There is only one gentleman in the school, named Zhang Jinglin, and the teacher teaches the class alone in the school.

Others think that Mr. Zhang is amazing and knows everything. But Ren Xiaosu has always had questions. He says that he has a specialty in his profession, and a person's energy is limited, so Mr. Zhang cannot be omniscient and omnipotent, right?

Ren Xiaosu has always been different from others. He likes to reflect when looking at problems. Later, he heard Mr. Zhang’s lecture and realized that this is called dialectical viewing of problems.

Yan Liuyuan is sometimes confused because Ren Xiaosu often refutes Mr. Zhang Jinglin's views, but he still comes to listen to Mr. Zhang's class when he has time...

During class in the afternoon, Ren Xiaosu took Yan Liuyuan to celebrate, and for nothing else, he could listen to classes in the yard in the future.

On weekdays, I squatted on the wall and got too far from the classroom, so I couldn't hear it clearly. It turned out that Zhang Jinglin liked to close the doors and windows tightly when he was giving lectures, because he was afraid that the outside movement would affect the students and cause everyone to be distracted.

But later he found out that Ren Xiaosu would leave a window after eavesdropping.

Now, I simply called Ren Xiaosu to the yard.

Many parents of children are in this chaotic world and send their children to school not to learn from them, but to send them here to facilitate their children's future marriage. Especially girls who have been to school can usually make a good family.

In this era, it was already very good to know the three-digit arithmetic when reading books and reading literacy.

Everyone is busy living, and they are almost out of food. Who cares about whether you are educated or not?

Therefore, most parents do not have long-term plans to send their children to school. There are also poor and rich people in this small market town, and there will be comparisons in places where there are people.

Yan Liuyuan watched Ren Xiaosu buy a cigarette with a filter at the grocery store. Lao Wang also said proudly that the cigarette he had never added any large materials and was very safe.

A 20-point line is precious if it is rare.

Yan Liuyuan asked in confusion: "Brother, why are you buying cigarettes?"

"Your husband asked me to go to the yard to attend classes. I'd forget it if I don't pay the tuition fee, I have to express my feelings," Ren Xiaosu said with a smile: "I know Mr. Zhang likes to smoke."

In Ren Xiaosu's opinion, if others express goodwill, they will repay you.

The two of them went to the backyard of the school while everyone was having lunch. Mr. Zhang was eating fried cabbage. Ren Xiaosu took the initiative to smile and handed the cigarette to Mr. Zhang.

Zhang Jinglin did not refuse, but asked Yan Liuyuan to stay away: "You are growing up and smelling the smoke is not good."

Ren Xiaosu thanked and said, "Thank you, sir, for letting me go into the yard to listen."

"Huh," Zhang Jinglin lighted the cigarette with the matches that made a fire and cooked at home, and then breathed a breath of smoke happily: "Now there are not many students who love to listen to it like you. If you want to listen, just listen. You will stand at the door in the future, but you are not allowed to enter the classroom."

"Okay," Ren Xiaosu responded, "Sir, I have a problem."

"You said," Zhang Jinglin probably had a rare cigarette. Now he didn't mind what Ren Xiaosu asked.

"Sir, you said that before the catastrophe, there were a lot of technology in humans, and we humans were not dead, so why are there no reappearance of those technologies now?"

Zhang Jinglin glanced at Ren Xiaosu: "In the period after the disaster, humans themselves have not accurately calculated how many years we have lived through. It would be great if we can survive every day. How can there be anyone who studies?"

"But we should still keep some information? Can't we quickly recreate civilization by learning it?" Ren Xiaosu was curious.

"It's a generation," Zhang Jinglin said with a pity: "I'll ask you, I'll give you a set of information on making planes. Can you build planes?"

"I haven't learned it before. Although there is information that can save a lot of time, I also start from scratch," Ren Xiaosu said.

"Yes, now everyone is learning from scratch," Zhang Jingling looked at the smoke with only half of her left, feeling a little distressed, as if she was hesitating to smoke or not.

He wanted to keep half of it and then draw it, but would it be a bit shameful to do this in front of Ren Xiaosu and Yan Liuyuan?

