Go back to the year of the high school entrance examination

Chapter 5 The Difficulty of Mathematics in Summer Journaling

Ji Shi's original idea was very good.His plan is to first judge the omissions in his knowledge points through the practice papers issued during the holidays, find out where his problems are, and then review them in a targeted manner...

Liangqi team

The idea is undoubtedly beautiful, but after seeing the content of the math paper, Ji Shi only has one joke left in his mind——

Push me to do everything, except math problems.

Unfortunately, Ji Shi forgot all the mathematics in high school to the teacher.

The questions on the examination paper are all of this type——

Known set A={0}, set B={-1}, then A∩B=

If the complex number z satisfies iz=1+2i, where i is the imaginary unit, then z...

It is not an exaggeration to say that Ji Shi basically only knows the letters and numbers on the topic. As for what they mean when they are connected in series, that already belongs to his blind spot of knowledge.

And a major feature of Suzhou mathematics is that there are no multiple-choice questions, which completely shattered Ji Shi's idea of ​​gambling on luck. He couldn't help wondering, with his current level, could he score 20 points in mathematics?

Ji Shi looked at one question after another, and felt that the difficulty was a bit beyond the standard. What moved him was that he actually understood a question after reading a paper from the beginning to the end!

—Although there is nothing to be happy about.

Ji Shi sighed silently, and began to rummage through the boxes at home.Fortunately, he doesn't have the habit of throwing books away. He still keeps most of his books from junior high school to sophomore year in a big cardboard box. He hasn't looked through them for a while, and they are all covered with dust.

He has bought a lot of tutoring books, including reference books for all subjects, as well as reference books for junior subjects. After all, he hadn't completely given up struggling in his freshman year of high school. When he was not studying, he slowly put the study behind him.

"What are you looking for?" Mama Ji just came back to change her shoes, "Looking for the previous textbook?"

"There are also tutorial books." Ji Shi didn't look up, and after a while, he found textbooks and tutorial books in the cardboard box. It was not yet 10 o'clock, and the weather was already very hot, and the fan was blowing the wind. , Ji Shi felt that his mind was a little messed up, so he ran to the yard and played with the neighbor's cat in the shade.

At that time, their house was still an old house, and the old cat and kitten in the neighbor’s house would come out of the hole in the wall. The hole in the wall was so small that the kitten could get in easily, but the old cat had to shrink for a while before rolling out slowly.

Compared with ten years later, the current home is still much more lively.

Ji Shi rubbed the kitten's head, and he pasted word stickers on the wall, so that he could deepen his memory while playing with the cat.

Ten years later, he has the most confidence in himself in his concentration. In high school, he was easily influenced by external factors, but now, Ji Shi understands what he needs to do.

Studying is painful, but compared to the various injustices encountered after adulthood, being able to do the exams comfortably is a kind of happiness in itself.

"It's about to start again." Ji Shi sighed, and flipped through the math textbook just like he would an English textbook. Unlike the English textbook he read from the third year of high school, he started to read the math textbook from the first year of high school. The first unit was about collection, which was Ji The symbols such as ∩∪ that I saw on the practice paper, the second unit is the function, which is also involved in the exam paper.

Sure enough, after the content in the textbook was finished in the third year of high school, all the remaining exercises were for the college entrance examination.

For Ji Shi, it is also very difficult to read the book from scratch.

He remembered that in the middle and late stages of their third year of high school, almost all science subjects such as mathematics were reviewed without reviewing textbooks, because the content in textbooks was too simple-this is what Ji Shi and his math teacher said.

But Ji Shi was one of the scumbags after all, and he wasn't even sure of the contents of the textbook.

Math textbooks are fresh in his eyes.

Open a sufficiently new textbook, although there are notes on it, but there are only a few.Probably because they were worried that they would not be able to adapt to the pace of learning when they first entered high school, the text in the math textbook was very gentle, first introducing the concept of set with flocks of birds, flocks of fish, and flocks of sheep, and then explaining the meaning of the symbol ∈ step by step.

There are too many concepts that need to be memorized. In addition to reading textbooks, you have to look through extracurricular books to consolidate, and then do practice exercises. There are several math reference books in Jishi, and the explanations for each question are not the same. I think it's quite interesting.

But it was also during the review process that Ji Shi realized the urgency of time.

During the more than 20-day holiday, more than 5 sets of practice papers were issued for each subject. Ji Shi has only completed two sets of English papers. With his speed of flipping through math textbooks, it is impossible to start doing math papers tomorrow.

Is there still time for the test papers of other subjects?

Especially for Chinese, 5 sets of practice papers means 5 essays of more than 800 words, and writing 4000 words will at most make your fingers tired, but writing essays is not copying books.

Ji Shi couldn't help feeling a little dizzy.

He can also wait until the last two days of summer vacation before rushing to work. That's what he did before. Every time he went back to the dormitory to copy his homework on the last night of the vacation. Anyway, there are multiple-choice questions for subjects other than mathematics, and the copying speed is very fast. quick.

