问题
选择题
After reading for an hour, you'd better_______ the green trees for a minute or two.
A．look out of
B．look out at
C．look out from
D．look for at
答案
B
题目分析：句意：读书过了一个小时后，你最好向外看一会儿绿树。A. look out of 从……向外看； B. look out at 向外眺望； 选项CD搭配不对；根据句意故选B。