问题补充:
Our teacher told us to the new words in the dictionary if we didn’t know them.
A. look over
B. look after
C. look down
D. look up
答案:
A. look over
B. look after
C. look down
(答案→)D. look up
解析:look over检查,查看;look after照顾;look down俯视,向下看;look up仰望,查阅。句意:老师告诉我们,如果我们不明白这些新单词,就在词典中查阅他们。结合语境可知选D。