shark的英文介绍

回答和翻译如下 ：shark鲨 鱼 。

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). ________________________________________MAJOR DIFFERENCES BETWEEN SHARKS AND BONY FISHATTRIBUTE SHARKS BONY FISHSkeleton Cartilage only Bones and cartilageSwimming Can only swim forward. Can swim forwards and backwardsBuoyancy (floating) Large oily liver Gas-filled swim bladderGills Gill slits but no gill cover Covered gill slitsReproduction Eggs fertilized in female's body. Eggs usually fertilized in the water.Skin Rough, sandpaper-like placoid scales Slippery, overlapping scalesSIZEA 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. ________________________________________BODY SHAPESSharks 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. ________________________________________VARIETIES OF SHARKSThere 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

鲨鱼用英语：shark ，读音：英 [ʃɑːk] 美 [ʃɑːrk]n. 鲨鱼n. 贪婪的人；放高利贷的人；老手v. 诈取；诈骗词汇搭配1、bonito shark 灰鲭鲨2、thresher shark 长尾鲨3、blue shark 大青鲨4、whale shark 鲸鲨常见句型：1、The shark is dangerous to swimmers.鲨鱼对游泳的人来说很危险。2、He told me he once caught a shark, but I know he was swinging the lead.他告诉我有一回他捕到了一条鲨鱼，我知道他是在胡诌。3、They were killed by a man-eating shark.他们被一条吃人的鲨鱼所害。扩展资料：shark的同义词有：sharper、fraud , swindler1、sharper英 ['ʃɑːpə] 美 ['ʃɑrpɚ]释义：n. 骗子；赌棍；欺诈犯例句：Her old sharper of a father did it.她那骗子父亲干的好事。2、fraud英 [frɔːd]美 [frɔːd]n. 欺诈;骗子;伪劣品;冒牌货[例句]She had committed fraud, embezzlement and theft.她犯了诈骗、贪污和盗窃罪。3、swindler英 ['swɪndlə]美 ['swɪndlɚ]n. 骗子[例句]Never shall I trust that swindler again.我再也不会相信那个骗子了。

were interested in discovering just how the doomed hero chose to spend his last days