15．The population of China      to many times what it was in 1949，and most of its population      farmers．（　　）
A．have grown； areB．have grown； isC．has grown； isD．has grown； are

分析 中國(guó)的人口已經(jīng)增加到949年的很多倍，并且當(dāng)時(shí)大部分人口是農(nóng)民．

解答 答案 D 考查主謂一致：population作主語(yǔ)時(shí)謂語(yǔ)動(dòng)詞一般用單數(shù)，象第一個(gè)空就是單數(shù)，但若前面有分?jǐn)?shù)或百分?jǐn)?shù)修飾時(shí)，若其后跟的是系表結(jié)構(gòu)，且表語(yǔ)為復(fù)數(shù)，謂語(yǔ)動(dòng)詞要用復(fù)數(shù)．第二個(gè)空有most of修飾，而且表語(yǔ)是復(fù)數(shù)，所以be動(dòng)詞是復(fù)數(shù)，選D．

點(diǎn)評(píng) 在英語(yǔ)中，句子的主語(yǔ)和謂語(yǔ)動(dòng)詞要保持?jǐn)?shù)上的一致關(guān)系，叫主謂一致．這種關(guān)系通常要遵循下面三條原則：1．語(yǔ)法一致原則．句子的主語(yǔ)是單數(shù)形式，謂語(yǔ)動(dòng)詞要用單數(shù)形式；主語(yǔ)是復(fù)數(shù)形式，謂語(yǔ)動(dòng)詞用復(fù)數(shù)形式2．意義一致原則即謂語(yǔ)動(dòng)詞該用單數(shù)還是復(fù)數(shù)取決于主語(yǔ)所表達(dá)的內(nèi)容在含義是單數(shù)意義還是復(fù)數(shù)意義．3．鄰近原則謂語(yǔ)動(dòng)詞該用單數(shù)還是復(fù)數(shù)形式，取決于最鄰近它的名詞、代詞或其它詞的數(shù)．這題考查的是population作主語(yǔ)時(shí)謂語(yǔ)的用法．

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