That's why it looks different from other stars. Most stars look small. We can see them only at night because they're so far away and the sunlight is so strong that we can't see them only by our eyes.Around the sun A planet is a large ball made of rock or gas(气体). We live...
根据Thesunisthecloseststartotheearth.(太阳是离地球最近的恒星。)可知,离地球最近的恒星是太阳。故选A。(3)词义猜测题。根据 Aplanetisalargeballmadeofrockorgas.Weliveononeofthem--theearth.(行星是由岩石或--组成的大球体。我们生活在其中一个--地球上。)可知,我们生活的地球由岩石和气体组成,故推测"gas...
Mars' surface is covered by iron dust and volcanic basalt rock. The composition of Mars consists of minerals, metals and other elements.
Fumaroles, boiling cauldrons, hot mud and springs — the geothermal activity is evident everywhere here. Gas rising from the bowels of the Earth bubbles up through the acid lake.火山喷气孔、沸腾的汽锅、热泥浆和温泉——地热活动在这里随处可见。气体从地球内部穿过酸湖冒出来。The two biologists' fir...
In that sense, Earth is probably unique. Although we may detect some life elsewhere, it will necessarily be completely different.从这个意义上说，地球可能是独一无二的。虽然我们可能会在其他地方发现一些生命，但那肯定是完全不同的。It was this mind-blowing series of improbable events that made Earth...
Most of Earth is covered by water.Mars is known as the Red Planet. Scientists arestudying Mars for signs of life.Jupiteris the largest planet in our solar system. Itis made of gas.Saturn is surrounded by bigger rings than anyother planet.* They are made of ice, dust(尘埃),and rock. ...
11. What is the purpose of the woman's call? A.To invite the man to dinner. B.To change an appointment. C. To invite the man to visit their friends. 12. What will the man do next Saturday? A.Go on busines...
In the 1960s, humans set out to discover what the red planet has to teach us. Now, NASA is hoping to land the first humans on Mars by the 2030s.
What is the Moon Made Of? How Far is the Moon? What is the Temperature on the Moon? Tuesday, Feb. 17 – Mars What Would It Be Like to Live on Mars? Humans have long-dreamed about potentially colonizing the Red Planet, but what would it really take for humans to comfortably live on...
impact–n. an act or event in which something strikes another thing asteroid–n.a space rock, that can be small or the size of a large moon, that orbits the sun comet–n. an outer space object that is made of m...