E-mail, as well as telephones, ____  an important part in daily communication.
A.is playingB.have played C.a(chǎn)re playingD.play
A

試題分析:考察主謂一致。本題的主語(yǔ)是E-mail, as well as telephones;謂語(yǔ)動(dòng)詞要和前面的E-mail保持一致,故使用單數(shù)形式。句意:電子郵件和電話在日常交流中正在起著一個(gè)很重要的作用。選項(xiàng)中只有A項(xiàng)是單數(shù)形式。故A正確。
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)。
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