内容正文:
中考热点时文语法填空专项练习(三)(原卷版)
第一篇:
石头竟然会走路?
Each day is a new adventure, waiting for us to discover and experience its wonders. Can you imagine stones move on 1.________ (they)own, leaving behind a trail? That’s what happens in Death Valley National Park in the US. Amazing, isn’t it? But 2.________does this happen?
In fact, not all of the stones there move. Those that have moved don’t move at the same time or in the same 3.________(direct). Some seem to have made abrupt (突然的) 90-degree 4.________(turn). People have noticed that the stones moved a distance from tens of meters to 5.________(hundred)of meters long.
Since the early 20th century, people had been trying 6.________(explain) this strange thing. It was not until 2014 that they found out that the 7.________(move)stones are “the result of a perfect balance of ice, water, and wind”, said the website of the National Park Foundation. In the winter, rain 8.________(fall) on the ground and freezes at night. The next day, it melts (融化) and breaks up 9.________thin ice sheets. With 10.________help of wind, the ice sheets move forward, pushing the stones with them.
第二篇:
世界最深人工钻井
When astronauts in Shenzhou-17 were flying high to study space, scientists 1._________(dig) deep to study the center of Earth!
Earlier in May, China started drilling (钻) its first over 10,000-meter-deep borehole (钻孔) in Xinjiang. By Oct. 1, the hole was already 7,856 meters deep, 2.________(report )Xinjiang Daily.
The borehole has a planned depth of 11,100 meters. It will take 457 days to dig, said Bloomberg News. When it 3._________(finish), it will become the deepest hole in China and one of the deepest in the world.
The drill will go 4._________ more than ten layers of rock. The oldest layer is about 145 million years old. The Earth has lots of heat inside. So as the drill goes 5._________(deep), it faces higher and higher temperatures. The metal drill could get so hot 6._________it would become as soft as noodles. The company doing the pr