語態是動詞的一種形式，它表示主語和謂語的關系。語態有兩種：主動語態和被動語態。如果主語是動作的執行者，或者是說動作是由主語完成的，要用主動語態；如果主語是動作的承受者，或者是說動作不是由主語而是由其他人完成的，則用被動語態。

　　被動語態考點聚焦

　　(一)被動語態的概念：
　　不知道或沒必要提到動作的執行者是誰時用被動語態。強調或突出動作的承受者常用被動語態（by短語有時可以省略）。

　　(二)被動語態的構成方式：
　　be + 過去分詞，口語只也有用get / become + 過去分詞表示。

　　(三)被動語態的基本用法：
　　(1)使用被動語態時應注意的幾個問題。
　　①主動變化被動時雙賓語的變化。看下列例句。
　　My friend gave me an interesting book on my birthday.
　　An interesting book was given to me(by my friend)on my birthday.
　　I was given an interesting book (by my friend)on my birthday.
　　②主動變被動時，賓補成主補(位置不變)；(作補語的)不定式前需加to。
　　The boss made him work all day long.
　　He was made to work all day long(by the boss)
　　③短語動詞變被動語態時，勿要掉“尾巴”。
　　The children were taken good care of (by her).
　　Your pronunciation and spelling should be paid attention to.
　　④情態動詞和be going to、be to、be sure to、used to、have to、had better等結構變被動語態，只需將它們后面的動詞原形變為be +過去分詞。
　　⑤當句子的謂語為say、believe、expect、think、know、write、consider、report等時，被動語態有兩種形式：(A)謂語動詞用被動語態，動詞不定式作主補。(B)用it作形式主語，真正的主語在后面用主語在后面用主語從句來表示。如：
　　People say he is a smart boy.
　　It is said that he is a smart boy.
　　He is said to be a smart boy.
　　People know paper was made in China first.
　　It is known that paper was made in China first.
　　Paper was known to be made in China first.
　　類似句型有:It is said / known / suggested / believed / hoped/ thought that …