請看以下的句子,特別注意劃線的字群:
1.Understanding English is easy.
2.I want you to work hard.
3.Peter, who has been to England, speaks good English.
4.I told him that I was going away.
Understanding English和to work hard有一共同特色,他們都沒有主詞,也沒有動詞,這種字群,叫做詞組(phrase)。
Who has been to England和I was going away中,內部都有主詞和動詞,這種字群,叫子句(clause)。
由于我們已經對詞組很熟悉,我們在這里不再討論,而我們在這一章將多多介紹子句的用法。