【简介】感谢网友“雕龙文库”参与投稿，这里小编给大家分享一些，方便大家学习。
1 ___________，but I was so focused on my experiment that I forgot.
2.These people did nothing _______________,which causes a lot of concern.
3.To such an extent _____________that people all stayed home to keep warm.
4._________________，I will treat you to KTV this afternoon.
答案解析:
1.答案:I should have told him about this/I ought to have informed him of this
详解:
考查虚拟语气:此处but引导的虚拟语气属暗含的虚拟语气，前一部分是虚拟语气，后一部分是陈述语气。由于后部分是过去式的陈述句，故前半句的虚拟语气用完成时态，表示过去未做之事，用should/ought to have+过去分词结构。
考查固定搭配:将告诉的表达是tell sb. about sth.或inform sb.of sth.。
2.答案:except/but hang around on/in the street all day long
详解:
考查介词:除了的表达是except或but,do nothing but/except后面用动词原形。But用于nobody，nothing,no one,all等词后面表示除以外。
考查词组:闲逛译作hang around;整日的表达是all day long。
3.答案:did the temperature in Xian go down
详解:
考查倒装:当so和such及其介词短语位于句首时，主句需要部分倒装，把助动词移至主语前。
考查词组:降低的表达为go down或decrease。
考查时态一致:主从句的时态要一致，从句用过去时，故主句也用过去时。
4.答案:Now that you are so passionate fo singing
详解:
考查原因状语从句:既然用now that或since表达，引导原因状语从句。
考查固定搭配:对有激情的表达是be passionate for或have passion for。
考查指示代词:so用于形容词前，such用于名词前。
1 ___________，but I was so focused on my experiment that I forgot.
2.These people did nothing _______________,which causes a lot of concern.
3.To such an extent _____________that people all stayed home to keep warm.
4._________________，I will treat you to KTV this afternoon.
答案解析:
1.答案:I should have told him about this/I ought to have informed him of this
详解:
考查虚拟语气:此处but引导的虚拟语气属暗含的虚拟语气，前一部分是虚拟语气，后一部分是陈述语气。由于后部分是过去式的陈述句，故前半句的虚拟语气用完成时态，表示过去未做之事，用should/ought to have+过去分词结构。
考查固定搭配:将告诉的表达是tell sb. about sth.或inform sb.of sth.。
2.答案:except/but hang around on/in the street all day long
详解:
考查介词:除了的表达是except或but,do nothing but/except后面用动词原形。But用于nobody，nothing,no one,all等词后面表示除以外。
考查词组:闲逛译作hang around;整日的表达是all day long。
3.答案:did the temperature in Xian go down
详解:
考查倒装:当so和such及其介词短语位于句首时，主句需要部分倒装，把助动词移至主语前。
考查词组:降低的表达为go down或decrease。
考查时态一致:主从句的时态要一致，从句用过去时，故主句也用过去时。
4.答案:Now that you are so passionate fo singing
详解:
考查原因状语从句:既然用now that或since表达，引导原因状语从句。
考查固定搭配:对有激情的表达是be passionate for或have passion for。
考查指示代词:so用于形容词前，such用于名词前。
