Chapter 69 At critical moments, they can save your lives.

Chapter 69 At critical moments, they can save your lives.

In the materials class, Teacher Chen Feng stood on the podium with a serious expression, his hands supporting the edge of the podium, his eyes swept over the students present, and said: "Students, before we officially start today's class, I want to ask you, have you carefully written down the information I sent you last time? Those are all important knowledge related to your survival in the wild. You will use them in every class, and you must remember them!"

The classroom fell silent instantly, and the students looked at each other. Zhao Yan lowered his head and muttered softly: "The information the teacher hands out is always a thick stack, how can it be so easy to remember it all?" Ye Yao sighed softly, flipped through the electronic notebook in her hand, and frowned slightly.

Cheng Yi looked helpless, scratched his head and said, "Teacher, there is too much information, we are trying our best to remember it."

Teacher Chen Feng shook his head helplessly and said, "Students, this knowledge is related to your life safety, so you can't be careless. You know, only a few students like Ye Yao have a good family background and space to store supplies. Most students don't have such convenient conditions when facing survival in the wild."

Hearing this, the students in the audience began to discuss in low voices, and the classroom was instantly filled with an atmosphere of tension and anxiety.

Zhao Yan couldn't help but frowned and said anxiously: "Teacher, what should we do if there is no food in the wild?"

Teacher Chen Feng raised his hand to signal everyone to be quiet, cleared his throat and continued, "This requires us to learn to use local materials. But you must remember that the outside world is not so friendly. Many seemingly ordinary things may contain strong radiation and are absolutely not edible."

Ye Yao curled her lips and said worriedly: "Ah? That's not very dangerous!"

Teacher Chen Feng nodded, his expression solemn, and continued to explain: "For example, some common wild fruits look bright and attractive, with colors as bright as gems and exuding charming fragrance, but once eaten by mistake, deadly toxins will spread in the body. And those seemingly edible roots and stems may also be covered with strange lines and spots on the surface due to long-term radiation contamination, which can cause serious damage to our bodies."

At this time, a classmate raised his hand and said in a trembling voice: "Teacher, how can we tell what we can eat and what we can't eat?"

Teacher Chen Feng glanced at him and replied, "This requires you to have a wealth of knowledge and keen observation. Some plants with thick leaves and full of juice may often contain too high a radiation level. For example, the common fat-leaf vine has large, green leaves that seem to be very nutritious, but in fact the radiation level exceeds the standard. There is also red berry, whose fruit is bright red and very tempting, but the toxins in it can make you vomit and have diarrhea."

Another student then asked: "Teacher, if there are no edible plants, what about animals?"

Teacher Chen Feng shook his head and said, "Most animals have also been affected by radiation, and their meat has mutated, making them extremely risky to eat. For example, although there are many radioactive rats, their meat is full of radioactive substances, and eating them will cause irreversible damage to the body. There are also mutant wolves, which have extremely strong attack power, and their meat cannot be eaten."

Cheng Yi scratched his head and said with a worried look: "This is too hard to tell."

Teacher Chen Feng said seriously: "So when you are in the wild, you must be cautious and careful. Any wrong judgment may endanger your life. Everyone must remember this knowledge. At the critical moment, it can save your life!" The students nodded one after another with solemn expressions, knowing the importance of this knowledge.

Teacher Chen Feng took a deep breath, walked to the laboratory table next to the podium, and began to explain while operating.

"Students, let's first choose the water vine fruit which has relatively high water content. The fruit of this plant is plump and juicy." As he spoke, the teacher skillfully picked up a water vine fruit, gently broke it with both hands, and the crystal clear juice flowed out.

"If there are purple-leaf orchids or spiritual heart grass nearby, you can extract some essences from them and mix them in." The teacher's eyes were focused and sharp, and his hands were flexibly fiddling with various plants.

Teacher Chen Feng closed his eyes slightly and concentrated his mind. An invisible force emanated from his body. Fine beads of sweat gradually oozed out of his forehead, and his facial muscles were slightly tense. His mental power was like a gentle airflow, surrounding the plants and accurately controlling the extraction and fusion process.

After a while, a cup of light green liquid was prepared. The robot next to it came over quickly, and its eyes shot a beam of light to scan the liquid, and then it made a "beep" sound: "It is edible, and the radiation content is 0.01%, which meets the safety standards."

The teacher picked up the cup of light green liquid, raised it to his lips without hesitation, and drank it all in one gulp. His Adam's apple rolled up and down, and the liquid flowed smoothly into his body. After drinking it, the teacher wiped the corners of his mouth, looked at the students firmly, and said loudly: "Students, you must dare to drink what you have mixed. This is a trust in your own achievements and a test of your own abilities."

The students were all eager to start practical operations.