有劳那位大家帮小女写一篇关于"how to face the natural disaster"急用,谢啦
题目
有劳那位大家帮小女写一篇关于"how to face the natural disaster"急用,谢啦
答案
Global warming will lead to climate disasters,caused by various natural and manmade disasters.Such as:With increasing global warming,it's survival of the nutritional content of crops may be less and less.This is the comprehensive study of the atmospheric concentration of carbon dioxide increased the impact of the crops after the conclusion drawn.
A new Britain,"New Scientist" magazine reported that the University of Texas Southwestern researchers in this analysis showed that global warming will not only lead to floods and drought,so that crop production,the crop will survive because of the atmosphere The concentration of carbon dioxide have increased less protein.The researchers said that this result is worrying,because many people in poor countries have access to about half of the proteins dependent on these crops.
Abnormal weather this winter,has aroused unprecedented attention of world public opinion.This allows people to suddenly feel that the abnormal climate appeared frequently,so that humanity is in danger,thought that human beings can control the start Zuolibuan nature.Climate warming is what brought the scourge to mankind » First,water supply and demand conflicts intensified:global warming lead to changes in precipitation,the global water supply and demand contradictions even more obvious.Second,the increasing threat of natural disasters:tropical storm and hurricane frequency and intensity are likely to increase.Third,the fate of island worrying:Earth polarized melting snow lead to rising sea levels,many islands will be inundated,some island nations may no longer exist.Fourth,the summer heat wave frequency are:report showed that,if the average global temperature rose 3 degrees Celsius,the heat wave hit North America the number will increase 3-8 times.Fifth,the biological chain disruption:biological species will lead to changes in the scope of the resettlement areas and the biological chain to move out of chaos.6 infectious disease is rampant:through many insects,food and water-borne infectious diseases will expand the scope of the spread.Seventh,the economic development of Mengyin Ying:According to statistics,the 1990s,the major meteorological disasters caused by an average annual economic losses from the 1960s,the 4 billion U.S.dollars surged to 29 billion U.S.dollars,human suffering from global warming problem,which has become Mankind must face the reality.
Caused climate warming is the cause of human progress,science and technology development,the improvement of living standards,said it will be difficult to understand some people.With the scientific understanding of global warming on the deepening of the human awareness of global warming is gradually strengthened,global warming has seriously affected the quality of human life and threaten human security.We can not take it lightly,the insensitive.Whether for themselves or for the sake of future generations,we should actively deal with and seek effective solutions.The ancients are "first world to enjoy music,after the world to show concern and worry" of the mind,let alone the 21st century people.
Although the human warming can not be around,but it is,after all,caused by human activities.If mankind on earth are greatly reduce the emission of pollutants,and can use various ways to reduce energy consumption,promote new energy technologies,can affect the entire planet in some areas and changes to reduce the occurrence of disastrous weather.Controlling greenhouse gas emissions can actually start from a number of minor issues,such as travel by plane at least in the newspapers,while driving without non-essential things,and so on.Greenhouse gas emission reduction,and everyone on the planet's environment,these minor issues may be small,but we all should "not small and not good for."
Deal with global warming,the development of mankind,to get early warning of climate catastrophe Huaxianweiyi » There is no doubt,only to change development concept and learn to coexist with nature and the market,and safeguard the Earth for the survival of mankind to achieve sustainable development,climate risk of early warning can be reversed.As the survival of mankind on earth,should assume the responsibility of safeguarding the Earth home.Faced with global warming caused by the environmental situation,China experts and scholars at all levels of government with great concern and attention,from different angles by various response measures,in order to solve the problem of global warming find ways.However,China's environmental protection a long way to go,we should be building and harmonic society,to achieve sustainable development of the high level of awareness of the problem and seek a better solution to deal with climate change issues to promote China's sustainable development to become one of the engines.
举一反三
已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
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