Jiaxing 20 10 seventh grade mathematics final examination paper (that is, the year before last) Zhejiang Education Edition seeks for the answer.

20 11-2012 Review of the seventh grade mathematics test questions at the end of the first semester of the school year (Beijing Normal University Edition) (01).

Proposer: Famen No.1 Middle School Yaolian Province

First, multiple-choice questions (each question has only one correct answer, each question has 3 points, ***2 1 point)

1. Which of the following geometries cannot have a rectangular section (D)?

A. cuboid B. cube C. cylinder D. cone

2. On the calendar, the sum of three numbers in the same column cannot be (c).

a . 27b . 33c . 40d . 5 1

Xiao Ming did the following four calculation problems:

⑴ ⑵ ⑶ ⑷

Please check it for him. He did the right thing.

A. 1 question B.2 question C.3 question d.4.

Xiaoming bought a football at a 20% discount in order to save money in 25 yuan, so the original price of this football was (D) yuan.

a . 3 1.25 b . 60c . 100d . 125

There are 50 students in Class 3, Grade 7 in a school. Now investigate the students' favorite ball games and make a fan-shaped statistical chart according to the survey results, as shown in the figure. According to the information provided by the fan-shaped statistical chart, the following conclusions are drawn:

① The number of people who like football best is15;

② The number of people who like badminton best is the least, only five;

③ The number of people who like volleyball best is 3 less than that who like table tennis best;

The number of people who like table tennis best is 6 more than that who like basketball best.

Among them, the correct conclusion is (D)

A. 1

6. In, 1.2, -2, 0, -(-2), the number of negative numbers is (a).

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

7. In the following events, the inevitable event is (b)

A. turn on the TV, the news is playing. The mother is older than her son.

C. through long-term hard study, you will become a mathematician D. on rainy days, everyone takes an umbrella.

Fill in the blanks (3 points for each small question, ***2 1 point)

8. If one side of a rectangle is 2 and the other side is longer than it, the perimeter is 10a-2b.

9. Randomly draw two cards from four cards of the same size, and the event that "the two cards drawn are not in the same category" is an inevitable event.

10. If it is known that it is a similar project, the value of is.

1 1. As the picture shows, the students are going to visit the museum, from school A to museum B.

Path * * * has (1), (2) and (3). In order to save time, get it from a as soon as possible.

At point B, assuming the walking speed is constant, do you think the first line should be taken?

The fastest way (just fill in the numbers) is because.

12."5? 12 After the Wenchuan earthquake, CCTV held a "Giving Love" party on May 18, and * * raised about1514 million yuan, which was expressed by scientific notation.

13. Xiaoming gets home at 5: 30 every afternoon, when the angle between the hour hand and the minute hand is degrees.

14.

III. Calculation problems (4 points for 15, 16, 17, 18, 10, 5 points, * * 23 points)

15. 16.

17. Simplify first and then evaluate.

One of them is.

4. Answer questions (8 points for 19 and 20 items, 9 points for 2 1 item, 22 points for 10, and 35 points for * * *).

18. Solve the equation. ( 1) (2)

19. As shown in the figure, it is the bisector of a point on a straight line.

(1).

(2) Try to judge the positional relationship of sum.

20. A survey was conducted among 50 students in a class, and the following table was obtained:

Favorite sports: football, basketball, table tennis and badminton.

Number of people (frequency) 30 25 40 20

(1) Calculate the percentage of people who like all kinds of sports in the class;

(2) Can the above percentages be represented by a fan-shaped statistical chart? And explain why.

(3) If you want to express the above data, what statistical chart can you choose? Please draw this picture.

2 1. Xiaoyu is playing tricks with black chess. The following patterns have now been placed. Please complete the following questions according to the information in the picture.

(1) In the first pattern, a Go is used, in the second pattern, and in the third pattern, a Go is used.

(2) If Xiao Yuqing continues to let Go, then the first pattern will use a GO.

