强调句 强调句及Itis.doc

强调句强调句及Itis

强调句及It is ... that/since/before等句型归纳
1. 为了突出或强调句中的某一成分以加强语气, 英语中通常用“It is + 被强调成分+ that/who”结构,这一结构叫作强调结构。该结构中的 It •是无人称主语, 没有词汇意义,仅起到改变句子结构,使某一成分受到强调的作用。如被强调的是物,用 that; 如被强调的是人, 用 who, 也可用 that。
••••强调结构中被强调的成分通常是句中的主语、宾语、地点状语或时间状语。例如下面一句, 我们可分别对其不同成分进行强调:
John wore a white suit at the dance last night.
was John that/who wore a white suit at the dance last night.(强调主语)
2. It was a white suit that John wore at the dance last night. (强调宾语)
3. It was at the dance that John wore a white suit last night. (强调地点状语)
4. It was last night that John wore a white suit at the dance.(强调时间状语)
••••强调结构亦可用来强调某些状语从句:
It was because he was ill that he didn’e to school yesterday.(强调 because 引导的原因状语从句)
It was only when the war was over in 1949 that he was able to get back home.
(强调when 引导的时间状语从句)
It was not until his father came back that he went to bed. (强调 until引导的时间状语从句) ••••现谈谈强调结构中值得注意的几个问题:
••••一. 强调结构中的时态问题
••••如果被强调的成分,原句谓语动词是一般现在时或一般将来时,强调结构用 It is...that/who; 如果原句的谓语动词是过去时态,则用• It was...that/who; 有时还可用 be 的其它形式。例如:
It is the people who/that are really powerful.
It was in the street that I met your brother yesterday.
It must be your mother who you are thinking of.
••••二. 强调结构中代词的格和谓语人称与数的问题
••••如果被强调的部分是原句的主语, that/who 后面的谓语在人称和数上均应与原句主语一致, 不与 it 一致。例如:
It is you that/who are to blame.
It is I that am mken.
••••一般说来, 强调主格人称代词就用主格, 强调宾格人称代词就用宾格,