1、Look and say!Are there any people on the moon?Are there any trees on the moon?Is there a rabbit on the moon?Unit 8 The Universe Part BThe moon is in the sky.The sun is in the sky.月亮的直径为月亮的直径为3476.2千米千米地球的直径为地球的直径为12756千米千米太阳的直径：太阳的直径：1390000千米千米,约为地球的约为地球的109倍倍银河系的直径约为银河系的直径约为100,000多多光年光年，总质量是太阳质量，
2、总质量是太阳质量的的1400亿倍亿倍 1光年光年=九万四千六百亿公里九万四千六百亿公里 They are very big!They are big,but they look small.Why?Because they are far away from us.They look small.arm胳膊farm农场May五月wayfar away距离很远way路fathe sunthe earththe moon太阳与地球的距离大约为太阳与地球的距离大约为15,000万公里万公里 _ is far away from us.The sunWhen can we see the sun an
3、d the moon?We see the sun_.We see the moon _.at night in the day in the dayat nightday and nightgo aroundThe earth goes around the sun.The moon goes around the earth.The stars are all _ _ _.The stars are _ _ from us.The sun shines _ and _.The earth _ _ the sun.The moon _ _ the earth.in the sky far away day night goes around goes around Homework:
