A Sunshade for the Planet Even with the best will1 in the world,reducing our carbon emissions is not going to prevent global warming.It has become clear that even if we take the most strong measures to control emissions,the uncertainties in our climate models still leaye open the possibility of extreme warming and rises in sea level.At the same time,resistance by governments and special interest groups makes it quite possible that the actions suggested by climate scientists might not be implemented soon enough. Basically the idea is to apply sunscreen to the whole planet.One astronomer has come up with a radical plan to cool Earth;launch trillions of feather-light discs into space,where they would form a vast cloud that would block the suns rays.Its controversial,but recent studies suggest there are ways to deflect just enough of the sunlight reaching the Earths surface to counteract the warming produced by the greenhouse effect.Global climate models show that blocking just 1.8 per cent of the incident energy in the suns rays would cancel out the warming effects produced by a doubling of greenhouse gases in the atmosphere. That could be crucial,because even the most severe emissions-control measures being proposed would leave us with a doubling of carbon dioxide by the end of this century,and that would last for at least a century more. A strong measures have been taken by the government to prevent global warming. C despite the difficulty,scientists have some options to prevent global warming. 2. Scientists resist talking about their options because they dont want people to B feel their efforts are useless. D see the real problem. A Methadone is an effective way to treat a hard heroin addict. C Hospitalization together with methadone can work effectively with a heroin addict. 4. What is Stephen Schneiders idea of preventing global warming? B To increase the sunlight reaching the Earth. D To decrease greenhouse gases. A It deflects sunlight reaching the Earth to counteract the warming. C It is a controversial method. 答案: 1. C 2. C 3. A 4. C 5. D
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仁爱版九年级上Unit3《 Topic1 Section B》表格式教案
仁爱版英语八上《Topic 2 I must ask him to give up smoking》word教案4篇
仁爱版七上Unit3《Topic 2 What does your mother do》word教案C
仁爱版七上Unit4《Topic 1 What can I do for you》word教案C
仁爱版九年级上Unit3《 Topic 1 Section A》表格式教案
仁爱版七上Unit1《Topic 1 Nice to meet you!》word教案D
仁爱版七上Unit1《Topic 2 Where are you from》word教案C
仁爱版七上Unit1《Topic 2 Where are you from》word教案
仁爱版七上Unit1《Topic 3 What class are you in》word教案
仁爱版英语八上《Topic 2 I am sure there are no UFOs》word教案4篇
仁爱版英语八上《Topic 1 You’d better go to see a doctor》word教案5篇
仁爱版七上Unit4《Topic 1 What can I do for you》word教案B1
仁爱版七上Unit1《Topic 2 Where are you from》word教案A
仁爱版七上Unit1《Topic 2 Where are you from》word教案设计
仁爱版七上Unit4《Topic 2 Would you like to go for a picnic》word教案
仁爱版七上Unit1《Topic 1 Nice to meet you》word教案C
仁爱版七上Unit3《Topic 1 Do you have a pen pal》word教案
仁爱版英语八上《Topic 1 What hobbies did you use to have》word教案5篇
仁爱版七上Unit3《Topic 2 What does your mother do》word教案A
仁爱版七上Unit2《Topic 3 Whose jacket is this》word教案A
仁爱版七上Unit3《Topic 2 What does your mother》word教案A
仁爱版英语九上《Topic 3 Could you give us some advice on how to leran English well》word学案
仁爱版七上Unit1《Topic 1 Nice to meet you》word教案A
仁爱版七上Unit2《Topic 3 Whose jacket is this》word教案C
仁爱版七上Unit4《Topic 1 What can I do for you》word教案A
仁爱版七上Unit1《Topic 1 Nice to meet you》word教案
仁爱版七上Unit1《Topic 3 What class are you in》word教案C
仁爱版七上Unit3《Topic 1 Do you have a pen pal》word教案C
仁爱版七上Unit4《Topic 1 What can I do for you》word教案B
仁爱版七上Unit1《Topic 2 Where are you from》word教案D