Urgent need for review materials for the third year of junior high school!!! 100

。Recommended for you.。。 Now that we're in the third year of junior high school, it's time to start doing more practice.

1.Tianli 38 sets. (I want this year's real questions from all provinces and cities.) It's only useful to practice past exams. This is a must for every subject.

2.Invincible (Foreign Research Society) series. Like what is the invincible high school entrance examination mathematics decisive version? This kind of (of course, it depends on which subject you are weaker in.) Just give as much time as possible to these subjects. But be careful not to fall off other subjects).

I was ranked 153rd in the city (although not a province) in the high school entrance examination last year. I bought a bunch of materials at the time. I didn't finish reading it before the high school entrance examination.

So I want to warn the landlord. Don't really buy too many reference books. It's awesome that you can finish it just me.

Besides, the school will definitely send you some information to do. So the landlord must start doing these exercises now. Otherwise, the more you go to the back, the more you don't have time.

One more word of advice. No matter what NB information you bought. Be sure to do your school homework first. After all, it's best to have a teacher to explain.

If you've done all the above. It is recommended that you buy some information with detailed explanations of the answers to do it.

Have fun with your exams. Don't think of it as a test of life and death. Ordinary mind is the most important 。。

As long as you memorize ancient poems, memorize and interpret classical Chinese, and master words.

Count Buy 18 sets of Tianli, that practice is good.

English can buy special review materials for weaknesses. Green card English (is practice) that you can try to buy to do it seriously.

It is aimed at the first 3 subjects (language, mathematics and English), it is a sub-subject, you can buy some reference books, usually master those points, do some exercises, and in the end, just review it, you can buy the reference books you usually buy, like "Complete Interpretation".

I suggest you buy "Double Speed High School Entrance Examination Total Review". This book is very detailed and very easy to use, and I have used it myself, so I think that, you can buy a copy, and chemistry can be pre-studied in advance, and that must be helpful to you.

I'm going to be in my first year of high school this year, so I think you don't have to be so nervous, and you can study hard when school starts. You can use the summer vacation to memorize English words. Hope my advice is useful to you!

I think it's better to make the outline myself, I've always done it myself, so that the impression will be more profound, and then it can play a good role If there is anything you don't understand or can't get right, you can often ask me, I'm in high school.

You can ask the teacher for the exercises, the teacher generally has a set of selected questions, don't do the questions blindly, do a type of questions to summarize often, otherwise you are doing useless work, and you will learn very hard in high school.

Don't be nervous about the high school entrance examination. Follow the teacher's review steps first, be sure to keep up, and after you have finished learning, you must do the real questions of the high school entrance examination in the past few years, and you must think of the answers when you see the questions. After that, I will do the questions issued by the school carefully, and the exam instructions must be read carefully.

And don't be biased, don't think that which subject is strong will ignore which subject, the question should be done every day, and if you don't do it for a day, you will be born. In addition, we must avoid empiricism and be careful in our questions. There are no real questions and questions issued by school teachers for any information, so don't do the tactics of sea of questions.

The textbook is all good.

This is what I used before. The math of this one is pretty good.

Teaching and learning exams review the whole case, all subjects are available, that is very good.

Solution: (1) If the total profit of the product of grade x is y yuan a day, (where x is a positive integer 1 x 10), the functional relationship of y about x: y 76-4 (a-1) *10 + 2 (x-1) Collation:

y 8 (20-x) (4 + x) (2) If the total profit of the product of the x grade is 1080 yuan a day, the quality grade of the product is obtained. 8 (20-x) (4 + x) 1080 solution equation obtains: x 5, x 11 (not in line with the topic, rounded) Therefore, if the total profit is 1080 yuan, the quality grade of the product is the fifth grade.

Set up x by this grade.

Then 76-4x is produced with a profit of 10+2x, then the total profit = (76-4x)(10+2x)=1080 is simplified: x 2-14x+40=0

x-4)(x-10)=0

x=4 or x=10

Because there's 10 grades in total, X has to < 10

So it's up four notches to the fifth.

Set a total of x only. 330/x +5）×（x-15）=330+720

The solution is x1 = 165 and x2 = -6 (rounded).

A: I hope it helps you.

Solution: Let the speed of A be 3x km/h and the speed of B be 4xkm/h.

20 minutes = 1 3 hours.

According to the title, it is called:

10/(4x)-6/(3x)=1/3

1 3x=x=so the speed of the first is km/h).

B speed: kilometers per hour).

Answer: The first speed is km/h, and the B speed is 6kmh.

Let the speed of A be 3x kmh, then the speed of B is 4xkmh, and the equation is established.

6/（3x）+1//3=10/（4x）

Solving the equation gives x=3 2, so.

The speed of A is 9 2 km/h, and the speed of B is 6 km/h.

Kao, this one is simple, A is, and the other is 6

Let the speed of A and B be 3x and 4x. respectively

10000/4x-6000/3x=20

x = meters per minute.

A speed B speed.

Draw a circle with O as the center and OA as the radius.

Connect the OC (or extension wire) to the circle as point P.

So apb=90°.

And because acb=90°, p is on oc, so p point coincides with c point, that is, a b c is on a circle with o as the center and oa as the radius, and it is proved that a c b d is on a circle as above.

I'll give you the answer at half past ten, I'm in trouble right now.