英語導讀1000句（二十九）
Section29 Global Warming
Some people say the earth is getting warmer.有人說地球正在變暖。
They blame something called greenhouse gases.人們把它歸結為溫室效應。
The greenhouse gasses destroy the higher atmosphere that keeps our planet from getting too hot.溫室效應破壞了高空大氣層，而高空大氣層可以保護地球以免過熱。
CFCs are the gases that cause one of the biggest problems in global warming.氟氯化碳是導致全球變暖的主要氣體。
CFCs destroy some of the ozone that is in the higher atmosphere.氟氯化碳破壞了高空的部分臭氧層。
The ozone layer helps us by filtering out some of the harmful ultraviolet rays from the sun.臭氧層過濾了陽光中的部分有害的紫外線。
These rays can cause skin cancer in humans.這些射線會使人致癌。
These rays can also help to heat up our planet.這些射線也會使我們的星球升溫。
Over the polar ice caps, we now have holes in the ozone layer.在兩極的冰川地帶，人們發現了臭氧層的破洞。
These, people believe, contribute to worldrsquo;s global warming.人們認為這些是因為地球變暖導致的。
One of the effects it could have is to speed up the melting of the polar ice caps.其影響之一，就是加速極地冰川的融化。
If these melt too quickly, the level of the sea will rise too fast for us to control it.如果這些冰川融化得太快，海平面將快速上升，讓人無法控制。
The effect of a rise in the height of the sea will be dramatic.海平面升高帶來的影響是悲劇性的。
Many of the worldrsquo;s major cities will be under sea water.世界上許多重要的城市將被淹沒在海水中。
So, global warming can be very dangerous to our future environment.因此，全球變暖對未來環境的影響將是十分危險的。
Section29 Global Warming
Some people say the earth is getting warmer.有人說地球正在變暖。
They blame something called greenhouse gases.人們把它歸結為溫室效應。
The greenhouse gasses destroy the higher atmosphere that keeps our planet from getting too hot.溫室效應破壞了高空大氣層，而高空大氣層可以保護地球以免過熱。
CFCs are the gases that cause one of the biggest problems in global warming.氟氯化碳是導致全球變暖的主要氣體。
CFCs destroy some of the ozone that is in the higher atmosphere.氟氯化碳破壞了高空的部分臭氧層。
The ozone layer helps us by filtering out some of the harmful ultraviolet rays from the sun.臭氧層過濾了陽光中的部分有害的紫外線。
These rays can cause skin cancer in humans.這些射線會使人致癌。
These rays can also help to heat up our planet.這些射線也會使我們的星球升溫。
Over the polar ice caps, we now have holes in the ozone layer.在兩極的冰川地帶，人們發現了臭氧層的破洞。
These, people believe, contribute to worldrsquo;s global warming.人們認為這些是因為地球變暖導致的。
One of the effects it could have is to speed up the melting of the polar ice caps.其影響之一，就是加速極地冰川的融化。
If these melt too quickly, the level of the sea will rise too fast for us to control it.如果這些冰川融化得太快，海平面將快速上升，讓人無法控制。
The effect of a rise in the height of the sea will be dramatic.海平面升高帶來的影響是悲劇性的。
Many of the worldrsquo;s major cities will be under sea water.世界上許多重要的城市將被淹沒在海水中。
So, global warming can be very dangerous to our future environment.因此，全球變暖對未來環境的影響將是十分危險的。
