七年级下册英语期末试卷及答案大全

这篇关于七年级下册英语期末试卷及答案大全，是 无 特地为大家整理的，希望对大家有所帮助！ 第一部分 听力测试(25分)

一、听力(共20小题，1-15小题每题1分，16-20小题每题2分，共25分)

第一节： 听录音，从A、B、C三个选项中选择音标或者单词。

1. A. / kri / B. / k / C. / kraІ /

2. A. / ip / B. / tip / C. / dip /

3. A. / p / B. / bІ / C. / b /

4. A. thirty B. early C. clearly

5. A. character B. calculator C. cassette

第二节：听问句，选择正确的答语。

6. A. Yes, I do. B. Yes, I did. C. Yes, I was.

7. A. No, I don’t know. B. It is expensive. C. By ferry.

8. A. Yes, it was. B. Yes, I was. C. Yes, she is.

9. A. Yes, she is. B. Yes, they will. C. Yes, they are.

10. A. Have a good time! B. Why? C. Don’t go there.

第三节：听短对话，根据对话内容，选择正确答案回答问题。

11. What did Jim do last Sunday?

A. He went to the zoo. B. He stayed at school. C. He watched TV at home.

12. Which movie star does Sara like best?

A. Jackie Chan. B. Zhou Xun. C. Liu Dehua.

13. What is Peter’s uncle’s job?

A. A teacher. B. A worker. C. A doctor.

14. Where was Lingling last summer?

A. In Beijing. B. In Shanghai. C. In Chongqing.

15. When was Lily born?

A. On November 5, 1919. B. On November 20, 1990. C. On November 25, 1999.

第四节：听较长 对话，根据对话内容，选择正确答案回答问题。

听第一段对话，回答第16-17小题。

16. Which is Wang Mei’s favourite festival?

A. Chinese New Year. B. Mid-Autumn Festival. C. Dragon Boat Festival.

17. Why does she like it?

A. Because she can eat mooncakes.

B. Because she can get a lot of presents.

C. Because she can get some rice dumplings.

听第二段对话，回答第18-20小题。

18. Does the woman know the date of Father’s Day?

A. She is not sure. B. Yes, she does. C. No, she doesn’t.

19. What will the man buy for his father?

A. A watch. B. A shirt. C. A coat.

20. What does the woman think of the man’s idea?

A. It’s good. B. It’s boring. C. It’s bad.

第二部分 笔试(95分)

二、选择填空(共20小题，每小题1分，共20分)

21. 动词live的过去式为lived, 划线部分的读音为_______.

A. / d / B. / t / C. / Id /

22. There is no food in the kitchen. I’ll _______.

A. do some cle aning B. going cleaning C. do some shopping

23. September 10th is ______.

A. Women’s Day B. Teachers’ Day C. Labour Day

24. --_______ do you go to travel?

-- Once a year.

A. How long B. How many C. How often

25. Every one in our class is looking forward to ______Beijing.

A. visit B. visiting C. visited

26. Look! Linda _______ the bus over there.

A. waiting for B. waits for C. is waiting for

27. I often decorate my bedroom ____ beautiful pictures.

A. with B. for C. of

28. I am _______ in English, because it’s very _______.

A. interested; interesting B. interested; interested C. interesting; interested

29. He goes to school ______ every day.

A. ride a bike B. take a bike C. by bike

30. Basketball is ______ than gymnastics.

A. popular B. more popular C. the most popular

31. I am going to revise _______ my test.

A. with B. to C. for

32. She _______, but found nothing.

A. looked at B. looked around C. looked after

33. --Will there be many tall buildings in the city?

-- Yes, _______.

A. there will B. there won’t C. they won’t

34. --_______ is the population of your city?

-- About two million.

A. How B. What C. How much

35. The Changjiang River is the _______ river in China.

A. long B. longer C. longest

36. -- _______?

-- He is friendly and naughty.

A. What does he do B. What is he like C. How is he

37. --What food do you like best?

--Chicken. I always think it is ______.

A. friendly B. expensive C. delicious

38. -- Did you go to the park yesterday?

-- _______. We stayed at home.

A. No, we don’t B. No, we didn’t C. Yes, we did

39. _______ takes me half an hour _______ to school every day.

A. It; to go B. It; for going C. This; to go

40. -- I hope you’ll have a great holiday.

