SAT语法巧夺虚拟语气之法-智课教育出国考试.pdf

智 课 网 S A T 备 考 资 料 SAT语法巧夺虚拟语气之法 智课教育出国考试 每年的SAT语法真题中的考点都会有一定的规律可寻 下面就为大 家介绍SAT语法巧夺虚拟语气之法 大家在备考SAT语法的过程中 可 以有针对性地去练习 SAT语法考试相对其他而言是具有一定的难度的 同学们怎么解答 才能获得SAT语法的高分呢 下面为大家讲解SAT语法巧夺虚拟语气之法 仅供大家参考 我们今天主要从以下两个方面来认识SAT中的虚拟语气 1 虚拟语气的形式 2 倒装虚拟 英语中的语气主要有以下三种 1 陈述语气 2 祈使语气 3 虚拟语气 简单来说 虚拟语气是相当于if条件句的内容不可能实现 或实现 的可能性很小的时候 要对if条件句和主句的动词形式进行适当变化 1 if 从句表达的意思和现在的情况相反或目前不可能实现 If I had time I would go now If 条件句 did 主句 would do 值得注意的是 be动词在虚拟语气中必须用were 不论其原来 的形式是is am 还是are If I were a bird I would fly 2 if 从句所表达的意见与过去事实相反 例句1 If I had married you you would have been the president If 条件句 had done 主句 would have done 例句2 If china had not implanted the policy of reform and opening to the outside in would not have been so prosperous 3 If条件句的内容与将来事实相反或将来实现的可能性很小 If I should were to win a lottery of 10 million dollars I would buy you a big house If 条件句 should were to 主句 would do 4 倒装虚拟 在if 条件句中含有should had were 时 常常会把if省去 并将shoud had were 放在句首 其余部分顺序不 变 这样就构成了文法上的 倒装虚拟句 这种句子出了形式不同外 和正常的虚拟句的功能是完全一样的 例句1 If I were you I would go 倒装虚拟句 Were I you I would go 例句2 If I should win a lottery I would take a vacation in Europe 倒装虚拟句 Should I win a lottery I would take a vacation in Europe 例句3 If you had come here earlier we would have finished the job now 倒装虚拟句 Had you come here earlier we would have finished the job now 例题1 If there had been a power failure the hospital will run on electricity from its own generator which can operate for 200 hours A If there had been B If there were C Had there been D Should there be E There had been 答案 D 分析 主句是对将来情况的虚拟 所以从句的形式应该是 if 主语 should 动词原形 选项中只有D选项是这种形式的倒装形式 例题2 He was convinced that if property taxes would have rose any higher he would have had to move a different area A if property taxes would have rose B if property taxes would rise C if property taxes had risen D had property taxes rose E were property taxes to rise 答案 C 分析 句中用的是would have had的形式 那么if条件句中的对 应形式应该是过去完成时的形式 所以选择C选项 例题3 By painting them this afternoon the walls would be completely dry by tomorrow evening A By painting them B If they would have been painted C Were they to be painted D After painting them E They would be pain