⭐关于鲨鱼的英语作文50字左右

关于鲨鱼咏衣的英语作文

1.

鲨鱼皮泳衣是人们根据其外形特征起的绰号，其实它有着更加响亮的名字：快皮， 它的核心技术在于模仿鲨鱼的皮肤。生物学家发现，鲨鱼皮肤表面粗糙的V形皱褶可以大大减少水流的摩擦力，使身体周围的水流更高效地流过，鲨鱼得以快速游 动。快皮的超伸展纤维表面便是完全仿造鲨鱼皮肤表面制成的。此外，这款泳衣还充分融合了仿生学原理：在接缝处模仿人类的肌腱，为运动员向后划水时提供动 力；在布料上模仿人类的皮肤，富有弹性。实验表明，快皮的纤维可以减少3% 水的阻力，这在1%秒就能决定胜负的游泳比赛中有着非凡意义。1999年10月，国际泳联正式允许运动员穿快皮参赛。

而关于穿什么样的泳衣游得更快，人们已探索了许多年。泳者在水中遇到的阻力，与水的密度、泳者的正面面积、摩擦系数及泳者速度的平方成正比，因此减少正面面积和摩擦系数是设计低阻力泳衣的关键。

英文：：：The shark dried shark skin swim suit is the people according to the nickname which its contour characteristic gets up, actually it has a more resounding name: The quick skin, its core technologies lies in the imitation shark's skin. The biologist discovered that the shark skin surface roughness V shape folds may reduce fluent greatly the friction force, causes around body's current of water to wind through highly effective, the shark can hover fast. The quick skin's ultra extension textile fiber surface is copies the shark skin surface to make completely. In addition, this model of swim suit also fully fused the bionics principle: Imitates humanity's tendon in the connecting point, delimits when backward the water for the athlete provides the power; Imitates humanity's skin on the cotton material, high resilience. The experiment indicated that the quick skin's textile fiber may reduce 3% water the resistance, this in 1% seconds can decide that the victory and defeat in the swim meet has the extraordinary significance. in October, 1999, Guojiyonglian allowed the athlete to put on the quick skin participation officially.what swim suit but does about put on to tour quickly, the people have explored for many years. The swimming the resistance which meets in the water, with water density, swimming frontal face area, friction coefficient and the swimming speed's square is proportional, therefore reduces the frontal face area and the friction coefficient designs the low resistance swim suit's key.

2.shark-skin like swimsuit

A new high-performance swimsuit, developed by mimicking the skin of sharks, will be worn by top athletes in Athens from this week.

The revolutionary new fabric, developed by Speedo, is the result of four years of research and development that began with the study of shark skin at the Natural History Museum .

The new swimsuit, called Fastskin FSII, increases a swimmer's speed by reducing passive drag through water by up to 4% more than the next best swimsuit.

Research into shark skin texture and movement through water was carried out under the guidance of Natural History Museum fish expert Ollie Crimmen.

Tiny 'teeth' cover the surface of a shark's skin and the shape and positioning of these 'teeth' vary across the body to manage the flow of water.

With these findings Speedo created a full 'bodyskin' with different fabrics on different parts of the body and for the first time, male- and female-specific and stroke-specific swimsuits.

用英语介绍一种鲨鱼用6句话

如下：

A couple of days ago, my dad and I go to the supermarket to buy things. Kingwe saw the sea shark, a shark that is cut in two, I think: sharks in the ocean so ferocious, and King of the sea anyway! But for now, or are we human beings killed, for sale, sell us to eat.

In my opinion, there seem to be two kinds of sharks (character), but the fact that sharks have only one character, in my imagination, the first is: fierce sharks, second: no use of sharks.

In these two species of shark, ferocious sharks is under what circumstances could use the title of it? Is swimming around in the ocean, and very handsome King in front of the sea. Useless shark is a shark be captured by humans, killing, for sale with title.

In the evening, father settle when I went to bed, my dad said to me: "today we see that the shark was cut in two in the future will be eaten by humans, do we humans are cruel, don't you think? "

I replied:" it's very cruel, but, if not cruel, we would starve. Because we still have to eat meat or something. Also, what other herbivores, for example eating cattle, sheep, and our homes not turned into a desert.

Grass, we have better homes. But we are a little cruel. "Dad just smiled and walked out of my room.

