判断题It is dangerous for people to live on the Earth if CO2 concentrations continue to rise.A对B错
判断题
It is dangerous for people to live on the Earth if CO2 concentrations continue to rise.
A
对
B
错
参考解析
解析：
该段录音中指出“最近趋势显示二氧化碳的排放量正在超过大自然的吸收能力”，过去几年空气中二氧化碳含量的增速突然上升到2.54 ppm或以上，这意味着自然系统减少碳排放量的能力正在减弱。可推测，如果二氧化碳浓度持续升高，居住在地球上将会是危险的。
【录音原文】
Recent trends suggest that carbon emissions are outpacing absorption. Over the past two decades, atmospheric C02 concentrations rose each year, on average, by 1.5 parts per million (ppm), but the last few years have seen unexplained and alarming jumps of up to 2.54 ppm and beyond. This suggests that the ability of the Earth’s natural systems to mitigate the rise in carbon emissions is weakening.
该段录音中指出“最近趋势显示二氧化碳的排放量正在超过大自然的吸收能力”，过去几年空气中二氧化碳含量的增速突然上升到2.54 ppm或以上，这意味着自然系统减少碳排放量的能力正在减弱。可推测，如果二氧化碳浓度持续升高，居住在地球上将会是危险的。
【录音原文】
Recent trends suggest that carbon emissions are outpacing absorption. Over the past two decades, atmospheric C02 concentrations rose each year, on average, by 1.5 parts per million (ppm), but the last few years have seen unexplained and alarming jumps of up to 2.54 ppm and beyond. This suggests that the ability of the Earth’s natural systems to mitigate the rise in carbon emissions is weakening.
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共用题干第二篇Human and the EarthIn terms of the evolution of life on Earth,human beings have just arrived.Despite their shori time on Earth,however,people have brought about enormous changes to the surface of the planet一changes far out of proportion to the interval of time they have occupied it.People have more control over their surroundings than any other species on Earth.With the combination of intelligence and manual skill(allowing us to make and use tools),people have found ways to use plant and animal resources,mineral ores,fuels,and many other materials and resources from the Earth.As the number of people on Earth increases,it becomes increasingly difficult for the population to survive on the resources of the land.The amount of land is limited.Although agricultural production can be increased by use of machinery such as tractors and the addition of fertilizer,the land ultimately can produce only so much food and no more.As the human population grows,people consume more.Clearly,some locations on Earth already have too many people;in many of these areas,future increases will surely bring about more poverty and suffering. Yet people in rich nations use proportionally far more of the available resources than people in poorer nations.As they consume these resources without restraint,they also waste large amounts of them.People are only a very small fraction of all the living things on the planet.Yet their numbers create a drain on resources that can't be renewed.For example,the amount of water on Earth is limited,this water is cleaned through natural processes.However,the natural processes for filtering water can clean only a certain amount of water by removing the pollution.Likewise,a limited amount of petroleum can be found under the Earth's surface.Petroleum is a valuable resource.Should people use it up to manufacture petrol for automobiles?As people work to control the planet and make life comfortable,are they using up resources that are needed for their survival?in terms of the evolution of life on Earth,the history of human beings is_______.A:very short B:very longC:as long as that of other animals D:as long as that of the Earth
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共用题干第二篇Human and the EarthIn terms of the evolution of life on Earth,human beings have just arrived.Despite their shori time on Earth,however,people have brought about enormous changes to the surface of the planet一changes far out of proportion to the interval of time they have occupied it.People have more control over their surroundings than any other species on Earth.With the combination of intelligence and manual skill(allowing us to make and use tools),people have found ways to use plant and animal resources,mineral ores,fuels,and many other materials and resources from the Earth.As the number of people on Earth increases,it becomes increasingly difficult for the population to survive on the resources of the land.The amount of land is limited.Although agricultural production can be increased by use of machinery such as tractors and the addition of fertilizer,the land ultimately can produce only so much food and no more.As the human population grows,people consume more.Clearly,some locations on Earth already have too many people;in many of these areas,future increases will surely bring about more poverty and suffering. Yet people in rich nations use proportionally far more of the available resources than people in poorer nations.As they consume these resources without restraint,they also waste large amounts of them.People are only a very small fraction of all the living things on the planet.Yet their numbers create a drain on resources that can't be renewed.For example,the amount of water on Earth is limited,this water is cleaned through natural processes.However,the natural processes for filtering water can clean only a certain amount of water by removing the pollution.Likewise,a limited amount of petroleum can be found under the Earth's surface.Petroleum is a valuable resource.Should people use it up to manufacture petrol for automobiles?As people work to control the planet and make life comfortable,are they using up resources that are needed for their survival?Who use more available resources according to the passage?A:Rich people on Earth. B:Poor people on Earth.C:People in developed countries. D:People in developing countries.
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单选题According to this passage, some people believe that eventually _____.Ahuman societies will be much more cooperativeBman will live in a highly organized worldCmachines will replace manDliving beings will disappear from Earth
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