问题
单项选择题
Desert plants ______ two categories according to the way they deal with the problem of surviving drought.
A. break down
B. fall into
C. differ in
D. refer to
答案
参考答案：B
解析： 从所给信息看，句子大意是“沙漠植物根据其对抗干旱的能力分为两类”。四个选项中，只有fall into用于此意义。如：The poem falls into four cantos. 这首诗可分为四章。Those problems fall naturally into several main classes. 那些问题很自然地分为几大类。break down意为“毁掉，制服，压倒”；differ in意为“不同”；refer to意为“指，谈到，参照”。