考博英語重點語法：語法一致原則是指句子的主語和謂語在語法形式上一致，即通常情況下，謂語動詞的單復數形式依主語的單復數形式而定， 主語為單數形式時謂語動詞用單數形式， 主語為復數形式時謂語動詞也用復數形式。具體內容請看下文。
# 3gdT 2jH&@g$cl; 1. 以單數名詞或代詞、動詞不定式短語、動名詞短語或從句作主語時，謂語動詞一般用單數形式;主語為復數時，謂語動詞用復數形式。如：His father is working on the farm. / To study English well is not easy. / What he said is very important for us all. / The children were in the classroom two hours ago. / Reading in the sun is bad for your eyes.
~A-VgBbU>_ 注意：由what引導的主語從句，后面的謂語動詞多數情況用單數形式，但若表語是復數或what從句是一個帶有復數意義的并列結構時，主句的謂語動詞用復數形式。如：What I bought were three English books. / What I say and do is (are) helpful to you.
E?F?)!% 2. 由連接詞and或both …… and連接起來的合成主語后面，要用復數形式的謂語動詞。如：Lucy and Lily are twins. / She and I are classmates. / The boy and the girl were surprised when they heard the news. / Both she and he are Young Pioneers.
a~O](/+p; 注意：(1)若and所連接的兩個詞是指同一個人或物時，它后面的謂語動詞就應用單數形式。如：The writer and artist has come. (2)由and連接的并列單數主語前如果分別有no， each， every more than a (an) ， many a (an)修飾時，其謂語動詞要用單數形式。如：Every student and every teacher was in the room. / No boy and no girl likes it.
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