A 200 word introduction to the appearance of flies, how to describe the appearance of flies as humor

Hello, you want to describe the appearance of flies, so how can you describe it humorously? If you look at flies up close, you will actually feel a little uncomfortable.

Observe the flies. On Friday, I finished my homework and I felt very hungry, so I went to make sugar water to drink, and after drinking the sugar water, I put the cup on the table, and a large swarm of flies flew up to the cup and covered the cup, and the cup immediately turned black, and I immediately took a plastic bag and grabbed many flies and looked at it.

When I was observing flies, I observed that the body of the fly is a little larger than that of a mosquito, the eyes are large and round, and the nose of the fly is thick, but the nose of the mosquito is pointed. The speed of the remaining flies is very fast, I want to kill it, but it is not easy to hit, the fly after a while, it flies into the garbage, and then it flies into the garbage, and after a while it flies to the urine, and it flies to the very dirty gutter, and then it flies to our heads, and it flies around buzzing, and finally it flies to our meal, it is so dirty and disgusting, I really want to kill all the flies in the world, I used:

I really hate flies, that's why I say this, I want to kill flies all over the world.

We must mobilize to kill the four evils: rats, flies, mosquitoes, and cockroaches. Among them, I hate flies the most, if you don't kill flies, there will be more and more, there will be more and more bacteria, people will get sick easily, I hope we can kill all flies, and give us a good living environment!

"Flies" is a poem, and the source of the work is "Snow Dynasty", Commercial Press, 1922 edition.

Categories: Education, Science, >> Learning Aid.

Analysis: From their individual perspectives: the smaller individuals in the group are generally males, and the larger individuals are generally male and female; Look at their bellies for males and females:

The belly of the male fly is small and flat, and the belly of the female fly is large and round; Look at their ** divided into females: male flies ** are round, female flies ** are pointed type.

1. Eggs: Eggs are milky white, banana-shaped or oval, and about 1 mm long. There are two crests on the back of the eggshell, and the membrane between the crests is the thinnest, from which the larvae emerge when they hatch.

The development time of the egg stage is 8 24 hours, which is related to the environmental temperature and humidity, and the egg does not develop when it is below 13, and dies if it is lower than 8 or higher than 42. The incubation time of eggs decreases with increasing temperature in the following ranges: 22 hours, 20 hours; 25 hours, 16-18 hours; 28 hours, 14 hours; 35 hours, only 8-10 hours.

The humidity of the substrate also had an effect on the hatchability of eggs: the hatchability was highest when the relative humidity was 75% to 80%. Hatchability is significantly reduced below 65% or above 85%.

2. Larvae: The larvae of flies are commonly known as maggots, and there are three instars in Lunqing: the first instar larvae are 1 3 mm long, and only the rear valve.

After molting, it becomes 2nd instar, 3.5 mm long, with a front valve and a rear valve with 2 lobates. The molt again is 3rd instar, 5 13 mm long, and the rear valve is 3 split. The body color of the fly maggot changes from transparent and milky white to milky yellow in 1 and 3 instars until it matures and pupates.

The 3rd instar larvae are long conical, with a thin anterior end and a truncated posterior end, without eyes and feet. Maggots like to drill holes, are afraid of bright light, and live in seclusion all day long in dark places where they breed. It is polyphagia, and the spoilage fermented organic matter of ** shape is its delicacy.

The larval stage is a critical period in the life of a fly, and its growth and development is directly related to the individual size and reproductive efficiency of the seed fly.