2013 高考英语：（01）二轮语法学案（状语从句）（训练题配答案或解析）本单元的语法重点为状语从句状语从句可分为时间、地点、目的、原因、结果、行为方式、条件、让步、比较九种。引导这些状语从句的连词主要有： 状语从句 连 词时间状语从句after，as，as iong as，before，once，since，when，while，till，the moment地点状语从句where．wherever原因状语从句because，since，as，now that…条件状语从句if，unless，as long as，as far as，in ease，on condition that…让步状语从句as．though．although。no mailer．even if．even though．however．whatever…目的状语从句that．so that．in order that…方式状语从句as·JUSt as·as结果状语从句that．so that．so…that．such…that…比较状语从句as…as．not so…as．than．the more…the more,一状语从句使用时应注意以下几点：1．before 引导的从句常用句型： lt is long before…(过了好久才……）lt is not long before…(过了不久就……)2．till 与 until(till 一般不放在句首) (1)持续性动词(肯定式)+until(直到……为止) (2)瞬间动词(否定式)上 until(直到……才) (3)强调句型：It is not until…that…eg： I waited until(till)he had finished his work．我一直等到他完成工作。 FIe didn't go to bed until/till 1 came back．直到我回来．他才去睡觉。It Was not until l came back that hc went to bed．直到我回来．他才去睡觉。3．since 意为“自从……以来”。 since 一瞬间动词过去式(从该动作发生时算起) since-一持续性动词的过去式(从该动作结束时算起)eg： He has been working very hard since he entered the factory．自从他人厂以来一直努力工作。4．if 与 unless 都可引导条件状语从句．在许多情况下 unless 可以与．f…not 交换使用。但在下列情况下不可互换： (1)if not 引导非真实条件句。 (2)unless 从句中可用否定词．在．f…not 从句中一般不再用否定词。 eg：I’ll go unless no one else does．除非没有其他人去我才会去。5．在 so+adj/adv+that clause 中．当把 so+adj/adv．部分放在句首时．该句主句应为倒装语序。eg： So rapidly did 11c speak that we could hardly understand him clearly．他讲得太快．我们很...
