How Sharks Have Paid the Price for Demand for Shark Fin Soup

Unit 8 Section A (3a)教学设计Unit 8 Section A (3a) 教学设计【教学目标】1. 知识目标：（1）阅读文章，了解鲨鱼种群面临的危险及原因，理解拯救鲨鱼的紧迫性，了解环境保护组织所做的努力。

（2）了解单词food chain, ecosystem, shark, fin, cruel, at the top of等的含义和用法。

2. 能力目标:通过阅读，学习阅读的相关技巧，提高阅读水平。

了解学习文章的架构“提出观点-分析问题-解决问题”，并尝试通过写倡议书进行应用，提高学生的写作能力。

3. 情感目标:通过学习本文，理解“拯救鲨鱼等野生动物就是拯救我们人类自己”等道理，提高学生保护大自然的意识。

三、教学设计Step I Leading-in & Pre-readingShow students pictures of different expensive things and sharks. Get students to learn the meaning of the new words “food chain, ecosystem, shark, fin, cruel, at the top of, etc”. Make a mini survey by asking students questions:Do you like sharks?Should we be friendly to sharks? Should we save the sharks?（设计意图：学生通过谈论鲨鱼的生活习性，了解生物学常识，弄清food chain 等新单词的含义，为下面文章的阅读做好知识铺垫，扫清阅读障碍。

教师通过微调查，了解学生对野生动物的保护意识现状，为下面教学环节中情感目标的达成掌握第一手资料。

）Step II While-readingTask 1. Read the whole passage quickly and find out the writer’s viewpoint.（设计意图：学生通过速读全文，找出作者的观点。

购物时请讨价还价获得更便宜的商品英语作文When it comes to shopping, I always try to bargain for a better price. It's not just about the money, but also the satisfaction of knowing that I got the best deal possible. Bargaining is an art, and it takes some skill and confidence to do it effectively.First of all, it's important to do some research before entering the store. Knowing the market price of the item you want to purchase will give you a better idea of how much room there is for negotiation. Once you're in the store, be friendly and polite to the salesperson. Building a good rapport can go a long way in getting a discount.When it comes to actually negotiating the price, start by expressing your interest in the item and then ask if there's any flexibility in the price. If the salesperson says no, don't be discouraged. Politely make a counteroffer and explain why you think the price should be lower. It's important to be firm but not aggressive. Remember, the goal is to reach a mutually beneficial agreement.If the salesperson still doesn't budge, you can try walking away. Sometimes, this can prompt them to reconsider and offer you a better deal. If they still don't lower the price, you can always try coming back another day or asking if there are any upcoming sales or promotions.Overall, the key to successful bargaining is to be confident, polite, and persistent. It may not always work, but when it does, it's definitely worth the effort. Plus, it can be a fun and rewarding experience to test your negotiation skills.购物时，我总是尽量讨价还价以获得更便宜的商品。

鲸鲨和虎鲨英语作文Title: A Comparative Study of the Whale Shark and the Tiger Shark.In the vast and diverse realm of marine life, two shark species stand out due to their unique characteristics and remarkable sizes: the Whale Shark (Rhincodon typus) and the Tiger Shark (Galeocerdo cuvier). These two sharks, though sharing the same aquatic habitat, exhibit distinct behaviors, dietary preferences, and ecological roles. This essay aims to explore the differences and similarities between the Whale Shark and the Tiger Shark, highlighting their unique features and their significance in the marine ecosystem.The Whale Shark, as the largest known fish species, commands an impressive presence in the ocean. Its nameaptly reflects its size, with adults growing up to 40 feet in length and weighing up to 80 tons. Despite its enormous size, the Whale Shark is a gentle giant, feeding primarilyon small plankton and fish. Its diet consists primarily of krill, shrimp-like crustaceans, and young fish, which it filters from the water using its wide, sieve-like mouth. This feeding behavior allows the Whale Shark to feed efficiently in large swaths of the ocean, making it a crucial link in the marine food chain.In contrast, the Tiger Shark is a predator of both fish and marine mammals, earning its name for the dark stripes that run along its body, resembling the stripes of a tiger. This shark is smaller than the Whale Shark, typically growing to lengths of up to 20 feet and weighing up to2,200 pounds. The Tiger Shark is an opportunistic feeder, preying on a wide range of marine species, including other sharks, seals, turtles, and even seabirds. Its aggressive nature and adaptability have made it a feared predator in the ocean.Despite their differences in size and feeding habits, both the Whale Shark and the Tiger Shark play crucial roles in maintaining the balance of the marine ecosystem. The Whale Shark, through its feeding habits, helps control thepopulation of small plankton and fish, preventing their overpopulation and subsequent depletion of marine resources. On the other hand, the Tiger Shark's predation of larger marine species helps to regulate their numbers and keep the food chain in check.In addition to their ecological significance, boththese sharks also hold cultural and economic value. The Whale Shark, in particular, is a popular attraction for tourists and divers, drawing people from all over the world to witness its magnificent size and gentle demeanor. Its presence in certain regions has also led to the development of sustainable tourism industries that support local economies. On the other hand, the Tiger Shark, though less frequently encountered by humans, holds a significant place in fishing communities, where it is prized for its meat and fins.However, the future of both these shark species is clouded by the threats of overfishing, habitat loss, and climate change. The demand for shark fins and meat in some cultures has led to the unsustainable harvesting of thesesharks, pushing their populations to the brink of extinction. Habitat degradation due to pollution and coastal development has also impacted their ability to find food and breed. Additionally, climate change is altering their habitats, affecting their migration patterns and survival rates.In conclusion, the Whale Shark and the Tiger Shark, though distinct in size, feeding habits, and ecological roles, are both integral to the health and balance of the marine ecosystem. Their survival is crucial not only for the preservation of marine biodiversity but also for the sustainability of human activities that depend on healthy oceans. It is, therefore, imperative that we take actions to conserve these species and protect their habitats, ensuring a future where these remarkable sharks can continue to thrive in the vastness of the ocean.。

