TPO53托福综合写作听力原文

Now listen to a part of a lecture on the topic you just read about.

Asteroid colonization is not a very practical idea. Each of the points in the reading has a serious downside.

First, while low gravity on an asteroid would make landing and taking off relatively easy, low-gravity environments also present certain risks. In a low-gravity environment, people start losing muscle mass and their bone density becomes lower. Even astronauts who spend just a few months in spaceships, which are low-gravity environments, suffer from health problems like muscle and bone density loss. Imagine the health problems that long-term colonists would experience on asteroids.

Second, the availability of valuable metals might make an asteroid colony seem like a profitable idea but that’s not the whole picture. You have to consider additional factors. One thing is the costs. The costs of supporting a colony and of transporting the metals are likely to be high and will reduce the profits. And furthermore, there’s no guarantee that the price for which you can sell the metals will remain the same. If precious metals are mined in large quantities, it would increase the supply of the metals, which could end up lower in the market price. So mining on asteroids may not be very profitable.

Third, even if some asteroids are easy to reach, they may not be easy to return from. Asteroid orbits, the path on which asteroids travel through space, can be unusual. Some orbital paths come close to earth but then move away from earth, often a great distance away from earth. So even if an asteroid gets close to earth at one point, making it easy for colonists to get to the asteroid, it does not stay close to earth. It can actually travel much farther away from earth than a planet like Mars. Getting back from an asteroid that travels that far would be a challenge.

TPO53托福综合写作阅读原文

1 Directions: You have 20 minutes to plan and write your response. Your

response will be judged on the basis of the quality of your writing and on how well your response presents the points in the lecture and their relationship to the reading passage. Typically, an effective response will be 150 to 225 words.

Question: Summarize the points made in the lecture, being sure to explain how they challenge the specific points made in the reading passage.

Asteroids are large space objects made of rock and ice. There are hundreds of thousands of asteroids in our solar system. Though we often hear ideas about establishing colonies of humans to live and work on our Moon or our neighboring planet, Mars, some think that sending people to an asteroid would actually be the best colonization option for a number of reasons

Low Gravity

To begin with, asteroids are often much smaller than planets, so they have lower gravity. When landing a spaceship, the craft would not be pulled as strongly or as forcefully toward the asteroid's surface, making the landing safer than landing on the Moon or Mars; it would also allow a spacecraft to carry much more equipment needed to set up the colony. It would also be easier for the spacecraft to take off again, so the spaceship would need to carry considerably less fuel for the trip back to Earth.

Mining Valuable Metals

Next some asteroids are rich in valuable elements and precious metals that are relatively rare on Earth, such as gold and platinum. An asteroid colony would be extremely profitable and a good source of these raw materials. The colonists or businesses sponsoring them could more than pay for the cost of their support by mining minerals and sending them back to Earth.

Easy to Reach

Finally, asteroids are a good option for colonization because some of them would be very easy to reach. There are a number of asteroids that periodically come within or near Earth's orbit Some of them actually get closer to Earth than our Moon. So these asteroids would be much easier and more affordable to get to and

get back from than a planet like Mars, which would require a two-year trip in each direction.

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重点是细节不要搞错，要挺清楚细节说了那几点，尽量不要落下那个点，细节齐全 3、写得时候模板适当用用，但是表全部都用，那样文章就有点僵硬了，你自己读着通顺就好啊。 4、文章内部用词要有多样性，要适当地用一些高级的词汇，如重要的这个意思，你不要只用important, 这样显得你不认识多少单词，可以用significant, vital, essential, of great importance, core, 这种意思相近的单词或者是意群来表达，这样他们就认为你词汇量大了。 5、写综合写作最能体现你的词汇量和句型的多边性，所以不要直接照抄听力或者是阅读的内容，这样就表现不出你自己了，多看看新概念4里面的表达方法，哪些句型神马的都很好，对考试很有用！！！ 6、模板没有对错之分，你自己需要好一个模板，然后自己用自己弄出来的，这样比较好，不过这种东西都差不多，重点还是看个人的表达神马的，还有词汇量什么的。

新托福满分作文范文(30篇).pdf

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托福写作满分范例

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GOOD 29 When you are assigned an important presentation for work or school, you prefer to work on it right away so that you can work on it a little bit every day, or wait until you have a good idea about the presentation Though novel ideas can help better assignments, I prefer to work on the presentation as soon as I am assigned it. First, the presentation cannot be done just by creativity, but by proper arrangement. A job plan, manageable, precise and rational, is not only the bed rock of completing but also the guarantee of time-saving. For instance, preparing the material for the topic, researching some knowledge in the textbooks and discussing the task with the other students in group are the things that you can do even when you do not have any inspiration. So redistributing your plan can avoid wasting your time waiting. Second, good idea is always late for your deadline, a regret that can be eliminated by right-away action. The more time you waste on planning and considering your presentation, the less time you will have to revise and complete your assignment. Take my brother Jim for an example. He is a freshman in university and quite into the first presentation in the opening of semester. Spending the last 4 days engaging in assembling the ideas, he, with barely nothing innovative, has no time typing a practicing so that he needs to stay up late the last night to catch up in time. As a result, he can not hand in the presentation when the de adline comes and he is “booed” by audiences. Last but not the least, instant preparation is the embryo of creative ideas, which can not be born without practical exercises. What’s more, only by preparing the work bit by bit can you have high motivation to finish the task because you do not need to be hurry. If you had been in a rush, you would have reduced your impetus to a standard of “just finishing”. All in all, all the evidence confirms undoubted conclusion that when people are assigned an important presentation for work or school, we should choose to work on it right away in order to work on it a little bit every day.

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托福 tpo26 综合写作范文

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托福独立写作满分范文30篇

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