科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:填空題
選詞填空。 | |
根據(jù)短文內(nèi)容,用方框中所給的單詞填空。
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What is the greenhouse(溫室)effect? Have you ever been inside agreenhouse, the allglass building where plants are 1 ?It's very warm, because the glass walls allow the sun's rays(光線)in but keep the heat from getting out. Think of the earth as being 2 a large green-house. The gases act like a greenhouse's glass walls-they keep the heat from getting out into space,and the earth stays warm. Try,this easy 3 :Take two jars (大口瓶) and put a teaspoon of water in each jar. Put a lid (蓋子) on just one jar. Place __4 jars in a aunny place. After a few hours,check on the jars. You'll see that the open jar hasn't changed,but the closed jar will be hot inside. What happened? The heat from the sun 5 not get out from the closed jar. |
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科目: 來源:河南省中考真題 題型:閱讀理解
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科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:填空題
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科目: 來源:同步題 題型:完形填空
完形填空。 | ||||
Many people today like reading stories about UFOs. Many people in different countries are 1 UFOs. But what are UFOs? There are some different ideas about UFOs. 2 popular one is that UFOs carried visitors coming from other stars.They 3 to fly much faster than planes on the earth. UFO scientists and many other people believed it.Some people said that they saw a few UFOs 4 on the earth;some people said they saw some strange visitors 5 the UFOs; others even said they were taken 6 in the UFOs,and then were sent back. Some people made mistakes (犯錯誤) when they said they ever saw UFOs. They 7 saw a weather balloon(氣球) or a plane,or the light in the sky(天空) 8 the ground. Sometimes it is the light from the moon. But there are a lot of other things we can't understand. Now people cannot see UFOs clearly 9 .It may 10 many years to find a clear answer. Then people will give the UFO another name. | ||||
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科目: 來源:同步題 題型:閱讀理解
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科目: 來源:同步題 題型:閱讀理解
Some day you may go to the moon. A tall rocket will take you into space. The rocket flies a long
way to a space station. You will stop there for a short time. Then a big spaceship will take you to the
moon.
About three days later,the ship slowly goes down and gets to the moon. You are now on the moon,
but you can not leave your spaceship. You must put on a space suit for the moon.It is very hot in the day
and very cold at night.If you don't wear a space suit,you can't live there. You jump out of the spaceship
and begin to walk.The moon is much smaller than the earth. The things on the moon are lighter than those
on the earth. You jump high in the air every time you take a step.
The moon moves slowly, so one day on the moon is as long as two weeks on the earth and one night
is just as long as two weeks on the earth. It never rains on the moon, and everything on the moon is dry.
There are no trees or other living things of any kind. There is nothing to do there. The earth is a far better
place to live on,but scientists are trying to make the best of the moon.
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