extinct in the next 100 years and the sixth extinction will have been caused entirely by people. Logging...如果地球面临第六次物种大灭绝，人类将难辞其咎。A SIXTH mass extinction on Earth is coming, just as many scientists feared ……

the battle for survival over the world. Are we experiencing Earth’s sixth mass (大批的) extinction event? Many scientists believe so. A mass extinction event is a worldwide and rapid decrease ……

's Geophysics Institute. "A compass needle will never point South this minute and North next minute. People may ……

3Avoiding extinction (P6)Choose the best answer:Day 3Avoiding extinction (P6)Choose the best answer...;s history.B. Dinosaurs were killed in the Late Devonian period.C. The Late Devonian extinction ……

the distant past. In fact, the last of the five mass extinction events in Earth’s history happened about 66 million years ago.However, a new study warned that the sixth mass extinction ……

SOME real bad news: We human beings are at the edge of extinction. What's worse, we don't know why... scientists have found that a mass extinction is due any moment now.Research has shown that every 62 ……

. Permian-Triassic mass extinction (二叠纪大灭绝), 250 million years ago.This is the greatest of all mass extinctions. More than 95 percent of species were killed off. This extinction was strongly linked ……

gene bank to help save giant pandas and other endangered (濒临灭绝的) animals from extinction. The gene bank ……

Earth’s sixth mass extinction is already underway – and humans are the driving force behind it, according to a new study.“Recent extinction rates are *unprecedented in human history and highly ……

like concrete (混凝土).So, next time you see a worm, show it a little respect. They really are changing the world!So, next time you see a worm, show it a little respect. They really are changing ……

高考词汇extinctionn. 灭绝（extinct adj.）Several bird species are threatened with extinction.grab vt. 抓住，吸引... that the frog relies on, which is pushing Darwin’s frog to the edge of extinction. 该句包含两个定语从句：第一 ……

你知道新任美国总统是谁吗？
HERE comes Mr Barack Obama. He will be the next US president (总统). Obama is 47 years old. He *will be the first black president in the US. He says he will bring changes (改变) to the big country. ……

in the world weighs (重) 10.17 kg. A man from the US grew it. Next, he is going to grow a big pumpkin. The heaviest carrot in the world weighs (重) 10.17 kg. A man from the US grew it. Next, he is going ……

Summer too hot? If you are complaining, you better get used to it. A new NASA study reveals a “stunning increase” in the frequency of extremely hot summers over the past six decades, and even more sizzling days are in store. Analyzing temperature data going back to the early 1950s, climatologists have determined that the likelihood of hotter-than-average summers is only getting higher. ……

Victorious, glamourous, and wealthy — that's Manchester United. It has big names like David Beckham...'s the next move? Convince the US that soccer is real. See page 5 ……