鲸鲨和虎鲨的对比英文作文英文回答：Whale sharks and tiger sharks are both fascinating marine creatures that share some similarities but also have significant differences.Size.Whale sharks: The largest fish species in the world, with an average length of 26 feet (8 meters) and a weight of 21 tons (19 metric tons).Tiger sharks: One of the largest shark species, with an average length of 14-16 feet (4.3-4.9 meters) and a weight of 800-1,400 pounds (363-635 kilograms).Appearance.Whale sharks: Grayish body with white spots andstripes, and a broad, flattened head with a wide mouth.Tiger sharks: Dark gray or blue body with distinctive black stripes, and a pointed snout with a toothed lower jaw.Feeding Habits.Whale sharks: Filter feeders that swim with their mouths open, passively filtering plankton and other small organisms from the water.Tiger sharks: Active predators that hunt a wide rangeof prey, including fish, turtles, seals, and even other sharks.Habitat.Whale sharks: Inhabit warm tropical and subtropical waters around the world, primarily in coastal areas andopen oceans.Tiger sharks: Found in warmer waters near coasts,often in coral reefs, estuaries, and bays.Reproduction.Whale sharks: Oviparous, with females laying eggs that develop externally.Tiger sharks: Viviparous, with females giving birth to live young that develop inside the mother's womb.Conservation Status.Whale sharks: Listed as Vulnerable by theInternational Union for Conservation of Nature (IUCN) due to threats such as overfishing and habitat loss.Tiger sharks: Listed as Near Threatened by the IUCN due to habitat loss, overfishing, and targeted hunting.中文回答：鲸鲨和虎鲨对比。

风浪越大鱼越贵作文700ai英文回答：The price of fish is influenced by various factors, and one of them is the intensity of the waves. When the waves are larger, it becomes more difficult for fishermen to catch fish, resulting in a decrease in the supply of fish. As a result, the price of fish tends to increase. This can be attributed to the basic principle of supply and demand. When the supply of fish decreases, but the demand remains constant or even increases, the price naturally goes up.In addition, the larger waves also pose risks and challenges for fishermen. They may have to spend more time and effort to navigate through the rough sea, which could lead to higher operating costs. These additional costs are often passed on to the consumers, resulting in higher fish prices.Furthermore, the quality of fish may also be affectedby the rough sea conditions. Fish that are caught in calmer waters tend to have a better texture and taste compared to those caught in turbulent waters. Therefore, consumers may be willing to pay a premium for fish that are caught in calmer seas, further driving up the price.To illustrate this point, let's consider the example of a fish market in a coastal town. During a period of calm sea conditions, the market is flooded with a wide variety of fresh fish at affordable prices. However, when a storm hits and the waves become larger, the supply of fish decreases significantly. As a result, the prices of fish skyrocket, making it difficult for the average consumer to afford their favorite seafood dishes.中文回答：鱼的价格受到多种因素的影响，其中之一就是海浪的强度。

