综合写作：
The vampire squid is a medium – sized ocean cephalopod that has not been extensively studied. For example, it is not clear what this creature eats. Some biologists have proposed a theory that vampire squids feed on so – called “marine snow”—bits of floating organic debris. However, there are several reasons for doubting that the vampire squid primarily feeds on marine snow.
Minimum – oxygen zones
First, the larger particles of organic debris that form marine snow occur at relatively great depths below the ocean surface. At such depths there is very little oxygen. Few animals can breathe adequately in these minimum – oxygen zones for any length of time. Thus, because of the lack of oxygen, vampire squids would probably die if they had to feed primarily in areas where marine snow is available.
Vulnerability to predation
Second, feeding on marine snow would make vampire squids vulnerable to attacks by predators. Feeding on marine snow requires a vampire squid to keep very still as the organic debris slowly collects on its long arm, which the squid then brings to its mouth. If vampire squids had to spend most of their time feeding in this way, they would be too easy for predators to detect and catch. Whales, sea lions, or large predatory fish could dive down and snap up the motionless squids, seriously reducing their numbers.
Behavior of other cephalopods
Third, the vampire squid is a cephalopod. Cephalopods are a group of animals that includes octopuses, squids, and cuttlefish. Every other known cephalopod is a hunter that actively seeks out or pursues living prey. Feeding on dead organic material such as marine snow would make the vampire squid very different from all its relatives. Such a difference is not easy to explain.
学术写作：
Instructions
Your professor is teaching a class on education. Write a post responding to the professor’s question.
In your response you should do the following:
- Express and support your opinion.
- Make a contribution to the discussion in your own words.
An effective response will contain at least 100 words.
Dr. Diaz
Some educators think that in our global, tech – oriented world, students need to focus on nonfiction texts, such as news stories, technical manuals, or other informational materials. They say that reading poetry, novels, and short stories is not the optimal use of the limited time that students have in the classroom. How do you view this approach to education? Should teaching more practical, nonfiction texts in favor of （此处文字未显示完整）
Andrew
Education has to evolve. Nowadays, there’s an enormous amount of economic and political data freely available. It’s important that students can evaluate this information to understand local and world events in order to be good citizens. Reading fiction is a wonderful hobby, but school should prepare students for adult life and its responsibilities.
Claire
I spent a lot of class time in high school analyzing literature. My studying to be an engineer, so I admit that reading fiction in school was not directly applicable to my future occupation, but it did instill in me a love of reading, which is very valuable. I feel better equipped now to understand all sorts of written material.