-- _______

A. Thank you. B. You are welcome. C. All right.

三、完形填空(共10小题，每小题1分，共10分)

Tony, you ask me about my country. Now I’ll 41 you something about it. China is a big country, and it is an old country in the world. It is in the 42 of Asia. 43 about 9,600,000 square kilometres(平方公里). And the 44 of China is about 1.3 billion (十亿). China is 45 than Japan, 46 smaller than Russia. There are 47 lakes, mountains and rivers in China. It’s famous 48 its long history.

Beijing is the 49 of China. There are many places of interest. The weather in Beijing is very 50 in summer, and very cold in winter. But there are still millions of visitors all over the world every year.

41. A. speak B. say C. tell

42. A. east B. south C. north

43. A. It B. Its C. It’s

44. A. history B. population C. shape

45. A. bigger B. big C. biggest

46. A. so B. but C. or

47. A. lots of B. lot of C. a lot

48. A. as B. for C. of

49. A. capital B. river C. hometown

50. A. cool B. warm C. hot

四、阅读理解(共15小题，每小题2分，共30分)

Do you know what people are doing in different places now? Let’s have a look.

Place: Paris

Time: 10:30

Name: Tom

Age: 13

Doing: Starting his math lesson Place: New York

Time: 14:30

Name: Mary

Age: 12

Doing: Having afternoon tea at home Place: London

Time: 9:30

Name: Tim

Age: 15

Doing: Eating hamburgers and drinking Coke in KFC

51. Where is Tim from?

A. China. B. America. C. England.

52. Who is taking classes at school now?

A. Mary. B. Tom. C. Tim.

53. If (如果) it is ten o’clock in the evening in Paris, what time is it in New York?

A. Two o’clock in the morning.

B. Three o’clock in the afternoon.

C. Five o’clock in the evening.

54. How old was Tom last y ear?

A. 12. B. 13. C. 14.

55. Which is Right?

A. Tim and Tom are sleeping now.

B. It is in the afternoon in New York now.

C. Mary is having dinner at home.

Hello, everyone. I’m a little rabbit(兔子). My name is Jim. I was born in a mountain five years ago. Yesterday was Saturday. It was my birthday. The weather was fine. But my parents were out. I had no sisters or brothers to play with, so I was not happy. Just at that time, the door of my bedroom was open. “Happy Birthday!” All my friends were in my bedroom with many presents for me. There was a cake from my best friend — little horse, some flowers from little pig ...

I was so happy. Then we were out to the garden to play. Oh, there was a bike under the tree. There was a piece of paper on it. It was from my parents. “Happy birthday to you, my son.” Oh, my parents were not out!

It was exciting to have such a great birthday party.

56. Which day is rabbit Jim’s birthday?

A. Friday. B. Saturday. C. Sunday.

57. How many people are there in Jim’s family?

A. 3. B. 4. C. 5.

58. What present did Jim get from his parents?

A. A cake. B. A book. C. A bike.

59. Which is TRUE according(根据) to the passage?

A. Jim has only two friends.

B. Jim is five years old now.

C. Jim’s parents bought him a piece of paper for his birthday.

60. What’s the best title for the passage?

A. A Great Birthday. B. A Nice Holiday. C. My Family.

Tara lives in England and she has a car. Helen lives in the USA and she has a car, too. Tara and Helen are drivers. They drive the cars very carefully.

There are many differences between their cars. Do you know the real differences? When Tara drives in England, she will drive on the left-hand. Everyone in England drives on the left. But Helen drives on the right, because Americans drive their cars on the right-hand side of the road.

Tara goes to work five days a week by car. She is a history teacher in a middle school. Her house is very far from her school. Every day she gets up early and drives to work. There are only some cars on the road because English people like to take a train. And Helen goes to work by car, too. She works only 3 days a week. She is a manager in a factory. It’s not very far from her home. But there are a lot of cars on the road. Americans like to go to work by car.

Tara gets home very late. She usually has supper at 8:00. Helen gets home at 5:00 and she has dinner at 6:30.

61. Tara is from _______.

A. America B. China. C. England

62. Americans drive their cars on the _________.

A. right B. bridge C. left

63. What does the underlined(画线的) word differences in the passage means ________.

A. 相同之处 B. 相似之处 C. 不同之处

64. From the passage, we know Tara is a _________.

A. manger B. teacher C. farmer

65. Which of the following is not true according to the passage?

A. Americans like to drive to work.

B. English people like to go to work by train.

C. Tara works three days a week.

五、任务型阅读(共5小题，每小题1分，共5分)

阅读短文，根据短文内容，完成下面表格。

What are they doing for holiday?

