The exercises and answers at the end of the seventh grade in the second volume of mathematics.

Mathematical simulation test paper for the seventh grade before the final exam next semester (1)

This lecture is about educational information.

First, the teaching content:

Exam simulation

Typical example

1. Fill in the blanks (2 points for each blank, ***32 points)

1.__________________

2.______________ =_________________

3. The known _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

4. As we all know, _ _ _ _ _ _ _ _ _ _.

A: 6

5. Change 30.26 into degrees, minutes and seconds as _ _ _ _ _ _ _ _ _ _ _ _; Into _ _ _ _ _ _ _ degrees.

A:;

6. If it is a binary linear equation about X, then a = _ _ _ _ _ _, and b = _ _ _ _ _ _ _

7. Extend the line segment AB to C, so that the length of AC is four times that of AB, then the ratio of the length of AB to BC is _ _ _ _ _ _ _.

A: 1: 3

8.By, x stands for y, y = _ _ _ _ _, y stands for x, and X = _ _ _ _ _ _ _

9. If _ _ _ _ _ _ _ _ _ _ _, n = _ _ _ _ _ _ _

A: 2; 1

10. Known:,, ... According to the law obtained by the previous formula, we can guess _ _ _ _ _ _ _.

2. Multiple choice questions (3 points for each question, 30 points for * * *)

1. The genetic material of human beings is DNA, which is a very long chain. The shortest chromosome 22 is 3000000000 nucleotides, and 30000000 is expressed as () by scientific notation.

A.B.

C.D.

A: B.

2. The following operation is correct ()

A.B.

C.D.

A: C.

3. Known

A. BC 1 year

A: d

4. If, then A= ()

A.B. C. D。

A: A.

5. Known ()

A. 25 BC

A: C.

6. In the figure, if the straight line AB and CD intersect at point O,,, then the degree is ().

A.40 B. 45 C. 30 D. 35

A: d

7. When the value of polynomial is 8, when x=3, its value is ().

A. 24 BC

A: C.

8. As shown in the figure, AB//CD gives the following conclusions:

( 1)

(2)

(3)

(4)

The correct conclusion is ()

A. 1 B. 2 C. 3 D.4

A: d

9. Let the solution of the equation be, then the values of a and b are () respectively.

A.B.

C.D.

A: A.

10. The following statement is true ()

One and only one straight line is parallel to the known straight line.

B. Two straight lines are cut by a third straight line, which complement each other.

C. Two disjoint straight lines are called parallel lines.

D bisectors of adjacent complementary angles are perpendicular to each other.

A: d

Three. Problem solving (5 points for each question, *** 10)

Original formula =3

2. Simplify first, then evaluate

Original formula =

Four. Geometric reasoning (8 points)

Fill in the blanks with pictures:

( 1)

_________//____________( )

(2)

_________//____________( )

(3)

Answer: (1)AB//CD (internal dislocation angles are equal and two straight lines are parallel).

(2)AC//BD (same angle, two straight lines are parallel)

(3) (The internal angles on the same side are complementary and the two straight lines are parallel)

Verb (abbreviation of verb) application problem (10 mark)

Give some monkeys some apples. If each monkey is divided into three parts, then there are eight parts, and each monkey is divided into five parts, then the last monkey gets less than five parts. How many monkeys are there? How many apples?

Solution: Suppose * * * has X monkeys, then there is an apple.

According to the meaning of the question

There are 5 monkeys and 23 apples.

6. It is known: As shown in the figure, AB//CD and EF are equally divided, GF crosses AB at m, and the score is (10).

Solution:

A: Yes.

Simulated test questions (answer time: 80 minutes)

Fill in the blanks

1. If the solution of, then k = _ _ _ _ _ _ _ _ _ _ _ _ = _ _ _ _ _ _.

2. Use scientific notation to express the calculation result of the following formula _ _ _ _ _ _ _ _.

3. As shown in the figure, there are _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

4. As shown in the figure, it is known that the straight line a//b is cut by the straight line L. If so, Then 2 = _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

5. If yes, then _ _ _ _ _ _ _ _.

6. As shown in the figure, point B is in the direction of _ _ _ _ _ _ _ _ east of point A.

7.。

9.____________。

10., then = _ _ _ _ _ _.

2. Multiple choice questions (one and only one of the four options given in each question meets the requirements of the topic)

1. The solution of the following four solutions is ().

A.B.

C.D.

2. If a>b, then in the following categories, what cannot be established is ().

3. The following proposition is correct ()

(1) Two disjoint straight lines are called parallel lines;

(2) There is one and only one straight line parallel to the known straight line;

(3) Two straight lines are cut by the third straight line, and the same angle is equal;

(4) Two straight lines perpendicular to the same straight line are parallel;

(5) Two straight lines intersect. If the vertex angles are complementary, two straight lines are perpendicular to each other.

A. 1 B. 2 C. 3 D.4

4. In the following calculation, the correct one is ()

( 1)

(2) ;

(3) ;

(4) ;

(5)

(6) ;

(7) ;

(8)

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

5. Combined with graphics, the correct one of the following four inferences is ().

6. The following drawing statement is correct ()

A. extend the line segment AB to c so that ab = BC.

B. extended ray ab;

C. the passing point a is ab//CD//ef;

D. make the bisector OC of AOB.

7. The following formula is incorrect ()

( 1)

(2)

(3) ;

(4)

(5)

A. 1 B. 2 C. 3 D.4

8. Given the line segment AB, extend AB to C, make BC=2AB, and extend BA to D, then ()

Three. Calculate the following questions

1.________________;

2._______________;

3.________________;

4.______________;

5._______________;

6.____________________________;

7._____________________________;

4. Answer questions:

1. Solve the following inequalities

2. Known: as shown in the figure, AB//CD, BC//DE. Verification:

Prove:

3. Employees of a certain unit went to plant trees on Arbor Day, and 50 trees were planted in groups A, B and C * * *. The number of trees planted in group B is the sum of groups A and C, and the trees planted in group A are just the sum of groups B and C. How many trees have been planted in each group?

4. Give a bunch of apples to several children. If each child is divided into three parts, the rest is eight parts. If everyone in front is divided into five, the last person will get less than three apples. Find out the number of children and apples.

5. As shown in the figure, try to judge the positional relationship between AD and BC and prove your conclusion.

6. Given:, find the value:.

Test answer

Fill in the blanks

1.2,3 2.

3.3 4.69; 36

5.20 or 120 6.55.

7.8.

9. 10.9

2. Multiple choice problem

1.C 2。 B 3。 B 4。 B

5.D 6。 D 7。 B 8。 A