翻译短文Many scientists say that the world is getting hotter and

翻译短文
Many scientists say that the world is getting hotter and hotter. If they are right, the ice at the North and South Pole will melt eventually. If this happens, the sea will 32 and may cover most 33 all of Singapore. This will force everybody to move to a 34 country.
We know that the sun 35 the earth. The heat from the sun hits the 36 ,and some of 37 goes back into the sky. However, factories and cars 38 a lot of carbon dioxide（二氧化碳）.When the gas rises into the sky, the heat from the sun can come 39 them but the heat from the ground cannot. It 40 near us in the sky and makes the 41 hotter and hotter every year.
Scientists call this the “greenhouse effect” because a greenhouse is a small glass 42 which is hot inside. It is used for 43 plants in cool countries. Many countries are 44 about the greenhouse effect. They are trying to stop factories and cars from sending 45 gases into the sky. Scientists are not sure when the world will get much hotter. Some people say that the greenhouse effect has 46 already and has begun to affect the world’s weather.
32. A. rise B. fall C. change D. disappear
33.A.and B. or C. but D. till
34.A.hotter B. larger C. safer D. farther
35.A.shines B. circles C. covers D. heats
36.A.ground B. sky C. mountain D. forest
37.A.them B. it C. those D. such
38.A.make B. spread C. produce D. form
39.A.through B. over C. into D. toward
40.A.hides B. continues C. follows D. stays
41.A.cloud B. air C. season D. temperature
42.A.building B. flat C. tool D. machine
43.A.putting B. storing C. cutting D. growing
44.A.excited B. disappointed C. worried D. pleased
45.A.dangerous B. harmful C. heavy D. useful
46.A.meant B. improved C. started D. stopped

许多科学家认为,全球气候正在变暖.若真如此,北极和南极的冰川最终将会融化.若这种情况真的发生了,海平面将会上升,新加坡大部分甚至整个国家都会成为一片汪洋.人类将被迫迁往更全的地方.
我们知道,地球沐浴着太阳的光芒.来自太阳的热量到达地球表面,部分热量可以反射出地球.然而,工厂和汽车却正在排放着大量的二氧化碳.当这些气体升到天空中时,从太阳的热量穿过它到达地面,但从地面反射出去的热量却被锁了起来,.这些未能反射出去的热量留在了大气中,使得我们周围的空气越来越热.
由于这种现象和一些寒带国家的那些内部气温较高、用于种植的温室的原理相似,故科学家称这种现象为“温室效应”.许多国家都很担心温室效应的影响.他们正试图着阻止那些工厂和汽车排放更多偶的温室气体.即使是科学家们也不知道,世界将在何时变得温暖好多.有人人为温室效应已经并且正在影响着全球的气候了.