謂語動(dòng)詞復(fù)數(shù)形式是加s嗎

主謂一致的動(dòng)詞只有原形和單數(shù)第三人稱形式，不能稱作單數(shù)或復(fù)數(shù)。主謂一致指單數(shù)主語要與動(dòng)詞的單數(shù)第三人稱形式保持一致，復(fù)數(shù)主語要與動(dòng)詞原形保持一致。主謂一致包內(nèi)括語法一致、概念一致和就近一致三種原則，應(yīng)用時(shí)需要根據(jù)具體情況而定。

主謂一致是指：

1.語法形式上要一致，即單復(fù)數(shù)形式與謂語要一致。

2.意義上要一致，即主語意義上的單復(fù)數(shù)要與謂語的單復(fù)數(shù)形式一致。

3.就近原則，即謂語動(dòng)詞的單復(fù)形式取決于最靠近它的詞語，

一般來說，不可數(shù)名詞用動(dòng)詞單數(shù)，可數(shù)名詞復(fù)數(shù)用動(dòng)詞復(fù)數(shù)。

（1）There is much water in the thermos.

但當(dāng)不可數(shù)名詞前有表示數(shù)量的復(fù)數(shù)名詞時(shí)，謂語動(dòng)詞用復(fù)數(shù)形式。

（1）Ten thousand tons of coal were produced last year.

（2）Large quantities of water are needed.

（3）Large amounts of money are enough.

（4）In western countries, mountains of rubbish are thrown away each day.

4.并列結(jié)構(gòu)作主語時(shí)謂語用復(fù)數(shù)。

（1）Reading and writing are very important.

注意：當(dāng)主語由and連結(jié)時(shí)，如果它表示一個(gè)單一的概念，即指同一人或同一物時(shí)，謂語動(dòng)詞用單數(shù)，and此時(shí)連接的兩個(gè)詞前只有一個(gè)冠詞。

（2）The iron and steel industry is very important to our life.

5.如果以what從句作主語，表語又是單數(shù)，主句的謂語動(dòng)詞一般用單數(shù);如果表語是復(fù)數(shù)，主句的謂語動(dòng)詞一般用復(fù)數(shù)。

（1）What caused the accident is a complete mystery.

（2）What his father left him are a few English books.