2014职称英语卫生类辅导：假设法句型精讲6

　　If only + V-ed

　　结构┱If only+过去式/过去完成式

　　说明┱此句型意为“要是…就好了。”用过去式，表示与现在事实相反;若用，则表示与过去事实相反。

　　If only I had a rich father. 要是我有个有钱的爸爸就好了。

　　If only he had been here. 要是他当时在这儿就好了。

　　If only I had another chance. 要是我再有一次机会就好了。

　　... as if/as though ...

　　结构┱…as if/as though…现在式/过去式/过去完成式

　　说明┱此句型意为“彷佛…;好像…一样”。as if，as though 是，引导。中，可用现在式，以表示事实;也可用过去式或，分别表示与现在或过去事实相反的。

　　He speaks like that as if he doesn’t want to attend the meeting.他那样说话，似乎不想参加会议。

　　He walks as if he is drunk. 他走起路来好像他真的醉了。

　　He felt as if he almost wished to kill them. 他感觉彷佛几乎要杀掉他们。

　　The baby opened the book as if he were able to read. 这个婴儿打开书本彷佛他会念书。

　　The nurse attends on the patient as if he were her father.

　　这护士照顾这位病人彷佛在照顾她爸爸似的。

　　He ran into the room as if he had seen something terrible.

　　他跑进屋子，彷佛他看到什么可怕的东西。

　　She looks as if nothing had happened to her. 她当时看起来好像什么事都没发生似的。

　　It seems/looks as if ...

　　结构┱It seems/looks as if…

　　说明┱此句型意为“似乎…”。本句型中的 as if 可用以表示事实，或。

　　It looks as if it is going to rain. 好像要下雨了。

　　It seems as if he knows everything. 他似乎是个万事通。

　　It seems as if he knew everything, but in reality, he is as stupid as can be.

　　他似乎是个万事通。其实他是再愚蠢不过了。

　　It looks as if she had just come back from outer space.

　　她看起来彷佛刚从外层空间回来似的。

　　It seemed as if he had finished the work. 他似乎已经完成了这个工作。

　　It seemed as if he would never finish the work. 他似乎永远完成不了这个工作。