【3bu2 part3】万思乐学V-learn小西妈双语工程 1807期223号samy2020.8.28打卡

Samy的童年时光

主题： 3bu2 Ocean animals Ocean Animals Crab，dolphin,Eel ,fish,jellyfish Lobster，Manatee，octopus，oyster，Penguin，ray，sea otter，sea turtle，sea horse，seal，shark，squid，startfish，walrus，whale ☑️1.sharksSharks are a predatory捕食者 fish, which means they eat other fish. Sharks have up to 300 teeth that grow from their gums and fall out very easily.容易脱落 They can have up to 30,000 teeth in their lifetime. Some sharks must keep moving in order to breathe. They even move when they are sleeping. Sharks have been around for 420 million years! That’s right: sharks existed before dinosaurs.Sharks are extremely efficient at what they do and have few natural predators, which is why they have survived for so long. How many types of shark are there?There are over 450 species of sharks in the ocean. However, there are many different types of sharks that one should know to be able to know how to act when one of them gets close. Different types of sharks 1⃣️tiger shark 虎鲨 虎鲨身体一侧有深色条纹，尤其是年轻的鲨鱼。这些大鲨鱼可以长到18英尺长，重达2000磅。虽然有些人会和虎鲨一起潜水，但虎鲨是最可能攻击人类的鲨鱼之一。A tiger shark has a darker stripe on its side, especially in younger sharks. These are large sharks that may grow over 18 feet long and weigh up to 2,000 pounds. Although diving with tiger sharks is an activity some people engage in, tiger sharks are among the sharks most likely to attack humans. Tiger sharks will eat anything,including other sharks,license plates,and tires. Tiger sharks migrate to Hawaii each june to prey on albatross.虎鲨每年六月迁徙到夏威夷捕食信天翁。 <div>Tiger sharks systematically move between the ocean surface and the floor to feed.</div><div>虎鲨系统地在海面和海底之间移动觅食。<strike></strike> </div> 2⃣️Whale sharks （鲸鲨）鲸鲨，是世界上最大的鱼类。体表散布淡色斑点与纵横交错的淡色带，有如棋盘。食大量浮游生物和小型鱼类，性情温和。由于大量捕杀，数量锐减。 Gentle giants, whale sharks filter-feed, swimming with their wide mouths open, collecting plankton（浮生动物） and small fish. <div>Whale shatk are the biggest fish in the sea.</div><div> Not only the biggest type of shark, they are also the biggest type of fish in the world! <strike></strike> </div> A whale shark can be as long as a school bus and weigh as much as 50,000 pounds. <div>Whale sharks are one of only three known shark species that filter feed(滤食),as baleen whales(长须鲸) do.</div><div>鲸鲨是已知的三种滤食鲨鱼之一，就像长须鲸一样。<strike></strike> </div> 3⃣️Hammerhead shark 锤头鲨Hammerheads are aggressive hunters, feeding on smaller fish, octopuses, squid, and crustaceans. They do not actively seek out human prey, but are very defensive （防御）and will attack when provoked（激怒） 4⃣️basking shark(姥鲨)The basking shark is the second largest living fish in the world, and is one of three plankton-eating sharks known to mankind today. 姥鲨是世界上第二大现存鱼类，也是人类已知的三种以浮游生物为食的鲨鱼之一。 The basking shark feeds through the massive gill slits that encircle its head, which filter large amounts of water for plankton.姥鲨通过其头部周围巨大的鳃缝觅食，这些鳃缝可以过滤掉大量的水中的浮游生物。 Large Liver – The basking shark’s liver is so large that is makes up 25% of its total body weight, and actually provides buoyancy (ability to float) in the water. Changing Snout – Juvenile basking sharks have a hook-like snout that changes shape after they reach one year of age. <div>Many Teeth – The basking shark has more teeth than any other species of shark on Earth.</div><div>大肝脏——姥鲨的肝脏很大，占了它全身重量的25%，实际上提供了浮力(漂浮的能力)。 改变嘴部——幼鲨有一个钩状的嘴部，一岁后会改变形状。 许多牙齿——姥鲨的牙齿比地球上任何其他种类的鲨鱼都多。