with Ollie to buy some strawberries. When they came back, I started to bake. It was fun, and Ollie was watching next to me. Of course, he wanted to help, so he was putting his little hands in my mixture (混合物) all the time. We started fighting because I really couldn’t work when a little noisy boy was next to me. I asked my mom to take him away from the kitchen.

Minutes later I put the cake into the oven (烤箱). After some time, the kitchen was full of the smell of the cake. Soon the cake was baked and I had only one more thing to do — I needed to put sugar (食糖), water and strawberry juice together and then spread (涂) the mixture over the cake. I have to say, the cake was much more delicious than any cake I bought in the supermarket.

根据材料内容选择最佳答案。

( ) 51. What does the writer like doing best in her free time?

A. Baking.

B. Eating.

C. Shopping.

D. Reading.

( ) 52. Why was Ollie putting his hands in the writer’s mixture all the time?

A. Because he thought he could do better than the writer.

B. Because he tried to find some strawberries in it.

C. Because the writer asked him to help.

D. Because he wanted to help.

( ) 53. Ollie might be the writer’s ______.

A. sister

B. father

C. brother

D. classmate

( ) 54. The underlined word “smell” means “______” in Chinese.

A. 包装

B. 气味

C. 形状

D. 原料

( ) 55. What was the last thing for the writer to do?

A. Buying some strawberries.

B. Putting the cake into the oven.

C. Reading through the cookbook to find something interesting.

D. Spreading the mixture of sugar, water and strawberry juice over the cake. Ⅷ. 情景交际(每小题2分,共10分)

根据对话内容,用恰当的句子填空,使对话完整、通顺。

A: Hello, are you Jane?

B: Yes. But (56) __________________________?

A: Of course, you know me. I am Helen! We were classmates in primary school. Don’t you remember me?

B: Oh, you are Helen. You look different. You had long hair before. But (57)

__________________________.

A: Yes. You have also changed (改变) a lot. You were very short then. However, you are much taller and more beautiful now.

B: Thank you. Why are you here? (58) __________________________?

A: No, I’m not shopping. I’m working here.

B: Great! I need a new skirt, but I don’t know which one I should buy.

A: (59) __________________________?

B: Hmm ... I don’t think it’s large enough.

A: That one is larger. You can have a look at it.

B: Well, I think it’s OK. (60) __________________________?

A: It’s 100 yuan.

B: OK. I’ll take it.

Ⅸ. 词汇运用(每小题1分,共10分)

A) 根据句意,从方框中选择恰当的单词填空,有的需要变换形式。

61. It was such a sad film that it __________ all of us.

62. Sleep is __________ to health, so we should sleep at least 7 hours every day.

63. Although he is only one year old, he can speak __________.

64. Our school had two dance __________ last year.

65. I learnt lots of __________ from the book, such as “A friend in need is a friend

indeed (真正地)”.

B) 根据句意,用括号内所给单词的适当形式填空。

66. Tony likes to play basketball. He is __________(talent) in it.

67. The writer often uses some useful __________(information) on the Internet to

write stories.

68. Kate sat there __________(quiet) and said nothing.

69. Mary is much __________(bad) at tennis than I am.

70. There are three __________(mirror) in her room.

Ⅹ. 完成句子(每小题1分,共5分)

根据汉语意思完成英语句子,每空词数不限。

71. 在某些方面我的房子不同于你的房子。

My house __________________ your house in some ways.

72. 这辆自行车和她的相似。

This bike __________________ hers.

73. 只要不下雨我就去锻炼。

I will exercise __________________ it do esn’t rain.

74. 事实上,你表弟比李军学习更用功。

__________________, your cousin is more hard-working than Li Jun.

75. 我弟弟不像我跑得那样快。

My brother doesn’t run __________________ I do.

Ⅺ. 综合填空(每小题1分,共10分)

阅读短文,从方框中选择恰当的词并用其适当形式填空,使短文通顺、意思完整,每词限用一次。

There was once a teacher who gave his students some sunflower seeds (葵花籽). One boy in the class (76) ________ eating sunflower seeds, so he was very excited and planted (种植) his seed behind his house.

A few days (77) ________, a shoot (嫩芽) came out. The boy went to his teacher and asked, “(78)________ can I get many sunflower seeds?” The teacher answered that he still had to (79) ________ for quite some time before he would be able to get many seeds from the sunflower. The boy was not happy, (80) ________ he kept on looking after (照料) his sunflower.

However, the boy (81) ________ impatient (不耐烦的) day by day. He often asked his (82) ________ when he could eat the sunflower seeds. (83)________ the teacher asked h im to wait, when the boy saw the sunflower’s seeds, he cut the plant and wanted to (84) ________ the seeds. But the plant was still green and the seeds couldn’t be eaten.

The boy was sad. He cared about his sunflowers so much, but in the end he got (85) ________ because he was impatient. Luckily his friends were good enough to share their delicious sunflower seeds with him.

