20 13 test questions are stable in structure, comprehensive in knowledge coverage and focused.

We use the first volume of the national new curriculum standard in Shanxi, and the same papers are used in Henan, Xinjiang, Ningxia, Jilin, Heilongjiang, Yunnan, Hebei and Inner Mongolia. 20 12 Henan joined the new curriculum standard test paper in the first year, which increased the difficulty of the college entrance examination questions to some extent. In 20 13 and in the future, it can't be as simple as 20 1 1. However, although the difficulty of the examination questions is different, there is no difference in the examination of knowledge points and method ability. The key is to understand the core concepts of each knowledge point in normal learning. Taking the science volume as an example, the overall structure of the 20 13 college entrance examination questions is stable, with a wide range of knowledge. It pays attention to the investigation of the concept essence, deepens the ability and conception, highlights the examination of thinking ability and innovative consciousness, strengthens thinking, and highlights the examination of candidates' ability and mathematical literacy.

The examination paper is closely related to the examination instructions of the new curriculum standard, and the basic knowledge is comprehensively investigated. There is nothing wrong with multiple-choice questions, which are all based on examining students' basic knowledge. Of course, 1 1 and 12 are slightly more difficult, and 12 requires higher comprehensive degree and ability. There are still five key types in solving problems: solving triangles, solid geometry, probability and statistical distribution list, analytic geometry and derivatives.

Macroscopically, the propositional structure of 20 13 examination questions is similar to that of 20 12, and the questions, quantity, score, difficulty, knowledge distribution and coverage remain relatively stable. Function knowledge accounts for about 22 points, solid geometry for about 22 points, analytic geometry for about 22 points, mathematical statistics, probability and binomial theorem for about 22 points, trigonometric function for about 17 points, series for about 10 points, set, complex number, program block diagram and plane vector for 5 points respectively, and elective course 10 points. The structure of the test questions is similar to the first simulated test in Taiyuan and the adaptive test training in Shanxi Province, so students should not be unfamiliar with such test questions.

Second, the difficulty has not changed significantly compared with last year, but the form is more flexible.

This year's exam focuses on candidates' understanding and mastery of basic concepts, basic principles and basic methods; Examine the examinee's mathematical thinking ability and understanding of the essence of mathematics; Examine the ability of candidates to refine relevant quantitative relations, sort out, analyze and process data, and solve simple practical problems. The knowledge involved in this exam covers almost all the important contents of the knowledge learned in senior high school, which fully embodies the principle of "focusing on key knowledge". Compared with last year, the difficulty has not changed significantly, but the form is more flexible.

There is almost no difference from the difficulty of last year's test set, complex number, algorithm and program block diagram, probability, binomial theorem and even the location of the question.

Compared with last year, this series is less difficult. The problem is the same. Choose one to fill in the blanks. Trigonometric function examines a small problem and a big problem. A small question examines the flexible application of the basic formula of trigonometric function. The big problem is a routine problem to solve triangles, which mainly investigates the application of sine and cosine theorems, but involves many triangles, so it is difficult for students to answer. The questions 1 1, 15, 16, 2 1, 15 examine the application consciousness of conditions when a function takes the maximum value. However, if we don't pay attention to the profound understanding of the essence of mathematics in our usual teaching and do too much repetitive format training, students will easily be at a loss, and the 2 1 problem is still a traditional derivative synthesis problem. 16 question examines the application consciousness of the concept of "symmetry". And if we usually train "symmetry" into several relational understandings, then this problem will deviate from the direction.

Solid geometry, this module mainly examines three views, the relationship between geometry and sphere, and the conventional examination method of solid geometry, which has not changed much compared with last year. The first question of the big question proves that last year and this year are different, and the plane straight line is vertical. The second question is the calculation of the included angle between the line and the plane this year. Let's find the sine value. For most science students, the calculation of dihedral angle is used to the method of establishing department. It is also possible to build a department in this exam, just need to prove two first.

Compared with last year, it is more difficult to analyze geometry. The minor problem is in question 4, question 10, question 20. A small question examines the basic knowledge of ellipse and hyperbola. The solution is a comprehensive investigation of circular and conic curves, which is complicated and requires a large amount of calculation. The first question examines the determination of trajectory equation, and the second question belongs to the synthesis of tangent of conical curve.

Mathematical statistics mainly examines the ability to process data, following the examination method that paid attention to the close connection between application and practice last year, but it examines the conditional probability problem that we are not easy to pay attention to, which is worth remembering.

This year's multiple-choice fill-in-the-blank questions in the math and science papers of the college entrance examination are easy to get started, and there are common methods. For example, the question 10 directly and simply examines the "midpoint chord" model, and the question 14 directly and simply examines the relationship between series, but at the same time emphasizes the idea of ability. For example, it is not difficult to solve the problem of 1 1 according to the image, but it is easy to get the correct answer through the combination of graphic features and option features, which is both accurate and convenient. Many questions have certain calculation ability, and the quantity is not small. Although the examination questions are wide, they are still narrow compared with last year. For example, simple logic, linear programming, permutation and combination, regression analysis in statistics, independence test and so on, which we often practice, are not involved.

In addition, Wang Shuangbing put forward some suggestions on answering skills, strategies and psychology: 1. Answer skills: The core idea is to "score according to the scoring standard as far as possible". 2, answering strategy: do not jump, do not omit, write detailed steps, do not pursue one step in place. When calculating a problem, it is necessary to write out the core steps such as conditions and substitution, instead of writing out the detailed calculation process and simplified process one by one. Set variables, list key conditions and give answers on the basis of solutions. 3, answering psychology: answering questions should be based on the strategy of scoring as much as possible, adjust the mentality, and be willing to spend time on the topic to be done. Certainly not procrastination and waste.