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20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement 1

1. Multiple-choice question: This big question has 10 small questions, of which 1~5 has 3 points for each small question, 6~ 10 has 4 points for each small question, and ***35 points.

1. Among the following four numbers, the number between and is

A.B. C. D。

2. In the following categories, it is equivalent to

A.B. C. D。

Zhanjiang is a beautiful coastal city, surrounded by the sea on three sides, with a coastline of 1556000 meters. The data of 1556000 is expressed by scientific notation as follows

A.B.

C.D.

4. In the geometry on the right, its left view is

5. Wal-Mart stores randomly surveyed 65,438+000 customers to understand the service quality of the stores. The survey results are shown in the figure. According to the information given in the picture, among the 65,438+000 customers, the following customers are not satisfied with the service quality of the store.

A.6 people B. 1 1 people C.39 people D.44 people

6. As shown in the figure, in an equilateral, the midpoint of is and the circumference of is.

a6 b . 9 c . 18d . 24

7. As shown in the figure, in the plane rectangular coordinate system, the vertex of the diamond is at the origin, the coordinate of the point is, and the ordinate of the point is, then the coordinate of the vertex is.

A.B.

C.D.

8. Calculate the function value according to the program shown on the right. If the input value is, the output function value is.

A.B.

C.D.

9. In the following statement:

① The arithmetic square root of 4 is 2;

② sum is the same quadratic radical;

(3) The coordinates of points symmetrical about the origin are;

(4) The vertex coordinates of parabola are

The correct answer is

A.①②④ B.①③ C.②④ D.②③④

10. As shown in the figure, Kobayashi goes straight west from this point 12 meters, and then turns left. Turn at an angle of 0, and then walk12m. So repeatedly. Kobayashi * * * left 108 meters back to the point, and then

A.b.c.d does not exist.

20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement 1

answer sheet

(Full score 100, time 30 minutes. ) You actually spent minutes.

Class: Name: Score:

Multiple-choice question: This big question has 10 small questions, with 3 points for each small question and ***30 points.

The title is 1 23455 6789 10.

answer

Fill in the blanks: There are 10 small questions in this big question, with 4 points for each small question and * * 40 points.

The reciprocal of 1 1. Yes.

12. In order to make the score meaningful, the value range of is.

13. As shown in the figure, it is known that =.

14. Decomposition factor:.

15. It is known that in a sample, 40 data are divided into four groups. The number of data in the first group, the second group and the fourth group is 5, 12 and 8 respectively, so the frequency of the third group is.

16. As shown in the figure, yes, the diameter is the point on the top.

Then.

17. The price of a shirt is 132 yuan. If you sell it at a 10% discount, you can still make a profit 10%.

Then the purchase price of this shirt is yuan.

18. As shown in the figure, the diameter of is 2cm and 4cm respectively, and now it will be.

Translation, when = cm, is tangent to.

19. Known,

If (a and b are positive integers), then.

20. As shown in the figure, in a trapezoid, if each point is the midpoint, then the line segment.

Third, answer: This big question is ***2 small questions, each small question 15 points, ***30 points.

2 1. As shown in the figure, an ant climbs two units to the right from a point along the number axis to reach the point. Point indicates that the number represented by the point is

( 1);

(2) the value.

22. As shown in the figure, rotate the point counterclockwise to get the coordinates of the point.

(1) Draw the rotated and find the coordinates of the point;

(2) Find the length of the path that the point passes during the rotation. (result retention)

20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement 1

Reference answer

First, multiple-choice questions: this big question * * 10 small questions, 3 points for each small question, * * 30 points.

The title is 1 23455 6789 10.

Answer a, b, b, b, c, b, b, b, b.

Fill in the blanks: There are 10 small questions in this big question, with 4 points for each small question and * * 40 points.

1 1.2; 12.； 13.； 14.； 15. 15; 16.90; 17. 108 ;

18. 1 or 3; 19.7 1 ; 20.3。

Third, answer: This big question is ***2 small questions, each small question 15 points, ***30 points.

