托福听力天文学难吗 托福听力天文学怎么做？

 大家好,小编在这里为大家推荐托福听力天文学难吗 托福听力天文学怎么做?,帮助大家增加了解,解决疑惑。

一、托福听力天文学难吗

 (1)信息缠绕

 天文学讲座为了把一个内容讲透,常常会引入另一个同等复杂的内容比如,为了讲清楚某个系外行星,先给你讲一颗太阳系里类似的,然后再拐回来说之前的那颗。

 (2)生僻单词较多

 二、托福听力天文学怎么做?

 大家要记住托福是语言类的考试,如果你觉得学术知识是障碍,那大概率是因为听的时候没有能够很好地抓重点,练习更有效率地提取信息是关键。下面是天文学例题:

 1. What does the professor mainly discuss?

 A) The idea that the orbits of some planets have changed over time

 B) The theory that our solar system once contained more planets than it

 does now

 C) Whether the gas-giant planets exert gravitational influence on one

 another

 D) The origin of the material from which the gas-giant planets formed

 2. Why does the professor discuss Earth’s Moon?

 A) To help students envision the sizes of planetesimals and asteroids

 B) To introduce the concept of planetary formation

 C) To suggest that the planetary-migration hypothesis deserves serious

 consideration

 D) To provide evidence that the planets in our solar system are no longer

 changing orbits

 3.According to the planetary-migration hypothesis, what was responsible for the orbital shifts of the gas giants?

 A) Collisions between the gas giants and their moons

 B) Changes in the mass of gas giants as they passed through areas of dust and gas

 C) Gravitational interactions between Jupiter and the other gas giants

 D) Gravitational interactions between the gas giants and small bodies of

 rock and ice

 4. What difference between Jupiter and the other three gas giants does the professor emphasize?

 A) Only Jupiter gained orbital energy.

 B) Only Jupiter moved closer to the Sun.

 C) Only Jupiter caused planetesimals to be ejected from the solar system.

 D) Only Jupiter absorbed planetesimals into its core.

 5. What did a computer simulation demonstrate?

 A) Jupiter and Saturn are made of the same material of which asteroids are made.

 B) The orbits of Jupiter and Saturn have shifted at least twice since the

 solar system formed.

 C) A shift in the orbits of Jupiter and Saturn could help explain why the

 asteroid belt formed.

 D) A shift in the orbits of Jupiter and Saturn could help explain why some

 areas of the asteroid belt are empty.

 6. What point does the professor make when he discusses the existence of “hot Jupiters” in other solar systems? [choose two answers]

 A) Hot Jupiters have small orbits.

 B) Hot Jupiters in other solar systems may have formed in our solar system.

 C) Gas giants cannot form close to their sun.

 D) The planet Mercury has moved closer to the Sun.

 综上所述,小编为大家整理这些托福听力天文学难吗 托福听力天文学怎么做?,希望能够帮助大家。

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