下列与动物分类有关的说法,错误的是:
Men live in society not because they are men, but because they are animals. The social way of life is a stage in the evolution of life prior to the appearance of the human race.What is distinctive about man is that he had developed social organization far more quickly than any other animal species, so that it is a giant step in complexity between the most elaborate non-human society and the most elementary society of men. Human society shares characteristics with animal societies; it is formed by a given population of individuals, all belonging to the same species. It shows an internal specialization of tasks. Individuals interact as members of the same species and possess one common language which sets them apart from other species. The level of population is perpetuated by means of biological reproduction and of constant struggle against the environment. Similarities like these became conspicuous when human social organization is compared with that of other primates (灵长目).
A、功能矫治的优势在于对错颌畸形的早期治疗和骨矫形的治疗效果,这些是通过固定矫治治疗所不可能达到的
B、功能矫治的缺点在于排牙的能力差,复杂和昂贵的制作
C、为了提高效果而经过改善的功能矫治器,却出现容易破损和难以让病人配合等问题
D、具备改善软组织功能,如吐舌,反向吞咽,口腔坏习惯和口呼吸,这些功能都对牙齿的发育和排列有重大的影响
E、压制对于舌头正确定位和功能的矫正,产生和1960年代哈佛在灵长目动物上的研究背道而驰的效果
A.多样的地球生物的种类正呈锐减趋势
B.生物多样性是人类赖以生存的基础
C.人类活动对地球生态系统产生严重影响
D.如何保护地球生物多样性
When global warming finally came, it stuck with a vengeance. 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 importantly, 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——during which agriculture, writing, cities and most other features of civilization appeared—is 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 i
许多人一想到一只蜘蛛在自己的手臂上爬,或一条蛇缠着自己的腿向上爬,就会不寒而栗,在发达国家,1%至5%的人患有蜘蛛或蛇类恐惧症。德国和瑞典的研究人员开展研究后发现,就连婴儿都会在看到蜘蛛或蛇类时作出应急反应。研究人员得出的结论是,对蛇类和蜘蛛的恐惧有其进化起源,与灵长目动物或蛇类类似,我们大脑中的结构让我们能够快速识别物体并对它们作出反应。这段文字意在说明:()
A.怕蛇和蜘蛛是想象的作用
B.发达国家更加害怕蛇和蜘蛛
C.害怕蛇和蜘蛛是人类的天性
D.人类大脑的反应机制类似蛇
A.人类大脑处理信息的能力加速进化
B.网络化社交得到长足发展
C.彼此沟通的成本进一步降低
D.有像语言那样具有革命性意义的事物出现
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&39;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 bad 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 environment 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-during which agriculture. writing, cities and most other features of civilization appeared-is 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&39;s climate will almost certainly go through dramatic changes in the future-even without the influence of human activity.
测试题
Farming emerged as a survival strategy because man had been obliged__________.
A.to give up his former way of life
B.to leave the coastal areas
C.to follow the ever-shifting vegetation
D.to abandon his original settlement
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
When global warming finally came, it stuck with a vengeance. 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 importantly, 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—during which agriculture, writing, cities and most other features of civilization appeared—is 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—even without the influence of human activity.
1. Farming emerged as a survival strategy because man had been obliged( ).2. Earth scientists have come to understand that climate( ).3. Scientists believe that human evolution( ).4. Evidence of past climatic changes indicates that( ).5. The message the author wishes to convey in the passage is that( ).
A.to give up his former way of life B.to leave the coastal areas C.to follow the ever-shifting vegetation D.to abandon his original settlement问题2: A.is going through a fundamental change B.has been getting warmer for 10,000 years C.will eventually change from hot to cold D.has gone through periodical changes问题3: A.has seldom been accompanied by climatic changes B.has exerted little influence on climatic changes C.has largely been affected by climatic changes D.had had a major impact on climatic changes问题4: A.human activities have accelerated changes of Earth’s environment B.Earth’s environment will remain mild despite human interference C.Earth’s climate is bound to change significantly in the future D.Earth’s climate is unlikely to undergo substantial changes in the future问题5: A.human civilization remains glorious though it is affected by climatic changes B.mankind is virtually helpless in the face of the dramatic changes of climate C.man has to limit his activities to slow down the global warming process D.human civilization will continue to develop in spite of the changes of natureWhen global warming finally came, it stuck with a vengeance (异乎寻常的). 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 planes 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 environment 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—during which agriculture writing, cities and most other features of civilization appeared—is 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—even without the influence of human activity.41. Farming emerged as a survival strategy because man had been obliged( ).42. Earth scientists have come to understand that climate( ).43. Scientists believe that human evolution( ).44. Evidence of past climatic changes indicates that( ).45. The message the author wishes to convey in the passage is that( ).