A liberal arts student who is about to enter his third year of high school asks for help!!!!!!!!!!!!

Well, it should be like this, every sophomore in high school has such a similar idea when they are about to sound like the third year of high school, but you have to understand that the learning method has to rely on your own thinking, and others are just some suggestions, maybe it is not suitable for you, so if you want to really review the courses of the third year of high school, you should make a set of review plans by yourself, and then revise them.

Then I'll give you a few suggestions.

1. First of all, I will talk about Chinese, the most important thing in Chinese is the textbook, don't think that you can only do a lot of mock college entrance examination questions, in the beginning you may go back because of some college entrance examination questions and get a high score, but you must be clear that there is no good textbook review will not return to the final high score. Classical Chinese, you should be very proficient in memorization, and the meaning of the key words that the teacher has drawn should be mastered, because most of the explanation questions in the classical Chinese test of the college entrance examination are ** in the textbook Also, usually train to read modern literature, don't look at the answers, and be strict with yourself as the college entrance examination, so that you will be comfortable in the college entrance examination. When reading, try to find as much as possible in the question paragraph, many of which can be found in the passage, and even if some of them cannot be found, it can also help to understand.

For the composition of the college entrance examination, I don't know how your foundation is, well, when reviewing, the teacher asks for training composition, don't turn over the material, the same as reading, like the college entrance examination, during the exam, if your composition skills can, try to ask for new, but if the foundation is not very good, I advise you to grasp the most basic good, because then you can also get about 47 points. Essays with new graphics and no content are scored very low.

And usually have to copy and memorize a lot of compositions, which is the fastest way.

2. Mathematics, no way, mathematics can only be improved by doing problems, don't do too difficult questions, it is useless at all, as long as you review and sort out what the teacher talks about in class at night. Don't forget to go back to the textbook at the end of the day.

3. Speak English, the important thing in English is the sense of language, in the last year of high school, you should read a lot of textbooks, which is conducive to the cultivation of language sense and grammar memorization. Words are the most basic, and if you don't get the words back, you have to turn over the textbooks for three years and review them again. I should also write down the words that I usually encounter and can't reply, which is conducive to expanding my vocabulary and making it easier to do reading comprehension.

4. Pay attention to listening to lectures in politics, and be sure to memorize textbooks. I'll teach you a method, which is to memorize the table of contents, and memorize the textbook table of contents so that the knowledge will return to the natural classification, and the viewer will recall the catalog, not only remember it but also not easy to forget.

Read more magazines, such as Readers, Youth Digest, and so on, and read more famous books.

There is nothing to say about mathematics, practice, practice more, just memorize the formula.

English Words binge-watching, no matter what time it works, read more.

Geography Familiarize yourself with maps and do some questions with some understanding Maps are very important It is best to ask the teacher because maps are more abstract in liberal arts.

History It would be nice to see more.

I'm terrible at politics, but there's a good way to memorize the answers you've taken to the papers, and it's good to put them in one category.

Follow your feelings, and your heart will give you direction.

At this point, let's just drag it onto the roll.

Let the animal be at point p, because b and c find this signal at the same time, so pb=pc, so p is on the bisector of bc, and find the equation of the straight line where p is located.

And because at a certain moment A finds an animal signal, 4 seconds later, B and C find this signal at the same time.

So pb-pa=4

Finally, find the point p.

1. The initials of two words (or several words) of a word are the same (double sound), and the same finals are called (overlapping rhyme).

2.There are more than 360 types of drama in China, which can be divided into six major systems: lantern opera, Yangge, tea-picking opera, flower drum opera, Taoist opera and other systems.

3 In ancient times, the text and the character had different meanings, and everything (pictographic, i.e., single) was called a text; Where (form and sound are mutually beneficial, that is, combined) is called a word. Hehe, I hope it can help you, I've encountered this problem before.

1. Double voice, overlapping rhyme.

2. Lantern opera system, flower drum opera system, tea picking opera system, Yangge opera system, Taoist opera system and other systems.

3. The ancients called the single, non-decomposable pictographs and signifiers "Wen"; The whole character that can be analyzed is called "character".

Ahh

I'm sorry, the first two are really limited in my ability, I don't know, the last one you can refer to.