<strike></strike> </div> ☑️WhaleTop Whale Facts for Kids 1. Whales are mammals.This means that whale calves(幼兽) grow inside their mothers until they are born. Besides, they are nursed 护理and taken care by their mothers until they reach certain age. 2. Whales breathe air as we do.Therefore, they need to reach the surface of the ocean to breathe because they cannot breathe underwater. 3. To breathe, whales have a blowhole（（鲸头顶的）呼吸孔）in the top of their heads.When they reach the surface, they take air in through this blowhole. 4. There are two types of whales, Baleen Whales（须鲸）and Toothed Whales.（齿鲸）There are several species of whales out there, but they are classified according to the way they feed in two types, baleen whales and toothed whales.那里有几种鲸鱼，但根据它们的进食方式进行分类，其中，鲸鱼和齿鲸两种。 5. Baleen whales （须鲸）feed from krill （磷虾）and plankton.（浮游生物）没牙的苦恼😂Krill are shrimp-like creatures which are very important ocean creatures. 6.Toothed whales eat several kind of fish.Like tuna, cod and salmon among others and some small mammals like seals.像金枪鱼，鳕鱼和鲑鱼等，还有一些小型哺乳动物如海豹。 7. The Blue whale is the largest animal in the world.Even more, it is the largest animal that has ever existed, even larger than the largest dinosour ever found. The blue whale is a baleen whale. 8. Whales do not sleep as we do.To rest, whales sleep only half brain so they remember to take air in, otherwise they would drown要休息，鲸鱼只睡一半的大脑，所以他们记得要吸入空气，否则它们会淹死 蓝鲸，是一种海洋哺乳动物。蓝鲸被认为是已知的地球上生存过的体积最大的动物，长可达33米，重达181吨。蓝鲸的身躯瘦长，背部是青灰色的，不过在水中看起来有时颜色会比较淡。与其他须鲸一样，蓝鲸主要以小型的甲壳类（例如磷虾）与小型鱼类为食，有时也包括鱿鱼。通常蓝鲸白天需要在超过100米深度的海域来觅食，在夜晚才能到水面觅食。 ☑️DolphinsFun Dolphin Facts for Kids <div> </div><div>Compared to other animals, dolphins are believed to be very intelligent. Dolphins are carnivores (meat eaters).<strike></strike> </div> Dolphins are mammals; this means that they nurse their babies with milk from the mothers. Dolphins can swim up to 260 m. below the surface of the ocean. Dolphins can stay up to 15 minutes under water, but they cannot breath under the water. <div>Dolphins use a technique called echolocation to find food and navigate.</div><div>海豚是哺乳动物;这意味着它们用母亲的乳汁喂养婴儿。 海豚可以在海面下游到260米深。 海豚可以在水下待15分钟，但它们不能在水下呼吸。 海豚使用一种叫做回声定位的技术来寻找食物和导航。<strike></strike> </div> ☑️科学手工书 ocean ☑️丝绸之路趣趣的课程，这个内容比较新颖。Marco polo and the silk Road The Silk Road was a network of trade routes connecting the East and the West in ancient and Medieval times. The term is used for both overland routes and those that are marine or limnic. The Silk Road involved three continents: Europe, Africa and Asia. <div> </div> 1.How old is the silk Road? The silk road is over two thousand years old. 2. How long is the silk Road？ The silk Road is over six thousand kilometers long. 3.Where does the silk road go across? It goes across Eurpoe and Asia. 4.What did people do on this road? Many people traveled on this road to buy and sell silk and other goods. <div>1.Where did Marco pole come from?</div><div>Marco pole came from Italy.</div><div>2.When did Marco pole travel on the silk road? </div><div>Marco pole traveled on the silk road when he was 17,in the year 1271.</div><div>3.Was the silk road easy or difficult to travel on? why?</div><div>The silk road was difficult road to travel.Because the days were very hot and the nights were cold.sometimes there was no food or water.</div><div>4.How long did he stay in China?</div><div>He stayed in china 20 years.</div><div> </div> 1.when did Marco return to Italy?Marco returned to Italy when he was 41.2,Why did Marco pole become famous?Many people read the book travel of marco pole and Marco become famous.