Every year, humans destroy approximately 10 million hectares of trees, a land area roughly the size of Portugal.人类每年摧毁约1000万公顷的树木，大致相当于葡萄牙的国土面积。By destroying the world's forests, humans are eradicating one of the planet's primary carbon sinks.由于对森林的毁坏，人类正在...
adinosaurs lived on earth for more than 150 million years.then,suddenly,they all died out.nobody knows why.however,we can learn about them from their fossils. 恐龙在地球上居住为超过150百万years.then,突然,他们所有死去的out.nobody知道why.however,我们可能得知他们从他们的化石。[translate]...
20 million hectares of forests are disappearing, the average of one hour there is a kind of species extinction. Also, the Earths temperatures are rising, the Antarctic ice
解析 【答案】have been【详解】 考查therebe句型和时态。 句意:在过去的5 亿年里,地球上有五次生命几乎灭绝。 根据 时间状语In the last 500 million years可知, 句子用现在完成时。 此处考查there be句 型, 主语five times为复数形式, 助动词用 have。 故填have been。
the 55th World Earth Day.This year's theme is "Planet vs. Plastics." Humans consume about 1 million plastic bottles every minute, and more than 5 trillion plastic bags are used each year. China's capacity and o...
It's a loss of 800 million people. 那就是减少了8亿人。 South Korea's will be down by 63 percent, Poland's and Japan's by half, Italy's and Thailand's by 44 percent, Eastern Europe by 40 percent. 韩国人口将减少63%, 波兰和日本各减少一半, 意大利和泰国减少44%, 东欧减少40%。
2. In the last 500 million years, there have been five timeswhen life on Earth has almost ended在过去的五亿年中,地球上出现过五次生物几乎全部灭绝的情况。(when引导定语从句 答案 答案见上相关推荐 12. In the last 500 million years, there have been five timeswhen life on Earth has almost end...
In recent years, China has been continuously breaking records in terms of deep-Earth development. In 2023 alone, more than 70 wells drilled in the Tarim Oilfield had reached depths exceeding 8,000 meters, delivering a total production of 19.57 million tonnes of ultra-deep oil and gas. ...
Hidden in a steep-sided valley, fenced off by four cliffs, their hometown was secluded for hundreds of years. To reach the nearest town, the locals had to spend more than three hours clambering over hill and dale, following paths only suitable for foot traffic. ...
The rate of movement has increased, with the pole migrating northward at about 40 miles (64 km) per year currently, compared with the 10 miles (16 km) per year estimated in the 20th century. 16. The pole flip-flops (Image credit: Dreamstime) In fact, over the past 20 million years,...