上学期unit8gramma课件

as if 或 as though引导的从句须用虚拟时 与现在事实相反：did 与过去事实相反：had done 与将来事实相反：would/could/might do Eg She looks as if she were sick He looks as if nothing had happened He talks about the book as if he had written it 但如果as if / as though 引导的从句所表述，