Ⅻ. 书面表达(15分)

假如你们英语老师要组织一次以“我的好朋友”为主题的交流会。请根据以下提示用英语写一篇发言稿来介绍你的一位好朋友。70词左右,可适当发挥,开头和结尾已给出,不计入总词数。

提示:1. 谁是你的好朋友;

2. 你的好朋友与你的相同之处和不同之处;

3. 你的交友观。

Good morning, everyone!

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________ _____________________________________________________________________ _____________________________________________________

That’s all. Thank you!

参考答案

Ⅴ. 21-25 CACBA 26-30 BADBB 31-35 BCDAD

Ⅵ. 36-40 ACBDC 41-45 BCDAD

Ⅶ. 46-50 BACAD 51-55 ADCBD

Ⅷ. 56. do I know you

57. your hair is short now / you have short hair now

58. Are you shopping

59. What / How about this one

60. How much is it

Ⅸ. 61. touched 62. necessary 63. clearly

64. competitions 65. sayings 66. talented

67. information 68. quietly 69. worse

70. mirrors

Ⅹ. 71. is different from / isn’t the same as

72. is similar to 73. as long as 74. In fact

75. as / so fast as

Ⅺ. 76. loved 77. later 78. When 79. wait 80. but

81. became 82. teacher 83. Although 84. eat

85. nothing

Ⅻ. One possible version:

Good morning, everyone! My good friend is Zhao Min. She is talented in music and I am, too. Both of us like playing sports. But there are some differences between us. She is more outgoing than I. At schoolwork, she is not as hard-working as I. Also, she likes to go online when she is free, but I like reading books.

I think good friends should help each other. It’s not important to be the same or different.

That’s all. Thank you!

简单机械单元测试题 含答案

简单机械单元测试题含答案 一、简单机械选择题 1.如图所示,规格完全相同的滑轮,用相同的绳子绕成甲、乙两个滑轮组,分别提起重为G1和G2的两个物体,不计摩擦与绳重,比较它们的省力情况和机械效率,下列说法正确的是 A.若G1=G2,则F1<F2,甲的机械效率高 B.若G1=G2,则F1>F2,乙的机械效率高C.若G1<G2,则F1<F2,甲、乙的机械效率相同 D.若G1<G2,则F1<F2,乙的机械效率高 【答案】D 【解析】 【详解】 A. 由于滑轮组相同,并且不计摩擦则额外功相等,若G1=G2,则有用功也相同,所以机械效率相等,故A错误; B. 甲图n=3,F1=G1,乙图n=2,F2=G2,若G1=G2,则F1

最新人教版六年级上册圆的单元测试题以及答案

最新人教版六年级上册圆的单元测试题 一、填空。 1、圆的半径扩大3倍,直径扩大倍,周长扩大倍,面积扩大倍 2、两个圆的半径分别是3cm和5cm,它们的直径的比是,周长的比是,面积的比是。 3、一个圆的直径是6dm,那么它的半径是,周长是,面积是 4、圆的半径是4cm,它的直径是,周长是,面积是 5、一个圆的周长是18.84m,它的半径是,直径是,面积是 6、一个圆的面积是50.24cm2,它的半径是,直径是,周长是 7、在一张长8厘米,宽12厘米的长方形纸上画一个最大的圆,这个圆的直径是,面积是,周长是。 8、一个环形的外圆直径是10cm,内圆直径是8cm,它的面积c m2。 9、在一个边长8厘米的正方形里画一个最大的圆,这个圆的周长是厘米,面积是

14、一个圆的半径6分米,如果半径减少2分米,周长减少分米,面积减少了 二、判断 1、圆心决定圆的位置,半径决定圆的大小。() 2、当圆的半径等于2分米时,这个圆的周长和面积相等。() 3、周长相等的两个圆,面积也一定相等. ( ) 4、同一个圆的直径一定是半径的2倍。() 5、两端都在圆上的线段,直径是最长的一条。() 6、半圆的周长是圆周长的一半。() 7、圆有无数条对称轴。() 8、圆的半径都相等。()

16、周长相等的长方形,正方形,圆,面积最大,面积最小 17、在一个边长是5分米的正方形铁皮中间剪去一个半径是2分米的圆片后,剩下平方分米的铁皮 三、选一选。 1、圆周率π()3.14。 A、大于 B、等于 C、小于 2、下面各图形中,对称轴最多的是()。 A、等腰三角形 B、正方形 C、圆 3、一个圆的周长是31.4分米,这个圆的面积是()分米2。 A、314 B、78.5 C、15.7 4、一个半圆,半径是r,它的周长是()。 A、πr + 2r B、πr π C、 4

