第二步：語(yǔ)法精講
　　1. 簡(jiǎn)介
　　(1) 一般情況用It is (was)…that (who)…，指人時(shí)，用who；指物時(shí)，用that。
　　我們分別可以強(qiáng)調(diào)主語(yǔ)、賓語(yǔ)、表語(yǔ)、時(shí)間狀語(yǔ)和地點(diǎn)狀語(yǔ)等。如：
　　He read three books in the library yesterday.（正常句子）
　　It was he who read three books in the library yesterday.（強(qiáng)調(diào)主語(yǔ)）
　　It was three books that he read in the library yesterday.（強(qiáng)調(diào)賓語(yǔ)）
　　It was in the library that he read three books yesterday.（強(qiáng)調(diào)地點(diǎn)狀語(yǔ)）
　　(2) 強(qiáng)調(diào)狀語(yǔ)或定語(yǔ)時(shí)，只用that，不用when、where，如：
　　It is at 5 o’clock that the train will arrive.
　　(3) 被強(qiáng)調(diào)的部分是主語(yǔ)時(shí)，注意句子的謂語(yǔ)動(dòng)詞和被強(qiáng)調(diào)的主語(yǔ)保持一致。如：
　　It is he who is late.
　　It is they who were late.
　　(4) 一般疑問(wèn)句的強(qiáng)調(diào)句為“Is (was) it + that…?”；特殊疑問(wèn)句為：“特殊疑問(wèn)詞+ is (was) +it +that…?”結(jié)構(gòu)。如：
　　Was it ten years ago that his father died?（他的父親是十年前去世的嗎？）
　　When is it that you will set off?（你到底什么時(shí)候出發(fā)？）
　　(5)“not…until…”句型的強(qiáng)調(diào)結(jié)構(gòu)為“It is not until…that…”應(yīng)注意把否定詞not轉(zhuǎn)移到until前面。如：
　　I didn’t go home until the rain stopped.（直到雨停了我才回家）。
　　強(qiáng)調(diào)句為：It was not until the rain stopped that I went home.
　　I didn’t know the news until yesterday.（直到昨天我才知道那個(gè)消息）
　　強(qiáng)調(diào)句為：It was not until yesterday that I knew the news.

　　2. 四級(jí)必考套句學(xué)習(xí)
　　(1) It is the responsibility of to do sth.
　　【分析】注意，從形式上看該句子很像強(qiáng)調(diào)句型，而實(shí)際上并非如此，因?yàn)榫渲衖t是形式主語(yǔ)，動(dòng)詞不定式作實(shí)際主語(yǔ)。
　　It is the responsibility of every citizen in our society to do his utmost to protect the environment.
　　(2) It is the , I suppose, that have\has given rise to .
　　【分析】該強(qiáng)調(diào)句型強(qiáng)調(diào)句子主語(yǔ)，I suppose作為插入語(yǔ)。這是一個(gè)很好掌握的四級(jí)長(zhǎng)句，在作文中需要分析原因時(shí)，可以用它闡述自己的看法。
　　It is the tighter job market, I suppose, that has given rise to the increase in the number of unemployed college students in China.
　　(3) It is only when that .
　　【分析】強(qiáng)調(diào)句型強(qiáng)調(diào)when引導(dǎo)時(shí)間從句。
　　It is only when you nearly lose someone that you become fully conscious of how much you value him.

　　點(diǎn)擊進(jìn)入：英語(yǔ)四級(jí)網(wǎng)校，免費(fèi)試聽(tīng)大學(xué)英語(yǔ)四級(jí)高清課程>>

　　復(fù)習(xí)計(jì)劃：大學(xué)英語(yǔ)四級(jí)寫(xiě)作周計(jì)劃｜完形填空通關(guān)周計(jì)劃匯總
　　四級(jí)詞匯：10天攻克大學(xué)英語(yǔ)四級(jí)核心詞匯匯總
　　作文指導(dǎo)：大學(xué)英語(yǔ)四級(jí)寫(xiě)作模板庫(kù)：作文類型模板匯總