被动形式表示主动意义
2007-01-01 00:00
非谓语动词
5.9 非谓语动词 在句子中充当除谓语以外的句子成分的动词形式叫做非谓语动词。非谓语动词分为三种形式:不定式,动名词,和分词(分词包括现在分词和过去分词)。 1)不定式 时态\语态 主动 被动 一般式 …...
时态一致
11.27 时态一致 1) 如果从句所叙述的为真理或不变的事实,则永远用现在时。 At that time, people did not know that the earth moves. He told me last week that he is eighteen. 2) 宾语从句中的助动词ought, need, must, dare 时态是不变的。 H…...
had better表示最好
21.9 had better表示"最好" had better 相当于一个助动词,它只有一种形式,它后面要跟动词原形。 had better do sth had better not do sth It is pretty cold. You'd better put on my coat. She'd better not play with the dog. had bett…...