3. 根据语境猜测黑体短语的含义。 (1)This city has a population of more than 1, 000, 000. ( ) (2)I couldn’t think of the name of that man anyhow. ( ) (3)A baby’s need for food can vary from day to day. 　 ( ) (4)We must be on guard all the time in an emergency. 　 ( ) (5)He held up his hand in amazement. 　 ( )

超过

想起

从……到……之间变化

保持警惕

举起