()60. -How many species of animals do you think will be threatened with extinction when the surroundings around are damaged by mankind?-I expect quite a few. A. there being S B. there to be C. there have been D. there be 相关知识点: ...
How many new species of monkeys have been identified in Brazil alone over the last year? A. Eight. B. Nine. C. Ten. D. Eleven.正确答案:B解析:事实细节题。本题询问去年只在巴西一国就新发现多少种猴子。本题答案可以从文章第二段末句得出。选项B为正确答案。 相关知识点: ...
正确答案:C 解析:本题的关键是数字信息的听辨和记录。根据原文“Around 380 million years ago,only 300 species groups were left in existence”,可以判断C是正确选项。 知识模块:句子听辨 听力原文:During the past 1. 65 million years, there have been four major episodes of global cooling, which resulte...
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根据第三段“Not only can eDNA identify thousands of species in a single sample of water, but the technique can be used in the field to assess biodiversity in water and other environments faster, more comprehensively, yet also much less harmfully than traditional physical surveys.(eDNA 不仅可以...
解答 答案:D.根据真正主语how many animal species are in the danger of dying out可见空白处应为形式主语,纵观选项,唯有it可担当形式主语,故选D.注意区分主语从句B选项what…is 从句,就对了. 点评 本题考查it 形式主语,结合语义的基础上便能选出正确答案,同时要注意与主语从句不要混淆.练习...
“We could have kind of a Dow Jones index of the environment,” Fisher said. No simple answer Though taxonomists have been cataloguing plants and animals for more than 250 years, they still have no exact answer to the question, “How many species are on Earth?”“It’s a very ...
1. What could help conservation of the oceans? 1.什么可以帮助保护海洋? 2. Can we stop ourselves from aging? 2.我们可以阻止自己衰老吗? 3. Why can only some cells become other cells? 3.为什么只有一些细胞会变成其他细胞? 4. Why are some genomes so big and others very small?
But many of those species, known and unknown, are destroyed every day. Moreover, constant logging, mining and raising domestic animals cause a gradual disappearance of the Amazon jungles.How many new species of monkeys have been identified in Brazil alone over the last year A. Eight. B. Ni...
How many species can be found in a glass of ocean water? If you’ve ever been involved in a school experiment looking at ocean or river water under a microscope, you’ll know that even a single drop is filled with life, from small insects and fish you can see with your eyes down to...