making Chengdu Plain a fertile land free from drought and flood and one of the most important grain producing areas in China. As the oldest water conservancy project in the world which is still in use and has no dike to control water, the Dujiangyan engineering reflects the wisdom of harmonio...
Well, this land may receive just a few inches of rainfall a year, over a big enough area, a couple inches can add up to a huge amount of water.这片土地的年降雨量或许不过几英寸，但在一片足够大的区域，几英寸降雨量相加可得大量的水。And you'll typically find an oasis at a low point ...
They will test different medicines to find a way to deal with it. To get things better, they will also offer medical care and help train local nurses there. d ___ A strong earthquake hit Turkey on February 6. More than 8,000 ...
If you are in a spaceship and6 the Earth from space, you will find that there aresome large blue parts. They are the seas and about 70% ofthe Earth's surface(表面) is water.We live on the outside part of the Earth. Around us isthe air. It takes the Earth 24 hours to turn ...
Beyond rock salt’s ability to clear icy streets, it can also be destructive. Chloride ions (氯离子) can cause wear and tear on vehicles and facilities. Increasing chloride densities in North American lakes could b...
"Yogis are known to hold inversions for long periods of time — 12 minutes, and I've even read there are some who hold them for hours. On the personal level, while I don't hold inversions anywhere near that long, I find them to be very therapeutic." So although inverse suspension can...
by water由水路 by land从陆路 by sea从海路 by air乘飞机 (3) 用“in/on + 冠词/形容词性物主代词/指示代词 + 交通工具名词”表示交通方式。 其中,in多用在car等交通工具之前,而on多用在bike/horse/bus/train/ship等交通工具之前,它们的用法与“by + 交通工具名词”的用法相同。例如: She often goes...
Lets Do Something to Save Our Environment It is recently reported that some rivers and lakes have dried up in South China. A lot of fishes died. The bottoms of the rivers and lakes have become grass land. The water is becoming less and less because of the bad weather. ...
Since then, actions have been enforced so that such a phenomenon of desertification will not happen again.To avoid the reoccurence of desertification, people are encouraged to find other livelihoods which do not rely on traditional land uses, that are not as demanding on local land and natural ...
We are really not conscious of the harm that we are doing to the planet and ourselves. We are like the frog that goes into the pot of water, and the fire’s turned on and the water gradually gets hotter. But the frog doesn't want to get out because the water’s comfortable – ...