(3) If Xiao Yuqing happens to have 90 Weiqi pieces in his hand, he will put them down from a pattern according to this rule. Can he put them together into a complete pattern, and there are just 90 Go pieces left? If you can, just put a few complete patterns? If not, at most, a few complete patterns can be played, and how many Go pieces are left? (Only answer the result, not the reason)

22. A "Hope School" has built a four-story teaching building with six classrooms on each floor. There are three doors (two front doors and a side door of the same size) in and out of the building. During the safety inspection, these three doors were tested: when a front door and a side door are opened at the same time, 400 students can pass through in 2 minutes, and if a front door can pass through 40 more students per minute on average than a side door.

(1) How many students can pass through a main entrance and a side door every minute on average?

(2) During the inspection, it was found that the efficiency of going out was reduced by 20% due to crowded students in an emergency. According to the safety inspection regulations, in case of emergency, students in the whole building should be evacuated safely through these three doors within 5 minutes. Suppose there are at most 45 students in each classroom of this teaching building. Q: Do the three doors meet all the requirements? Why?

Fufeng Famen No.1 Middle School 20 1 1-20 12 review at the end of the first semester.

The seventh grade math test questions (Beijing Normal University Edition) (0 1) reference answers

First, multiple-choice questions (each question has only one correct answer, each question has 3 points, ***2 1 point)

Title 1 234 567

Answer d c c d a b

Fill in the blanks (3 points for each small question, ***2 1 point)

8.； 9. inevitable events; 10.4; 1 1.② Between two points, the line segment is the shortest;

12.； 13. 15 ; 14. 1.

III. Calculation problems (4 points for 15, 16, 17, 18, 10, 5 points, * * 23 points)

15. solution: the original formula =-2 16. Solution: The original formula =-3+8-6-8 =-9.

17. Solution: Original formula = = When x=-3, the original formula =3×9-5=22.

18.( 1) Solution:

(2) Solution:

4. Answer questions (8 points for 19 and 20 items, 9 points for 2 1 item, 22 points for 10, and 35 points for * * *).

19. solution: (1) ≈ AOC+∠ BOC =180 ∠ AOC = ∠ BOC.

∴∠ AOC = ×180 = 45 oc ∠ AOD bisector ∴∠cod =∠AOC = 45°.

(2) From (1), it is known that ∠ COD = ∠ AOC = 45 ∴ ∠ AOD = 90 ∴ OD ⊥ AB.

20. Solution: (1) percentages are 60%, 50%, 80% and 40% respectively.

(2) No, because some students may like more than one project, and some students may not like any of these projects, so you can't use a fan chart. (3)

2 1. Solution: (1) 3 6 10 (2)

(3) No, just put six complete patterns, and there are seven pieces left.

22. Solution: (1) A main entrance can pass X students every minute on average, and a side door can pass every minute.

Pass (x-40) students 2x+2(x-40)=400.

4x=480 x= 120

∴x-40= 120-40=80 A: Omitted.

(2) There are 45×6×4= 1080 students in the teaching building.

Students can go through three security doors in five minutes: (120× 2+80 )× (1-20% )× 5 =1280 >1080.

So these three doors meet the safety regulations.

Review of the seventh grade math test questions at the end of the first semester of Fufeng Method No.1 Middle School 201-2012 (Beijing Normal University Edition) (02)

Proposer: Famen No.1 Middle School Yaolian Province

First, you can definitely choose the right one! (There is only one correct option for each question, with 3 points for each question and 30 points for * * *).

1. Among the following logarithms, the one with equal value is ().

(a) and (b) and (c) and (d) and

2. The following figures cannot be folded into cubes ().

(A) (B) (C) (D)

3. In the following statement, it is correct that () (a) a straight line is longer than a ray (b) two straight lines can be drawn after a point (c) a right angle is a straight line (d) two straight lines intersect with only one intersection point.

4. According to the bar chart below, the correct answer is ()

(a) At least 90 people walk.

(b) The number of people walking is 50.

50% people take buses.

There are about the same number of people walking and cycling.

Fewer people take the bus.

5. The following statement about merging similar items is correct ()

(A)3x+2 x2 = 5x 3(B)2a2b-a2b = 1

(C)-a b-ab = 0(D)-y2x+x y2 = 0

6. There is a teapot on the table, and four students look from their respective directions. Please point out which student saw the four pictures on the right side of the physical picture from left to right ()

(A)①②③④(B)①③②④(C)②④①③(D)④③①②

7. The following events, the inevitable event is ()

It will rain tomorrow. Xiaoming got 99 points in the math exam.

