2024-02-17 02:10:43 | 蜕变培训网
托福TPO26综合写作范文及材料原文
斑马贻贝,一种原产于东欧的淡水贝类,早已从原来的栖息地传播出去,现在已到达北美洲的.部分地区。托福TPO26综合写作阅读材料认为控制不了斑马贻贝的蔓延。对当地生物造成影响,听力材料反驳了这种观点。下面是我分享的材料原文和参考范文,希望能对大家有所帮助!
Contrary to what is argued in the passage, the lecture illustrates how zebra mussels are not likely to become a serious threat to freshwater fish populations in North America.
First and foremost, new knowledge of the zebra mussel has shed light on new ways to prevent their invasion, even though people in the past have not been able to stop the spread of zebra mussels effectively. For instance, although a large amount of zebra mussels spread to North America by staying in the ballast water of a ship, people can now get rid of them before the ship gets to the shore – if the ballast water is emptied halfway of the journey and refreshed with sea water, the zebra mussels can be exterminated as soon as they get exposed to salt water.
Furthermore, zebra mussels are not likely to dominate a new habitat for a long period of time. The lecture agrees that zebra mussels may have no predators and reproduce rapidly in the beginning, but it would not be long before predators notice this new source of food and therefore prevent its domination.
Finally, zebra mussels would not cause the decline of overall fish population. While zebra mussels would most likely cause the decline of plankton eaters, as the passage suggests, they would also provide nutrients for bottom-feeding fish and eventually cause the population of those fish to increase.
The zebra mussel, a freshwater shellfish native to Eastern Europe, has long been spreading out from its original habitats and has now reached parts of North America. There are reasons to believe that this invasion cannot be stopped and that it poses a serious threat to freshwater fish populations in all of North America.
First, the history of the zebra mussel's spread suggests that the invasion might be unstoppable. It is a prime example of an invasion made possible by human transportation. From the zebra mussel,s original habitats in Eastern Europe, ships helped spread it out along new canals built to connect Europe’s waterways. The mussel can attach itself to a ship’ s bottom or can survive in the water—called "ballast water"—that the ship needs to take on to properly balance its cargo. By the early nineteenth century, the mussel had spread to the whole of Europe. It was later carried to the east coast of North America in the ballast water of ships traveling from Europe. The way ships have spread the zebra mussel in the past strongly suggests that the species will soon colonize all of North America.
Moreover, once zebra mussels are carried to a new habitat, they can dominate it. They are a hardy species that does well under a variety of conditions, and they have a high rate of reproduction. Most important, however, zebra mussels often have no predators in their new habitats, and species without natural predators are likely to dominate their habitats. 蜕变培训网
Finally, zebra mussels are likely to cause a decline in the overall fish population in habitats where they become dominant. The mussels are plankton eaters, which means that they compete for food with many freshwater fish species.
Contrary to what you just read, there are ways to control the zebra mussel's spread. What's more, it is not so clear that the mussel is a serious threat to fish populations.
True, the spread of zebra mussels couldn't be controlled in the past, but that's because people didn't have enough knowledge. In fact, there are effective ways to stop ships from carrying the mussels to new locations. Here's an example. The way zebra mussels usually travel across the ocean is that a ship takes on some fresh "ballast water" in Europe and then empties that water into American waterways when it arrives. Full of zebra mussels, but the ship can be required to empty out the freshwater and refill with ocean water while still out in the ocean. Salt water will kill the mussels.
Second, it's true that zebra mussels often don't have predators in their new habitats, but that's only in the beginning. What's been happening in Europe is that local aquatic birds sooner or later notice there's a new food source around and change their habits to exploit it. They switch from whatever they were eating before to eating zebra mussels. And birds can eat a lot of mussels. So zebra mussels aren't so likely to dominate their new habitats after all.
Finally, even in habitats where zebra mussels become dominant, is the overall fish population likely to decrease. It's true that zebra mussels may have a negative impact on fish that eat plankton. But on other fish, they can have a positive impact. For example, the mussels generate nutrients that are eaten by fish that feed near the bottom of the lake or river. So bottom-feeding fish populations may increase, even if plankton-eating fish population decrease.
;托福考试要求算是比较高的了,要在较少的时间里完成两篇作文,其间的难度也是可以想见,那我们要怎么好好提高写作能力呢,其实可以从范文处吸取一些经验,下面托福频道我就来帮帮你,给你带来《 托福写作范文:学生们选择出国留学的原因 》,希望对你有所帮助。
Many students choose to attend schools or universities outside their home countries. Why do some student abroad? Use specific reasons and details to explain your answer.
