Why the sharp decline of computing power

1. Your situation is universal and not a big problem. My friend also had a similar problem. She said that when she was in primary school, she hit the top 100, junior high school was also very good, and when she was in senior high school, she was full of loopholes. The knowledge of high school needs relatively complex calculation. There are many factors to be considered in physics and mathematics problems. In fact, it is not "the decline of calculation ability", but too many factors interfere so that the energy of sharing calculation is occupied. Like watching movies and playing games on the computer, the picture quality of the game is much worse than that of the movie, but the game may be the computer crash. That's because computers have more to deal with than "picture quality.". It's the same with your calculations. In fact, it's not just the problem of the topic itself. In the process of growing up, people care about more and more factors. These things may be the interference of your calculation

how to solve it? In addition to more practice, there is no other way, but practice is not blind, to high school to do a problem to have a purpose, before doing a problem, we should first clear what this problem needs to pay attention to: for example, your calculation is easy to make mistakes, then write it step by step; If it's easy to get the title wrong, read it over and over again and tick out the main points. Do a problem to have the value of a problem, what you have to improve, what progress you have to be clear. College entrance examination is to let people become a machine to do questions, and practice makes perfect is the only choice

however, I said that "the machine of making questions" is not the only purpose of high school, but only one of the important purposes of high school. Whether you are a good learner or not does not depend on whether you are a question machine, because everyone is the winner of the college entrance examination. It's about how you become a problem machine. If you are purposeful, what adjustments have you made for the calculation errors, and what efforts have you made for the reading errors, then you can say that you are a good learner; On the contrary, if it is a headless and fly like tactics, then even the number one in the college entrance examination is useless

practice more, prepare the error book (even if it's careless, it's also your weakness, you should know where you are prone to make mistakes, you should write it down), do the problem purposefully (don't care whether you can finish it, care whether it's valuable to finish it), and communicate with teachers and friends more (not just study, don't sink in the sea of problems)

my classmate who has similar problems with you has 300 students in grade one and grade two of senior high school for a long time, and the students in grade three suddenly become less than 100, so he went to Zhejiang University for the college entrance examination. This is part of the experience she told me. I hope it can help you.

2. It depends on what's wrong. It's a calculation error or an understanding error. Calculation error is to write slowly, strengthen practice, and try to rece the error rate stage by stage. If you don't understand the knowledge points, you should strengthen the special topic practice and sum up. The types of questions in a knowledge point are almost the same, so it's OK to master the solution. Senior one, and junior high school is a little different, more knowledge, if necessary, to change learning habits.

3. 1. How to describe a person who is destined to be a second born? a second child. 2. In the first half of the year, the state took over the offer and the shares lost money; In the second half of the year, he was born in China, and his kidney was deficient. Banners: untie! 3. The state has liberalized the two-child policy. Many men commented that the daughter-in-law is too old to have a baby. They hope the state will liberalize the policy of marrying a second wife. 4. Wake up in the middle of the night last night, I woke up my wife: "dear, it seems that the earthquake, I feel the whole building in our community are shaking!" She was very insipid: "don't worry, this is not an earthquake. Do you forget that today is the first day of the two-child policy?"