8. On New Year's Day holiday, department stores sell a certain commodity at a 20% discount on the basis of the marked price for promotion, and still make a profit 160 yuan. If the price of the goods is 2200 yuan, then its cost is ().

9. Solve the equation and remove the denominator to get ()

(A) (B)

10. Assume that rational numbers A and B respectively represent points on the number axis as shown in the figure, and the correct one in the following formula is ().

(A)a+b>0

(C)a-b>0 (D)a？ b>0

Second, can you fill it out quickly and accurately? (3 points for each small question, ***30 points)

The reciprocal of 1 1. -3 Yes

12. Calculation: (-36) ÷ 9 =

13. The point outside the straight line is the shortest point among all the line segments connected with the points on the straight line.

14. in equation 2x-m = 5, when x = 1, m =

15.2007 10.24, Beijing time10, "Chang 'e I" was successfully launched from xichang satellite launch center. It flies around the moon at a height of 200 kilometers from the surface of the moon, and its nearest place to the earth is 384400 kilometers. 384,400 km = km in scientific notation.

16. As shown in the figure, oc divides ∠AOB equally. If ∠ AOB = 45,

Then ∠BOC =

17. The difference between the polynomial x-y minus -x+3y is

Day one two three four five six

1 2 3 4 5

6 7 8 9 10 1 1 12

13 14 15 16 17 18 19

20 2 1 22 23 24 25 26

27 28 29 30 3 1

18. Circle any vertical column adjacent to it in the calendar on the right.

Suppose the middle number is a, then these three numbers

The sum of numbers is (expressed by algebraic expression with a)

19. There are 54 students in Class * * * of Grade One, including boys.

There are 30 students and 24 girls. If you look for any student in this class, you are more likely to find a boy than a girl (fill in "big" or "small").

20. For the algebraic expression "5x", we can explain it as follows: someone walks at a speed of 5 km/h for x hours, and the distance he walks is 5 km. Please give another practical explanation of "5x":

Third, please calculate and do it. Don't make any mistakes! (***60 points)

2 1. Calculation: (5 points for each small question, *** 10)

( 1) (2)

22. Solve the equation: (5 points for each small question, *** 10)

( 1) (2)

23. (6 points in this small question) Simplify first and then evaluate: Among them.

24. Since 1980s, China sports delegation has achieved good results in all previous Asian Games, ranking first in Asia in gold medals for six consecutive years. The following table lists the number of gold medals won by our delegation in the past six Asian Games:

Number of sessions

time

Scene 10

1986

The 11th Seoul, Korea

1990

The 12th China Beijing.

1994

13rd Hiroshima, Japan

1998

14th Bangkok, Thailand

2002

15th Busan, Korea

2006

Doha Qatar

The number of gold medals is 94183137129150165.

(1) Please make a broken line statistical chart according to the above table.

(2) What conclusions can be drawn from the statistical chart you drew? Tell me your reasons.

25. (8 points in this small question) Solve the problem:

A rectangular table can seat six people. Put these tables together as shown in the figure below.

……

(1) Two tables can sit together. Three tables can sit together,

..... n tables can sit together.

(2) A restaurant has 40 such rectangular tables. If every 5 tables are combined into a 1 big table as shown in the above figure, then 40 tables can be combined into 8 big tables, which can seat people.

26. Knowledge is used to serve mankind, and we should use it meaningfully. Please judge the following two situations:

Situation 1: From the classroom to the library, there are always several students crossing the lawn instead of taking the sidewalk. Why? Try to explain this problem with mathematical knowledge.

Scenario 2: A and B are two villages along the L River. Now a pumping station will be built along the river to supply water to these two villages. Where can the pumping station be built to minimize the required pipelines? Please point out the location of pump station P in the picture and explain your reasons:

Which of the above practices do you agree with? What do you think should be paid attention to when applying mathematical knowledge to serve mankind?