The weather is so nice. Mary and his friends are on holiday. They are in the park having a good time. Look! Mary is drawing pictures on the grass. Tom is fishing by the lake with Jesse. Jack is learning taking photos. Lucy and Lily are good at art, so they are dancing and singing under the tree. All of them are very happy!

A good time in the 66

Name Place Activities (活动)

Mary On the 67 Drawing

Jesse and 68 By the lake Fishing

Lucy and Lily 69 70

六、词汇与句型(每个空格1分，共20分)

A)根据句意及括号内所给的音标或汉语提示写出所缺单词, 每空一词。

71. I worked very hard on the _________ (/ fm /).

72. My mother is good at _________ (/ 'kkI /), so she often makes nice food for us.

73. I am writing a _________ (明信片) now.

74. Lingling’s grandmother is _________ (打扫) the floor now.

75. There are lots of old buildings and _________ (教堂) in Cambridge.

76. Table tennis is _________ (安全) than skiing.

77. Nobody can learn English _________ (迅速地) and speak it well without hard working.

78. I was _________ (出生) in a small village in Shanxi Province.

79. She opened her eyes, _________ (跳) out of bed and hurried out of the house.

80. _________ (五月) is the fifth month of the year.

B. 句型转换，按要求改写句子，每空一词。

81. They are playing basketball now. (就划线部分提问)

______ are they ______ now?

82. They are going to leave here tomorrow.(改为否定句)

They ______ ______ to leave here tomorrow.

83. Was Jim a student in 1998?(作肯定回答)

Yes, ______ ______.

84. I lived in a small village. (就划线部分提问)

______ ______ you live?

85. There will be a computer on every desk in the future. (改为一般疑问句)

Will ______ ______ a computer on every desk in the future?

七、书面表达(10分)

来自美国的Tony是你的新同学。周末他到你家做客，看到了你爷爷的照片，请根据表格内容，以“My grandfather”为题写一篇短文，向他介绍你的爷爷。

要求：

(1)可以对所给提示进行适当取舍，也可适当发挥;

(2)短文中不得出现真实的人名、地名和校名;

(3)词数60-90。

Birthday On March 3, 1945

Birthplace In a small town

In 1950 Moved to the city with his parents

In 1951 Started school

In 1965 Finished school

In 1966 Became a teacher

In 1970 Got married

In 1973 Had a baby

请注意大小写和标点符号，字母书写不符合相关规范或字迹潦草的要扣分。

My grandfather

_______________________________________________________________________

_______________________________________________________________________

七年级听力材料

第一节： 听录音，从A、B、C三个选项中选择音标或者单词。其中第1--3题为选择音标，第4--5题为选择单词。每个小题读一遍

1. cry 　　　 2. cheap 　　　3. bear 　　　4.early 　　　5. character

第二节：听问句，选择正确的答语。每个小题读一遍。

6 .Did you read the story Goldilocks?

7. How did you go there?

8. Was it your primary school?

9. Will Sally and Tony come to our house tonight?

10. I am going to Los Angeles.

第三节：听短对话，根据对话内容，选择正确答案回答问题。每段对话读一遍。

11. W: Jim, did you go to the park last Sunday?

M: No, I stayed at home and watched TV.

12. M: Sarah, do you like Jackie Chan?

W: Yes, he is my favourite movie star.

13. W: Does your uncle work in a hospital, Peter?

M: No, he doesn’t. He teaches English in a school.

14. M: Where did you go last summer, Lingling?

W: I went to Shanghai to see my grandpa.

15. M: When were you born, Lily?

W: I was born on November 25, 1999.

第四节：根据所听的较长对话，选择正确答案回答问题。每段对话读两遍。

听第一段对话，回答第16-17小题。

M: Hello, Wang Mei!

W: Hello, Luo Sang!

M: Which is your favourite festival?

W: I like Chinese New Year best.

M: Why do you like it?

W: Because I can get a lot of presents from my parents and friends.

听第二段对话，回答第18-20小题。

M: Hello, Maria! Do you know when Father’s Day is?

W: No, I don’t know.

M: Father’s Day is on the third Sunday in June. So I am going to buy a watch for my dad.