4. There are many ways to improve your memory in daily life. The important thing is that you should be a conscientious person to improve your memory ability and form a habit in any occasion. For example, we can start from the following 15 points, combined with their own actual situation to improve and perfect
1. In daily life and study to maintain a calm mind. It's more about keeping your brain quiet
2. Adjust the working and rest time of your brain, so that your brain can get enough rest. Fatigue will rece the working efficiency of your brain
3. Build up the confidence of good memory, remind yourself to remember what you must remember, and firmly believe that you can remember
4. To learn and find a set of suitable methods to improve their memory, combined with necessary and frequent training and retraining, to improve and improve
5. To keep a strong interest in the world, interest is the first driving force of memory. Have enough interest in the remembered object as your lover< Strong desire and stimulation can promote one's memory
7. Build up the memory associated with pleasant things in your work and life
8. Keep your mind young forever. Keeping young people's stimulation can make your brain cells sharp and young
9. Learn one or more kinds of observation ability. Keen observation can help us remember
10. Think from the other side's point of view, especially in memory. To fully understand the basis of memory objects
11. Developing your right brain and visualizing the memory objects are helpful to memory
12. Mastering the knowledge of rhyme or pithy formula memory and compiling unrelated memory objects into rhyme is beneficial to memory
13. Learning feature memory skills, finding the characteristics of memory objects and distinguishing their characteristics are helpful for memory
14. Learning to organize and classify, and appropriate scattered memory (breaking the whole into parts) are sometimes better than centralized memory
15. Make full use of the five sense organs of human body to mobilize the cooperative memory of all organs of the body
12 kinds of food enhance memory
there are hundreds of millions of nerve cells in the brain constantly carrying out heavy activities. Scientific research has confirmed that diet is not only a necessity to maintain life, but also plays a very important role in the normal operation of the brain. Some foods help to develop people's intelligence, make people's thinking more agile, concentrate more energy, and even stimulate people's creativity and imagination
according to the research of nutrition and health experts, some foods that can help to invigorate the brain and intelligence are not expensive and hard to find, but just cheap and common things, which can be seen everywhere in daily life. The following kinds of food are very beneficial to the brain, mental workers, school students might as well often choose food
1. Milk. Milk is a near perfect nutrition. It is rich in protein, calcium and amino acids necessary for the brain. Calcium in milk is most easily absorbed by people and is an indispensable and important substance in brain metabolism. In addition, it also contains vitamin B1 and other elements that are very beneficial to nerve cells. If excessive brain use and insomnia, before going to bed a cup of hot milk to help sleep
2. Eggs. Brain activity and memory are closely related to the content of acetylcholine in brain. Experiments have proved that the beauty of eating chicken lies in: when the egg yolk contains rich lecithin is decomposed by enzymes, it can proce rich acetylcholine, enter the blood and quickly reach the brain tissue, which can enhance memory. Foreign studies have confirmed that eating one or two eggs a day can provide enough choline to the body, which is good for protecting the brain and improving memory
3. Fish. They can provide high-quality protein and calcium to the brain. Most of the fatty acids in freshwater fish are unsaturated fatty acids, which will not cause arteriosclerosis and do no harm to the cerebral arteries. On the contrary, they can protect the cerebral vessels and promote the activities of brain cells
4. Monosodium glutamate. The main component of monosodium glutamate is sodium glutamate, which can be converted into glutamic acid under the action of gastric acid. Glutamate is the only amino acid involved in brain metabolism, which can promote intelligence development, maintain and improve brain function. Regular intake of monosodium glutamate is helpful to improve mental retardation and memory impairment. Because monosodium glutamate can increase acetylcholine in brain, it also has certain curative effect on neurasthenia
5. Peanuts. Peanut is rich in lecithin and cephalin. It is an important substance needed by the nervous system. It can delay the decline of brain function, inhibit platelet aggregation and prevent cerebral thrombosis. Experiments have proved that eating peanuts regularly can improve blood circulation, enhance memory and delay aging. It is a real "evergreen fruit"
6. Millet. The content of vitamin B1 and B2 in millet is 1.5 and 1 times higher than that in rice, respectively. The protein of millet contains more tryptophan and methionine. Clinical observation found that eating millet can prevent aging. If you usually eat some millet porridge and rice, it will be beneficial to brain health
7. Corn. Corn embryo is rich in linoleic acid and other unsaturated fatty acids, which can protect cerebral blood vessels and rece blood lipid. In particular, the water content of glutamic acid in corn is higher, which can help promote the metabolism of brain cells. Often eating some corn, especially fresh corn, has a brain strengthening effect
8. Daylily. It is often said that day lily is a kind of "worry forgetting herb", which can "calm the nerves and relieve depression". Note: cauliflower should not be eaten raw or fried alone to avoid poisoning. It is better to eat it dry or cooked
9. Pepper. The content of vitamin C in capsicum is the highest among all vegetables, and the content of carotene and vitamin is also very rich. Capsaicin in Capsicum can stimulate taste, increase appetite and promote cerebral blood circulation. In recent years, it has been found that the "spicy" taste of pepper is also a hormone to stimulate people's pursuit of career success, which makes people energetic and active in thinking. It is better to eat raw pepper
10. Spinach. Although spinach is cheap and unremarkable, it is a brain healthy vegetable. Spinach is rich in vitamin A, C, B1 and B2, which is one of the "best suppliers" of brain cell metabolism. In addition, it also contains a lot of chlorophyll, also has the effect of brain
11. Oranges. Orange contains a lot of vitamin A, B1 and C, which is a typical alkaline food and can eliminate the harm of a lot of acidic food to the nervous system. During the examination, eating some oranges can make people energetic. In addition, lemon, Mandarin and grapefruit also have similar effects and can replace orange
12. Pineapple. Pineapple contains a lot of vitamin C and trace elements of manganese, and less calories, often eat has the effect of body fluid, refreshing, some people say it is able to improve people's memory fruit. Pineapple is often the favorite fruit of some musicians, singers and actors, because they have to recite a lot of music scores, lyrics and lines.

5. Elders often say that brain is like a machine. If you don't use it for a long time, it will rust. If you are 20 years old, your memory should still be very good. I hope you can understand it

6. Exercise itself is to step by step, speed is not up to, to better understand your own body, you understand

7. An apple a day helps to enhance memory. People who often eat fish have a better memory. If you have time, playing table tennis has a good effect on practicing reflection ability, and badminton is also OK. No matter what age, people are inseparable from sports and vitamins. Exercise is healthy and spirit is good.

8. I think it may be that the training time is too long or the system problems lead to a sharp decline in accuracy.

9. That time is the same as the off-ty time. It's the peak time. Of course, there will be congestion, and the mobile speed is slow!

10. Dalmatian, also known as spotted dog, is originally from Yugoslavia. Calm and alert, well proportioned, strong, muscular, lively, no shyness, smart expression, obedient and easy to train, sensitive, alert, easy to get along with children. The Dalmatian dog has great enrance and runs quite fast. The hindquarters are strong, with smooth and clear muscles. Because of its excellent running and biting ability, damaiting is often used as a competitive dog. Dalmatian dogs are white when they are born, and the spots can change. Small dogs have slight spots on their bodies. As they grow up, the spots become obvious and become a unique sign.