With the development of science, more new technology         to the field of IT.

A.has introduced                         B.is being introduced

C.is introduced                           D.was introduced

 

【答案】

B

【解析】

試題分析:句意,隨著科技的發(fā)展,更多新的技術(shù)被引進(jìn)到IT領(lǐng)域。表示現(xiàn)階段正在進(jìn)行的動(dòng)作,用現(xiàn)在進(jìn)行時(shí)。且主語(yǔ)new technology與動(dòng)作introduce之間是被動(dòng)關(guān)系,用現(xiàn)在分詞的被動(dòng)語(yǔ)態(tài),故選B。

考點(diǎn):時(shí)態(tài)和語(yǔ)態(tài)考查題

點(diǎn)評(píng):動(dòng)詞是謂語(yǔ)動(dòng)所表示的動(dòng)作或情況發(fā)生時(shí)間的各種形式。英語(yǔ)動(dòng)詞有16種時(shí)態(tài),但是常用的只有9種:一般現(xiàn)在時(shí)、一般過(guò)去時(shí)、一般將來(lái)時(shí)、現(xiàn)在進(jìn)行時(shí)、過(guò)去進(jìn)行時(shí)、現(xiàn)在完成時(shí)、過(guò)去完成時(shí)、過(guò)去將來(lái)時(shí)、現(xiàn)在完成進(jìn)行時(shí)。當(dāng)句子的主語(yǔ)是動(dòng)作的執(zhí)行者時(shí),謂語(yǔ)的形式叫主動(dòng)語(yǔ)態(tài)。句子的主語(yǔ)是動(dòng)作承受者時(shí),謂語(yǔ)的形式叫被動(dòng)作語(yǔ)態(tài)。被動(dòng)語(yǔ)態(tài)由助動(dòng)詞be + 過(guò)去分詞構(gòu)成,時(shí)態(tài)通過(guò)be 表現(xiàn)出來(lái)。

 

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