九年级英语Unit3测试题

T e s t o f u n i t3, I.听力(20%) 1.请听句子,选择与之相应的图画(5%) 2.请听对话,根据其内容完成下列任务(5%) 请听第一段对话,回答第六和第七小题 ()’ttheboydoathishouse 请听第二段对话,判断第8-10小题的正(T)误(F) (). (). (). 请听短文,选择最佳答案(10%) () II.单词拼写(10%) 1.Doyouhaveadriver’sl____________ 2.Idon’tknowifitisbadformyhealthtohavemyearsp____________. 3.Agroupofv___________willcomeherethisFriday. 4.Itisveryimportanttoc___________majorwhenyougotouniversity. 5.MostofteenagersinAmericahavep____________jobs. 6.Whathesaidsoundsimpossible,soId__________withhim. 7.OnlyEnglish-Englishd____________shouldbeused. 8.Ican’tc____________onmystudieswithallthatnoisegoingon. 9.Followingthenationalnewswehavethel___________newsandweather, 10.Wearep___________hisplaynextweek. III.根据上下文填空,一空一词(10%) A:What’sthe___________,Peter B:Ithink I’mgoingto_________amathtest,Dad. A:YouareWhy B:Well,I_________thebusandIhadtowalktoschool. A:So B:I’mnotallowedtogettoclass_________,andtherewasabigtesttoday. A:Andyou_________allowedtotakethetest. B:That’. A:Well,Peter,theschoolhastohave__________,youknow. IV.B:翻译下列句子(20%) 1.彻底打扫一次房间怎么样 Whatabout__________________theroom 2.约翰家有许多家规,彼得家也是这样。 . 3.当喜剧演员出场时,观众变得嘈杂起来。 Whenthecomedyactorscameout,theaudience_____________. 4.我没机会和她谈话。 I___________________________totalkwithher.

Unit3单元测试

译林英语五年级上册第三单元检测试题 班级:姓名: 听力部分(30分) 一、听录音选出你听到的单词。(听两遍)(8分) ( )1.A.swing B. woman C. wing ( )2.A.hard B. arm C. park ( )3.A.look B. foot C. forest ( )4.Aleg B. lake C. long ( )5.A,green B. grape C. give ( )6.A.mouth B. mother C. Monday ( )7.A.find B. give C. great ( )8.A.five B. fifty C. finger 二、听录音,根据所听短文内容判断下列句子是否正确,正确的用“T”,错误的 用“F”。(听两遍)(10分) ( )1.I have two animal friends. ( )2.They can run and jump ( )3.They have big eyes and big ears ( )4.They have long legs and long arms. ( )5.They have big tails. 三、听录音,补全对话。(听两遍)(12分) 1.--Does it have ? --No, it doesn’t. But it has a short . 2.--Are her long? --No, . 3.-- you have any animal friends? --Sure. 4. --Where is your ? --It’s on the .

2014八年级第十二章简单机械单元测试题

2014八年级第十二章简单机械单元测试题(含答案) 1.如图14所示,小明分别用甲滑轮、乙滑轮把重力相同的物体匀速提升到相同的高度,则( ) A.使用甲滑轮可以省力 B.使用乙滑轮可以改变力的方向 C.使用甲滑轮做的有用功多 D.使用乙滑轮的机械效率为100% 2.按照题目要求作图: (1) 要用滑轮组将陷在泥中的汽车拉出来,试在图中画出最省力的绕绳方法。 (2) 如图所示的曲棒,ABC可绕A点的转轴转动,请画出要使曲棒ABC在图中位置保持平衡时所需最小力的示意图。 3.用下列简单机械,使重力同为G的物体都保持静止状态,不计摩擦、机械自重及绳的重量,其中用最小的是( ) 4.如图l4所示,用沿竖直方向的绳子吊一光滑球靠在墙上,球处于静止状态。请画出小球的受力示意图。 5.如图(甲)、(乙)所示是由相同的滑轮组装的滑轮组,甲乙两人分别用两装置在相等时间内将质量相等的重物匀速提升相同的高度,空气阻力、摩擦、滑轮和绳子的质量均不计,下列说法正确的是:( ) A.甲的拉力是乙的拉力的3倍 B.甲拉力的功率大于乙拉力的功率 C.乙拉绳子的速度大小是甲拉绳子速度大小的2倍 D.如果考虑滑轮质量,图甲装置的机械效率比图乙的小 6.下列所示工具中,使用时不能省力但能省距离的是 () A.动滑轮B.订书机C.羊角锤D.镊子 7.电气化铁路的输电线常用如图4的方式悬挂在钢缆上。钢缆的A端固定在电杆上,B端通过滑轮组连接在电杆C上。 (1)配重D是3个混凝土圆盘,每个盘的质量是15kg。按图示的配置,钢缆在B端所受的拉力是N。(不计滑轮和钢缆的质量,g=10N/kg) (2)如果只考虑B端的牢固性,本来可以把它直接固定在电杆C上,也可以用一个很硬的大弹簧连接B和C。实际上却用滑轮组来连接,这样做的好处是,以保证措电器与输电线接触良好。 8.如图所示:用滑轮组拉动重500N的物体在水平支持面上以2m/s的速度做匀速直线运动,且物体所受摩擦力是物重的0.2 倍,问: (1)若不计机械自重及滑轮与轴之间的摩擦,则拉力F是多大? (2)若滑轮组的机械效率是90%,则F的大小是多大?(保留一位小数) (3)可见,使用滑轮组时可以省力不能省功,在物理学中这一原理称为。

人教版九年级数学《圆》单元测试题(含答案)

