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If only + V-ed

結(jié)構(gòu)︰If only+過去式/過去完成式

說明︰此句型意為“要是…就好了。”用過去式，表示與現(xiàn)在事實相反;若用，則表示與過去事實相反。

If only I had a rich father. 要是我有個有錢的爸爸就好了。

If only he had been here. 要是他當時在這兒就好了。

If only I had another chance. 要是我再有一次機會就好了。

... as if/as though ...

結(jié)構(gòu)︰…as if/as though…現(xiàn)在式/過去式/過去完成式

說明︰此句型意為“彷佛…;好像…一樣”。as if，as though 是，引導。中，可用現(xiàn)在式，以表示事實;也可用過去式或，分別表示與現(xiàn)在或過去事實相反的。

He speaks like that as if he doesn’t want to attend the meeting.他那樣說話，似乎不想?yún)⒓訒�議。

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

He felt as if he almost wished to kill them. 他感覺彷佛幾乎要殺掉他們。

The baby opened the book as if he were able to read. 這個嬰兒打開書本彷佛他會念書。

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

這護士照顧這位病人彷佛在照顧她爸爸似的。

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

他跑進屋子，彷佛他看到什么可怕的東西。

She looks as if nothing had happened to her. 她當時看起來好像什么事都沒發(fā)生似的。

It seems/looks as if ...

結(jié)構(gòu)︰It seems/looks as if…

說明︰此句型意為“似乎…”。本句型中的 as if 可用以表示事實，或。

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

It seems as if he knows everything. 他似乎是個萬事通。

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

他似乎是個萬事通。其實他是再愚蠢不過了。

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

她看起來彷佛剛從外層空間回來似的。

It seemed as if he had finished the work. 他似乎已經(jīng)完成了這個工作。

It seemed as if he would never finish the work. 他似乎永遠完成不了這個工作。