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15.1 并列結(jié)構(gòu)作主語(yǔ)時(shí)謂語(yǔ)用復(fù)數(shù)
?
  Reading and writing are very important.


  注意: 當(dāng)主語(yǔ)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(yǔ)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(guò)去發(fā)生的事情應(yīng)用過(guò)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(méi)有the,在英語(yǔ)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(yǔ)為一個(gè)人,所以應(yīng)選B。













 學(xué)習(xí)啦--英語(yǔ)語(yǔ)法大全