问题
单项选择题
Agriculture today has had the luxury of being able to pollute and alter the landscape first and worry about the consequences later.
A．transform
B．reform
C．perform
D．conform
答案
参考答案：A
解析：[分析] 动词辨析 alter改变；例：The city centre has altered beyond recognition．市中心已变得认不出来了。而A．transform转换，改变，改造；B．reform改革，革新；C．perform履行，执行，表演； D．conform使一致，使遵守。所以答案为A。