2 1. solution: (1) the meaning of the question can be scored 5 points.

(2) Substitution value: 8 points.

= 10 point

= 13 point

= 15 point

22. Solution: (1) As shown in the figure, the coordinates of points are: (5 points).

(2) After rotating counterclockwise around a point, the path the point passes is the arc length of a sector with a central angle of 3, so (10) (5 points for drawing).

That is, the length of the path traveled by this point is 15 minutes.

Note: If there are other solutions to the above problems, please give points as appropriate.

20 1 1 Zhanjiang City Middle School Entrance Examination Sprint Strengthening Edition 2

First, multiple-choice questions (this big question * * 15 small question, 3 points for each question, ***45 points)

The absolute value of 1 -2 is ()

A.-2b 2c- 1 2d . 1 2

Please welcome the heartless people in the earthquake and express your love to Yushu. As of April 23, Zhanjiang Charity Association has received donations and materials from all walks of life totaling 4.77 million yuan, and the data of 4.77 million yuan is expressed as () by scientific notation.

a . 4.77× 104 b . 4.77× 105 c . 4.77× 106d . 4.77× 107

3. The following quadratic root is the simplest quadratic root ()

A.B. C. D。

4. The front view, left view and top view of the following geometry are all rectangular, and ()

5. The value range of the independent variable X of the function is ()

a . x≥ 1 b . x ≥- 1 c . x ≤- 1d . x≤ 1

6. The following four groups of line segments, can form a right triangle is ().

A. 1，2，3 B.2，3，4 C.3，4，5 D.4，5，6

7. It is known that ∠ 1 = 35o, then the complementary angle of ∠ 1 is ().

a . 55 o b . 65 o c . 135 o d . 145 o

8. Among the following traffic signs, the one with both central symmetry and axial symmetry is ().

9. The following calculation is correct ()

a . x3+x3 = X6 b . X6÷x2 = x3 c . 3a+5b = 8ab d .(ab2)3 = a3b 6

10. It is known that the radii of two circles are 3cm and 4cm respectively, and the center distance is 8cm, so the positional relationship between the two circles is ().

A. inline.

1 1. As shown in the figure, if the central angle ∠ BOC = 100o, the central angle ∠BAC is ().

100 o c 130 o d 200 o

12. The events described in the following idioms are inevitable ().

A. fishing for the moon in water B. catching turtles in a jar C. waiting for the rabbit D. pulling out seedlings to help fuel the fire

13. Liang Xiao's father wants to buy floor tiles of the same size and shape to pave the ground. Liang Xiao told his father according to what he had learned that in order to lay seamless and non-overlapping floor tiles, the shape of the floor tiles he bought could not be ().

A. regular triangle B. square C. regular pentagon D. regular hexagon

14. A shoe store tried to sell a new type of women's shoes. Sales are as follows:

Model 34 35 36 37 38 39 40 4 1

Quantity (double) 3510158321

Shoe store managers are most concerned about which shoes sell the most. For him, the most important statistic is ().

A. Mean B. Mode C. Median D. Variance

15. Observation formula: 31= 3,32 = 9,33 = 27,34 = 81,35 = 243,36 = 729,37 = 2187,38.

..... Through observation, the number of units determined by the law you found is ().

A.3 B.9 C.7 D. 1

20 1 1 Zhanjiang City Middle School Entrance Examination Sprint Strengthening Edition 2

answer sheet

(Full score 100, time 45 minutes. ) You actually spent minutes.

Class: Name: Score:

1. Multiple-choice question: This big question has 15 small questions, each with 3 points and ***45 points.

The title is12345678 91012131415.

answer

II. Fill in the blanks (5 small questions in this big question, 3 points for each small question, *** 15 points)

16. Calculation: (20 10-) 0- 1 =.

17. The coordinates of the point P (1, 2) about the X axis symmetry point P 1 are.

18. A cylindrical pen container with a height of 15cm and a bottom circle radius of 5cm has a side area of cm2.

(Results are reserved).

