After a while, the radio came "Exam begins." ”

Then, the invigilator dressed in a foreign style distributed the Chinese papers very neatly.

Smelling the slightly lavender-scented rolls, Xiao Zhen was also refreshed.

Picking up the paper in his hand and looking at it, Xiao Zhen found that the exam in this interstellar middle school was not very difficult.

Although this modern reading is another unseen passage from "20,000 Leagues Under the Sea", Mr. Peng has already said that the probability of encountering the article he has read in this modern reading is almost zero.

After circling a few questions that require a certain amount of thinking, the others are swept away by the small real wind.

When I took a closer look at this modern text, Xiao Zhen found that this paragraph mainly talked about a submarine called Nautilus.

Naturally, because of the interest in the nautilus, I am also more interested in this article Xiaozhen.

The main content of this modern reading passage is the process by which the crew finally chiseled through the ice around the Nautilus through positive thinking and hard work to finally get out of trouble.

Xiao Zhen carefully read the paragraphs, looking at the answers to the modern text he wrote secretly, and was very satisfied.

After basically finishing the Chinese paper, Xiao Zhen began to think carefully about the problems related to the nautilus.

"Why have all the carnivores that once landed on Earth disappeared except for the nautilus?"

It didn't take long for the voice to come over the radio, "The exam is over, please ask the invigilator to collect the papers." ”

So, after the invigilator dressed in a foreign style accepted the test papers, Xiao Zhen ran downstairs to find Lao Wu.

Eventually, Lao Wu was found sitting under a huge pine tree not far from this saucer-shaped main teaching building.

"How was it, how did you do in the exam, what did you do in the exam?" asked Lao Wu.

"I didn't do well in the exam, what a nautilus did I get in this modern reading. Xiao Zhen said to Lao Wu.

"The world's first nuclear submarine, the Nautilus?" Lao Wu seemed to be in good spirits when he heard this, and his eyes flashed with golden light.

"No, it doesn't seem to be a nuclear submarine, this passage about the Nautilus is taken from "20,000 Leagues Under the Sea". Xiao Zhen said.

"Oh. That's a relatively realistic science fiction, and the author Verne is the father of science fiction. Do you want to buy that book?" asked Lao Wu with a smile.

"Didn't think much of it, just was impressed because of the nautilus. Xiao Zhen said.

"Well, that's right. Okay, are you hungry? Lao Wu said.

However, before Xiao Zhen and Lao Wu could go far, the students of Interstellar Middle School handed over two boxed lunches and said, "This is the standard meal of the school." ”

"Doesn't your school have a cafeteria?" asked Lao Wu.

"No, in order to save time, we all delivered lunch to the corridor at the same time as class, and everyone continued to study after eating in the corridor. An interstellar middle school student with thick eyes replied.

"Then why did you send us downstairs?" asked Lao Wu again.

"This is the task assigned by the teacher today, which is to let those of us who participate in volunteer activities deliver Chinese food to you. The eyed student continued.

"Okay, if it's okay, I'll continue to deliver the lunch box. The eyed student continued.

"Okay, you go get busy. Lao Wu said.

So, Lao Wu and Xiao Zhen ate a boxed lunch under the shade of the tree.

"Unexpectedly, there are chicken thighs again, and it seems that the food here is also good. Xiao Zhen said.

"Haha, of course these schools have to show their best side, otherwise how can they deceive you children who are not deeply involved in the world. Lao Wu said with a smile.

Xiao Zhen didn't reply, just ate a big bite on the side.

After eating, Xiao Zhen leaned on Lao Wu's arms and slept beautifully.

At one o'clock, Lao Wu woke up Xiao Zhen.

Although his brain was still a little dizzy, the little real spirit had basically been raised, and he rubbed his eyes and sat up.

Under the urging of Lao Wu, Xiao Zhen walked into the flying saucer-shaped teaching building step by step.

Since the math exam is about to take place, the basic formula is still slightly flipped over.

At one o'clock, the teacher dressed in a foreign style came to the classroom with a stack of math papers.

As the announcement of the opening of the exam sounded, the paper was sent down, and at a glance, it seemed that a lot of articles had been done in the paper on the law of addition and combination.

However, this is not difficult for the little truth, and the problem was quickly solved by the little truth one by one.

So, the rest of the time was spent there boringly scribbling on scratch paper, pinching the rubber and turning in circles.

Although this foreign-dressed teacher also came to tell Xiao Zhen to check it well, but for the test papers that mainly test the law of addition, this inspection is of little significance.

Finally grinding to the time when the paper could be handed in, Xiao Zhen immediately slipped down.

"Why did you come out so early. Lao Wu looked at his watch and said in disbelief.

"It's a simple topic, and I'd like to see dinosaurs this afternoon. Xiao Zhen said.

"Okay, let's go to that museum today. Lao Wu said.

So, the two walked out of Interstellar Middle School and embarked on the road to the museum.

After walking to the museum, Xiao Zhenjian found that the label was different, and it became a fossil-cultural relics exhibition with the theme of "The Origin of Mankind".

So Xiao Zhen asked the conductor: "What about those dinosaurs?"

"The dinosaur exhibition moved the day before yesterday, and the theme of the new exhibition was changed yesterday. The sister who sold the ticket said.

So Xiao Zhen didn't seem very happy.

However, Lao Wu still took Xiao Zhen to visit.

At first, it was a very gray exhibition hall, and a picture scroll unfolded around it.

Appearing on the wall is a prehistoric shark that is said to be the ancestor of all chordates.

The flexible jaw gives this shark an unprecedented predatory advantage, and so the story unfolds.

And the brightness of the exhibition hall is gradually increasing.

Over time, the background in the picture gradually changes from the deep sea to the shallow sea to the bay. The animals in the pictures gradually appeared on their limbs, and the little reality became more and more interested.

Finally, an unknown prehistoric beast with five fingers on its front and back paws climbed onto land and made its home on land for the first time.

"What if this one who only climbed onto land had five fingers on all four limbs?" Xiao Zhen asked Lao Wu.

Then you may have more or fewer fingers. However, there is also the possibility that this well-prepared landing will fail. Lao Wu thought about it and said.

"I think there may have been a lot of various behemoths on the continent at the same time. However, the others did not go on for one reason or another. Xiao Zhen thought about it and said.

"You're right, you look at the edge of this picture, there are all kinds of other different beasts. However, this one is the only one that has succeeded in making its offspring go to the next stage. Lao Wu said.

More and more animals appear in the next few images, along with fossils.

Finally, see the common ancestor of reptiles and mammals.

Next, dinosaurs grew bigger and bigger to reach the top of the planet, while mammals did the opposite.

The earliest mammal fossils of dinosaur contemporaries on display in the exhibition are small beasts less than a decimeter in length.