Until the current warming trend exceeds the range of normal climatic fluctuation

游客2024-01-10  17

问题 Until the current warming trend exceeds the range of normal climatic fluctuations, there will be, among scientists, considerable ____ the possibility that increasing levels of atmospheric CO2 can cause long-term warming effects.

选项 A、interest in
B、uncertainty about
C、enthusiasm for
D、worry about
E、experimentation on

答案 B

解析 - 方程等号:Until直到…(相当于before),时间对比,反义重复。
- 强词和对应:当下变暖趋势超过了正常气候波动范围,空格体现之前科学家对大气二氧化碳增加导致长时间变暖效果的可能性(possibility)的态度。warming trend和warming effects同义重复,根据时间对比,空格填入一个负向词。interest in对…感兴趣,uncertaintyabout对…不确定,enthusiasm for对…乐观,worry about对…担忧,experimentation on在…上做实验。如果选D,那么句意就是在温室效应发生之前,科学家很担忧,发生后,他们不担忧。这明显不合逻辑,排除D选项,答案选B。
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