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Ⅲ. 语法重点 学习not … until / till和复习句子的省略。特别要真正掌握not until型的强调表达和倒装表达。 【指点迷津】 not…until ( till ) 的四种句型 如果主句谓语动词是持续性动词，则主句常用肯定式，表示“直到……为止”，即：主句 ( 用肯定式 ) + until ( till ) 时间状语或状语从句。例如： I worked until ( till ) he came back . 我工作到他回来为止。 I watched TV until ( till ) 10 o\clock . 我看电视一直到10点钟。 如果主句的谓语动词是瞬间动词，则主句必须用否定式，译为“直到……才”，即：主句 ( 用否定式 ) + until ( till ) 时间状语或状语从句。例如： I didn\t go to bed until ( till ) he came back . 直到他回来我才睡觉。 I didn\t go to bed until ( till ) 10 o\clock last night . 昨晚我直到10点钟才睡觉。 注意：用在句首时，一般只用 until 而不能用 till。例如： Until I finished my homework , I didn\t go to bed . 直到做完家庭作业我才睡觉。 Not + until 时间状语或状语从句 + 助动词 ( 常用 did ) + 主语 + 动词原形 ( 注：not 放在句首，故用部分倒装 ) 译为：“直到……才”。可以简化成：Not until…did + 主语。例如： Not until I finished my homework did I go to bed last night . I didn\t go to bed until ( till ) 10 o\clock last night . 昨晚我直到10点钟才睡觉。 注意：用在句首时，一般只用 until 而不能用 till。例如： Until I finished my homework , I didn\t go to bed . 直到做完家庭作业我才睡觉。 Not + until 时间状语或状语从句 + 助动词 ( 常用 did ) + 主语 + 动词原形 ( 注：not 放在句首，故用部分倒装 ) 译为：“直到……才”。可以简化成：Not until…did + 主语。 Not until I finished my homework did I go to bed last night . 昨晚直到做完家庭作业我才睡觉。 Not until last week did he realize he was wrong . 直到上星期他才认识到他是错误的。 It was not + until 时间状语或状语从句 + that + 主句 ( 注：此句型实际上是强调 not until 状语或状语从句。同学们应该记住：无论是强调时间、地点或原因状语，一般只用 that。这一点与定语从句不同，且此句型是陈述句语序，不用倒装。 ) 可以简化成句型：It was not until… + that . 例如： It was not until I finished my homework that I went to bed . 是在做完作业之后我才去睡觉的。 It was not until last week that he realized he was wrong . 一直到上个星期他才认识到他是错误的。 【针对练习】 1 . It was not ____ she took off her glasses ____ I realized she was a famous film star . A . when ; that B . until ; that C . until ; when D . when ; then 2 . Not until the early years of 19th century ____ what heat is . A . man did know B . man knew C . didn\t man know D . did man know 3 . Not until I began to work ____ how much time I had wasted . A . didn\t I realize B . did I realize C . I didn\t realize D . I realized 4 . Not until all the fish died in the river _____ how serious the pollution was . A . did the villagers realize B . the villagers realized C . the villagers did realize D . didn\t the villagers realize (责任编辑：admin) |