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拯救我的托福话题英语·探索篇

2017-10-07 09:02:00来源：网络

　　《拯救我的托福话题英语·探索篇》特别针对托福考试的考生！新东方在线托福网为大家带来《拯救我的托福话题英语·探索篇》图书介绍及下载相关资讯，希望对大家托福备考有所帮助。更多精彩尽请关注新东方在线托福网（http://toefl.koolearn.com）!

《拯救我的托福话题英语·探索篇》

拯救我的托福话题英语·探索篇

　　编辑推荐

　　《拯救我的托福话题英语. 探索篇》适合中高级英语学习者，特别针对托福考试的考生，也适合其他英语爱好者参考。

　　目　　录

　　前言

　　使用本书

　　太阳系

　　地球

　　地球运动

　　地球磁场

　　月食与日食

　　季节

　　气候

　　潮汐

　　氮循环

　　氧循环

　　水循环

　　地壳板块

　　在线试读部分章节

　　The Sun is a huge mass of hot， glowing gas in the Milky Way Galaxy. The strong gravitational pull of the Sun holds Earth and the other planets in the Solar System in orbit.

　　The Sun is made up mainly of hydrogen and helium. Like other stars， the Sun’s energy is generated by nuclear reactions at its core. The Sun represents over 99.86 percent of the total mass of the Solar System.

　　Pluto was discovered in 1930， and it was long considered the ninth planet of the Solar System. Now， Pluto has been classi.ed as a plutoid.

　　Neptune is the eighth planet from the Sun; its atmosphere， composed of hydrogen， helium and methane， gives Neptune its bluish color.

　　Uranus is the seventh planet from the Sun， also the third largest planet. Uranus is composed mainly of rock， ice and hydrogen.

　　Saturn is the sixth planet from the Sun， also the second largest planet. The .rst person to see the rings was the Italian scientist Galileo in 1610， using one of the earliest telescopes.

　　Jupiter is the .fth planet from the Sun， also the largest. Unlike the rocky inner planets of the Solar System， Jupiter is a ball of dense gas and has no solid surface.

　　Asteroid belt is circular region between Mars and Jupiter containing the greatest number of asteroids.

　　Mars is the fourth planet from the Sun. Mars's crust contains iron oxide， giving it its reddish color. Topic No. Solar System

　　Earth is the third planet from the Sun. Up to now， it is the only planet with evidence of life.

　　Venus is the second planet from the Sun. Mercury is the planet closest to the Sun. It is marked by extreme variations in temperature.

　　2 Earth地球

　　Earth is the only planet that we know of that provides the right conditions for life. Earth is just the right distance from the Sun so that temperatures are neither too hot nor too cold for living things to survive.

　　There is liquid water， and there is oxygen in the atmosphere， both vital for life. Earth‘s atmosphere and oceans help to control temperatures.

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