11．Millions of dollars'worth damage______ by the tornado（龍卷風(fēng)） which swept across the south of America last night．（　　）
A．had been causedB．will be causedC．was causedD．has been caused

分析 成千上萬(wàn)美元的價(jià)值毀壞由龍卷風(fēng)產(chǎn)生了，這次龍卷風(fēng)昨晚席卷了美國(guó)南部．

解答 答案：D 考查時(shí)態(tài)辨析．雖然龍卷風(fēng)發(fā)生在昨晚，但對(duì)現(xiàn)在產(chǎn)生了影響，即產(chǎn)生了成千上萬(wàn)美元的價(jià)值毀壞，要用現(xiàn)在完成時(shí)態(tài)．A項(xiàng)是過(guò)去完成時(shí)態(tài)，表示產(chǎn)生的毀壞在昨晚之前；B項(xiàng)是一般將來(lái)時(shí)態(tài)，這里沒(méi)有表示將來(lái)的時(shí)間；C項(xiàng)是一般過(guò)去時(shí)態(tài)，表示產(chǎn)生的毀壞與現(xiàn)在沒(méi)有關(guān)系，這顯然不符合題意．

點(diǎn)評(píng) 解答此類問(wèn)題要了解各種時(shí)態(tài)的基本含義，并區(qū)別各種時(shí)態(tài)之意的差異，了解某些時(shí)態(tài)的特殊用法，然后結(jié)合語(yǔ)境選擇正確答案．

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