Oh, so that s what it is like essay 500 words

It rained for a few days, and on Sunday the sun finally showed a bright smile, and my mother and I enjoyed the long-lost sunshine and enjoyed the rare leisure. Begin to play hide and seek, weaving through the grass and woods. Suddenly, I noticed a curious phenomenon, in the thick shade of the tree, I saw many, many oval light spots.

Why? I was anxious to ask my mother for help, but my mother smiled and said, "Child, you are already a first-grade elementary school student, don't rush to ask your mother when you encounter problems, but use your own brain first, and then look for information."

After listening to my mother's words, I looked closely, and I realized that the sunlight was shining on the ground through the gaps in the thick shade, but why were they oval-shaped? I hurriedly ran home, looked up the encyclopedia, and oh, it turned out to be a straight line propagation of light - small hole imaging. When light passes through the hole, the light from the upper part of the object crosses the hole and then continues to propagate backwards, so the image behind the hole is always inverted.

Moreover, the farther away from the aperture, the larger the image will become, no matter what shape the aperture is, the effect is the same, which is the principle of aperture imaging. I realized that the spots of light under the trees were not the parallel points of light cast by the sun's rays through the gaps in the trees, but many inverted images of the sun. Since the tree is tall and the canopy is at a distance from the ground, the spots on the ground are always much larger than the tree gaps.

The sun is round, so why is it oval here? That's because the sunlight is often tilted towards the ground, and if the sunlight is cast vertically on the ground, then the spot we see must be perfectly circular. It turns out that there is so much knowledge in the little spot.

My mother saw my obsession with this issue and led me to the flower and bird market. She asked me to carefully ** the goldfish in the round goldfish bowl. I noticed that the goldfish inside seemed to be very large, but when I used the net to find the largest goldfish, it was so small.

Why? My mother told me that it was a refraction of light. My mother also told me that there is light everywhere in our lives, such as when we see our own shadow in the sun, and chopsticks that bend and ...... in clear waterIt dawned on me that this was the case!

This morning, Teacher Ju walked into the classroom with a piece of paper, and his face was blushing, as if he was very annoyed. I was suspicious, hey, what's wrong with Mr. Ju today, ...... so angryBefore I could finish thinking about it, I heard the teacher throw a piece of paper on the table with a "snap", which startled the students. The teacher said:

Classes". But I didn't hear him shout hello to my classmates, but said angrily: "I don't know which classmate put this piece of paper in my drawer this morning, saying that I can't speak Mandarin well, and I should practice more."

What is this, I have taught for so many years, and no one has said that my Mandarin is not standard, you are even picky in the eggs! Whoever wrote stood up and said how bad it was!

The teacher's words were silent on the edge of the classroom that had just been noisy. But after a while, the students began to discuss: who is so bold as to dare to put a note in the teacher's desk, they will die.

Seeing the teacher making such a big fire, I was stunned: the teacher ate gunpowder today, and the usually approachable teacher Ju has simply changed his appearance today, so fierce. Isn't it just a note, what's the big deal, and the teacher's Mandarin is not standard, and the classmate told the teacher to let him practice more, and he also cares about the teacher's performance.

But then again, what classmate dares to take the initiative to stand up and admit that he wrote it himself in such a situation.

Finally, one of my classmates stood up. When I looked at it, it turned out to be Cong Cong. I really admired his bravery, and the teacher asked sharply, "Did you write it?" ”

No. The classmate whispered.

It's not what you're up for. ”

I think everyone will have to stand up anyway after a while, so I might as well stand up first. The classmate said again.

Anyone else who felt the same way as him stood up. The teacher said:

I was very conflicted in my heart, whether to stand or not to stand, and after thinking about it for a long time, I still didn't dare to stand. But another classmate also stood up. This is the teacher's brow gradually relaxed, revealing a faint smile.

As the saying goes: on a June day, a child's face changes when it is said. But the teacher is already a big man, and he has become so fast.

I really don't know what kind of medicine is sold in the teacher's gourd.

The teacher smiled and said, "Actually, no one wrote me a note, the two of them were just my eyeliners, I just had a whim, came to inspiration, and assigned you an essay." ”

Oh, I see. The students let out a long sigh of relief and smiled.

The above master's Gang, I don't talk about plagiarism, it's too shameless....

Oh, I see.

Whoa, whoa, whoa, ......whoa, whoa, whoa, whoIt's a cloudy day and it's drizzling, looking at the water droplets on the side of the road, thinking of our past, love is like a play, two people are just props.

The end was already predestined.

You said to me that you will always remember me.

Watching a movie at the end is not a luxury.

I don't say it, I just want you to have a better time.

Actually, there are times when I miss you.

Movies of love.

One person out can't do it.

My tears fall in the palms of your hands.

Instantly formed a block of ice.

Movies of love.

It doesn't matter if it's scattered or not.

One is quiet, the other is crying.

Closing movie dadada

Look at the water droplets on the side of the road.

Remembering our past.

Love is like a play.

Two people are nothing more than props.

The end was already predestined.

You said to me that you will always remember me.

Finally, watch a movie, which is not considered a luxury.

I don't say it, I just want you to have a better time.

Actually, there are times when I miss you.

Movies of love.

One person out can't do it.

My tears fall in the palms of your hands.

Instantly formed a block of ice.

Movies of love.

It doesn't matter if it's scattered or not.

One is quiet, the other is crying.

The end of the movie is sad all over the world.

You can write that you misunderstood a person, and later learned that you misunderstood him. By the way, are you a proposition or a theme? The subject can be written as a misunderstanding. Recommend Xu Ying's "Window Cleaning" or Adu's "The Secret of "Grande", both of which are written misunderstandings, you can take a look.

Hope it helps!