When we talk about the universe(宇宙). We usually talk about the sun, the Earth, the moon and the stars.

    The Earth moves around the sun. And the moon moves around the Earth. The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun. Because it's much nearer to the Earth.

    The sun is very bright. It gives very strong light. The moon looks quite bright, too. But it doesn't give any light at all.

    The moon looks bigger and brighter than the stars. But in fact the stars are much bigger and brighter than the moon. They look smaller than the moon because they're much farther away from us.

① The sun is the (big) thing in our solar system.

②Mercury(水星) is the first planet in the solar system, so it is the (near) to the sun.

③Venus(金星) is the brightest planet in the sky. It's much (hot) than any other planet.

④The Earth is the third planet. It's very near to the sun. It’s one of the (hot) planets.

⑤Jupiter(木星) is the biggest and heaviest planet. It's much (big) than the Earth.

⑥Neptune(海王星) is very far from the sun. It's one of the (cold) planets in the solar system.

— Because I got up late.

— Every two days.

① It is (warm) today than it was yesterday.

② Toronto is the (large) city in Canada.

③ This is the (big) apple in the bag.

④Henry is the (weak) among us.

⑤ It was very hot yesterday but today is much (hot) than yesterday.

⑥ Elephants are the (heavy) animals on land.

①east(对应词)

②America(形容词)

③where is(缩写形式)

④Ca da(补全单词)

⑤M co(补全单词)