句型14
unless…“除非,如果不……”(=if…not)
[例句]
I shall go tomorrow unless it rains. 如果不下雨,我明天去。
–Shall Tom go and play football?
–Not unless he has finished his homework. 除非他完成作业,否则不能出去。
I won’t go unless he comes to invite me himself.
除非他本人来邀请我,不然我是不会去的。
I won’t attend his birthday party unless invited (=unless I am invited). 除非被邀请,否则我不
去参加的生日晚会。