W: A nice watch would be a very good present.

M: What are you going to give to your father?

W: Let me see. I’ll also buy a watch for him and say “Happy Father’s Day!” to him.

M: Your father will be very glad if you do that.

W: I think so.

七年级参考答案

一、听力(1-15小题每题1分，16-20小题每题2分，共25分)

1-5 CBCBA 6-10 BCABA 11-15 CAABC 16-20 ABCAA

二、单项选择(每小题1分，共20分)

21-25 ACBCB 26-30 CAACB 31-35 CBABC 36-40 BCBAA

三、完形填空(每小题1分，共10分)

41-45 CACBA 46-50 BABAC

四、阅读理解(每小题2分，共30分)

51-55 CBAAB 56-60 BACBA 61-65 CACBC

五、任务型阅读(每小题1分，共5分)

66. park/holiday 67. grass 68. Tom 69. under the tree 70. dancing and singing

六、词汇句型(每个空格1分，共20分)

71. farm 72. cooking 73. postcard 74. cleaning/sweeping

75. churches 76. safer 77. quickly 78. born

79. jumped 80. May 81.What doing

82. aren’t going 83. he was

84. Where did 85. there be

七、书面表达(10分)

One possible version:

My grandfather was born on March 3, 1945 in a small town. He mo ved to the city with his parents when he was five years old. He started school in 1951, and finished school in 1965. He became a teacher at the age of 21.

My grandfather got married to my grandmother in 1970. They had their baby three years later. And the baby was my father.

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七年级上册期末考试试卷

辛劳的付出必有丰厚回报，寒窗苦读为前途，望子成龙父母情。祝你七年级数学期末考试取得好成绩，期待你的成功!我整理了关于七年级数学上册期末试题人教版，希望对大家有帮助!

七年级数学上册期末试题

一、选择题：每小题3分，共20分

1.﹣8的相反数是(　　)

A.﹣8 B.8 C. D.

2.下列计算结果，错误的是(　　)

A.(﹣3)×(﹣4)×(﹣ )=﹣3 B.(﹣ )×(﹣8)×5=﹣8 C.(﹣6)×(﹣2)×(﹣1)=﹣12 D.(﹣3)×(﹣1)×(+7)=21

3.1500万(即15000000)这个数用科学记数法可表示为(　　)

A.1.5×105 B.1.5×106 C.1.5×107 D.1.8×108

4.若多项式2x2+3y+3的值为8，则多项式6x2+9y+8的值为(　　)

A.1 B.11 C.15 D.23

5.下列方程中是一元一次方程的是(　　)

A.x+3=3﹣x B.x+3=y+2 C. =1 D.x2﹣1=0

6.用一副三角板不可以拼出的角是(　　)

A.105° B.75° C.85° D.15°

7.如果线段AB=6cm，BC=4cm，且线段A、B、C在同一直线上，那么A、C间的距离是(　　)

A.10cm B.2cm C.10cm或者2cm D.无法确定

8.钟表上的时间为晚上8点，这时时针和分针之间的夹角(小于平角)的度数是(　　)

A.120° B.105° C.100° D.90°

9.商场将某种商品按标价的八折出售，仍可获利90元，若这种商品的标价为300元，则该商品的进价为(　　)

A.330元 B.210元 C.180元 D.150元

10.指出图中几何体截面的形状(　　)

A. B. C. D.

二、填空题：每小题2分，共14分

11.化简：﹣[﹣(+5)]=　　　　　　.

12.已知|x+1|+(x﹣y+3)2=0，那么(x+y)2的值是　　　　　　.

13.小虎在写作业时不小心将墨水滴在数轴上，根据图中的数值，判断墨迹盖住的整数之和为　　　　　　.

14.同类项﹣ a3b，3a3b，﹣ a3b的和是　　　　　　.

15.若“★”是新规定的某种运算符号，设a★b=ab+a﹣b，则2★n=﹣8，则n=　　　　　　.

16.如图直线AB、CD相交于点E，EF是∠BED的角平分线，已知∠DEF=70°，则∠AED的度数是　　　　　　.

17.观察下列单项式的规律：a、﹣2a2、3a3、﹣4a4、…第2016个单项式为　　　　　　.

三、解答题

18.计算：

(1)|(﹣7)+(﹣2)|+(﹣3)

(2)42+3×(﹣1)3+(﹣2)÷(﹣ )2.