人教版九年级数学《圆》单元测试题题号一二三四五总分得分一、选择题(每题3分,共18分): 1.下列说法中,错误的是( )A.半圆是弧 B.半径相等的圆是等圆 C.过圆心的线段是直径 D.直径是弦 2.如图所示,点 A B C D E O AB=CD BE=DE D=128 、、、、都是上的点, ,,,则B D的度数为( ) A.128° B.126° C.118° D.116° 3.如图,在圆O 中,AE 是直径,半径OC 垂直弦AB 于D ,连接BE ,若AB=27CD=1 ,,则BE 的长为( )A.5 B.6 C.7 D.8 4.如图,AB 是圆O 的直径,弦,30,6CD AB CDB CD ^D=°=,则图中阴影部分的面积为( ) A.4p B.3p C.2p D.p 5.如图,AP 为O 的切线,P 为切点,若20,A D=°C 、D 为圆周上两点,且60PDC D=°则OBC D等于() A.55° B.65° C.70° D.75° 6.在平面直角坐标系中,以点O 为圆心,半径为4的圆与Y 轴交于点B ,点A (8,4)是圆外一点,直线AC 与圆O 相切于点C ,与X 轴交于点D ,则点C 的坐标是() A.(22,22)- B.128(,)55- C.(23,2)- D.1612(,)55 - (第2题)(第3题)(第4题)(第5题)(第6题) 二、填空题(每题3分,共18分): 7.已知圆锥的底面半径为3cm ,高为4cm ,则圆锥的侧面积是 . 8.边长为12cm 的圆内接正三角形的边心距是cm.

9.如图,A 、B 、C 、D 是圆O 上的四个点, .AOB=58BDC=AB BC =若,则度.10.如图,四边形ABCD 内接于O ,若 ABD=62C=122ADB ,,则的度数 是.11.如图,AB 为O 的直径,弦CD AB ^于点E ,已知CD=6EB=1,,则O 的半径是. 12.如图,直线1(0)2 y x a a =- +>与坐标轴交于A 、B 两点,以坐标原点O 为圆心,2为半径的O 与直线AB 相离,则a 的取值范围是. (第9题图)(第10题图)(第11题图)(第12题图) 三、解答题(每题10分,共60分): 13.如图,已知在以点O 为圆心的两个同心圆中,大圆的弦AB 交小圆于点C 、D. (1)求证:AC=BD ; (2)若大圆的半径R=10,小圆的半径r=8,且圆心到直线AB 的距离为6,求AC 的长. 14.如图,已知OA OB OC 、、是O 的三条半径,点C 是 AC 的中点,M N 、分别是OA OB 、的中点.求证:. MC NC =

(完整版)人教版五年级下册unit3测试题

五年级英语下册第三单元英语习题 一、找出不同类的单词,将序号填在括号里。(5分) ()1. A. holiday B. who C. which ( )2. A. birthday B. Children’s Day C. National Day ( )3. A. Monday B. Tuesday C. May Day ( ) 4. A Monday B. June C. March ( ) 5. A. April B. autumn C. August 二、读一读,判断划线部分读音相同写“T”否“F”。(5分) ( )1.A. class B. card C. March ( )2.A.China B. lunch C. child ( )3. A. rain B. April C. May ()4.A.fish B. sheep C. cheap ( )5. A. fly B. why C. July 三、按要求填空。(6分)X k B 1 . c o m 1. November______(缩写) 2. August________(缩写) 3. September______(缩写) 4. 一月____________(汉译英) 5.十二月_______(汉译英) 6.sports meet (英译汉) 四、选择填空。(12分) ()1.-- When is Tree Planting Day? --It’s ___________ March. A. at B. in C. on D. of ()2. ___________ is the first month of a year. A. February B. December C. October D. January ()3. ___________ is Children's Day? A. When B. What C. Which D. Why ( ) 4. ——What's the date? ——__________________.新课标第一网 A. In July B. April 4th C. March D. 9th ()5. ——Is your birthday in June? ——__________________. A. Yes, it is. B. Yes, it isn't. C. No, it isn't. D. No, it is. () 6. ——How old are you? ——I'm ______________. A. first B. twelve C. second D. fifth ()7. ——When is your birthday? ——It's in ____________. A. third B. January C. 20th D. 8:30 ()8.When _______ your birthday? 新|课|标|第|一| 网 A. am B. is C. are D. be ()9.My birthday is in July. Aunt Mary's birthday is in July,_________. A. either B. to C. too D. two ()10.——When is National Day? ——____________________. A. It's September 10th. B. It's March 12th.

