What fish always swim together, and what fish swim around somewhere

Seventy percent of the earth's surface is made up of oceans, and there are more than 20,000 species of fish living in such vast waters, most of which have the habit of swarming in groups. Why do fish like to flock together? Scientists have done a lot of research and believe that there are many reasons.

For fish, the greatest significance of swimming in a group is self-preservation. Thousands of fish gather together and are so powerful that they are not vulnerable to predators. Fish have many eyes and are easy to find enemies and save life.

Even if some of them are eaten by the ferocious invaders, they can be sacrificed in exchange for the safety of the whole, so as not to cause the extinction of the population. Some scientists believe that fish swim in groups to forage for food, and that large schools of fish can increase the chances of finding food. When the fish find the bait, they will notify their companions so that they can eat it in groups.

Some scientists believe that when fish swim in groups, they can use the movement of their companions to reduce the resistance to move forward, which can save physical strength and facilitate long-distance swimming. At the same time, from the perspective of protecting future generations, small fish mixed with large fish are not easy to be eaten by predators, which is conducive to the reproduction of the population. Moreover, the vast expanse of the ocean provides excellent environmental conditions for fish to thrive, and with the ocean as a backdrop, even the largest schools of fish become insignificant.

Fish are generally oviparous, and after the female lays eggs, the male is re-fertilized, and the colony life is convenient for the fish to reproduce, and if they do not swarm, they will not survive.

It's their freedom.

As follows:

1. The fish swam as fast as lightning in the air, and it passed by with a flash.

2. This fish swims as fast as a waving dragon, and the dragon flies and dances in the water.

3. This fish swims as fast as a heart-piercing arrow, and swims a long distance with one kick.

4. This fish swims as fast as a twinkling star in the night sky, constantly swimming and flickering.

5. This fish swims as fast as a light delphinium, swimming in the clear water.

Partial sentence expansion:That is, divide the sentence into two parts, the subject part and the predicate part, and expand the first part first, and then the later part. For example, "Xiao Ming reads", the first part is "Xiao Ming", first add who Xiao Ming is and his relationship with me, so that the first part can be expanded to "my classmate Xiao Ming".

The latter part could be supplemented with "where" and "how to read", while the second half could be supplemented with "study carefully in the classroom". The whole sentence is expanded to "My classmate Xiao Ming is studying seriously in the classroom".

The fish swam like lightning, here and there.

, this fish swims fast, like what? Like a dragon, there are come and go to see, and it looks particularly good.

The fish swam as fast as an arrow. I hope you will adopt it, thank you.

As follows:

1. Happy little fish swim around in the beautiful river.

2. Happy little fish swim around in the clear river.

3. Flexible little fish swim around in the crooked creek.

4. Fish swim happily in the clear water.

Ways to supplement sentences:1. Determine what components are missing in the sentence and supplement them according to the context.

2. If you need to use rhetorical devices, you need to make connections according to the characteristics of things, and then use rhetorical devices to express them.

3. After completing the sentence, you can read it several times to see if the sentence is written smoothly and vividly.

Fish swim by swinging their tail fins.

The fish relies on the swing of the fins to generate forward momentum, and the fish floats and sinks by the swim bladder, and the air inside can increase or decrease, thus helping the fish to swim between different water layers. Thanks to the coordination of muscles, bones, fins and swim bladders, fish can move freely in the water.

Fish

Fish are body covered with bone scales, breathe with gills, swim through the swing of the tail and trunk and the coordination of fins, and feed on the upper and lower jaws, belonging to the vertebrate subphylum of chordates, and generally people divide vertebrates into five categories: fish (53%), birds (18%), reptiles (12%), mammals (9%), and amphibians (8%).

Distributed in the waters of the world, according to the statistics of the late Canadian scholar "Nelson" in 1994, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish continue to be discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than 10 years, and there are about 32,100 species of fish named in the world at present.

According to the species, fish are mainly divided into: tropical fish, temperate fish and cold ribbon fish; According to the living habits, it can be divided into: freshwater fish and saltwater fish.

Fishes are the oldest vertebrates. They inhabit almost all aquatic environments on earth, from freshwater lakes and rivers to saltwater seas and oceans, and about 32,000 species of fish have been found in the world.

In the crooked river, a few small fish swim around in the water, dancing like butterflies.

In the clear river, a few small fish swim around, looking at the colorful clothes, just like a few beautiful princesses in the crystal clear stream, a few small fish in red neon clothes chase each other and play with each other.

A few small fish in the creek, you kiss me, and I peck you and swim around. Among them, "you kiss me, I peck you" uses anthropomorphic sentences. The anthropomorphic sentence is to write the thing as a person, giving the thing that is described and written in a rough way human emotions, behaviors and actions, and the "fish" in this sentence uses "kiss me, peck you" These behaviors make the expression of the sentence more vivid and lively.

Lively fish swim around in the crystal clear lake. Its characteristics: fill-in-the-blank questions are small, spanning large, covering a wide range, flexible in form, can synthesize some questions purposefully and harmoniously, and highlight the training of our accurate, rigorous, comprehensive and flexible ability to use knowledge and basic computing ability.

In terms of fill-in-the-blank content, there are two main categories: one is quantitative fill-in-the-blank and the other is qualitative fill-in-the-blank.

Its characteristics: fill-in-the-blank questions are small, spanning, wide coverage, flexible form, can be purposeful and harmonious synthesis of some problems, highlighting the training of our accurate, rigorous, comprehensive, flexible ability to use knowledge and basic computing ability. In terms of fill-in-the-blank content, there are two main categories:

One is quantitative fill-in-the-blank and the other is qualitative.

It only writes the answers, lacks the target information provided by the options, and it is difficult to judge whether the result is correct or not. If you want to answer fill-in-the-blank questions quickly and accurately, the basic strategy is to work on the word "skillful".