新目标英语八年级上册第九单元短语prepare for an exam 准备考试 go to the doctor 去看医生have the flu 感冒go to the party 去参加聚会be available to do sth 有空做某事go bike riding 去骑自行车notuntil直到才hang out with sb 与某人闲逛catch you 再见study for a math test为数学考试而学习plan to do sth计划做某事be free to do sth 有空做某事look after 照看,照顾turn down 拒绝reply to 回复take a trip 去旅行help out 解决难题look forward to doing sth 盼望做某事go to the concert 去听音乐会so that为了,以便hear from sb 收到某人的信invite sb to sp 邀请某人去某地in the daytime 在白天