问题
选择题
You don’t have to _______ every new word in the dictionary while reading.
A．look for
B．look up
C．look at
D．look after
答案
答案：B
look for寻找;look up查阅,向上看;look at看;look after照顾,关心.句意:当读书时,你必须在词典中查阅每个新单词.结合语境可知选B.