引导让步状语从句的从属连词有although, though, as, while(虽然), even if/though(即使), whether or (不论/不管 还是 ) 以及 疑问词+ever 和 no matter+疑问词 等。如: Although/Though they are poor they are
1)though, although引导的让步状语从句,后面的从句不能有but,但是 though 和yet可连用。例如: Although it s raining, they are still working in the field.虽然在下雨,但他们仍在地里干活。 He is very ol
表示目的状语的从句可以由that, so that, in order that, lest, for fear that, in case等词引导。例如: You must speak louder so that /in order that you can be heard by all. 你必须大点声,别人就能听
1. allow (doing) sth 允许(做)某事。如: The facts allow no other explanation. 事实不允许有其他的解释。 We don t allow eating in the classrooms. (我们)不允许在教室吃饭。 注:有时用于被动语态。如: Dog