1. In the last five centuries, more than 800 species have becomeextinct. A2. According to the prediction of some experts, the extinction rate of species could be one in every 20 minutes or 27,000 a year. B3. The sixth extinction in history is caused by the success of human beings. D...
Using cleaner, more natural sources of energy tochange the way we work and travel.D. All the above.Ⅲ.句式分析1. Although it is not unusual for species to die outnaturally, the rate at which this is now happening iscause for concern.【分析】本句although引导,意为“尽管”at which为“...
The numbers of small-ranged species are increasing quickly, even in well-known taxa. They are geographically concentrated and are disproportionately likely to be threatened or already extinct. Current rates of extinction are about 1000 times the likely background rate of extinction. Future rates ...
他④due to由于们发现人类活动导致物种causes, that is, the “background extintion rate”. They⑤that is也就是说灭亡的速度比正常情况快found that human activity is causing species to die out⑥cause..to do sth 使……做某事1000倍。这么多物种正在消亡的原因有很多:空1, 000 times faster than ...
is a considered a natural process and sometimes is referred to as thenormal extinction rate.Background extinctions occur over a long period of time and are less impactful to the Earth overall. Both kinds of extinction still display species being completely wiped out, but the lengths of the proc...
This time, human activity will be to blame⑧,Although it is not unusual for species to die out⑨ naturally, the rate at which this is now happening is cause for concern. A 2015study by scientists who were based at Brown University and Duke University in the US, looked at how quickly ...
More than 40% of insect species are declining and a third are endangered, the analysis found. The rate of extinction(灭绝)is eight times faster than that of mammals, birds and reptiles. “It should be of huge concern to all of us, for insects are at the heart of ev...
Although it is not unusual for species to die out naturally, the rate at which this is now happen-ing is cause for concern.虽然物种的自然灭绝并不罕见,但现在灭绝的速度令人担忧。 A 2015 study by scientists who were based at Brown University and Duke University in the US,looked at how ...
Once the wild were on the verge ofextinction, the natural ecology be ruined. 一旦野生动物趋进灭亡, 大自然的生态环境也将随之毁灭. 期刊摘选 The rate of speciesextinctionalready appears to be accelerating. 而物种灭绝的速率,也已经开始上升.
The world’s insects are going down the path of extinction,threatening a“catastrophic collapse of nature’s ecosystems”,according to the first global scientific review.More than 40%of insect species are declining and third are endangered,the analysis found.The rate of extinction is eight times ...