Although students can get a good education in most subjects at their home universities, it is important to study abroad for some or part of one’s college education. Study abroad can give a student competency in a new language, familiarity with a different culture, and a chance to grow in different ways.
One cannot deny that it is important to be bilingual or even multilingual in today’s fast-paced world. We have a global economy and communication by Internet and satellite TV means we must be familiar with other languages in order to keep up with new developments.
Knowing another culture is also important today. Respect for other people and their traditions will foster cooperation and peace. We should all do our part to make sure the world is safe for our children. It will only be safe if we understand and respect other people and their culture.
When we are out of our environment, we feel freer to experiment with different ways of doing things. We are all individuals and we need time to be on our own, away from our comfortable nests. We may try different things and reject them. We might also adopt them. People can change and it is easier to change when you are away from your family surroundings.
Study abroad can be enriching. Not only can we learn a new language, understand more about a different culture, but we can learn more about ourselves too. At the same time, of course, we are getting an education in the formal sense.
以上就是关于学生选择出国留学的原因这个话题的托福写作范文,希望同学们能够认真的学习借鉴这篇托福综合写作范文的用词、用句、语法和段落的安排,仔细推敲,然后自己试着去写一下,最后做一下对比,查漏补缺,只有这样,你的托福写作水平才能得到长足的进步。
托福备考的过程中,要想写作取得优势,多阅读一些 范文 是十分有必要的,下面我给大家带来托福写作高分 范文大全 ,快来学习吧!
托福写作高分范文大全1
Task:It has been said, “Not everything that is learned is contained in books.” Compare and contrast knowledge gained from experience with knowledge gained from books. In your opinion, which source is more important? Why?.
托福写作模板范文参考:
We all crave knowledge, especially in this Age of Information, but what is the best source of knowledge? Are we to believe Albert Camus, who stated” The place we are to get knowledge is in books”? Or are we better served by following Albert Einstein's counsel that “The only source of knowledge is experience”? Although books have their place in one's learning, there is no substitute for experience; indeed, it is experience that is ultimately the most important source of knowledge.
First, let us consider the knowledge needed to undertake a profession-for example, that of a physician. Knowledge gained from books provides the foundation of a doctor's training: study in a medical school begins with a near-overload of reading on anatomy, physiology and maladies both rare and common. However, during this time the medical student is also learning through experience, beginning with dissecting cadavers from almost the first day of medical school. Then, the aspiring physician must complete four years of residency, consisting of actual supervised experience at a hospital in which he or she now must put into practice all of the knowledge he or she has edge of dealing with patients, prescribing medication, and the joy and sadness of saving and losing patients; in other words, it is through experience that these residents finally learn what it means to be a doctor.
What about knowledge other than professional expertise-for example, knowledge about another culture? In this realm as well, both books and real-life experience enrich and edify us. For example, Paris is perhaps the most talked-about and written-about city in the world. We could read Hemingway's A Moveable Feast, in which he describes the excitement and intellectual spirit-as well as the restaurants and plentiful red wine-of Paris in the 1920's. Or, we could travel to Paris and eat at bistros, walk across the Pont Neuf and look at the river Seine, visit the Louvre museum, and have adventures of our own. Clearly, most people would have attained more lasting and vivid knowledge by visiting Paris on their own rather than reading about it secondhand.
In summary, experience, rather than books, is more central to our quest for learning, especially with regard to professional expertise. With regard to learning about another culture, experience is also irreplaceable. Yet not everyone in the world will have the health or financial resources to carry out a trip to Paris. But many people have access to a local library where they can borrow A Moveable Feast and, at no cost, read Hemingway's vibrant descriptions of Paris. We cannot forget the complementary and unique knowledge afforded by books, but experience is the most precious source of knowledge.
托福写作高分范文大全2
Task:“When people succeed, it is because of hard work. Luck has nothing to do with success.” Do you agree or disagree with the quotation above? Use specific reasons and examples to explain your position.
托福写作模板范文参考:
It is universally acknowledged that hard work is indispensable to success. Scientists toil for years before they make a major discovery. Students study for years before they are accepted by a top university. Self-make people work for a long time, even all their life before they make a fortune. However, less well-known is the essential role that luck plays in achieving one's goals. It is often luck that turns years of hard work into success: people discover and invent things with the help of luck, and so do they become famous and find jobs.
First, luck has helped a great number of people invent and discover things. Sir Alexander Fleming experimented with antibacterial substances for nine years before he discovered penicillin. He went through laborious trial and error, but it was on account of luck that he looked at the mold on a piece of cheese and got the idea for penicillin there and then. Benjamin Franklin had been trying to prove his idea that lightning and electricity is the same thing, but it was only in flying a kite that he proved it and the concept of a lightning rod happened to strike him.