1) The equation of l.

pass (1,0), so let the equation of the straight line l be: x=my+1 ·· 1）

For the elliptic equation, c 2 a 2=1 2 can be obtained from e, so let the ellipse be x 2 2c 2+y 2 c 2=1··· 2）

Let a(x1,y1) b(x2,y2) p(x0,y0) at the midpoint of a and b

Simultaneous (1) and (2) to obtain the equation.

m^2+2）y^2+2my+1-2c^2=0

From Veda's theorem, y0=(y1+y2) 2=-m m 2+2 is substituted for (1) then x0=2 m 2+2

And because p passes through the straight line y=1 2x substitutes p points (x0,y0) into m=-1

Therefore the equation for l is x+y-1=0

2) The equation of the ellipse.

x^2/2c^2+y^2/c^2=1···2）

The right focal point is (c,0), and the point symmetrical with respect to the right focal point with respect to l is q(x3,y3).

Let L1 pass the right focal point and Q point, and L is perpendicular to L1, then its slope multiplied by the slope of L should be -1

The slope of l1 is 1 and let l1 y=x-c be coupled with equation (2).

Simplified to obtain 3x 2-4cx=0, the knowledge intersection is (0,-c),(4 3c,1 3c).

If the midpoint between (0,-c) and the right focus (c,0) is on l, then there is no solution to the l equation.

Then the midpoint of (4 3c, 1 3c) and the right focal point (c, 0) is on l, from which c=3 4 is obtained

Substituting (2) can be used to find the elliptic equation.

Hope.. I'm tired of typing.

It's that easy? None of me

Let the upper point of the ellipse be (x,y), then there is y = 9-9x 4 (the ellipse expression is sorted out).

The distance d to a(1,0) then d = (x-1) + y = (x-1) + 9-9x 4 = ......=(-5/4)(x+4/5)²+54/5

When x=2, d min=1

At this point, y=0 (right vertex).

So point p(2,0) minimum distance d=1

Let the circle (x-1) 2+y 2=r 2

r is the shortest distance.

Learn mathematics well, make a detailed general plan, make the most of each day, start with the content of the first year of high school, step by step, maybe not much progress at the beginning, because too many things have fallen, you can have obvious progress later, if you don't understand, you must ask the teacher or classmates clearly, and write more exercises.

In English, memorize all the words from the first to the third year of high school, vocabulary is the most basic, memorize part of it every morning, you have to review it often, the words are memorized, reading is not a problem, the teacher should train listening every day in the third year of high school, and practice for a year during that time, there will be great progress, and the grammar should also be studied hard, and English is mainly memorized more.

If you are in Chinese, it will generally be fine, you can spend less time and follow the teacher to review.

In addition to the number of languages, other subjects should also be studied carefully.

Apply to the school to repeat a grade, and then wake up to the fact that this is the only way to go.

Actually, it's not very rare, as long as you wake up now, it's not too late!! The so-called prodigal son does not change his money! The most important thing for you now is to focus on the basics, use all the time you can to read the textbook several times, and learn to ask questions, even if it is the simplest!!

Don't be afraid of jokes, you're learning, not doing anything!! It's good to look at the language occasionally, don't spend too much time on this, put time on other things, and the effect will be different. Talk to others more, and you can get a lot of experience in communication.

Anyway, don't be impatient, everything is down-to-earth!!

The second definition of a conic curve is important!

Distance to the fixed point (focus) Distance to the fixed line (alignment) = constant value (eccentricity e).

1) Let the distance fb from point b to the left focus be x, af=2x

Then, the distance from b to the alignment is x e, and the distance from a to the alignment is 2x e

If the line segment AB is used as the hypotenuse to make a right-angled triangle, the distance between the X coordinates of the two points A and B = half of the length of AB, because AB is tilted 60 degrees.

Then there is 2x e - x e = (x+2x) 2

Find e=2 3

2) Method 1: ab=2*(x1-x2).

Simultaneous elliptic equation and linear equation y=root number 3*(x+c).

ab is known from the root-coefficient relationship

Then use the result of 1) to find the elliptic equation.

Method 2: The idea is also to connect the straight line and the elliptic equation. However, this method is computationally intensive and flexible.

Set the coordinates of a and b (x1, y1) and (x2, y2).

Since on the ellipse, there must be x1 2 a 2 + y1 2 b 2 = 1 and x2 2 a 2 + y2 b 2 = 1

The two formulas want to subtract and arrange, b 2 a 2 = -(y1-y2) (x1-x2) *y1+y2) (x1+x2).

y1-y2) (x1-x2) is the slope = root number 3 , b 2 a 2 = 1-e 2 = 5 9

So ab midpoint (x0, y0) satisfies, 5 9 = - root number 3 * y0 x0 - 3).

From ab=15 4, af=2fb, then the midpoint is (-c+5 16, 5 16 root number 3).

Bring in (3) with 5 9 = - root number 3 * 5 16 * root number 3) (-c+5 16).

Find c=2 then a=3 and b 2=a2-c 2 =5

The elliptic equation is x 2 9 + y 2 5=1