But now Ji Shi doesn't want to do this anymore, he doesn't want to finish his homework just to finish it.

Considering efficiency, Ji Shi was more focused, and he could not waste any more time.

He had read math books for so long that he even forgot to eat. There were densely written drafts on the white paper, and his fingers were a little sore, but looking at the textbook that was nearly half-turned, Ji Shi couldn't help feeling a sense of satisfaction.

It feels good to work hard sometimes.

"Shishi, it's time to eat!" Mama Ji closed the window outside the door.

Ji Shi responded.

The sun is getting hotter and hotter. The strong sunlight divides the eaves and the ground into black and white lines. The eaves can only block half of the way to the kitchen, and the other half must be exposed to the sun. Ji Shi felt that it was too hot.

On the persimmon tree at the door, the cry of cicadas became louder and louder every day.

Ten years later, the summer will be even hotter. It will be so hot that even the most stingy family in the village will install an air conditioner in the bedroom, but the cicada screams will be much less, because by then, the price of cicadas will be much lower. It is getting more and more expensive, and someone will go to the village to collect it, and the villagers will go out with a flashlight after dinner to catch cicadas.

On the contrary, Ji Shi and the others loved to catch sparrows when they were young, and there will be more and more magpies in the future.

Ji's father and Ji's mother planted watermelons after Ji Shi graduated from high school, because growing watermelons is more profitable, of course, the cost is also high, and people are more tired. They have to support the watermelon shed every day, open and close the shed every day, and never rest for a moment .

I remember that in May and June of that year, when Ji Shi and his dad made a video, he saw his dad standing by the side of the watermelon shed under the high temperature—because the magpie was so arrogant that if people didn’t pay attention, it would grab the watermelon and take a bite. .

A watermelon weighs about 10 catties. Even if the wholesale price is 1 yuan per catty, 10 yuan is gone. The key is that a magpie is not a human being. It will not just stare at a watermelon and sometimes lose a dozen melons a day. .

Even planting a scarecrow in the ground won't work, magpies are smart and know that scarecrows won't work after a long time.

Father Ji could only stand by himself in the field in the high temperature. The back of his neck was shiny and shiny, and he had a tumor, which hurt for almost half a month.

He had no choice but to find a way to catch a magpie and hang it on a tree, which effectively "deterred" the group of overlords.

Ji's father was smiling during the video with Ji Shi, but Ji Shi couldn't laugh. He even wanted to cry.

If only he could work harder...

So, now that he has the chance, he has to work harder.

……

The lunch at home was still hearty, and Ji Shi actually saw a bowl of crayfish. You know, the season for eating crayfish has passed.

"Yesterday, I told Old Man Sun that he would give me everything he gets online today." Mama Ji smiled, "And this—"

She lifted the lid of the bowl mysteriously: "It's a trap made by others to prevent weasels. A hare fell into it. I asked him to sell it to me."

Ji Shi looked at his mother: "I remember when I was a child, you wouldn't let me eat rabbit meat, saying that eating rabbits would hurt your eyes."

"Your eyes are broken anyway, eat more meat to see how thin you are now." Mama Ji scolded, "Remember to keep your eyes away when reading, I bought a bottle of eye drops at the crossroads pharmacy, remember to take it. "

"Got it." Ji Shi agreed.

There is nothing to say about the fucking craftsmanship. Although the taste is light and less spicy, it is definitely delicious.

When meals like this are served, only Ji Shi is at home, and when Ji Shi is not at home, she is reluctant to even buy meat. When Ji's father wants to eat meat, she will complain about the price of meat.

In addition to rabbit meat and lobster, on today's dinner table, there is also stewed fish soup, which is milky and white. The cold tofu tastes good. Throw some garlic cloves into it, which is a must for porridge.

But Ji's father and Ji's mother may not like these dishes, they are all Ji Shi's favorite food, the two of them eat tofu the most, Ji Shi put some rabbit meat for them, and urged Ji's mother to eat more lobster.

Lobster is a dish that Ji's father will never touch. Ji Shi knows this very well. His father only likes to eat convenient dishes, preferably those that have no bones or thorns and can be swallowed in one bite.

Now is the season when crabs are not yet on the market. Once the crabs are on the market, he will tell Ji Shi that there used to be crabs in the river ditch.

"Is there anything else I want to buy? I stopped by in the afternoon to buy it. We probably come back late in the evening, and the supermarket will be closed by then."

Ji Shi thought for a while, as if there was nothing to buy, he shook his head.

"Just soak the bowls in the pool. Don't wash them. I'll wash them when I come back. It's not bad for you." Mama Ji told Ji Shi when she put away the bowls. Ji Shi washed the bowls for the last few meals.

"By the way, there are a lot of mosquitoes in the evening. Remember to close the door early and don't let the mosquitoes in. If mosquitoes come in, light the mosquito coils." Ji's mother glanced at Ji's father, "There is change on the table in our room. Go get some popsicles."

Ji Shi shook his head: "Mom, I'm already 17, not 7."

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