19.在数轴上表示下列各数，并用“<”号把它们连接起来.

1.5，0，﹣3，﹣(﹣5)，﹣|﹣4|

20.解方程：

(1) x﹣1=2

(2) = .

21.先化简，再求值：2(x3﹣2y2)﹣(x﹣2y)﹣(x﹣3y+2x3)，其中x=﹣3，y=﹣2.

22.如图，O为直线AB上一点，∠AOC=50°，OD平分∠AOC，∠DOE=90°.

(1)求∠BOD的度数;

(2)试判断∠BOE和∠COE有怎样的数量关系，说说你的理由.

23.如图，已知线段AB和CD的公共部分BD= AB= CD，线段AB、CD的中点E、F之间距离是10cm，求AB，CD的长.

24.某明星演唱会组委会公布的门票价格是：一等席600元;二等席400元;三等席250元.某服装公司在促销活动中组织获前三等奖的36名顾客去观看比赛，计划买两种门票10050元，你能设计几种购买价方案供该公司选择?并说明理由.

七年级数学上册期末试题人教版参考答案

一、选择题：每小题3分，共20分

1.﹣8的相反数是(　　)

A.﹣8 B.8 C. D.

【考点】相反数.

【分析】直接根据相反数的定义进行解答即可.

【解答】解：由相反数的定义可知，﹣8的相反数是﹣(﹣8)=8.

故选B.

【点评】本题考查的是相反数的定义，即只有符号不同的两个数叫做互为相反数.

2.下列计算结果，错误的是(　　)

A.(﹣3)×(﹣4)×(﹣ )=﹣3 B.(﹣ )×(﹣8)×5=﹣8 C.(﹣6)×(﹣2)×(﹣1)=﹣12 D.(﹣3)×(﹣1)×(+7)=21

【考点】有理数的乘法.

【分析】根据结果的符号即可作出判断.

【解答】解：A、(﹣3)×(﹣4)×(﹣ )=﹣(3×4× )=﹣3，正确;

B、(﹣ )×(﹣8)×5中负因数的分数为偶数，积为正数，故B选项错误;

C、(﹣6)×(﹣2)×(﹣1)=﹣(6×2×1)=﹣12，正确;

D、(﹣3)×(﹣1)×(+7)=3×1×7=21，正确.

故其中错误的是B.

故选：B.

【点评】本题主要考查的是有理数的乘法，掌握有理数的乘法法则是解题的关键.

3.1500万(即15000000)这个数用科学记数法可表示为(　　)

A.1.5×105 B.1.5×106 C.1.5×107 D.1.8×108

【考点】科学记数法—表示较大的数.

【分析】科学记数法的表示形式为a×10n的形式，其中1≤|a|<10，n为整数.确定n的值时，要看把原数变成a时，小数点移动了多少位，n的绝对值与小数点移动的位数相同.当原数绝对值>1时，n是正数;当原数的绝对值<1时，n是负数.

【解答】解：15000000=1.5×107，

故选 C.

【点评】此题考查了科学记数法的表示方法.科学记数法的表示形式为a×10n的形式，其中1≤|a|<10，n为整数，表示时关键要正确确定a的值以及n的值.

4.若多项式2x2+3y+3的值为8，则多项式6x2+9y+8的值为(　　)

A.1 B.11 C.15 D.23

【考点】代数式求值.

【专题】计算题;实数.

【分析】由已知多项式的值求出2x2+3y的值，原式变形后代入计算即可求出值.

【解答】解：∵2x2+3y+3=8，

∴2x2+3y=5，

则原式=3(2x2+3y)+8=15+8=23，

故选D

【点评】此题考查了代数式求值，利用了整体代换的方法，熟练掌握运算法则是解本题的关键.

5.下列方程中是一元一次方程的是(　　)

A.x+3=3﹣x B.x+3=y+2 C. =1 D.x2﹣1=0

【考点】一元一次方程的定义.

【分析】只含有一个未知数(元)，并且未知数的指数是1(次)的方程叫做一元一次方程.它的一般形式是ax+b=0(a，b是常数且a≠0).

【解答】解：A、x+3=3﹣x是一元一次方程，故A正确;

B、x+3=y+2是二元一次方程，故B错误;

C、 =1是分式方程，故C错误;

D、x2﹣1=0是一元二次方程，故D错误;

故选：A.

