词变被动语态时,勿要掉“尾巴”。Р The children were taken good care of (by her).Р Your pronunciation and spelling should be paid attention to.Р ④情态动词和be going to、be to、be sure to、used to、have to、had better等结构变被动语态,只需将它们后面的动词原形变为be +过去分词。Р ⑤当句子的谓语为say、believe、expect、think、know、write、consider、report等时,被动语态有两种形式:(A)谓语动词用被动语态,动词不定式作主补。(B)用it作形式主语,真正的主语在后面用主语在后面用主语从句来表示。如:Р People say he is a smart boy.Р It is said that he is a smart boy.Р He is said to be a smart boy.Р Р People know paper was made in China first.Р It is known that paper was made in China first.Р Paper was known to be made in China first.Р 类似句型有:It is said / known / suggested / believed / hoped/ thought that …Р (2)不能用被动语态的几种情况。Р ①所有的不及物动词或不及物动词词组不能用于被动语态之中。Р ②表示状态的谓语动词,如:last、hold、benefit、contain、equal、fit、join、mean、cost、look like、consist to等。
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