mathematics
1. Bring a protractor into the examination room. When you encounter analytic geometry, you can immediately know how many degrees it is, and basically you can solve the problem immediately. If you want something else, you can replace it. The angle of the big question is a very important conclusion, then you can fry some and write a conclusion at last.
2. The last question in the conic curve is often very complicated, and it is difficult to get together, which makes it impossible to calculate K. At this time, the special value method can be adopted to forcibly calculate K. The process is to get together first and then calculate δ. Using the lower David theorem, it is ok to list the expressions that need to be solved.
3. The last question in the conic curve is often very complicated, and it is difficult to get together, which makes it impossible to calculate K. At this time, the special value method can be adopted to forcibly calculate K. The process is to get together first and then calculate δ. Using the lower David theorem, it is ok to list the expressions that need to be solved.
4. There is a step in the process of spatial geometry proof that I really can't think of directly writing out the unused conditions and drawing unexpected conclusions. If the first question really can't be written directly, the second question can be used directly! Students who use conventional methods suggest that a spatial coordinate system should be established at will first. If you make a mistake, you can get 2 points!
5. A new method to find dihedral angle B-OA-C in solid geometry. Using cosine theorem of trihedral angle. Let dihedral angle B-OA-C be ∠OA, ∠AOB be α, ∠BOC be β and ∠AOC be γ. This theorem is: cos ∠ OA = (cos β-cos α cos γ)/sin α sin γ. Knowing this theorem, if you encounter the problem of finding dihedral angle in solid geometry in the exam, you will come up with a set of formulas. It is not too late. Try it?
6. Mathematical (physical) linear programming problem, it is faster to solve the equation directly without drawing.
7. The third question, the last big question in mathematics, often uses the conclusion of the first question.
8. Fill in the blanks in math (science). Drawing in proportion has a ruler, zero-based direct seconds, and the ruler is really useful.
9. If you can't choose mathematics, remove the maximum and minimum values and choose one. The teacher told us! 80% of the college entrance examination questions are like this.
10. The derivative multiple-choice questions of transcendental functions can be replaced by constant functions that meet the conditions, but not by linear functions. If there are too many conditions, killing inequalities by mirror method is also a special value method mirror method ~
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English
1. English ... composition with inverted sentences ... add a few more points ... better than anything ... Only in this way can you ... this sentence can be used in any composition and will instantly improve a grade.
2. The new curriculum standard English cloze was decisively selected. Correct the mistake and see that and is changed to but.
3. Correct English mistakes. The type of verb must have a noun, an article, a part-of-speech error, a pronoun, a logical relationship error and a word to be added or deleted. The subjective and passive prepositions may be wrong. Pay attention to the sentences written in two lines.
4. English reading comprehension, please ask the author to choose ~ ~ objectively, and all diaosi and college entrance examination English reading are more positive and rational, so the response questions should be positive.
5. It's necessary, it's only like. It is generally wrong to never read in English. According to hundreds of sets of English test questions written by the landlord in senior four, I think this is very accurate! !
6. There will be a problem involving inference in English. Whenever you see this word, you just need to look at the sentences that have not appeared in the original text of the option.
7. English multi-choice non-predicate verbs have a high probability of past participle. If it is really done, they will judge initiative, passivity and relationship, and they are generally right, but one thing is dear.
8. Looking at inverted sentences, there are generally four options, excluding two options that are not inverted sentences, and the remaining two are one with auxiliary verbs and one without auxiliary verbs. There is always an auxiliary verb. Yes, this landlord has tried it every time.
9. English broadcasting used to exist, so you usually choose it.
10. When you choose nothing and what in English, you must choose what form. It's true. I met it five or six times.
& lt common language >
1, and. This can be used in any composition.
Nothing is more important than the following fact ... The fact is undeniable. This can be put on 80%.
3. Of course, in order to improve your grade, you can change the importance of your composition to prominence, and change the importance to exotic, advanced vocabulary, and diaosi is a must for 13.
Four ..... has been playing an increasingly important role in our lives. Alas, this sentence is quite good. It plays an increasingly important role in our life.
Finally, I hope what has been inspired can help, and wish you a pleasant journey. I haven't recited this sentence for a long time, have I? If there is, point it out.
6.as far as I am concerned, as far as I am concerned, I'd better combine the words.
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Language 1. Choosing China classical Chinese means choosing the wrong one. As long as it has the same modern meaning, 99% is wrong. Do not believe yourself to check the questions of the recent college entrance examination.
2. There is no lyrical and dual rhetoric in the appreciation and analysis of China's ancient poems. You can't leave the question blank.
3. The topic of the composition is eye-catching. Throw a famous saying as an inscription at the beginning. Then sum up the material, add "I think" and highlight the point directly. In addition to the inscription, there are two and a half lines in the first paragraph that are the golden section. The number of words at the end exceeds the limit of 800, and two and a half lines are the golden section. Be sure not to write a typo at the beginning.