摘要:重点句型 考点八 If only it could be just like last year. [基础过关]if only但愿,要是--就好了.其后一般用虚拟语气 If only I were a doctor. 这句话用的是一般过去时.因为原意是:我现在要是个医生就好了.与现在相对应的句子用一般过去时 If only I had said nothing. 而这句用的是过去完成时.原意为:我当时不说就好了.是与过去时态相对应的.故用过去完成时 If only my son didn't spend so much time before TV. 这句可以理解为一般现在时的虚拟语气.所以句子中使用了一般过去时态.原意为:要时我儿子不在电视前面呆那么长时间就好了 I wake up only if the alarm clock rings. 只有闹钟响了.我才会醒 [点拨]only if表示"只有.只要". 后接让步状语从句.主句采用倒装句式 Only if a teacher has given permission is a student allowed to enter this room. [典型例题] Look at the trouble I’m in! If only I your advice. A. followed B. would follow C. had followed D. should follow [答案]C 考查if only引导的从句 [点拨]if only引导的条件状语从句用虚拟语气 [实战演练]

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