How to read a book to lay a good foundation for future study?
The book is simple, but the exam is difficult! Finally, the teacher said that nothing would change. How on earth do we study?
Take the atmosphere, weather and climate as examples to analyze the problem.
For example, the thermal cycle is the simplest form of atmospheric motion. The reason is that the ground is uneven in heat and cold.
Uneven rise and fall of hot and cold will lead to air pressure difference. If there is pressure difference, there will be pressure gradient force and wind.
The movement of wind is not only affected by the pressure gradient force, but also by friction and geostrophic deflection force, so the wind direction changes.
Because of the different forces, the wind direction on the ground is different from that at high altitude. Then, the wind direction (why is the wind in this direction instead of that direction? ) Is the question clear?
Surface wind direction: oblique isobar.
Wind direction at high altitude: parallel to isobar.
These are the basics. After the foundation is finished, go further. Then, we will start talking about the global pressure zone.
Let's talk about the pressure zone first.
1, if the earth is homogeneous and does not rotate, then there is only one circle of circulation on the earth, from the equatorial region (equatorial low pressure region) to the polar region (polar high pressure region).
2. But because of the earth's rotation, the geostrophic deflection force plays a role. Therefore, the airflow from the equatorial region to the polar region is deflected to the west wind, unable to continue northward, and forced to sink, reaching the ground to form a subtropical high region ... and finally forming a three-circle circulation on the earth.
Let's talk about the wind belt.
3. Solve the above pressure belt problem, and combine the knowledge of wind (wind points from high pressure to low pressure, plus a geostrophic deflection force) to easily solve the wind belt problem.
4. Difficulties: How did the sub-polar low pressure belt near latitude 60 form? Question, draw a picture to express the polar front here. Think about the intersection of polar airflow and subtropical airflow. Which airflow is on it? Why?
5. Global pressure belts and wind belts (7 pressure belts and 6 wind belts need to be memorized? ) it's all over. These pressure belts and wind belts are also influenced by the sun and move with the movement of the direct point of the sun. So there was a phenomenon of south to north.
6. In addition to the influence of the sun, the land-sea distribution (land-sea distribution and land area size) also has a great influence on the wind zone (land-sea thermal difference) of the global pressure zone. So there are two typical examples, that is, the subtropical low pressure belt and subtropical high pressure belt in the northern hemisphere were cut off in June+10 and July 5438.
7. Then, there is monsoon circulation (reasons: thermal difference between land and sea, seasonal movement of wind belt in pressure belt).
8. At least before this knowledge, I have learned more basic knowledge: the composition of the atmosphere, the structure of the atmosphere, the heating process of the atmosphere, etc. , each is the basic knowledge. Are made up of knowledge points.
9, monsoon circulation theory, from which knowledge points to start learning? Yes, common weather systems: frontal system (cold front system, warm front system, quasi-static front), cyclone system and anticyclone system (low pressure and high pressure system)-why do they have different names? (Rotation: rotation, movement, airflow, pressure, static state, barometric conditions) plus frontal cyclone.
10, and finally add a knowledge point exercise: judging climate types by combining pictures and texts (knowledge points of factors affecting climate have been added). No, you see, it finally formed a big knowledge module: "Atmosphere and Weather and Climate". Once the logical relationship of knowledge is clarified, the main knowledge comes out.
Generally speaking, if you go from ignorance to expert problem solving, you generally need three steps: simple learning (mastering knowledge points), systematic learning (establishing a system), and clearing your mind (solving problems).
The first step is simple study. We should learn all the knowledge points through simple understanding, memory and practice. The second step is systematic learning. Through induction, summary and sorting, many knowledge points are linked, and such a complete system diagram is established in our brains: Step 3, because of sorting, the logical relationship between the previous knowledge and the later knowledge will be clearly displayed, which is the sorting idea.
If you want to improve your grades firmly, you can do the following.
1. There are only two things to do: the first is to learn knowledge well when studying; The second is to correctly use the knowledge learned to solve problems when doing problems; 2. When studying, a single knowledge point is actually not difficult to learn, but when there are more and more knowledge points and the connection becomes more and more complicated, many people begin to feel dizzy. To solve this problem, we should study systematically; 3. The so-called problem is nothing more than two aspects: First, a lot of knowledge points have been tested; The span between the second knowledge points is large. As long as we have a clear knowledge structure diagram and problem-solving thinking diagram in our minds (see the next chapter for details), the problem is no longer a problem.
A confused person can't be an excellent student. So what is clear learning thinking and what can be done to become a smart student with clear thinking in learning? Please contact Mr. Zhu Genping of Sunshine Hotel.