unit3单元测试题

Unit 3 单元测试题 Ⅳ. 单项选择(每小题1分,共10分) ( )16. You can walk to ______ subway station. It’s not far. A. the B. a C. an D. 不填 ( )17. It’s easy for me ______ English. A. speak B. speaks C. to speak D. speaking ( )18. I ______ my bike to school every day. A. ride B. show C. drive D. stop ( )19. This hat is too old. I want a ______ one. A. clean B. long C. big D. new ( )20. It takes me 25 minutes ______ to the club by bus. A. to go B. going C. go D. goes ( )21. —______ is it from your home to the clothes store —Three kilometers. A. How far B. How long C. How much D. How old ( )22. There are no ______ now, so we can’t cross the river. A. boats B. cars C. trains D. subways ( )23. My brother and I ______ sports every day. I love ______ tennis, but he doesn’t. A. do; play B. do; to play C. does; play D. does; to play ( )24. —Does Mike always drive a car to the radio station —______. He goes there by bike. A. Yes, he does B. Yes, he is C. No, he isn’t D. No, he doesn’t ( )25. —Have a good time on the weekend. —______. A. You, too B. Yes, please C. Sounds good D. I’m not sure Ⅴ. 完形填空(每小题1分,共10分) Mike is 6 years old. 26 parents work in Beijing. They are very 27 and don’t have t ime to look after (照顾) him. Mike 28 with his grandparents in a small village. Mike’s parents work 29 a factory (工厂). They live far from the factory. 30 about 11 kilometers from their home to the factory. So they have to 31 early in the morning. They usually 32 home at half past six in the morning. They walk to the bus station and 33 the No. 10 bus to the subway station. Then they go to the factory by 34 . It takes them about an hour to go to work. The trip to their factory is really tiring (累人的), 35 they like their jobs very much. ( )26. A. His B. Her C. My D. Your ( )27. A. free B. busy C. interesting D. boring ( )28. A. helps B. plays C. lives D. talks ( )29. A. to B. with C. in D. from ( )30. A. It’s B. He’s C. She’s D. I’m ( )31. A. brush teeth B. eat C. get up D. exercise ( )32. A. lose B. leave C. get D. find ( )33. A. drive B. on C. take D. by ( )34. A. bus B. train C. car D. subway ( )35. A. because B. so C. but D. and Ⅵ. 阅读理解(每小题2分,共20分) A 易读度★☆☆☆☆ Bill is a teacher. He goes to work from Monday to Friday every week. Usually he gets up at six in the morning. After breakfast, he takes a bus to work. He is a . teacher, so he often plays sports with his students. He has classes every day. Two are in the morning and two are in the afternoon. In the evening he usually eats dinner at home and then he watches TV. He thinks he has a happy life. 根据材料内容判断正(T)误(F)。

简单机械单元测试题 含答案(word)

简单机械单元测试题含答案(word) 一、简单机械选择题 1.如图甲所示,是建筑工地上的塔式起重机示意图,它是通过电动机带动如图乙所示的滑轮组起吊物料的.如果这个滑轮组把6×103N的重物在10s内匀速提升l0m,绳索自由端的拉力F=2.1×103N,不计一切摩擦和绳重,则下列说法中正确的是 A.拉力做的功是2.1×104J B.拉力F的功率是2.1×103W C.该滑轮组的动滑轮共重300N D.该滑轮组的机械效率是80% 【答案】C 【解析】 由图乙知道,滑轮组绳子的有效股数是n=3,即绳子自由端移动的距离是: s=3h=3×10m=30m,所以拉力做的功是:W总=Fs=2.1×103 N×30m=6.3×104 J,故A错误;拉力做功的功率是:P=W总/t=6.3×104N/10s=6.3×103 W,故B错误;若不计绳重和摩擦,则由F=(G+G动)/n可知,动滑轮的总重是:G动 =nF-G=3×2.1×103 N-6×103 N=300N,故C正确;拉力做的有用功是:W有=Gh=6×103 N×10m=6×104 J,滑轮组的机械效率是:η=W有/W 4J/6.3×104J×100%≈95.2%,故D错误,故选C. 总×100%=6×10 2.关于机械效率的问题,下列说法中正确的是() A.做的有用功越多,机械效率一定越高B.单位时间内做功越多,机械效率一定越高 C.省力越多的机械,机械效率一定越高D.额外功在总功中所占比例越小,机械效率一定越高 【答案】D 【解析】 【详解】 A、做功多,有用功不一定多,有用功占总功的比例不一定高,所以机械效率不一定高,故A错误; B、有用功占总功的比例与单位时间内做功多少无关,故B错误; C、省力多的机械的机械效率往往偏低,故C错误; D、额外功在总功中所占比例越小,说明有用功在总功中所占的比例越大,机械效率就越高,故D正确;故选D. 【点睛】 ①总功=有用功+额外功;②有用功和总功的比值叫机械效率;③由机械效率的定义可知,机械效率的高低只与有用功在总功中所占的比例有关,与做功多少、功率大小无关. 3.山区里的挑夫挑着物体上山时,行走的路线呈“S”形,目的是 A.加快上山时的速度 B.省力

