In the 15th middle school curriculum, there are three types of plant-related courses, namely agronomy, botany, and plant practice.

Cheng Han's favorite third course is the most.

The total number of hours of the course is almost equal to that of the first two combined.

This fully reflects the teaching philosophy of pragmatism.

The theme of today's plant practice class is - soft silk vine.

At this time.

In a small botanical garden on campus, the fields are neatly built with wooden trellises, and turquoise vines climb on them, turning the area into a vine forest.

A bald teacher was talking: "I think everyone should know that silk rattan is the most important raw material in the textile industry.

"Peel off the skin of the cane, then pull out the core of the vine, and then hit it repeatedly with a wooden hammer to get a delicate and soft silky ......."

The students stood in the vine forest and listened carefully to the teacher's words.

Cheng Han listened very carefully.

In another time and space, cotton is the most common textile raw material.

In this world, human beings have actually used vines and used soft silk woven fabrics, which are not inferior in softness and breathability to cotton cloth.

"It is important to remember that if the growth time of the silk vine is too short, the yield of the silk will be low and it will not be economically viable.

"If it grows for too long, the silk will become too tough, and the fabric will be stiff and less comfortable.

"As a rule of thumb, the optimal growth period for silk vines is five to six months......"

At this moment, Cheng Han suddenly felt a throbbing in his heart, and an illusory scene appeared in front of him.

After a few moments, the illusion dissipated.

A message immediately popped up: "Proficiency +2, current proficiency is 70/1000, spirit value is 6.4/13.8." ”

This is another passive activation of the omniscient eye.

Cheng Han looked at a classmate beside him and shouted urgently, "Liu Wenyou, give me the knife." ”

In this practical class, because the students needed to learn how to deal with the silk vine, the teacher distributed twelve long knives, and Liu Wenyou happened to receive one.

The man was stunned for a moment, and obediently handed over the long knife.

In the past, Cheng Han was just a marginal person in the class, and Liu Wenyou definitely didn't bird him.

But now, he has become a celebrity in the class, and his prestige has increased greatly, and Liu Wenyou instinctively obeys his words.

And this sudden change made the students look at it in surprise.

Cheng Han picked up the long knife in Liu Wenyou's hand with an almost "grabbing" posture, and strode towards a soft silk vine a few meters away.

The bald teacher was stunned for a moment, and subconsciously asked, "Cheng Han, what are you doing with a knife?" ”

Cheng Han didn't care about explaining, and raised the long knife with both hands.

Many people exclaimed when they saw this scene.

"Oh my God!"

"What is Cheng Han doing?"

Cheng Han turned a deaf ear to this and slashed hard.

At the same time, he activated the True Flame Remnant Seal.

Extraordinary power descended out of thin air, and the blade became scorching a little, and faintly emitted an extremely faint light, but due to the extremely fast speed, no one in the class noticed.

In the next second, something bizarre happened.

The silk vine suddenly came to life, and the vine body seemed to have turned into a snake and writhed sharply.

Some of the forks of the cane stems, as well as a large number of leaves, quickly gathered together, making a "rattle" sound, and instantly put together a strangely shaped object.

It looks somewhat similar to some kind of animal.

There is a body.

There are also limbs.

There was also a huge head, and its mouth was wide open at Cheng Han, and several rows of sharp spikes could be seen in it.

As you can imagine, if you are bitten by it, the taste will definitely not be pleasant.

At this moment, everyone, including the bald teacher, was stunned.

Cheng Han didn't show any panic, and the long knife in his hand slashed at the silk cane.

"Click!"

The cane stems are neatly cut in two.

He vaguely sensed that the power of the True Flame Remnant Seal seemed to be rapidly eroding the vitality of the vines.

The vine monster was hit hard, and the branches and leaves of its whole body trembled violently, but it still stretched out its head unwillingly, trying to give the enemy a hard bite.

Cheng Han flexibly took a step back, picked up the long knife with his backhand, and gave it another knife.

"Bang!"

The head of the vine monster exploded.

The knife seemed to have caused a chain reaction, and its body disintegrated, and its leaves and broken branches were scattered all over the ground.

It's dead!

Cheng Han stood with a knife in his hand, and his heart jumped with a "bang".

This is a normal thing.

Participating in a battle for the first time, it is inevitable that I am a little nervous.

The audience was silent.

The bald teacher swallowed a mouthful of saliva and opened his mouth to break the calm: "Cheng Han, was that a 'straw dog' just now?" ”

Cheng Han turned around and bowed his head and said, "Yes, Teacher Zhang." ”

There was an immediate commotion in the crowd.

"It turned out to be a straw dog!"

"I've seen it!"

The bald teacher's tone was a little afraid: "Vine plants can turn into extremely aggressive grass dogs in extremely rare circumstances, I really didn't expect one to be born in the botanical garden." ”

He showed admiration again: "Cheng Han's approach is very correct, the newborn grass dog cannot be separated from the vine, as long as the cane is cut in time, it will die soon." ”

Cheng Han's expression was calm.

He knew that the reason why that knife could kill the grass dog in an instant was because of the True Flame Residue, otherwise it would be able to jump for a while and probably bite a few students.

All the students looked at the past, and there was a faint hint of looking up.

In the eyes of everyone, the first step to find the grass dog, and then draw the knife to cut it, this is like a legendary story, how can it not make the students yearn for it?

The bald teacher changed his words: "Ladies and gentlemen, I am very sorry, today's practical class must be suspended, please leave the botanical garden in an orderly manner and return to the classroom."

"There were grass dogs here, and I had to report it to the school immediately and do a full inspection of the botanical garden to make sure there were no safety hazards."

The students quickly left the botanical garden.

Cheng Han deliberately fell last, reached out and picked up a leaf left by the grass dog, and then walked to the gate.

The bald teacher noticed this scene, his lips moved, and finally he did not speak.

According to the rules, this is a relatively sensitive item, which should be collected by the school and then destroyed.

But Cheng Han single-handedly killed the straw dog and solved the big trouble for the school, and the bald teacher chose to turn a blind eye and didn't see it.

*

Due to a short delay, Cheng Han was the last to arrive at the classroom.

The moment he appeared, the classroom, which had been noisy, suddenly fell silent for a moment before it resumed its noise.

Such a posture has the meaning of a big guy's appearance.

Cheng Han calmly walked to his seat.

He had only walked a few steps when he heard a voice: "Cheng Han, how did you find the grass dog in the botanical garden just now?" ”

It is the short-haired girl, Wan Tengjiao.

The classroom fell silent again.

Everyone waited for Cheng Han's answer.

Cheng Han was stunned for a moment, and replied lightly: "My senses are more acute. ”

Wan Tengjiao pondered: "It seems that your sensitivity to the source energy is stronger than I expected, maybe it won't take long for you to successfully condense the source sense seal." ”

Cheng Han smiled: "Maybe." ”

He had a hunch that he would be able to seal the seal in one month at the earliest, or three months at the latest.

Hearing this, the students all cast envious eyes.

Originally, many students criticized him in private about being selected by Qiu Yuan and obtaining the qualification to observe the Xuanbi of Zhenshan, suspecting that most of them were black-box operations.

But his performance in moderation convinced everyone.

After Cheng Han returned to his seat, Qian Qingqing stared at him directly, his eyes were quite strange.

Cheng Han asked strangely, "What are you looking at me?" ”

Qian Qingqing sighed: "Today I found out that you are the most hidden person in the class. ”

Cheng Han smiled but said nothing.