Also, luck helps people become famous. Let us consider young authors. Many work hard to learn to write. For example, they take writing classes. Besides, they work at menial jobs so as to survive and gain experience. Then one day a lucky writer may have piece of writing published and attract public attention. Or the writer meets an editor at the right time and place. Years of continuous writing brings the writer to the door of success, but one lucky chance, like the shot in soccer, eventually helps him or her reap success.
Finally, luck has helped many people secure jobs. One may spend much time writing and sending resumes, reading recruiting ads, and going to job interviews. One may pond the pavement for a long time before getting a job. However, it is with luck that a job hunter meets the person who will offer a position to him or her, or learns of a vacancy that is not advertised. Being at the right place at the right time often helps one land a job, and this has all to do with luck. One can hardly succeed without hard work, but hard work without luck often leads to nothing. Luck has a great number of people find success. In fact, luck goes hand in hand with hard work.
托福写作高分范文大全3
Task:Some people believe that university students should be required to attend classes. Others believe that going to classes should be optional for students. Which point of view do you agree with? Use specific reasons and examples to explain your position.
托福写作模板范文参考:
Some people think that university students should be able to choose whether to go to classes or not. I could not disagree more with this idea. Even though students can have excused absences, for example, when they are sick or have something emergent to attend, generally they should be required to go to classes. In fact, attending classes has many advantages, three of them most important: learning from the teacher, interacting with classmates, and developing responsibility. Attending classes has the benefit of receiving the best that a teacher can offer. Good teachers review the difficult and key pints of the material in the course textbook. The best teachers do more than this. They conduct group discussion of the material, and present alternative points of view on the same issue. This increases students' real understanding and critical thinking.
Moreover, teachers supplement the textbook material with information provide by guest speakers, which further enhances students' understanding. All this implies that, if students are absent from class, it is tantamount to forfeiting their right to full benefits of teacher-guided learning in class. Going to classes also helps students learn how to work with their classmates. In class, students need to put forward their ideas. They have to take questions from their classmates and when their classmates have a different point of view, they have to defend their own. All this is conducted in a friendly manner. Interaction of this kind teaches students about how to work with other people.
Finally, going to classes enables students to develop responsibility. Having to finish all the assigned readings before class helps prepare them for getting a job. So does the requirement of being punctual for class. Similarly, having to complete assignment on time for class helps them to foster responsibility.
Admittedly, students can obtain information from books, but they benefit a great deal more when they go to classes. They have the advantage of learning from their teacher, of interacting with other people, and of developing the responsibility required of a good worker as well as a good student. If these skills in life are in no sense optional, how can attending classes in a university be optional?
托福写作高分范文大全4
托福考试 作文 题目:
Do you agree or disagree with the following statement? Most experiences in our lives that seemed difficult at the time become valuable lessons for the future. Use reasons and specific examples to support our answer.
托福考试作文参考分析:
举一些例子支持题目中的观点,确实有些痛苦经历对将来毫无帮助。
托福考试作文范文参考:
Some people argue that most experiences in our lives that seemed difficult at the time can later become valuable experiences. I cannot agree with them more. There are numerous reasons why I hold confidence on this opinion, and I would explore only a few primary ones here.
Difficulties are beneficial to our personal growth. In the course of our life, we will face numerous difficulties, and each difficulty will help us grow up, and become a valuable lesson for the future. A toddler fells off the ground for many times before he knows how to walk, and a child learns how to swim after he drinks water in the swimming pool. In addition, only after we experienced failures, we know the value of success. We will never appreciate anything that comes so easy. Difficulties can make us feel stronger and be more confident for the future obstacles.
Furthermore, difficulties in our work can help us gain more experience and knowledge. Most of the times we can gain knowledge and experiences faster through experiencing difficulties in our life and trying to find a solutions to the perplexities that we face. There is a famous saying, "no pain no gain." For example, when we take on a new job that we do not have much experience in, the first few weeks can be extremely painful and we may feel enormous pressure and difficulties. And we will try our best to adjust, to learn and to think, how to do this job better. The more difficulties we feel, the harder we try to acquire the skills and knowledge to overcome it. Learning and this stage is extremely efficient and our problem solving skills well increase. After we overcome more and more problems, we can become an experienced worker in this field and will be able to take on more challenges. We will never fear that we will face the same kind of problem again. This means that we have accumulated valuable experiences for the future.
In a word, a difficult experience is a gift that life gives us. We should appreciate it and take it as a precious opportunity to gain knowledge and experience about our study, work and life.
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以上就是蜕变培训网为大家带来的托福TPO26综合写作及材料原文 托福写作高分范文大全,希望能帮助到大家!2023-12-12 23:01:54
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