19. The school organized a knowledge contest about Expo * * *, with 20 questions, each of which got 5 points correctly, and deducted 1 point if it was wrong or not. Xiaoming got 76 points in the final exam, so he answered the question correctly.

20. COS30o = 32 and COS2 10o =-32, so cos 210o = cos (180o+3o) =-cos 30o =-32;

Cos 225o = cos (180o+45o) =-cos 45 o =-22 because cos 45o =-22.

Guess: Generally speaking, when it is an acute angle, there is COS (180o+) =-COS. So COS 240o =

Third, answer the question (this big question is ***5 small questions, ***40 points)

2 1.(8 points) It is known that P = A2+B2A2-B2 and Q = 2BAA2-B2. There are three ways to connect P and Q with "+"or "-",and there are always * * *: P+Q, P-Q and Q-P. Please select one of them for simplified evaluation.

22.(8 points) As the picture shows, Xiao Ming is flying a kite in the park. The height AB of the hand holding the kite line from the ground is 1.5m, and the length BC of the kite when it flies to point C is 30m. At this time, ∠ CBD = 60o was measured. Find the height of the kite from the ground (accurate to 0. 1m, 3 ≈ 1.73).

23.(8 points) Eating zongzi on the Dragon Boat Festival is a traditional custom of the Chinese nation. On the morning of the fifth day of May, Xiaoli's mother wrapped some zongzi with opaque things (zongzi are the same except the stuffing), two of which are filled with sausage and some are filled with mung beans. Now the probability that Xiaoli randomly comes up with a sausage stuffing is 12.

(1) Find the number of mung bean jiaozi in the bag;

(2) Xiaoli randomly took out a zongzi for the first time (not putting it back) and took out another zongzi for the second time. Please use the tree diagram or list method to find the probability of Xiaoli getting mung bean dumplings twice.

24.(8 points) As shown in the figure, in □ABCD, point E and point F are two points on the diagonal BD, and be = df.

Verification: (1) △ Abe △ CDF; (2)AE‖CF。

25.(8 points) 20 10 A school in Zhanjiang City drew a frequency distribution table and a frequency distribution histogram (as shown in the figure) in order to know the scores of 400 students in the physical education senior high school entrance examination, and extracted some students' scores (out of 40, scores are all integers). Please combine the chart information to answer the following questions:

(1) Complete the frequency distribution table and frequency distribution histogram;

(2) Students whose grades are above 3 1 (including 3 1) are excellent. Please estimate how many people in the whole school have reached the excellent level;

(3) After the extra test, the principal said, "In 2008, the first-year students took the test, and only 90 were excellent students. It took two years to get where I am today ... "Assuming that the annual growth rate of excellent students is the same, please find out the average annual growth rate (the result is accurate to 1%).

20 1 1 Zhanjiang City Middle School Entrance Examination Sprint Strengthening Edition 2

Reference answer

1. Multiple-choice question: This big question has 15 small questions, each with 3 points and ***45 points.

The title is12345678 91012131415.

The answer is BCC, BCA, CCA, BCA, BCB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB. B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B B

II. Fill in the blanks (5 small questions in this big question, 3 points for each small question, *** 15 points)

16.0; 17.( 1,-2); 18.； 19. 16 ; 20.。

Third, answer: This big question is ***5 small questions, each with 8 points and * * * 40 points.

2 1. If you choose calculation (if students choose the other two situations, please give points as appropriate. )

Answer: =

= (6 points)

When = =5. (8 points)

22. Solution:. (Process omitted) (8 points)

23. Solution: (1) The jiaozi number of mung beans in the bag is two. (3 points)

(2) The probability that Xiaoli eats mung bean jiaozi twice is. (Process omitted) (5 points)

24. (Omit the certificate)

25. Solution: (1) Complete the frequency distribution table and frequency distribution histogram; (omitted) (3 points)

(2) It can be estimated that about 160 students in the whole school have reached the excellent level; (2 points)

(3) The average annual growth rate is 33%. (3 points)

20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement series 3

First, multiple-choice questions (5 small questions in this big question, 3 points for each small question, *** 15 points)

The reciprocal of 1 -3 Yes

3rd century BC to 3rd century BC.

