1. forever adv.永远
2．keen adj.渴望的；热切的；热心的
3．issue n．问题
4．consider v．认为
5．activity n．活动
6．ability n．能力；本领；技能
7．outdoor adj.户外的；用于户外的
8．upset v．使(某人)心烦意乱，使心情不好
9．course n．课程
[语境运用] 用所给词的适当形式填空。
1．The Burj AlArab Hotel, considered (consider) the first and only 7－star hotel in the world, was designed in the shape of a sail of 321 meters.
2．Education should adapt to the children's needs and abilities (ability)．
3．To help Tom improve his English, I recommend that he take some online courses (course)．
4．Many people went in for writing, music, dramas and similar activities (activity)．
5．In all the confusion, there's a serious risk that the main issues (issue)will be forgotten.
