”；as if/as though 意为“好像”
连接代词
who, whom, whose, what, which， ---ever等
在从句中作主语、宾语、表y, because, how,---ever等
在从句中作状语，表示时间、地点 、原因、方式等
1. The trouble is _t_h_a_t__there were not any trains at that time. 2. ___T_h_a_t___ he survived the accident is miracle.
7.The reason why she keeps running is _th__a_t_ she wants to lose weight.
代who, whom, whose, what, which / 副when, where, why, because, how 连that, whether, as if, as though
1. “as if/as though”好像，仿佛”，引导的表语从句常跟在系动词(如seem，
appear，look，taste，sound，feel，smell等)之后。有时用虚拟语气；
The thick smog covered the whole city.It was as if a great black blanket
三个易混的表语从句 ①This/That/It is why＋表语从句(表结果) ②This/That/It is because＋表语从句(表原因) ③The reason why...is that＋表语从句“……的原因是……”
1. Whoever is interested in showing his talent is to get an opportunity to show here. 2. Whether the students can benefit from the activities is what the teachers always take into consideration. 3. That students make progress day by day really counts
