When you look at the sky at night，the moon looks bigger than the stars． In fact，the moon is much smaller than the stars．It is much smaller than the earth． But the moon is much closer to us than any star． That is why it looks so big． If you hold a coin close．to your eye，it looks big．If you look at it across the room，it looks small．The moon moves around the earth． It makes one trip in about four weeks． The moon looks flat(扁的)to us． But it is a round ball，like the earth．People once thought the moon had fire(火) on it． They thought the fire made it bright．Now we know the moon is like a mirror( 镜子 )． It gets its light from the sun Our sunlight comes from the sun，too: What is the sun? The sun is star． The stars we can see have their own light． There are many big stars we can-t see． Their light has burned out． Others are still bright，but they are so far away that we can-t see them． The sun looks bigger and much brighter than other stars because it is the nearest of all stars． The sun and the other stars we see are very hot，but the air around us saves us from(使------免于) the heat(热量) of the sun．The sun gives us light and warmth．It makes plants grow and leaves turn green． It makes life possible on our earth．It is a life-giving star．( )21． The moon looks bigger because__________ ．
A． some stars are smaller than it
B．it is between the sun and the earth
C．it is the closest to the earth
D．it is very bright
On a clear night you can see myriad stars ______ in the sky.A. twinklingB. glist
Next time you see a pigeon flying___1___the sky,look at it carefully! Is it hold
Do you want to know something about the history of weather？ Dont look at the sky
The sky is blue and the clouds are white.The-|||-white clouds look like many sai
[问答题]A set of golden lights hovering silently in the night sky in a “V” formatio
[单选题]Hi, haven't seen you for ages! You look fine._________。 You look well, too.
Can you ___ what you were doing on the night of the event?A. reciteB. recipeC. r
[单选题]How are you? You look nice!______________.A.Thanks, so are you B.Thanks, so
[问答题]You should look around before you cross the street.
[单选题]Can you tell us ________ last night?A.what they doB.what they didC.what did