用are
并列結(jié)構(gòu)作主語時(shí)謂語用復(fù)數(shù)
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.
The iron and steel industry is very important to our life.
典型例題
The League secretary and monitor ___ asked to make a speech at the meeting.
A.is B.was C.are D.were
答案B.注：先從時(shí)態(tài)上考慮.這是過去發(fā)生的事情應(yīng)用過去時(shí),先排除A.,C..本題易誤選D,因?yàn)門he League secretary and monitor 好象是兩個(gè)人,但仔細(xì)辨別,monitor 前沒有the,在英語中,當(dāng)一人兼數(shù)職時(shí)只在第一個(gè)職務(wù)前加定冠詞.后面的職務(wù)用and 相連.這樣本題主語為一個(gè)人,所以應(yīng)選B.