2. The following operation is correct

A.B.

C.D.

3. As shown in the figure, ∠ 1 = 70 is known. If CD ∠ Be, then the degree of ∠B is

a . 70 b . 100 c . 1 10d . 120

4. Seven students in a study group donated money to Yushu earthquake-stricken area, and the amount of donations was 5 yuan, 6 yuan, 6 yuan, 7 yuan, 8 yuan and 9 yuan, so the median and mode of the data in this group were respectively

A.6，6 B.7，6 C. 7，8 D.6，8

5. The left figure shows the geometric figure in the main direction, and its top view is as follows

20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement series 3

answer sheet

(Full score 100, time 30 minutes. ) You actually spent minutes.

Class: Name: Score:

First, multiple-choice questions: This big question has five small questions, each with 4 points and ***20 points.

Title 1 2 3 4 5

answer

Two. Fill in the blanks (5 small questions in this big question, 4 points for each small question, ***20 points)

6. Sino-Singapore Shanghai June 1 Sunday: Since the opening of the World Expo one month ago, the passenger flow has been stable, and by 19 that night, the number of visitors exceeded 8 million, which is expressed by scientific notation.

7. The solution of the fractional equation =.

8. As shown in the figure, it is known that in Rt△ABC, the height BC on the hypotenuse is AD = 4, COSB =,

Ac =。

9. In 2007 and 2009, the average price per square meter of commercial housing in a city was 4,000 yuan and 5,760 yuan respectively. Assuming that the average annual growth rate of commercial housing per square meter in the last two years of 2007 is 0, try to list the relevant equations:

10. As shown in the figure (1), it is known that the area of the small square ABCD is 1, and its sides are doubled to obtain a new square A1c1d1;

The side length of the square A1b1c1d1is doubled according to the original method to obtain a new square A2B2C2D2 (as shown in Figure (2)); At this rate,

Then the area of the square A4B4C4D4 is.

Third, answer the question. (There are 5 small questions in this big question, each small question is 12, and ***60).

1 1. Calculation:.

12. Simplify before evaluating, where =.

13. As shown in the figure, each small square in the grid paper is a square with a side length of 1 unit, and the vertices of Rt△ABC are all on the grid points. After the plane rectangular coordinate system is established, the coordinates of point A are (-6, 1) and the coordinates of point B are (-3, 1).

(1) Translate Rt△ABC by 5 units along the positive direction of the X axis to obtain Rt△A 1B 1C 1. Try to draw the graph of Rt△A 1B 1C 1 and write the coordinates of point A 1.

(2) Rotate the original Rt△ABC 90 clockwise around point B to get Rt△A2B2C2, and try to draw the graph of Rt△A2B2C2 on the graph.

14. as shown in the figure, PA and ⊙O are tangent to point a, the chord AB⊥OP has a vertical foot of c, and OP and ⊙O intersect at point d,

It is known that OA = 2 and OP = 4.

(1) Find the degree of ∠POA;

⑵ Calculate the chord length AB.

15. As shown in the figure, the image of the linear function and the image of the inverse proportional function intersect at point A and point B, where the coordinate of point A is (2, 1).

(1) Try to determine the value of;

⑵ Find the coordinates of point B 。

20 1 1 Zhanjiang city middle school entrance examination sprint reinforcement series 3

Reference answer

First, multiple-choice questions: This big question has five small questions, each with 4 points and ***20 points.

Title 1 2 3 4 5

Answer A C C B D

Two. Fill in the blanks (5 small questions in this big question, 4 points for each small question, ***20 points)

6.； 7. 1; 8.5; 9.； 10.625

Third, answer the question. (There are 5 small questions in this big question, each small question is 12, and ***60).

1 1.4;

12.； .