This weekend is undoubtedly another chemistry weekend.

Li Zheng truly felt why it is called the boundless sea of ​​learning.

With the deepening of his studies, he became more and more aware that he was ignorant, even though he had 200+ credits in chemistry.

The previous study of chemistry in high school was just to memorize the most superficial knowledge.

For example, c+o2→co2, it would be good to know that burning charcoal can produce carbon dioxide.

The current competition study is to explore why this is the case.

As the old man from the library said, human beings become stronger by questioning "why".

During the chemical process of burning charcoal, what changes occur in the chemical bonds, what is the final structure, and why is it like this.

A small amount of carbon dioxide can analyze these things, not to mention mg2b2o4(oh)2 in the test paper.

Through this series of principle analysis, after mastering more basic chemical knowledge, you can make inferences from one to a hundred. You can describe the reaction process and give the reaction results without memorizing any reaction formulas.

This kind of refining and mastering of abstract principles is exactly the way for human beings to win in the face of the infinite universe and infinite knowledge.

If we say that the sea of ​​learning in Li Zheng’s eyes before was an endless sea level.

Now, I dived in and witnessed an underwater world that is thousands of times deeper.

At this moment, I realize that the ocean of learning has no boundaries and no bottom.

But this did not dampen Li Zheng's enthusiasm at all.

On the contrary, he became even more excited.

The saying that there is no limit to learning and that you will only be able to reach the shore when you turn back is, of course, nonsense.

When you immerse yourself in learning, your goal is not to reach a certain shore.

But enjoy the joy of learning.

If simply learning to paddle is not enough fun.

Why not try jumping in and diving?

The scenery on the sea is inevitably the same.

This underwater world is much more enchanting, with all kinds of wonderful things.

Facing these brand-new scenery and unknown yet exquisite knowledge, Li Zheng had no extra thoughts at all.

That's right.

…

Monday morning, Class 4, Grade 2.

Li Zheng is different from the past. Now he comes to school at 7:50.

After all, he no longer needs to study by himself early.

A more adequate sleep and a more nutritious breakfast are the keys.

As class approaches, the students are all talking about the midterm exam.

"It is said that the results have come out..."

"I'm so panicked."

"The parent-teacher conference is obviously next week, why are the results coming out so soon..."

"Long-term pain is worse than short-term pain. I just want to announce it in one breath and have a good time."

Unlike these anxious classmates, Li Zheng walked into the classroom with a glowing face, and neatly pulled out his chair and sat down, placing various books and brushes on the table one by one.

Zhang Xiaoke was very envious of his appearance.

This complexion is as if he had eaten a big stick bone, had a full-body spa treatment, and had a good night's sleep.

"Master, did you go on a trip over the weekend?" Zhang Xiaoke inquired, "Or went to a hot spring? Why do you look so good?"

"No, I've been studying." Li Zheng gently stroked the top of his head, "When you say that, I seem to have more hair."

Zhang Xiaoke swallowed and spat: "What do you mean...learning health regimen?"

"Studying and keeping in good health... is a bit interesting." Li Zheng rubbed his chin and thought, "You see, doing Tai Chi and other things can keep in good health. I will create a "Learning and Keeping Health Method" and let the uncles and aunts gather together every morning.

It’s not a bad idea to study together and prolong your life.”

"Uh..." Zhang Xiaoke didn't dare to think deeply at all. He just lowered his head and clenched his fists and said, "The midterm results may be announced at any time. Aren't you nervous?"

"Not at all." Li Zhengchang laughed, "After all, studying on the weekend has resolved the turbidity of anxiety in my body. It not only purifies my mind, but also relaxes my muscles and activates my blood circulation..."

"That's enough, Master..." Zhang Xiaoke clutched his head and lay on the table.

When Li Zheng saw this, he also stopped testing.

Yes, he is testing.

In order to challenge the succubus, and to inspire more people to indulge in learning, he deliberately studied some marketing courses during the weekends, combined with some cases from contemporary martial arts sects, to "strengthen the body", "health care" and the like.

The name seems to be a tried and tested method to attract people to join.

Now it seems that, at least among high school students, this trick is not very effective.

It's a pity, my hair has obviously grown thicker.

Learning to maintain health may be one of the few health care methods that has been scientifically proven.

At this time, a demonic wind blew by.

Turning around to look, Lin Yujing hurriedly hurriedly stepped on the ready bell and sat down on her seat. When she was pulling out her schoolbag to get her pencil case, her mouth was drooped, her face full of exhaustion: "Well..."

Li Zheng looked straight at it and sighed.

You see, this is a negative example.

She must have a wrong attitude towards learning and does not experience happiness, so naturally she cannot maintain her health.

"Master..." Zhang Xiaoke also secretly looked at Lin Yujing and whispered to Li Zheng, "Honestly, how much do you think you are lower than Lin Yujing this time?"

"Haha." Li Zheng smiled but said nothing.

"You don't think you can surpass her, do you?" Zhang Xiaoke asked in surprise.

"Who knows."

"?" Lin Yujing's ears twitched, and she suddenly turned around and glanced at Li Zheng. Her depressed expression became bright again, then she shook her head, hummed a little tune and put the stationery away, "Yeah, yeah, yeah~"

On the contrary, Li Zheng's expression turned ferocious.

He came up with a terrifying hypothesis.

Happiness is conserved.

Lin Yujing didn't seem to take pleasure in learning, but in Li Zheng.

With a few simple guilty expressions, she took away the happiness that Li Zheng had worked so hard to learn.

It's really despicable.

Just as Li Zheng was thinking about how to regain his own happiness, the class suddenly became quiet.

Looking up, I saw Tang Zhifei walking into the classroom covered in dust.

Perhaps because today was very important, she put on her formal clothes again, and her eyes were extremely serious, as if she was attending class for the first time.

After Tang Zhifei put down the materials, he clapped his hands and said, "Since everyone is here, let's start class two minutes early."

A moment of silence.

Tang Zhifei rested his hands on the podium, his eyes scanning each student seriously and seriously.

On everyone's faces, there is anxiety but also expectation, desire and fear.

However, the wheels of history are rolling.

There's no escaping it, babies.

Tang Zhifei raised his hand expressionlessly and showed a large, densely packed form: "The midterm results came out yesterday afternoon."

The people in the class immediately started chatting.

"So fast……"

"Teacher Tang doesn't look very good..."

"How are you going to spend this parent-teacher meeting?"

When the students are getting more and more anxious.

A few people, however, remained unmoved, just waiting to be announced.

Especially Jiang Qinghua, her fists have already been clenched.

it's time.

I have never worked so hard on an exam.

Tutoring classmates has never been so sacrificed.

You two are messing around with the Olympiad.

You will feel it for yourself soon.

What does pain mean?

Jingle Bell
Chapter completed!