摘要:12.关系代词who, that, which等在定语从句中作主语时.其谓语动词的数应该与句中先行词的数一致. 例如: I, who am only a common worker, will retire in two years. 只是个普通工人的我两年后就要退休了. [考点透视 考例精析] [考点] 倒装结构. [考例1] I failed in the final examination last term and only then the importance of studies. A.I realized B.I had realized C.had I realized D.did I realize [解析] D “only+状语 放在句首时.主句部分就要倒装.把助动词.情态动词或者be动词提前.因为这个句子是一般过去时.所以在主句前加上did.谓语动词要还原成原形. [拓展] 这种倒装句要特别注意助动词提前以后.后面的动词要用原形.而被加上的助动词要体现句子的时态.例如: Only in this way can we do the work well. (只有用这种方法.我们才能把工作做好.) Only after they came did we returned home. (只是等他们来到以后我们才回家.) [考点] 考查it的用法-强调结构. [考例2] Could it be in the room we had a talk last night you left your keys? A.in which, when B.which, when C.where, that D.where, when [解析] C 这是强调句的一般疑问句形式.被强调的部分为“in the room where we had a talk last night .其中where引导一个定语从句修饰room. [考点] 考查主谓一致. [考例3] Every possible means to prevent the air pollution, but the sky is still not clear. A.is used B.are used C.has been used D.have been used [解析] A 第二个句子的时态可以判断出第一句应该用一般现在时. [基础演练] 一.根据所给首字母或括号中的汉语意思填写句子空格中所缺的单词.

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