考满分50 写作检测 写作检测结果页

分享小红书，免费领会员
模考结果

综合写作

评分结果

?
Limited，17分以下 ?
本次练习耗时 20min
查看模考评分报告
本次模考获得成长值
+0
距下一级还差 0 成长值
结果详情
task1 task2

Si-Rater 写作机评

登录后使用AI批改

我的作文
自测得分： --
总评 --
根据ETS官方评分标准，预测口语得分
  • 证明观点的能力 Development 0
  • 语言组织能力与逻辑 Organization 0
  • 语法与词汇的使用 Use of grammar and vocabulary 0
分数计算中，请稍后
重新打分
计算本篇分数
The passage introduces the topic of challenges among the trip to the Mars and states that there are three problems that making the Mars exploration difficult and even impossible. The lecturer points out three solutions to each of the three claims made in the passage.
Firstly, the reading passage makes clear that it takes at least two years for a round-trip to Mars, making it difficult for astronauts to live without enough essentials for such a long time. The lecturer, however, believes that there are flaws in the author's position. She argues that astronauts can have access to sufficient food supplies and oxygen because of a special plant, which could live in water and only occupy small space. Therefore, astronauts are able to cultivate food crops in the spaceship and get fresh air produced by those plants.
Secondly, according to the passage, the zero-gravity environment is detrimental to human bodies so astronauts are not able to stand it for a long time. The lecturer, on the other hand, argues that human body actually can stay in such environment for months and the decreased muscle and lowed bone density can get recovered.
Finally, the reading passage claims that space radiation is extremely dangerous and cannot be fixed by equipping shields as they are too heavy. Cast doubts on this claim, the professor points out that space radiations have not reached the dangerous level and they are not in the space all the time as the sun only emits them occasionally. Small shield can be added
查看全文 收起全文
本题统计：写了 254字 共练习 20min
题目信息
阅读材料

Scientists are considering the possibility of sending humans to Mars in the coming decades. Although there have been successful manned missions to the Moon in the 1960s and 1970s, Mars is 150 times further away from Earth than the Moon is. Thus the project of sending humans to Mars would require solving an array of problems the Moon missions did not have to face. One problem is that a round-trip to Mars and back is likely to take at least two years. The trip to the Moon lasted only a few days, and it was easy to bring enough supplies of food, water, and oxygen; but the cargo capacity of space vehicles is too limited to put on board the food, water, and oxygen required by a crew for a period of two years. Without those essentials, though, a Mars mission is impossible. A second problem is that astronauts on the Mars mission would be in the zero-gravity environment of space for many months at a time. Spending a long time in the zero-gravity environment has negative effects on the human body, such as decreased muscle mass and lower bone density. Over the course of a two-year mission, the effects would be so severe, they would make it impossible for humans to make the trip without experiencing grave medical problems. Finally, astronauts on a mission to Mars would be exposed to dangerous levels of space radiation, much of which comes in the form of charged particles emitted by the Sun. Earth’s magnetic field, which normally protects us from dangerous solar radiation, would not be able to protect a spaceship traveling in interplanetary space. Constructing a shield that would protect the whole spaceship from space radiation is at present impossible because it would add too much weight to the ship.

听力材料
查看听力原文
精听听写练习
>
Now listen to part of a lecture on the topic you just read about.

A trip to Mars will definitely be challenging, but scientists have proposed solutions to the problems the reading selection discusses. First of all, food, water, and oxygen. Well, astronauts can use hydroponics.

Hydroponics is a technique for growing plants with their roots in water rather than in soil. It requires relatively little space. Using hydroponics, the astronauts should be able to cultivate food crops in the spacecraft. In addition, the hydroponically grown plants will recycle wastewater and release it as clean water vapor, which can be collected as drinking water. And of course, all plants absorb carbon dioxide and release oxygen, so thanks to hydroponics, the astronauts will also have fresh air to breathe.

Second, the effects of zero gravity. Over the last few decades, we have launched several space stations orbiting the Earth, and a number of astronauts have spent many months on them in a zero-gravity environment. These astronauts have learned to use several techniques to safely manage the effects of zero gravity. For example, regular exercise prevents the decrease in muscle mass. Likewise, taking vitamins and minerals like calcium slows down the decrease in the astronauts’ bone density.

Third, solar radiation. Astronauts traveling to Mars will be exposed to some solar radiation, but this radiation will not be at dangerous levels all the time. The Sun only releases dangerous amounts of radiation occasionally, during periods when it’s particularly active. In order to avoid this threat, the spacecraft could be equipped with special instruments that monitor solar radiation, and with a small shelter that is shielded against radiation but doesn’t add much weight to the ship. Most of the time, the astronauts would go about their normal business in unshielded areas of the spacecraft. But when their instruments detect increased radiation, they could stay in the small shielded area until the danger has passed.

问题

Summarize the points made in the lecture, being sure to explain how they respond to the specific concerns presented in the reading passage.

本题优质内容
  • 网友思路
  • 高分作文
  • 范文
  • 名师思路
  • 查看更多数据>>

  • In the lecture, the professor casts doubt on the reading passage’s idea that a manned mission to Mars would be impossible due to challenges related to supplies, zero gravity, and solar radiation. The professor asserts that scientists have proposed viable solutions to each of these issues.

    Firstly, the passage claims that a round trip to Mars would take at least two years, and space vehicles lack the cargo capacity to store enough food, water, and oxygen for the crew. By contrast, the professor asserts that astronauts could use hydroponics, a method of growing plants in water instead of soil. This technique requires little space and would allow astronauts to cultivate their own food. Additionally, hydroponically grown plants would recycle wastewater into clean drinking water and produce oxygen, ensuring a sustainable supply of essential resources.

    Secondly, the author of the passage points out that prolonged exposure to zero gravity would cause severe health issues, such as muscle loss and reduced bone density, making long-duration space travel dangerous. However, the lecture notes that astronauts on space stations have already learned to manage these effects through regular exercise and by taking vitamins and minerals like calcium, which slow down bone density loss. These techniques would help astronauts maintain their health during a Mars mission.

    Lastly, the reading states that astronauts would be exposed to dangerous levels of solar radiation, and constructing a protective shield for the entire spacecraft would be impractical due to weight concerns. On the contrary, the professor contends that the Sun only releases dangerous radiation intermittently. The spacecraft could be equipped with instruments to monitor solar activity and a small, lightweight shielded shelter. Astronauts would stay in the unshielded areas under normal conditions and move to the shielded shelter only during periods of high radiation.

  • 会员福利内容准备中，丰富答题思路即将上线

最新提问

分数说明

1. E-rater 是ETS在托福考试中真实使用的写作机评系统，具有很高的参考价值。因真实的考试中还有人类评分的环节，因此机器评分不能简单等同于最终的考试分数

2. 经过对测试用户写作成绩数据分析，考满分老师为大家提供了 E-rater 与真实考试分数的对应关系，供参考：

原始分数与水平对应关系
（老师会跟进数据并不定期更新）
机评分数 参考成绩
5 - 6 25 分以上
3 - 4 18 - 24 分
1 - 2 17 分以下