人教版九年级数学上册圆单元测试题及答案

九年级数学第二十四章圆测试题(A) 时间:45分钟分数:100分 一、选择题(每小题3分,共33分) 1 .若O O所在平面内一点P到O O上的点的最大距离为10, A . 14 B . 6 C . 14 或6 D. 7 或3 2. 如图24—A —1 , O O的直径为10,圆心O到弦AB的距离 A . 4 B . 6 C . 7 I 3. 已知点O ABC的外心,若/ A=80 A . 40 4. 如图 A . 20° B . 80 24—A — 2, B . C. 160° △ ABC内接于O 最小距离为 OM的长为 4则此圆的半径为( 3,则弦AB 的长是 D . 8 ,则/ BOC的度数为( D. 120° 若/ A=40 °,则/ OBC的度数为( O 图24—A — 4 图24—A — 3 小明同学设计了一个测量圆直径的工具, 垂直,在测直径时,把O点靠在圆周上, A . 12个单位 B . 10个单位 6. 如图 A . 80° 7. 如图 PB于点 A . 5 24—A —4, AB为O O的直径,点 B. 50° C. 40 ° 24—A —5, P 为O O 外一点, 5 .如图24—A —3, 标有刻度的尺子OA、OB在O点钉在一起, 读得刻度OE=8个单位,OF=6个单位,则圆的直径为( D . 15个单位 ,则/ A等于() 并使它们保持 ) PA 、 C、D,若PA=5,则△ PCD的周长为( B . 7 C . 8 D . 10 C . 1个单位 C 在O O 上,若/ B=60 ° D . 30° PB分别切O O于A、B, ) CD切O O于点E,分别交PA、 &若粮仓顶部是圆锥形,且这个圆锥的底面直径为 毡,则这块油毡的面积是() 4m,母线长为3m,为防雨需在粮仓顶部铺上油 A . 6m2 C . 12m22 D . 12二 m 9.如图24—A —6,两个同心圆,大圆的弦AB 点P,且 CD=13 , PC=4,则两圆组成的圆环的面积是( A. 16 n B . 36 n 10 .已知在△ ABC中, 10 A . 3 11.如图 C、D E、 C. 52 n AB=AC=13 , 与小圆相切于点P,大圆的弦CD经过) D. 81 n BC=10,那么△ ABC的内切圆的半径为( 12 B . 5 24—A —7,两个半径都是4cm的圆外切于点C, 一只蚂蚁由点A开始依A、B、 F、C、G A的顺序沿着圆周上的8段长度相等的路径绕行,蚂蚁在这 C. 2 径上不断爬行,直到行走2006 n cm后才停下来, A . D 点 B . E 点 C . F 点D 二、填空题(每小题3分,共30分) 12 .如图24—A —8,在O O中,弦AB等于O 则蚂蚁停的那一个点为( .G点 O的半径,0C丄AB交O O于点C,则 8段路 )

人教版三年级英语下册 Unit 3 第三单元测试卷及答案

小学英语人教三下Unit 3测试卷 听力部分 一、听录音,在相应的图片下打“√”。每小题听一遍。(10分) 1. A. B. 2. A. B. ()()()() 3. A. B. 4. A. B. ()()()() 5. A. B. ()() 二、听录音,判断下列图片与所听内容是(√)否(×)相符。每小题听两遍。(10分) ()1. ()2. ()3. ()4.

()5. 三、听录音,给下列句子标序号。每个句子听两遍。(10分)()It has a big body and a small head. ()And it has long legs. ()Come here, children! Look at the bird. ()It has a short tail. ()Wow! It’s so tall. 笔试部分 四、选出下列单词的对应词,只填序号。(8分) A. thin B. short C. tall D. small 1. big______ 2. short______ 3. long______ 4. fat______ 五、单项选择。(15分) ()1. Look ______ me! A. on B. at C. so ()2. I ______ big eyes and small ears. A. has B. with C. have ()3. The elephant ______ two big ears. A. have B. has C. is

()4. It has ______ long nose. A. a B. / C. an ()5. You ______ tall. I ______ short. A. are;is B. are;am C. is;am 六、根据句意,选择相应的图片。(15分) ()1. It has big ears and a long nose. A. B. ()2. It’s big and fat. A. B. ()3. It has a long tail and small ears. A. B. ()4. It’s tall and thin. A. B. ()5. It’s small. A. B.

人教版九年级数学上册圆单元测试题

第7题 A B O · C 初中数学试卷 第二十四章 单元测试题 姓名:__________ 班级:________ 等级: 一、选择题: 1、半径等于12的圆中,垂直平分半径的弦长为:( ) A .63 B 、312 C 、36 D 、318 2.如图,AB 是⊙O 的直径,∠ABC=30°,则∠BAC =( ) A .90° B .60° C .45° D .30° 3.如图,在⊙O 中,∠ABC=50°,则∠AOC 等于( ) A .50° B .80° C .90° D .100 4.如图,AB 是⊙O 的直径,∠ABC=30°,则∠BAC =( ) A .90° B .60° C .45° D .30° 5.圆内接四边形ABCD 中,∠A ∶∠B ∶∠C ∶∠D 可以是( ) A.1∶2∶3∶4 B.1∶3∶2∶4 C.4∶2∶3∶1 D.4∶2∶1∶3 6.下列命题错误.. 的是( ) A .经过三个点一定可以作圆 B .三角形的外心到三角形各顶点的距离相等 C .同圆或等圆中,相等的圆心角所对的弧相等 D .经过切点且垂直于切线的直线必经过圆心 7. 如图,两个同心圆的半径分别为3cm 和5cm ,弦AB 与小圆相切于点C A B O C 第2题图 第4题图 第3题图