Ren Xiaosu was still puzzled: "Didn't anyone really overcome the difficulties and difficulties in those years and continue to do research?"

"No, they all starved to death," said Zhang Jinglin.

"Is that all the knowledge has been cut off now?" Ren Xiaosu was unwilling to accept it.

Zhang Jinglin looked at Ren Xiaosu seriously this time and said meaningfully: "They are in the hands of a few people."

...

"Okay," Zhang Jinglin stood up and said, "Don't ask about this, it's time to start class."

Ren Xiaosu pestered Zhang Jinglin and asked his last question: "Sir, when was the wall of our refuge barrier built? Why did we build this wall?"

"After the disaster, wild beasts were rampant. It is said that there was a tide of insects a long time ago. Humans had to build high walls to block the danger," Zhang Jinglin explained.

"But most wild beasts actually won't actively attack humans even if they evolve," Ren Xiaosu was curious. Monkeys still eat vegetarian food, and sparrows still like to eat grains. They don't actively eat humans.

Now the barrier of shelter No. 113 is in the "circle" of human survival, and most of the more ferocious beasts are actually excluded from "outside the circle".

The higher the serial number, the more dangerous the shelter barrier, the legendary shelter barrier No. 178 is killed or injured many people every year due to the expulsion of wild animals.

And the shelter No. 113 is actually considered a "mainland".

There are still many dangers, such as wolves, but they are not insurmountable. In this case, why does such a large human settlement still have high walls?

Zhang Jinglin smiled and said, "As long as there are dangers in the wild, refugees can only rely on refugees to live on refuge barriers. At this time, refuge barriers will have a lot of cheap labor. Do you think the consortiums behind the refuge barriers do not have the strength to completely eliminate the dangers in the wild? Human thermal weapons are even more powerful than you think, but why do they need to eliminate them? They can't threaten them."

Ren Xiaosu was already in deep thought when he heard this. Although he was precocious, he was destined to not understand some things he had never touched before. This is also the reason why he longed for knowledge.

Zhang Jinglin continued: "They will not push the wall down. How could the vested interest class in the wall give up this natural class barrier?"

As he said that, Zhang Jinglin went to change his clothes, Ren Xiaosu said curiously: "Sir, why are you changing clothes? That one was not dirty just now."

Zhang Jinglin tidied up his collar and said, "I just smelled of smoke from my body, and the students smelled it badly."

Yan Liuyuan was solemn and Ren Xiaosu suddenly felt a little unhappy: "Then is it okay if I smell it? Sir, you didn't let me stay away just now."

Zhang Jinglin thought for a long time: "Get out."

At this time, Ren Xiaosu suddenly heard the palace in his mind speak again: "Task: Desire for knowledge is never a bad thing, but what you learn is to teach people."

Ren Xiaosu was stunned for a moment. He didn't understand what the mission was to make him do.

...

During class in the afternoon, the students felt very fresh. Ren Xiaosu, who was several years older than them, stood outside the door, so many students turned to see him.

Zhang Jinglin knocked on the blackboard several times before stopping the curiosity of these students. He said: "Survival class this afternoon."

This is the uniqueness of this era and the school. It not only teaches literature and science, but also teaches survival.

However, this class has always caused a headache for Zhang Jinglin because he has never lived in the wild. He was born in this market town outside the shelter barrier. Now his life has gone through more than 30 years. When he was a child, he relied on his parents and grew up to become a teacher. He is really not very good at survival in the wild.

Therefore, most of the time, we can only use the information we have retained before to read the script.

Zhang Jinglin looked at the students in the classroom: "Study attentively and don't feel that danger is far away from you. Now you have parents to protect you. When you become an adult, you must learn to protect yourself. Today we will talk about what to do if you encounter a wolves in the wild."

The students in the audience actually like to listen to the survival class the most. Other courses are still too boring for their age, and the survival class sounds interesting.

At this time, the classroom was silent. Zhang Jinglin looked at Ren Xiaosu who was standing against the door and listening to the lecture: "Come on, tell me, what should I do if I encounter a pack of wolves in the wild?"

Ren Xiaosu thought for a while and said, "We should try to choose a hillside with trees around us, because it is better to choose a cemetery in this way."
Chapter completed!