鲸鲨和虎鲨英语作文英文回答：Whale sharks and tiger sharks are two of the most fascinating creatures in the ocean. Both of them are large and powerful predators, but they have some key differences that set them apart.Whale sharks are the largest fish in the world, known for their massive size and gentle nature. They are filter feeders, meaning they feed on plankton and small fish by swimming with their mouths open to catch food. Whale sharks can grow up to 40 feet in length and weigh as much as 20 tons. Despite their intimidating size, they are actually quite harmless to humans and are often sought out by divers for a chance to swim alongside these majestic creatures.On the other hand, tiger sharks are known for their aggressive behavior and powerful jaws. They are apex predators, meaning they are at the top of the food chain intheir ecosystem. Tiger sharks have a varied diet that includes fish, seals, birds, and even other sharks. They are known for their scavenging behavior and are often referred to as the "garbage cans of the sea" because they will eat just about anything they come across. Tiger sharks can grow up to 16 feet in length and are responsible for a significant number of shark attacks on humans each year.In conclusion, while both whale sharks and tiger sharks are impressive creatures in their own right, they have very different behaviors and feeding habits that make them unique in the marine world.中文回答：鲸鲨和虎鲨是海洋中最迷人的生物之一。

鲸鲨和虎鲨的对比英文作文英文回答：Whale sharks and tiger sharks are both fascinating creatures, but they have some distinct differences. Let's dive into the comparison between these two magnificent sharks.Firstly, let's talk about their appearances. Whale sharks are the largest fish in the world and can grow up to 40 feet long. They have a broad, flat head and a massive mouth that can open up to four feet wide. Their body is covered in unique patterns of spots and stripes, which make them easily recognizable. On the other hand, tiger sharks are known for their powerful, streamlined bodies and large, sharp teeth. They have dark, vertical stripes along their body, which resemble tiger stripes, hence the name.Moving on to their habitats, whale sharks are found in warm, tropical waters across the globe. They prefer to swimnear the surface and can often be spotted near coral reefs, where they feed on plankton and small fish. Tiger sharks, on the other hand, are more versatile and can be found in both tropical and temperate waters. They are known to inhabit coastal areas, as well as open ocean environments. They have a varied diet and are often referred to as "garbage cans of the sea" due to their ability to eat almost anything.In terms of behavior, whale sharks are generally peaceful and docile creatures. They are known to be filter feeders, meaning they swim with their mouths open to catch tiny organisms. They are often seen swimming slowly, which gives divers and snorkelers the opportunity to swim alongside them. Tiger sharks, on the other hand, are more aggressive and have been involved in a higher number of shark attacks on humans. They are known to be opportunistic hunters and have a reputation for being curious and bold.Now, let's switch to Chinese and continue the comparison.中文回答：鲸鲨和虎鲨都是令人着迷的生物，但它们之间有一些明显的差异。

虎鲨和鲸鲨英文对比作文英文回答：Tiger sharks and whale sharks are both fascinating creatures that inhabit the ocean. Although they are both sharks, they have many differences in terms of their appearance, behavior, and habitat.Firstly, let's talk about the appearance of these two sharks. Tiger sharks are known for their unique pattern of dark vertical stripes on their body, which resembles a tiger. They have a stout and bulky body with a large head and a wide mouth filled with sharp teeth. On the other hand, whale sharks have a more streamlined and elongated body. They are the largest species of fish and can grow up to 40 feet long. Their mouth is located at the front of their head, and they have a wide, flat head with a gentle slope.Moving on to their behavior, tiger sharks are known to be aggressive and opportunistic predators. They have areputation for being "garbage cans of the sea" because they eat almost anything they come across, including fish, seals, turtles, and even garbage. They are also known to becurious and may investigate objects in the water, including boats and divers. On the contrary, whale sharks are filter feeders and primarily eat plankton and small fish. They are gentle giants and pose no threat to humans. In fact, swimming with whale sharks has become a popular tourist attraction in some parts of the world.Now let's discuss their habitat. Tiger sharks can be found in warm and tropical waters around the world. Theyare often found near coastlines, coral reefs, and even in estuaries. They have been known to travel long distances in search of food. Whale sharks, on the other hand, prefer warm waters and are often found in the open ocean. They are known to migrate to different areas depending on the availability of food.In conclusion, tiger sharks and whale sharks may bothbe sharks, but they have distinct differences in terms of their appearance, behavior, and habitat. Tiger sharks areaggressive predators with a unique striped pattern, while whale sharks are gentle filter feeders and the largest species of fish. Understanding these differences helps us appreciate the diversity of marine life and the importanceof conserving their habitats.中文回答：虎鲨和鲸鲨都是生活在海洋中的迷人生物。