题目

完型填空                      Influences(影响) of the weather   Different weather makes people feel different. It  1  health, intelligence(智力)and feelings.   2  August, it is very hot and wet in the southern part of the United States. People there often have heart trouble and other kinds of health problems during this  3  . In the northeast and middle west, it  4  very hot sometimes and very cold at other times. People in these states   5   more heart trouble after the 6 changes in February or March.    The weather can also affect intelligence. I近年来，随着全球气候变暖，我国部分地区的自然环境出现了一系列反常现象。回答下列各题。（1）下列现象中，与全球气候变暖有关的是（ ）①天山博格达峰雪线降低②东海出现南海的鱼种③华北地区树枝提前抽芽④灾害性天气出现频繁A.②③④B.①②③C.①③④D.①②④（2）导致全球变暖的原因很多，其中人为原因主要是（ ）①大量使用矿物燃料 ②工业生产排放大量的二氧化硫 ③毁坏热带雨林 ④气候冷暖的周期变化A.①④B.②③C.③④D.①③