单选题 Global Warming

Few people now question the reality of global warming and its effects on the world's climate. Many scientists (51) the blame for reeent natural disasters on the increase (52) the world's temperatures and are convinced that, more than (53) before, the Earth is at (54) from the forces of the wind, rain and sun. (55) to them, global warming is making extreme weather events, (56) as hurricanes and droughts, even more (57) and causing sea levels all around the world to (58)
Environmental groups are putting (59) on governments to take action to reduce the (60) of carbon dioxide which is given (61) by factories and power plants, thus attacking the problem at its source. They are in (62) of more money being spent on research into solar, wind and wave energy devices, which could then replace existing power (63)
Some scientists, (64) , believe that even if we stopped releasing carbon dioxide and other gases into the atmosphere tomorrow, we would have to wait (65) hundred years to notice the results. Global warming, it seems, is here to stay.

【正确答案】 A

【答案解析】介词搭配，文中“the world’s temperatures”前需要补充一个介词，表达在全球范围内气温的上升，因此应该在A和B之间选择。而at后面只可以跟某个小地点，根据文义，只有in才是正确答案。

【正确答案】 B

【答案解析】根据句意，作者举例子是按照递进的顺序，从飓风、干旱到排在后面的是更加严重的问题。strict表示“严格的”，strong表示“强烈的”，heavy表示“沉重的，巨大的”，只有severe 表示“严峻的，严重的”，因此B是正确答案。

【正确答案】 C

【答案解析】根据句意，导致世界各地的海平面上升，所以在A和C之间选择。raise表示“举起，抬起，唤起”，有主动意味，rise表示客观上的上升，因此是正确答案。

【正确答案】 A

【答案解析】固定搭配，give off表示“排放(气体、液体、光)等”，文中表达的是排放二氧化碳气体，显然选A。而give away表示“泄露，分发”，give up表示“放弃”，give over表示“停止，交出”。

【正确答案】 D

【答案解析】联系上下文，上文说的是很多科学家的想法，下文转而言另外还有一些科学家的想法，有转折之意，且空格在两句未完的话之间，因此惯用法选择however。