27. (This little question is 10) A classmate found that the unit price of his favorite walkman is the same in two supermarkets, A and B, and the unit price of his schoolbag is the same. The sum of the unit price of the walkman and the schoolbag is 452 yuan, and the unit price of the walkman is 4 times less than that of the schoolbag unit. 8 yuan.

(1) What is the unit price of the walkman and schoolbag that students like?

(2) One day, the students went out to the street just in time for the merchant's promotion, and all the goods in Supermarket A were 20% off. Supermarket B returned the shopping vouchers to 30 yuan for sale when the total shopping cost was more than 100 yuan (less than 100 yuan, which is common for shopping vouchers), but he only brought 400 yuan money. If he only bought these two things in one supermarket, can you explain which one he would choose to buy? If both companies can choose, which one is more economical to buy?

Fufeng County Famen No.1 Middle School 2011-2012 Review the seventh grade math test questions at the end of the first semester of the school year (Beijing Normal University Edition) (02) Reference answers.

First, you can definitely choose the right one! There is only one correct option for each small question, with 3 points for each question and 30 points for * * *.

1.B 2。 D 3。 D 4。 C 5。 D

6. A seven. C 8。 A nine. B 10。 B

Second, can you fill it out quickly and accurately? (3 points for each small question, ***30 points)

11.312.-413. Longitudinal section 14. -3 15.3.844× 105.

16 . 22 . 5 17.2 x-4y 18.3 a 19。 Big 20. Go to the store to buy five books, each book is priced at X yuan, and a * * * pays 5 yuan. (The answer is not unique, as long as it meets the actual requirements)

Third, please calculate and do it. Don't make any mistakes! (***60 points)

2 1. Calculation: (5 points for each small question, *** 10)

22. Solve the equation: (5 points for each small question, *** 10)

23. (6 points for this small question)

Answer: = =

When =-2- 1 =-3

24. (8 points for this small question) (1) The statistical chart of broken lines is as follows:

(2) From the broken line statistics, it can be seen that the total number of gold medals of China sports delegation in the last six Asian Games has been steadily rising, and it is becoming more and more global. (The answer is not unique)

25. (8 points for this short question)

(1)8 people, 10 people, 4+2n.

(2)8(4+2n), when n=5, we get 1 12 people.

26. (8 points for this short question)

Solution: Scenario 1: Of all the connecting lines between two points, the line segment is the shortest.

Scene 2: (You need to draw a picture to indicate the position of point P)

Reason: Of all the connecting lines between two points, the line segment is the shortest.

Agree with the use of knowledge in scenario 2.

Slight reasons (according to the situation, as long as the point of view is correct, you can score).

27. (This little question is 10)

Solution: (1) If the unit price of the schoolbag is X yuan, then the unit price of the walkman is (4x-8) yuan.

According to the meaning of the question, 4x-8+x = 452, solve this equation x=92.

4x-8 = 4x92-8 = 360 (yuan)

(2) Cash required for supermarket A to purchase walkman and schoolbag: 452×80%=36 1.6 yuan.

Because 36 1.6

In supermarket B, you can spend 360 yuan to buy a walkman first, and then use the 90 yuan coupon you get.

Plus 2 yuan's cash to buy schoolbags, the total cash cost is 360+2=362 yuan.

Because 362

Because 362 >; 36 1.6, so it's cheaper to buy in supermarket a.

Answer: (1) The unit prices of walkman and schoolbag are 360 yuan and 92 yuan respectively;

(2) It is more economical to buy in supermarket A. ..

Review of the seventh grade math test questions at the end of the first semester of Fufeng Fa Men No.1 Middle School 201-2012 (Beijing Normal University Edition) (03)

Proposer: Famen No.1 Middle School Yaolian Province

First, you can definitely choose the right one! (There is only one correct option for each question, with 3 points for each question and 30 points for * * *).

The absolute value of 1.4 is ()

A. the fourth century BC

2. The reciprocal of a number is its own number ()

a . 1 b .- 1 c

3. It is known that the land area on the earth is about149 million square kilometers, and the land area on the earth is about () square kilometers calculated by scientific notation.

A. 1.49× 108

4. The following figure can't form a cube is ()

5. The following calculation is correct ()

A.B.2a+3b=5ab

c . 7ab-3ab = 4d。

6. The following brackets are correct ()

A.B.