则AB =( ) A .4cm B .5cm C .6cm D .8cm 8.以半径为1的圆内接正三角形、正方形、正六边形的边心距为三边作三角形, 则:( ) A.这个三角形是直角三角形 B.这个是钝角三角形 C .这个是等腰三角形 D.不能构成三角形、 9.如图P 为⊙O 外一点,PA 、PB 分别切⊙O 于A 、B , CD 切⊙O 点E ,分别交PA 、PB 于点C 、D ,若PA=5, 则△PCD 的周长为( ) A .5 B .7 C .8 D .10 10.如图,一块含有30°角的直角三角板ABC ,在水平 桌面上绕点C 接顺时针方向旋转到A ′B ′C ′的位置.若BC=15cm ,则顶点A 从开始到结束所经过的路径长为 . 二、填空题: 11.平面上一点P 到⊙O 上一点距离最长为6cm ,最短为2cm ,则⊙O 半径 12.如图,AB 是⊙O 的直径,点D 在⊙O 上,∠AOD=130°,BC ∥OD 交⊙O 于C , 则∠A= . 13.⊙O 的弦AB 长等于半径,则弦AB 所对的圆周角等于 14.在△ABC 中,∠A =50°,若O 为△ABC 的外心,则∠BOC= ; 若O 为△ABC 的内心,则∠BOC= . 15.已知正三角形的边长为23,则它的半径为 ;面积为 . 三、解答题: 16.如图AB 是⊙O 的直径,BC 是⊙O 的切线,OC 与⊙O 相交于点D ,连接AD 并 延长与BC 相交于点E 。 (1)取BE 的中点F ,连接DF ,请证明DF 为⊙O 的切线; 第12题 O C B D A

Unit 3 单元测试题 2

单元测试题 2 第二部分:阅读理解(共两节,满分40分) 第一节(共15小题;每小题2分,满分30分) 阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。 A Interviewer: Good morning to all our listeners. This morning I?m talking to Fran Mason, a clown (小丑) doctor. Ms Mason, what is a clown doctor? Ms Mason: Well, we a ren?t really doctors, and we just pretend to be doctors. We go to children?s hospitals and do all kinds of crazy things to make the sick children laugh. Interviewer: _____ Ms Mason: I wear a doctor?s white coat and I pretend to examine a little boy or girl, for example, but then I make funny faces. They love it! Interviewer: Does it help the children to get better? Ms Mason:Oh, yes. But we don?t give the children medicine. We think laughter is the best medicine. It?s very important for them to laugh, smile and enjoy themselves. Interviewer: How long have you been a clown doctor? Ms Mason: For three years. And before I became a clown doctor I taught at our local school for ten years. I really enjoy working with children but I wanted to do something a bit different. Interviewer: And how long have you worked in London? Ms Mason: I?ve worked here since last year. I worked as a clown doctor for a year in Australia, and then I came to London last December, for Christmas. I go to six different hospitals in London and I see a lot of kids and teenagers too. Interviewer: What do you enjoy most about the work you do? Ms Mason: Well, the best thing is seeing the children laugh. But I also love working with the doctors and nurses. Lots of them say they laugh too, when they see the children having fun. 21. Which of the following can be put in the blank in the text?

unit3weather单元测试卷

Unit3 Weather 一、从下列每组词汇中选出不同类的一项。 ( )1. A. rainy B. snowy C. swim D. windy ( )2. A. warm B. today C. hot D. cool ( )3. A. weather B. sunny C. cloudy D. snowy ( )4. A. London B. Beijing C. world D. New York 二、从下列每组单词中,选出一个画线部分的发音不同于其他三个的单词。( )1. A. farm B. warm C. car D. arm ( )2. A. tall B. ball C. far D. wall ( )3. A. bird B. first C. girl D. forty ( )4. A. cloudy B. outside C. soup D. about ( )5. A. music B. sunny C. lunch D. mum 三、按要求完成下列各题。(5分) 1. hot(对应词)____________ 2. cannot(缩写形式)____________ 3. sun (形容词)____________ 4. cool (对应词)____________ (形容词)____________ 1.__________ I have some soup 2. It’s _________. You can’t go outside. 3. Be___________! 4. It’s sunny. Can you_______ a kite with me 5. —What’s the_________ like today —It’s warm. 五、单项选择 ( )1. It’s warm ________ Hangzhou. A. up B. in C. of ( )2. I like watching the ________. A. a report B. report weather C. weather report ( )3. ________ some soup, Amy. A. To eat B. Have C. For

《简单机械》单元测试题(含答案)