【点评】本题主要考查了一元一次方程的一般形式，只含有一个未知数，且未知数的指数是1，一次项系数不是0，这是这类题目考查的重点.

6.用一副三角板不可以拼出的角是(　　)

A.105° B.75° C.85° D.15°

【考点】角的计算.

【专题】计算题.

【分析】一副三角板各角的度数是30度，60度，45度，90度，因而把他们相加减就可以拼出的度数，据此得出选项.

【解答】解：已知一副三角板各角的度数是30度，60度，45度，90度，

可以拼出的度数就是用30度，60度，45度，90度相加减，

45°+60°=105°，

30°+45°=75°，

45°﹣30°=15°，

显然得不到85°.

故选：C.

【点评】此题考查的知识点是角的计算，关键明确用一副三角板可以拼出度数，就是求两个三角板的度数的和或差.

7.如果线段AB=6cm，BC=4cm，且线段A、B、C在同一直线上，那么A、C间的距离是(　　)

A.10cm B.2cm C.10cm或者2cm D.无法确定

【考点】两点间的距离.

【专题】分类讨论.

【分析】讨论：当点C在线段AB的延长线上时，AC=AB+BC;当点C在线段AB的上时，AC=AB﹣BC，再把AB=6cm，BC=4cm代入计算可求得AC的长，即得到A、C间的距离.

【解答】解：当点C在线段AB的延长线上时，如图，

AC=AB+BC=6+4=10(cm)，

即A、C间的距离为10cm;

当点C在线段AB的上时，如图，

AC=AB﹣BC=6﹣4=2(cm)，

即A、C间的距离为2cm.

故A、C间的距离是10cm或者2cm.

故选C.

【点评】本题考查了两点间的距离：两点间的线段的长叫两点间的距离.也考查了分类讨论思想.

8.钟表上的时间为晚上8点，这时时针和分针之间的夹角(小于平角)的度数是(　　)

A.120° B.105° C.100° D.90°

【考点】钟面角.

【专题】计算题.

【分析】由于钟表上的时间为晚上8点，即时针指向8，分针指向12，这时时针和分针之间有4大格，根据钟面被分成12大格，每大格为30°即可得到它们的夹角.

【解答】解：∵钟表上的时间为晚上8点，即时针指向8，分针指向12，

∴这时时针和分针之间的夹角(小于平角)的度数=(12﹣8)×30°=120°.

故选A.

【点评】本题考查了钟面角的问题：钟面被分成12大格，每大格为30°.

9.商场将某种商品按标价的八折出售，仍可获利90元，若这种商品的标价为300元，则该商品的进价为(　　)

A.330元 B.210元 C.180元 D.150元

【考点】一元一次方程的应用.

【分析】已知八折出售可获利90元，根据：进价=标价×8折﹣获利，可列方程求得该商品的进价.

【解答】解：设每件的进价为x元，由题意得：

300×80%﹣90=x

解得x=150.

故选D.

【点评】本题考查了一元一次方程的应用，属于基础题，关键是仔细审题，根据等量关系：进价=标价×80%﹣获利，利用方程思想解答.

10.指出图中几何体截面的形状(　　)

A. B. C. D.

【考点】截一个几何体.

【分析】用平面取截一个圆锥体，横着截时截面是椭圆或圆(截面与上下底平行).

【解答】解：当截面平行于圆锥底面截取圆锥时得到截面图形是圆.

故选B.

【点评】本题考查几何体的截面，关键要理解面与面相交得到线

二、填空题：每小题2分，共14分

11.化简：﹣[﹣(+5)]=　5　.

【考点】相反数.

【分析】根据多重符号化简的法则化简.

【解答】解：﹣[﹣(+5)]=+5=5.

【点评】本题考查多重符号的化简，一般地，式子中含有奇数个“﹣”时，结果为负;式子中含有偶数个“﹣”时，结果为正.

12.已知|x+1|+(x﹣y+3)2=0，那么(x+y)2的值是　1　.

【考点】非负数的性质：偶次方;非负数的性质：绝对值.

【分析】根据非负数的性质可求出x、y的值，再将它们代入(x+y)2中求解即可.

【解答】解：∵|x+1|+(x﹣y+3)2=0，

∴x+1=0，x﹣y+3=0;

x=﹣1，y=2;

则(x+y)2=(﹣1+2)2=1.

故答案为：1.