C.D.

7. As shown in the figure, ∠AOC and ∠DOB are right angles, if

∠AOB =, then ∠DOC = ()

A.B.

C.D.

8. The equation takes the denominator as the unit, and the correct one is ().

A.B.

C.D.

9. The following events, you think the inevitable event is ().

A. turn on the TV. There is an advertisement.

Today is Monday and tomorrow is Tuesday.

C. On the first day of the first month of this year, the weather in Shuangbai must be sunny.

D. One bag contains 1 white ball and 9 red balls. Every ball is the same except the color. Pick any red ball.

10. If the perimeter of a rectangle is 10 and the length is a, then its width is ().

a 10-2a b 10-a c . 5-a d . 5-2a

Second, can you fill it out quickly and accurately? (3 points for each small question, ***30 points)

The reciprocal of 1 1. -Five. Yes.

12. A temperature rise of 2 degrees is +2 degrees, and a temperature drop of 6 degrees is recorded.

13. The coefficient of algebraic expression -2xy is.

14. Calculation: (-5)-(-5) =.

15. Calculation: 90-42 2 1'=.

16. it is known that x=3 is the solution of the equation AX-6 = A+ 10, then A =.

17. When paving the floor with square bricks, the master often hits two wooden stakes first, and then lays bricks along the tight line to make the floor tiles neatly laid. This fact illustrates such a principle.

18. The picture shows the "Rejoice" shampoo in Tiantianle Supermarket.

Price tag, please fill in its original price on the horizontal line.

19. In the turntable as shown in the figure, it means that in a table tennis match,

The possibility of Xiao Ming and Xiao Liang winning, turn the turntable,

When the pointer stops turning, falling in the shaded area may

Sex (fill in "big" or "small").

20. Cut the geometry with a plane. If the cross section is circular,

Can you imagine that the original geometry might be?

Third, please calculate and do it. Don't make any mistakes!

(***60 points)

2 1. Calculation: (5 points for each small question, *** 10)

( 1) (2)

22. Solve the equation: (5 points for each small question, *** 10)

( 1) (2)

23. (6 points for this small question)

Simplify first, then evaluate:, where a =- 1 and b = 1.

24. (6 points for this small question)

As shown in the figure, it is a pattern composed of six cubes. Please draw its front view, left view and top view on the grid paper respectively.

25. (8 points in this small question) Mathematics and life!

26. (This small problem is 10) Problem solved!

The following table shows the students of Class 7 (1) in a middle school asking, "Will you take the initiative to help your parents do housework after school?" Please present the survey results with a fan-shaped statistical chart as required.

number of people

Take the initiative to do housework 18

Do housework occasionally 12

Do not do housework 10

(1) Calculate the percentage of all kinds of people and the degree of central angle of each sector, and fill in the following table:

Take the initiative to do housework, and occasionally do housework without doing housework.

per cent

Center angle

(2) Make a fan-shaped statistical chart, mark the corresponding categories and percentages, and write the name of the statistical chart.

27. (This little question is 10) Challenge yourself!

The picture below shows some patterns made of matchsticks.

……

① ② ③

(1) The first pattern uses match sticks, the second pattern uses match sticks, and the third pattern uses match sticks.

(2) How many matchsticks were used to place the nth pattern in this way?

(3) Calculate the pattern when placing 12 1 matchstick.

First, you can definitely choose the right one! There is only one correct option for each small question, with 3 points for each question and 30 points for * * *.

1.D 2。 C 3。 A 4。 C 5。 A

6.C 7。 An eight. B 9。 B 10。 C

Second, can you fill it out quickly and accurately? (3 points for each small question, ***30 points)

1 1.5 12.-6 13.-2 14.0 15.47 39′ 16.8

17. There is only one straight line after two o'clock 18.24 yuan 19. Twenty years younger. Spherical, cylindrical or frustum.

Third, please calculate and do it. Don't make any mistakes! (***60 points)

2 1. Calculation: (5 points for each small question, *** 10)

22. Solve the equation: (5 points for each small question, *** 10)

23. (6 points for this small question)

Solution: Original formula =

When a =- 1 and b = 1,

24. (6 points for this small question)