北京高中英語資料網(wǎng)：高中英語重要語法

2016-07-15 11:45:45 　來源：網(wǎng)絡整理

　　高中英語對同學們的聽說讀寫能力提出了更高的要求，更注重對同學們能力的培養(yǎng)。同學們要想學好高中英語，一定要打好基礎，制定學習計劃，找出學習難點，及時復習，多加訓練。高中英語中有很多重點語法需要同學們謹記，下面北京高中英語資料網(wǎng)為同學們整理了高中英語重要語法，希望給同學們帶來一定的幫助。

北京高中英語資料網(wǎng)

　　北京高中英語資料網(wǎng)：高中英語重要語法

　　虛擬語氣在各種從句的應用

　　主語從句的虛擬

　　1. It is + adj. + that sb. (should) do

　　常見的形容詞有：necessary, important, strange, natural

　　It's important that he take my advice.

　　2. It is + n. + that sb. (should) do

　　常見的名詞有：a pity, a shame, no wonder, one's wish

　　It's a pity that he be so silly.

　　3. It is + done + that sb. (should) do

　　常見的過去分詞有：suggested, advised, demanded, requested, required, asked, ordered,

　　proposed, decided, desired, insisted等。

　　It's requested that she go home as soon as possible.賓語從句的虛擬

　　1. 表命令，表建議，表要求的動詞，后接賓語從句虛擬。虛擬的構(gòu)成為(should) do。

　　I advise that he stay at home.

　　2. wish后接從句，虛擬的構(gòu)成是往過去推一個時態(tài)。

　　I wish I had watched the football match last night.

　　注意以下幾組詞或短語用于虛擬語氣中。

　　1. as if, as though

　　He speaks English as if he were a native speaker.

　　2. otherwise, but, even though

　　He was ill. Otherwise he would have been there.

　　3. with, without, but for

　　Without your help, I would have died two years ago.

　　But for your help, I would have died two years ago.

　　4. would rather I'd rather you told me yourself.

　　5. It's time that

　　It's time that you went to bed.

　　It's time that you should go to bed.

　　表語從句中的虛擬

　　在表語從句中，表示間接的命令，要求、請求、建議、決定等，主句中的主語通常是suggestion, proposal, request, orders, idea等。從句謂語形式是"(should)+動詞原形"。如：

　　His suggestion is that we (should) leave at once.

　　名詞從句部分：

　　1. that不可省略的情況

　　2. that引導同位語從句和that引導定語從句的區(qū)別：同位語從句中的that是連詞，不做成分，只連接主從句，不能省略;定語從句中的that要代替先行詞在從句中做主語、賓語或者表語，并且做賓語時可以省略。從語義上看，同位語從句是對前面名詞的解釋、說明或內(nèi)容;而定語從句時對前面名詞的限定。

　　We should consider the students’request that the school library provide more books on

　　popular science. (that引導同位語從句)

　　The only hope that he expressed was that they would do what they could to help the people

　　in disaster areas. (that引導定語從句)

　　3. 要根據(jù)句子結(jié)構(gòu)尤其是謂語動詞判斷從句的類型：

　　What is known to us all is that the 2008 Olympic Games took place in Beijing.

　　本句含有一個主語從句和一個表語從句，主句的動詞為is。

　　It is known to us all that the 2008 Olympic Games took place in Beijing.

　　本句含有一個主語從句，主句的動詞為is known to。

　　As is known to us all, the 2008 Olympic Games took place in Beijing.

　　本句含有一個定語從句，主句的動詞為took place，as引導非限制性定語從句。

　　4. 名詞性從句的語序和語態(tài)。