1. This test paper is ***6 pages, with 6 major questions and 27 minor questions, with full marks of 100 and examination time of 120 minutes.
2. Before answering questions, candidates must write down their names, admission ticket numbers, etc. In the designated position of the test paper sealing line.
3. When the candidates answer questions, whether they are multiple-choice questions or non-multiple-choice questions, they must answer in the position specified in this paper.
Please fill in the answers to multiple-choice questions on the answer sheet.
Multiple choice answer sheet
Title 123456789 10 score.
answer
I. Multiple-choice questions (full score is 20 for this big question, 2 points for each small question *** 10)
The reciprocal of 1 be
A. The second century BC
2.20101018: 59: 57, the Chang' e-2 satellite flew to the moon, covering an area of about 384,000 kilometers in distance to the moon. The data of 384,000 is expressed by the universal scientific counting method as follows
Asian Development Bank.
3. After removing the brackets, it is equal to
Asian Development Bank.
4. The following operations are correct
Asian Development Bank.
5. Which of the following algebraic expressions are similar?
A. and B. and ...
6. If the equation is a solution, the value of is
A. 1B.C.2D
7. If so, the following conclusion must be wrong.
Asian Development Bank.
8. In order to participate in the city middle school students' basketball match, a school basketball team is going to buy 10 pairs of sports shoes. See the table below for statistics of various sizes, so the mode and median of this 10 pair of sports shoes are respectively
Size/cm 2525.2626.527
Purchase quantity/pair 242 1 1
A.25.6，26B.26，25.5C.26，26D
9. The solution set of the inequality expressed on the number axis should be
10. Observe the following monomials:,,, ... According to the law you found, the sixth formula is
Asian Development Bank.
Fill in the blanks (the full mark of this question is 16, and there are ***8 small questions, each with 2 points)
1 1. If it is above zero, it is below zero.
12. Comparison size:. (Fill in "
13. The single factor is.
14. It is known that the price of drinking water in vats is 7 yuan/barrel. Class 1, Grade 7 uses bottled water this semester, and Class 2, Grade 7 uses bottled water this semester. So two classes * * * need to pay the water fee.
15. Calculation:.
The positive integer solution of inequality is.
17. The average value of a set of data 3,0,0 is 1, so this set of data is equal to.
18. On the number axis, if the distance between point A and the indicated point is 3, then the number indicated by point A is.
Third, solve the problem (the full score of this question is 30 points, ***5 small questions, 6 points for each small question)
19. Calculation:.
20. Solve the equation:
2 1. Solve the inequality and express its solution set on the number axis.
22. As the picture shows, it is the shadow of two pillars under the same light.
(1) Please draw the position of the light source in the picture (point P indicates the light source);
(2) Draw the shadow of the character De under this light source (represented by line segment EF).
23. Simplify before evaluating.
4. Answer the question (the full mark of this question is 8 points)
24. Observe the chess pieces in the picture below:
(1) According to this rule, what is the number of pieces in the fourth figure?
(2) The number of chess pieces in the first figure is expressed by an algebraic expression;
(3) How many pieces does it take to find the 20th figure?
V. Application problem (full mark of this problem 16, ***2 small questions, 8 points for each small question)
25. In order to expand domestic demand, a city implemented the policy of "home appliances going to the countryside". The first batch of products included in home appliances to the countryside are color TVs, refrigerators, washing machines and mobile phones. A home appliance store made statistics on the sales of the above four products in the first quarter of 20 10, and drew the following statistical chart. Please answer the following questions according to the information in the picture:
(1) In the first quarter, the number of mobile phones sold in this mall was, accounting for% of the total sales of the four products;
(2) Find out the sales quantity of refrigerators in the first quarter of this mall and complete the bar chart;
(3) Find the degree of the central angle of the sector corresponding to the mobile phone in the sector statistics chart.
26. A class in Grade 7 bought a batch of entertainment prizes. The following is the conversation between the monitor and the shop assistant:
Monitor: Hello, Aunt!
Shop assistant: Hello, what can I do for you?
Monitor: I have 100 yuan here. Please help me buy 10 pen and 15 notebook.
Shop assistant: OK, each pen is more expensive than each notebook. 2 yuan, I'm looking for you, 5 yuan. Please keep it. Goodbye!
According to this conversation, can you list a linear equation to find out the unit price of notebook and pen?
Verb (abbreviation of verb) comprehensive question (full mark of this question 10)
27. A fishing ground plans to buy 6,000 fry of A and B, one from 0.5 yuan and one from 0.8 yuan.
(1) If it costs 3600 yuan to buy these fry, how many fry did A and B buy?
(2) How can I choose the first batch of fry if the money for buying these fry does not exceed 4200 yuan?
Chenzhou city 20 10 next semester basic education teaching quality monitoring test paper seventh grade mathematics answer.
First, multiple choice questions
Title 123456789 10
Answer ABBCBADDDC
Second, fill in the blanks
11..12.>.13.14.15.16.12./kloc.
Third, answer questions.
19.8.20 ..
2 1. The solution set is, and its solution set is represented on the number axis, as shown in the figure.
22. As shown in the figure, point P is the light source of the shadow, and EF is the shadow of the person under light source P. 。
23. The original formula =.
Fourth, answer questions.
24.( 1) The number of pieces in the fourth figure is13;
(2) The number of chess pieces in the first number is;
(3) The 20th digit needs 6 1 block.
Verb (abbreviation of verb) application problem
25.( 1)200, 40%;
(2) 100 sets to complete the bar chart as shown in the figure;
(3).
26. The unit price of notebook is 3 yuan, and the unit price of pen is 5 yuan.
Verb (abbreviation of verb) synthesis problem
27.( 1) Buy 4,000 class A fry and 2,000 class B fry;
(2) The number of Class A fry should be greater than or equal to 2,000.