-- Excuse me, sir, smoking          in the gas station.
-- Oh, I'm really sorry.
A. doesn't allow                B. isn't allowed             C. aren't allowed
B
句意:打擾了先生,在加油站是不允許吸煙的。結(jié)合語(yǔ)境可知本句主語(yǔ)是被允許的對(duì)象,故用被動(dòng)語(yǔ)態(tài),smoking表示抽象含義,故謂語(yǔ)動(dòng)詞用單數(shù)。被動(dòng)語(yǔ)態(tài)一般由be動(dòng)詞加動(dòng)詞的過(guò)去分詞構(gòu)成,故選B。
點(diǎn)評(píng):此類(lèi)題型主要是確定句子主語(yǔ)與謂語(yǔ)動(dòng)詞的關(guān)系。如果是主動(dòng)關(guān)系則用主動(dòng)語(yǔ)態(tài),反之如果是動(dòng)賓關(guān)系,則用被動(dòng)語(yǔ)態(tài)。注意一些接不帶to的不定式做賓語(yǔ)補(bǔ)足語(yǔ)的動(dòng)詞用作被動(dòng)語(yǔ)態(tài)時(shí),不定式符號(hào)to要加上。
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