Earth is the planet of life. Running, crawling or flying, life abounds everywhere.地球是一个满是生命的星球。奔跑着的、爬行着的或飞翔着的，到处都是生命。But for all this beautiful diversity to have proliferated, Earth has had to provide a favourable environment for around four billion years. ...
Because of the discrepancy between Earth’s polar and equatorial diameter, astronomers and scientists often employ averages. This is what is known as its “mean diameter”, which in Earth’s case is the sum of its polar and equatorial diameters, which is then divided in half. From this, we...
We don't know how long it will take our trash to break down or how long the landfill liners will last . What we do know is that each of us has a choice about what we do with our garbage . About half the things we throw ...
10.After searching for half an hour, she realized that her glasses ___D__ on the table all the time. A. were lain B. had been lain C. have been lying D. had been lying 11.Facts show that as many as 50 percent of patients do not take drugs ___B___ directed. A . like B...
火星是距离太阳的第四个星球,是地球的下一个星球.Mars is the only planet whose surface can be seen from Earth.火星的表面是唯一一个可以从地球上就能看到的.It is about half the size of our planet.它是地球体积的一半.The ancient Romans named it after their god of war because of its red color...
The ocean covers more than 70% of the Earth’s surface. It produces at least half of the planet’s oxygen and absorbs around 30% of the carbon dioxide produced by humans. The sea is home to most of our biodiversity and 3 billion peop...
The Taklamakan Desert is known as the “Sea of Death”. More than half a century ago, a Swiss expedition stepped into this intimidating, barren land, in the end, all died of hunger and thirst except one survivor. That was then. Today, one would be shocked by the magnificent greenery in...
D. Electronics account for half of poisonous heavy metals on the earth. 4.Which can be the best title for this passage? A. Why is the earth getting warmer? B. What can we do about pollution? C. How can you lead a greener life? D. Who is to blame for global warming?
This piece is, what, about a half an hour long? 这首曲子有,嗯,大约半个小时那么长,对吗? 柯林斯高阶英语词典 Guess what? I'm going to dinner at Mrs. Combley's tonight... 你猜怎么着?今晚我要去康伯利夫人家里赴宴。 柯林斯高阶英语词典 Do you know what? I'm going to the circus this...
C. 99 of the pesticides used on crops is effective in practice. D. Electronics account for half of poisonous heavy metals on the earth. 75. Which can be the best title for this passage? A. Why is the earth getting warmer? B. What can we do about pollution? C. How can you lead...