1.classification of words(1)variable and invariable wordsvariable words may have inflective changes. Such as follow –follows-followed-following. Invariable words do not have inflective changes. Such a
一、什么是主语?主语表示句子主要说明的人或事物什么可以做主语?名词、代词、数词、动名词、不定式、名词化的形容词、短语、从句。名词作主语 David arrived last night. 大卫昨晚到达。 Pride goes before a fall. 骄必败。 A mooncake is a delicious, round cake. 月饼是一种美味的,圆的饼干。The first