《简单机械》单元测试题(含答案) 一、简单机械选择题 1.如图所示,用滑轮组提升重物时,重200N 的物体在5s 内匀速上升了1m.已知拉绳子的力F 为120N,如果不计绳重及摩擦,则提升重物的过程中 A .绳子自由端被拉下3m B .拉力F 做的功为200J C .滑轮组的机械效率是83.3% D .拉力F 的功率是40W 【答案】C 【解析】 【详解】 A 、物重由两段绳子承担,因此,当物体提升1m 时,绳子的自由端应被拉下2m ,故A 错误; B 、拉力为120N ,绳子的自由端应被拉下2m ,则拉力做功为: ,故B 错误; C 、滑轮组的机械效率,故C 正确; D 、拉力F 的功率,故D 错误. 故选C . 【点睛】 涉及机械效率的问题时,关键是要清楚总功、有用功、额外功都在哪,特别要清楚额外功是对谁做的功,弄清楚这些功后,求效率和功率就显得简单了。 2.如图是抽水马桶水箱进水自动控制的结构原理图,AOB 为一可绕固定点O 转动的轻质杠杆,已知:1:2OA OB =,A 端用细线挂一空心铝球,质量为2.7kg . 当铝球一半体积浸在水中,在B 端施加3.5N 的竖直向下的拉力F 时,杠杆恰好在水平位置平 衡.(33 2.710/kg m ρ=?铝,10/g N kg = )下列结果正确的是 A .该铝球空心部分的体积为33110m -? B .该铝球的体积为33310m -?

C .该铝球受到的浮力为20N D .该铝球受到的浮力为40N 【答案】C 【解析】 【分析】 根据密度的公式得到铝球实心部分的体积,根据杠杆的平衡条件得到A 端的拉力,铝球在水中受到的浮力等于重力减去A 端的拉力,根据阿基米德原理求出排开水的体积,从而得出球的体积,球的体积减去实心部分的体积得到空心部分的体积. 【详解】 铝球实心部分的体积:3333 2.71102.710/m kg V m kg m ρ -= = =??实, 由杠杆平衡的条件可得:F A × OA=F B ×OB ,2 3.571 A B OB F F N N OA ==?=, 铝球受到的浮力: 2.710/720F G F mg F kg N kg N N =-=-=?-=浮, 铝球排开水的体积:3333 20210110/10/F N V m g kg m N kg ρ-===???浮排水, 铝球的体积:3 3 3 3 22210410V V m m --==??=?球排, 则空心部分的体积:4 3 3 3 3 3 410110310V V V m m m ---=-=?-?=?空球实. 【点睛】 本题考查杠杆和浮力的题目,解决本题的关键知道杠杆的平衡条件和阿基米德原理的公式. 3.如图所示,用滑轮组在4s 内将重为140N 的物体匀速提升2m ,若动滑轮重10N ,石计滑轮与轴之间的摩擦及绳重。则在此过程中,下列说法正确的是 A .拉力F 为75N B .绳子自由端向上移动了4m C .滑轮组的机械效率约为93.3% D .提升200N 重物时,滑轮组机械效率不变 【答案】C 【解析】 【详解】 A . 由图可知,n =3,不计摩擦及绳重,拉力:

人教版六年级上册圆的单元测试题以及答案

最新人教版六年级上册圆的单元测试题以及答 案 https://www.wendangku.net/doc/e7439489.html,work Information Technology Company.2020YEAR

最新人教版六年级上册圆的单元测试题 一、填空。 1、圆的半径扩大3倍,直径扩大倍,周长扩大倍,面积扩大倍 2、两个圆的半径分别是3cm和5cm,它们的直径的比是,周长的比是,面积的比是。 3、一个圆的直径是6dm,那么它的半径是,周长是,面积是 4、圆的半径是4cm,它的直径是,周长是,面积是 5、一个圆的周长是18.84m,它的半径是,直径是,面积是 6、一个圆的面积是50.24cm2,它的半径是,直径 是,周长是 7、在一张长8厘米,宽12厘米的长方形纸上画一个最大的圆,这个圆的直径是,面积是,周长是。 8、一个环形的外圆直径是10cm,内圆直径是8cm,它的面积 cm2。 9、在一个边长8厘米的正方形里画一个最大的圆,这个圆的周长是厘米,面积是

14、一个圆的半径6分米,如果半径减少2分米,周长减少 分米,面积减少了 二、判断 1、圆心决定圆的位置,半径决定圆的大小。() 2、当圆的半径等于2分米时,这个圆的周长和面积相等。() 3、周长相等的两个圆,面积也一定相等. ( ) 4、同一个圆的直径一定是半径的2倍。() 5、两端都在圆上的线段,直径是最长的一条。() 6、半圆的周长是圆周长的一半。() 7、圆有无数条对称轴。() 8、圆的半径都相等。()

16、周长相等的长方形,正方形,圆,面积最大,面积最小 17、在一个边长是5分米的正方形铁皮中间剪去一个半径是2分米的圆片后,剩下平方分米的铁皮 三、选一选。 1、圆周率π()3.14。 A、大于 B、等于 C、小于 2、下面各图形中,对称轴最多的是()。 A、等腰三角形 B、正方形 C、圆 3、一个圆的周长是31.4分米,这个圆的面积是()分米2。 A、314 B、78.5 C、15.7 4、一个半圆,半径是r,它的周长是()。 A、πr + 2r B、πr π C、 4

相关文档
相关文档 最新文档