1. Sun太阳,  Earth地球,  Moon月亮,  Mercury水星,  Venus金星,  Mars火星,  Jupiter木星,  Saturn土星,  Uranus天王星,  Neptune海王星,  

The Solar System太阳系,  close to接近,  far from远离.

2.…….. is ……….. than ………. 

.....比.....更.....。

…….. is ……….. than ……….

.....比......更.....

Jupiter is bigger than Saturn.

木星比土星更大。

Saturn is smaller than Jupiter.

土星比木星更小。

Jupiter is heavier than Saturn.

木星比土星更重。

Saturn is lighter than Jupiter.

土星比木星更轻。

Jupiter is hotter than Saturn.

木星比土星更热。

Saturn is colder than Jupiter.

土星比木星更冷。

Uranus is bigger than Neptune.

天王星比海王星更大。

Neptune is smaller than Uranus.

海王星比天王星更小。

Neptune is heavier than Uranus.

海王星比天王星更沉。

Uranus is lighter than Neptune.

天王星比海王星更轻。

Neptune is hotter than Uranus.

海王星比天王星更热。

Uranus is colder than Neptune.

天王星比海王星更冷。

Mercury is closer to the Sun than Venus.

水星较金星离太阳更近。

Venus is farther from the Sun than Mercury.

金星较水星离太阳更远。

Uranus is closer to the Sun than Neptune.

天王星较海王星离太阳更近。

Neptune is farther from the Sun than Uranus.

海王星较天王星离太阳更远。

Mercury is closer to the Sun than Venus.

水星比金星离太阳更近。

Venus is farther from the Sun than Mercury.

金星比水星离太阳更远。

Moon is closer to the Earth than Sun.

月亮比地球离太阳更近。

Sun is farther from the Earth than Moon.

地球比月亮离太阳更远。

Earth is closer to the Sun than Mars.

地球比火星离太阳更近。

Mars is farther from the Sun than Earth.

火星比地球离太阳更远。

3.Debate: