●Pattern 2 (S + V + Cs)

　　1. 此句型的 “V” 是连系动词，“Cs” 是主语补语，或称表语。充当主语补语的有名词、代词、形容词、副词、数词、介词短语、动词 V-ing 形式或 V-ed 形式、不定式及名词性从句等，如：

　　My first name is Bill.

　　Life is colorful.

　　Seeing is believing.

　　Our belief is that things will improve.

　　2. 常见的连系动词有下列几类：

　　a. 表示“判断”：be;

　　b. 表示“变得”、“成为”：become, come, go, fall, get, grow, prove, turn 等;

　　c. 表示“保持着某一状态”：hold, keep, lie, remain, rest, sit, stay 等;

　　d. 表示“看起来”、“好像”：appear, look, seem 等;

　　e. 表示“实感”：feel, sound, taste, smell 等。

　　e.g. She is a teacher and I am a doctor.

　　Spring comes and all trees turn green.

　　He stayed awake all night.

　　You don’t look happy, what's the matter?

　　Their plan sounds wonderful.