问题
选择题
The conference was held to discuss the effect that tourism has ________ the wildlife in the area.
A．in
B．on
C．at
D．with
答案
答案：B
题目分析：考查固定词组。本题实际上考查的的have an effect on…对…有影响；本题是把the effect提前做完先行词，that指代先行词作为has的宾语。句意：会议被举行来讨论旅游业对这个地区野生动物的影响。故B正确。
点评：固定词组have an effect on…对…有影响；本题是把the effect提前做完先行词，that指代先行词作为has的宾语。