【点评】本题考查了非负数的性质：有限个非负数的和为零，那么每一个加数也必为零.

13.小虎在写作业时不小心将墨水滴在数轴上，根据图中的数值，判断墨迹盖住的整数之和为　﹣14　.

【考点】数轴.

【分析】根据题意和数轴可以得到被墨迹盖住的部分之间的整数，从而可求得墨迹盖住的整数之和.

【解答】解：根据题意和数轴可得，

被墨迹盖住的整数之和是：(﹣6)+(﹣5)+(﹣4)+(﹣3)+(﹣2)+1+2+3=﹣14，

故答案为：﹣14.

【点评】本题考查数轴，解题的关键是明确题意，利用数形结合的思想写出被遮住部分之间的所有整数.

14.同类项﹣ a3b，3a3b，﹣ a3b的和是　 a3b　.

【考点】合并同类项.

【分析】根据合并同类项系数相加字母及指数不变，可得答案.

【解答】解：﹣ a3b+3a3b+﹣ a3b= a3b，

﹣ a3b，3a3b，﹣ a3b的和是 a3b，

故答案为： a3b.

【点评】本题考查了合并同类项，合并同类项系数相加字母及指数不变是解题关键.

15.若“★”是新规定的某种运算符号，设a★b=ab+a﹣b，则2★n=﹣8，则n=　﹣10　.

【考点】解一元一次方程.

【专题】计算题;新定义;一次方程(组)及应用.

【分析】已知等式利用题中的新定义化简，求出解即可得到n的值.

【解答】解：利用题中的新定义化简得：2n+2﹣n=﹣8，

移项合并得：n=﹣10，

故答案为：﹣10

【点评】此题考查了解一元一次方程，弄清题中的新定义是解本题的关键.

16.如图直线AB、CD相交于点E，EF是∠BED的角平分线，已知∠DEF=70°，则∠AED的度数是　40°　.

【考点】角平分线的定义.

【分析】根据角平分线的定义求出∠DEB的度数，然后根据平角等于180°列式进行计算即可求解.

【解答】解：∵EF是∠BED的角平分线，∠DEF=70°，

∴∠DEB=2∠DEF=2×70°=140°，

∴∠AED=180°﹣∠DEB=180°﹣140°=40°.

故答案为：40°.

【点评】本题考查了角平分线的定义，平角等于180°，是基础题，需熟练掌握.

17.观察下列单项式的规律：a、﹣2a2、3a3、﹣4a4、…第2016个单项式为　﹣2016a2016　.

【考点】单项式.

【专题】规律型.

【分析】单项式的系数是正负间隔出现，系数的绝对值等于该项字母的次数，由此规律即可解答.

【解答】解：第2016个单项式为：﹣2016a2016，

故答案为：﹣2016a2016.

【点评】本题主要考查了单项式的有关知识，在解题时要能通过观察得出规律是本题的关键.

三、解答题

18.计算：

(1)|(﹣7)+(﹣2)|+(﹣3)

(2)42+3×(﹣1)3+(﹣2)÷(﹣ )2.

【考点】有理数的混合运算.

【分析】(1)先算绝对值符号里面的，再算加减即可;

(2)先算乘方，再算乘除，最后算加减即可.

【解答】解：(1)原式=9﹣3

=6;

(2)原式=16+3×(﹣1)﹣2×9

=16﹣3﹣18

=﹣5.

【点评】本题考查的是有理数的混合运算，熟知有理数混合运算的法则是解答此题的关键.

19.在数轴上表示下列各数，并用“<”号把它们连接起来.

1.5，0，﹣3，﹣(﹣5)，﹣|﹣4|

【考点】有理数大小比较;数轴.

【分析】把各数在数轴上表示出来，从左到右用“<”号连接起来即可.

【解答】解：如图所示，

故﹣|﹣4|<﹣3<0<1.5<﹣(﹣5).

【点评】本题考查的是有理数的大小比较，熟知数轴上右边的数总比左边的大是解答此题的关键.

20.解方程：

(1) x﹣1=2

(2) = .

【考点】解一元一次方程.

【专题】计算题;一次方程(组)及应用.

【分析】(1)方程去分母，移项合并，把x系数化为1，即可求出解;

(2)方程去分母，去括号，移项合并，把x系数化为1，即可求出解.