请给我猴子，大象，鲸，鲨鱼，鳄鱼的英语作文各一篇（50字内就够了）

Whale is the common name for various marine mammals of the order Cetacea. All whales have forelimbs modified as fins, tails with horizontal flukes and nasal openings on the top the head.

Blue whale is the largest animal known to have ever existed, 35m in length and 136 tonnes. It is also believed that only half of their brain is asleep at a time because whales can't afford to become unconscious for long or otherwise they may drown.

这个是鲸鱼的，我实在是不想写5篇啊，所以就写了我觉得别人可能最不愿写的，希望大家凑一凑就都有了哈！

鲨鱼的资料（英文）

鲨鱼属于脊椎动物门软骨纲(Chondrichthyes)板鳃亚纲，海生，少数种类进入淡水，为一群游速快的中大型海洋鱼类。

Sharks are vertebrates steel door cartilage (Chondrichthyes) elasmobranchii, Marine, a few species enter fresh water, as a group of large Marine fish speed is fast.

鲨内骨骼完全由软骨组成，常钙化，但无任何真骨头组织，外骨骼不很发达或退化，身体常被皮齿(质鳞)，牙多样化，具有硬肌，但膜骨则永不存在，脑颅无缝。

Shark endoskeleton completely composed of cartilage, often calcified, but without any true bone tissue, degraded or exoskeletons is not very rich, the body is often skin teeth (scale), tooth diversification, with hard muscle, but never exist, membrane bone temple seamless.

上额由腭方软骨组成，下额由梅氏软骨组成。最新研究表明，鲨体内含有多种生物活性成分，如抗癌因子、角鲨烯、黏多糖等等。

On the forehead is composed of palatal side cartilage, the forehead is composed of Mr Medvedev cartilage.Sharks, according to new research in the body contains a variety of biological active ingredients, such as anti-cancer agent, squalene, mucopolysaccharides and so on.

扩展资料

鲨鱼的起源不详，但其地质学纪录可追溯到泥盆纪(4.08亿～3.6亿年前）。鲨鱼化石在中泥盆世出现，在石炭纪（3.6亿～2.86亿年前）成为占优势的脊椎动物。现代鲨鱼出现于侏罗纪早期（2.08亿～1.87亿年前），到白垩纪（1.44亿～6,640万年前）已经发展成现存的各科。

总之，除觅食和游泳机制的改进外，进化对鲨鱼的形态改变甚微。无论对化石种和现存种类来说，牙齿在鲨鱼种类鉴别方面均有很重要作用。

参考资料来源：百度百科-鲨鱼

鲨鱼 英语作文

shark-skin like swimsuit

A new high-performance swimsuit, developed by mimicking the skin of sharks, will be worn by top athletes in Athens from this week.

The revolutionary new fabric, developed by Speedo, is the result of four years of research and development that began with the study of shark skin at the Natural History Museum .

The new swimsuit, called Fastskin FSII, increases a swimmer's speed by reducing passive drag through water by up to 4% more than the next best swimsuit.

Research into shark skin texture and movement through water was carried out under the guidance of Natural History Museum fish expert Ollie Crimmen.

Tiny 'teeth' cover the surface of a shark's skin and the shape and positioning of these 'teeth' vary across the body to manage the flow of water.

With these findings Speedo created a full 'bodyskin' with different fabrics on different parts of the body and for the first time, male- and female-specific and stroke-specific swimsuits.

Some mob movies are intentionally funny. Others carry all the blunt force of a baseball bat. "Shark Tale," a computer-animated mob spoof ---- not incidentally featuring the voices of two men previously involved in a mob movie co-starring a baseball bat ---- goes for funny.

The end result of a film made by some of the same people who brought us "Shrek" is a visually creative underwater escapade, often charming and amusing, but not supremely clever or all that heart-tugging. "Shark Tale" swims as a technically impressive entertainment, hip and supercool, but not totally engaging.

The story is of Oscar, voiced by Will Smith, who is at the bottom of the food chain, working at the local whale wash. Oscar talks the talk but doesn't walk the walk, seeking fame and glamour but never choosing wisely in his attempts to find those things. If it wasn't for the well-meaning advice of co-worker Angie (Renee Zellweger), an angelfish who harbors a secret affection for Oscar, he would be even deeper into his go-nowhere approach.

