as if/through 引导表语从句时要注意语气.若与事实相符,要 用陈述语气。
若从句表示与现在事实相反,谓动用 一般过去式(be用w;ere)
与过去事实相反用had+done. .
考试中常考查这种虚拟语气,不考查陈述语气。
• Li Lei is now in a new jacket. He looks as if he were an American boy.
二、引导表语从句的连接词
由从属连词that 引导的表语从句
由从属连词whether,as if引导表语从句
由从属连词because,why引导表语从句
由连接代词Who, whom, whose, which, what 和连接副词where,how,why,when引导的表语从句
பைடு நூலகம்
(一)由从属连词 that 引导的表语从句
4. Every student is in the classroom. 5. Your homework is to recite "劝学". 6. Her job is selling computers
归纳: 上述例句的结构:主语 +系动词/be + 表语 句式
常见的连系动词有:be (am, is, are, was, were), become, look, sound, feel, taste (看、听、尝起来),seem,appear(似乎 、好像)等
•wh- 引导的主语从句+be+that 从句
What surprised me most was that all the pupils were unusually quiet.
•This / That + be +wh-疑问词引导的从句