【解答】解：(1)去分母得：x﹣2=4，

解得：x=6;

(2)去分母得：3(3y﹣1)﹣12=2(5y﹣7)，

去括号得：9y﹣3﹣12=10y﹣14，

移项合并得：y=﹣1.

【点评】此题考查了解一元一次方程，熟练掌握运算法则是解本题的关键.

21.先化简，再求值：2(x3﹣2y2)﹣(x﹣2y)﹣(x﹣3y+2x3)，其中x=﹣3，y=﹣2.

【考点】整式的加减—化简求值.

【分析】首先化简，进而合并同类项进而求出代数式的值.

【解答】解：2(x3﹣2y2)﹣(x﹣2y)﹣(x﹣3y+2x3)

=2x3﹣4y2﹣x+2y﹣x+3y﹣2x3，

=4y2﹣2x+5y，

∵x=﹣3，y=﹣2，

∴原式=﹣4y2﹣2x+5y=﹣4×(﹣2)2﹣2×(﹣3)+5×(﹣2)=﹣20.

【点评】此题主要考查了整式的加减运算，正确合并同类项是解题关键.

22.如图，O为直线AB上一点，∠AOC=50°，OD平分∠AOC，∠DOE=90°.

(1)求∠BOD的度数;

(2)试判断∠BOE和∠COE有怎样的数量关系，说说你的理由.

【考点】角的计算;角平分线的定义.

【分析】(1)根据角平分线的定义，邻补角的定义，可得答案;

(2)根据角的和差，可得答案.

【解答】解：(1)由角平分线的定义，得

∠AOD=∠COD= ∠AOC= ×50°=25°.

由邻补角的定义，得

∠BOD=180°﹣∠AOD=180°﹣25°=155°;

(2)∠BOE=∠COE，理由如下：

由角的和差，得

∠BOE=∠BOD﹣∠DOE=155°﹣90°=65°，

∠COE=∠DOE﹣∠COD=90°﹣25°=65°，

则∠BOE=∠COE.

【点评】本题考查了角的计算，利用角的和差是解题关键.

23.如图，已知线段AB和CD的公共部分BD= AB= CD，线段AB、CD的中点E、F之间距离是10cm，求AB，CD的长.

【考点】两点间的距离.

【专题】方程思想.

【分析】先设BD=xcm，由题意得AB=3xcm，CD=4xcm，AC=6xcm，再根据中点的定义，用含x的式子表示出AE和CF，再根据EF=AC﹣AE﹣CF=2.5x，且E、F之间距离是10cm，所以2.5x=10，解方程求得x的值，即可求AB，CD的长.

【解答】解：设BD=xcm，则AB=3xcm，CD=4xcm，AC=6xcm.

∵点E、点F分别为AB、CD的中点，∴AE= AB=1.5xcm，CF= CD=2xcm.

∴EF=AC﹣AE﹣CF=6x﹣1.5x﹣2x=2.5xcm.∵EF=10cm，∴2.5x=10，解得：x=4.

∴AB=12cm，CD=16cm.

【点评】本题主要考查了两点间的距离和中点的定义，注意运用数形结合思想和方程思想.

24.某明星演唱会组委会公布的门票价格是：一等席600元;二等席400元;三等席250元.某服装公司在促销活动中组织获前三等奖的36名顾客去观看比赛，计划买两种门票10050元，你能设计几种购买价方案供该公司选择?并说明理由.

【考点】一元一次方程的应用.

【分析】可分为购买一等席和二等席;一等席和三等席;二等席和三等席位三种情况，然后根据门票总数为36张，总费用为10050元，列方程求解即可.

【解答】解：①设购买一等席x张，二等席(36﹣x)张.

根据题意得：600x+400(36﹣x)=10050.

解得：x=﹣21.75(不合题意).

②设购买一等席x张，三等席(36﹣x)张.

根据题意得：600x+250(36﹣x)=10050.

解得：x=3.

∴可购买一等席3张，二等席位33张.

③设购买二等席x张，三等席(36﹣x)张.

根据题意得：400x+250(36﹣x)=10050.

解得：x=7.

∴可购买二等席7张，二等席位29张.

答;共有2中方案可供选择，方案①可购买一等席3张，二等席位33张;方案②可购买二等席7张，二等席位29张.

【点评】本题主要考查的是一元一次方程的应用，根据门票的总张数为36张，总票价为10050元分类列出方程是解题的关键.

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