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下列与动物分类有关的说法,错误的是:
- A.狮、虎、豹都是大型猫科动物
- B.长臂猿和大猩猩同属于灵长目
- C.节肢动物门的动物种类最多
- D.鳄鱼和大鲵都属于两栖动物
相关专题: 灵长目 节肢动物 长臂猿
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相关问题推荐
填入划横线部分最恰当的一句是:
A.这样的社交生活需要强大的大脑|B.族群成员的相处并非易事|C.人类群体的规模上限取决于大脑皮层|D.双边关系数量的激增促进了大脑的进化|
Section B
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
Passage One
Questions 52 to 56 are based on the following passage.
When global warming finally came, it stuck with a vengeance(报复). In some regions, temperatures rose several degrees in less than a century. Sea levels shot up nearly 400 feet, flooding coastal settlements and forcing people to migrate inland. Deserts spread throughout the world as vegetation shifted drastically in North America, Europe and Asia. After driving many of the animals around them to near extinction, people were forced to abandon their old way of life for a radically new survival strategy that resulted in widespread starvation and disease. The adaptation was farming: the global warming crisis that gave rise to it happened more than 10,000 years ago.
As environmentalists convene in Rio de Janeiro this week to ponder the global climate of the future, earth scientists are in the midst of a revolution in understanding how climate has changed in the past, and how those changes have transformed human existence. Researchers have begun to piece together an illuminating picture of the powerful geological and astronomical forces that have combined to change the planet's environment from hot to cold, wet to dry and back again over a time period stretching back hundreds of millions of years.
Most important, scientists are beginning to realize that the climatic changes have had a major impact on the evolution of the human species. New research now suggests that climate shifts have played a key role in nearly every significant turning point in human evolution: from the dawn of primates (灵长目动物) some 65 million years ago to human ancestors rising up to walk on two legs, from the huge expansion of the human brain to the rise of agriculture. Indeed, the human history has not been merely touched by global climate change, some scientists argue, it has in some instances been driven by it.
The new research has profound implications for the environmental summit in Rio. Among other things, the findings demonstrate that dramatic climate change is nothing new for planet Earth. The benign(宜人的) global environment that has existed over the past 10,000 years—uring which agriculture, writing, cities and most other features of civilization appeared—s a mere bright spot in a much larger pattern of widely varying climate over the ages. In fact, the pattern of climate change in the past reveals that Earth's climate will almost certainly go through dramatic changes in the future—ven without the influence of human activity.
Farming emerged as a survival strategy because man had been obliged_.
A. to give up the former way of life
B. to leave the coastal areas
C. to follow the ever-shifting vegetation
D. to abandon his original settlement
依据这段文字,我们无法推出的是
A.能在猪身上奏效的东西,在人身行奏效的几率也会更高
B.在医学世界里,猪能救人命的期待指数有可能越来越高
C.器官高度相似性,使猪-人器官移植已开始发展起来
D.与人类一样,猪也可能患上动脉硬化和心肌梗死等疾病
A.这样的社交生活需要强大的大脑
B.族群成员的相处并非易事
C.人类群体的规模上限取决于大脑皮层
D.双边关系数量的激增促进了大脑的进化
这段文字意在强调( )。
A:生物多样性是人类赖以生存的基础
B:如何保护地球生物多样性
C:多样的地球生物的种类正呈锐减趋势
D:人类活动对地球生态系统产生严重影响