山东省淄博市高青县2020-2021学年（五四学制）六年级下学期英语期末试题试题详情
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Earth(地球) is a planet and Mars (火星) is too. People, animals and plants live on Earth, but can they live on Mars? Earth has water. But what about Mars?
People want to find out about other planets like Mars. So Robot Landers have been made(被制作) to help them. This Lander was one that went to Mars. It has a long arm with a camera on it.
The Lander is inside this spacecraft(宇宙飞船). The spacecraft blasts into space. It will take a long time to get to Mars. When the spacecraft is there, the Lander comes down to land on Mars.
The Lander is on Mars. Mars looks like a desert on Earth but it is very cold. Now the Lander has a job to do.
The Lander digs(挖) in the ground to get soil(土壤). People on Earth look at the soil. What is the soil like? What is under the soil? Is there water here? The Lander helps people on Earth to find out.
The sun is going down. Night will come to Mars. The sun helps the arm on the Lander to move. When there is no sun, the Lander will not work.
People can go into space. They can walk on the moon, but can they go to a planet like Mars?
Robot Landers like this one can help people find out.
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