课时作业(二十二) ⅰ.单项填空 1. (2013•合肥模拟)global warming ________ an average increase in the earth’s temperature that， in turn， leads to climate change. a. appeals to b. occurs to c. refers to d. belongs to 答案 c 解析 考查动词短语辨析。句意：全球变暖指的是地球平均温度增长，继而导致气候变化。appeal to“吸引”； occur to“想起”； refer to“提到；意指”； belong to“属于”。 2. reduced rainfall has affected large areas of africa for years， ____
