[解析]
(1)B.细节理解题.根据第二段"They took a 31.8% part together of the total global new leaf area between 2000 and 2017.China played a major role,2000年至2017年,它们共占全球新叶面积的31.8%.中国扮演了重要的角色,".可知中国新增的新叶面积最大.故选B.
(2)A.细节理解题.根据第三段"The greening over the last twenty years shows an increase in leaf area on plants and trees which is as large as the area of the entire Amazon rainforest过去20年的绿化表明,植物和树木的叶子面积增加了,相当于整个亚马孙雨林的面积".可知作者提到亚马孙雨林来显示这是多么伟大的成就.故选A.
(3)B.推理判断题.根据第二段"They took a 31.8% part together of the total global new leaf area between 2000 and 2017.China played a major role,adding 25% to this increase,and India added 6.8%,followed by Canada and Russia2000年至2017年,它们共占全球新叶面积的31.8%.中国扮演了主要的角色,增加了25%,印度增加了6.8%,加拿大和俄罗斯紧随其后".可知"全球约9%的绿化发生在中国和印度"这种说法是错误的.故选B.