英语语法专题系列 第14讲：It强调句及相关考点

在英语中，强调句型是一种常用工具，用于突出句子中的某一成分。其基本结构为"It is / was + 被强调部分 + that (who / whom)…"。被强调的部分可以是主语、宾语、表语或状语，例如：

原句：Last night I saw a film in the Youth Palace.

强调主语：It was I that / who saw a film in the Youth Palace last night.

强调宾语：It was a film that I saw in the Youth Palace last night.

强调地点：It was in the Youth Palace that I saw a film last night.

强调时间：It was last night that I saw a film in the Youth Palace.

使用强调句时需要注意以下几点：

强调主语时，that后的谓语动词与被强调者的人称和数保持一致。
即使强调复数主语，主句的系动词仍为单数。
强调时间、地点等状语时，只能用that，不用when, where等。
not…until…结构强调时间时，变为"It is (was) not until ...that..."。
根据原句时态，使用is或was，一般疑问句保持原句语序。
特殊疑问句仅疑问词可强调，如"Where was it that you were born?"
区分强调句和名词从句，如"It was the rule of the school that the pupils should wear their school uniforms."
形式主语的句型"It is clear that..."与强调句型需区分。
强调句可作为宾语从句，如"He told me that it was because he was late for class that he was punished."
强调句型变体，如"It may be my bike that he is riding."
与疑问词结合，构成特殊疑问句或感叹句。
被强调的名词可带有定语从句，如"Was it Bill, who plays football well, that helped the blind man cross the road?"

掌握这些规则，将帮助你更准确地使用It强调句来突出句子的重点。