Things change thanks to happenstance. The mob-boss shark, Don Lino (Robert De Niro), runs things but has trouble getting his vegetarian son, Lenny (Jack Black), to display the toughness necessary to become a boss himself. When Oscar quite accidentally slays Don Lino's other son, Frankie, then takes undeserving credit for the kill, he becomes a hero and cultural superstar, acquiring the wealth and fame he always desired.

Trouble comes when Oscar must then repeatedly prove he's the shark-slayer he claims. Along with the way, and with the help or interference of several other comical characters ---- voiced by Martin Scorsese, Angelina Jolie, Peter Falk, Katie Couric and other talents, Oscar learns the true meaning of self-respect.

"Shark Tale" is loaded with amiable gags and likable characters, and some juicy touches that end up very funny, such as when a squirming, squealing shrimp is pleading for his life to great comical effect. It also has a primary lesson of accepting yourself and who you are as its main teaching, along with sidebar issues about respect and playing fair.

It all adds up to a reasonably amusing but not oh-wow experience, lacking the same look-at-that ingenuity as "Shrek," even if some of the small touches are very clever.

The movie gives us a chance to hear old pals De Niro and Scorsese trading funny lines ---- many of them improvised ---- taking us back to their many collaborations, including "GoodFellas," referenced above.

Smith is ready-made for the role, and other supporting voices fit just fine. Ultimately, "Shark Tale" is just that ---- fine ---- though nowhere close to a genre breakthrough. Instead, it's a mildly entertaining underwater escapade, a little too aware of itself and its hip intentions, but sometimes dazzling to observe. 有点多啊。。

请各位高手为我提供有关鲨鱼的资料（英文的），大概两三分钟，谢谢。有赏

What is a Shark?

Sharks are a type of fish.

Sharks are amazing fish that have been around since long before the dinosaurs existed. They live in waters all over the world, in every ocean, and even in some rivers and lakes.

Unlike bony fish, sharks have no bones; their skeleton is made of cartilage, which is a tough, fibrous substance, not nearly as hard as bone. Sharks also have no swim bladder (unlike bony fish).

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MAJOR DIFFERENCES BETWEEN SHARKS AND BONY FISH

ATTRIBUTE SHARKS

BONY FISH

Skeleton Cartilage only Bones and cartilage

Swimming Can only swim forward. Can swim forwards and backwards

Buoyancy (floating) Large oily liver Gas-filled swim bladder

Gills Gill slits but no gill cover Covered gill slits

Reproduction Eggs fertilized in female's body. Eggs usually fertilized in the water.

Skin Rough, sandpaper-like placoid scales Slippery, overlapping scales

SIZE

A scuba diver above a Whale shark. The Whale shark is the largest fish in the world; the basking shark is the second largest fish.

There are many different species of sharks that range in size from the size of a person's hand to bigger than a bus. Fully-grown sharks range in size from 7 inches (18 cm) long (the Spined Pygmy shark), up to 50 feet (15 m) long (the Whale shark). Most sharks are intermediate in size, and are about the same size as people, 5-7 feet (1.5-2.1 m) long. Half of the 368 shark species are under 39 inches (1 m) long.

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BODY SHAPES

Sharks have a variety of body shapes. Most sharks have streamlined, torpedo-shaped bodies that glide easily through the water. Some bottom-dwelling sharks (e.g. the angelshark) have flattened bodies that allow them to hide in the sand of the ocean bed. Some sharks have an elongated body shape (e.g., cookiecutter sharks and wobbegongs). Sawsharks have elongated snouts, thresher sharks have a tremendously elongated upper tail fin which they use to stun prey, and hammerheads have extraordinarily wide heads. The goblin shark has a large, pointed protuberance on its head; its purpose is unknown.

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VARIETIES OF SHARKS

There are about 368 different species of sharks, which are divided into 30 families. These different families of sharks are very different in the way they look, live, and eat. They have different shapes, sizes, color, fins, teeth, habitat, diet, personality, method of reproduction, and other attributes. Some types of shark are very rare (like the great white shark and the megamouth) and some are quite common (like the dogfish shark and bull shark). Sharks belong to the group of cartilagenous fish, the Elasmobranchii, that includes the sharks, rays, and skates.

There are over 350 different species of sharks. The spiny dogfish shark is the most common shark.

发布时间：2023-01-06 06:00