Though the "No smoking" signs have existed for long in public places, heavy smokers often  them and light up cigarettes.

A．a(chǎn)bandonB．postponeC．declineD．ignore

D

解析試題分析：動(dòng)詞辨析。A拋棄；B延期，使…延續(xù)；C下降；D忽視，不理睬；句意：盡管“禁止抽煙”的標(biāo)志在公共場(chǎng)所存在很長(zhǎng)時(shí)間了，但是那些抽煙較多的人總是忽視這些牌子，點(diǎn)燃了香煙。故D正確。
考點(diǎn)：考查動(dòng)詞詞義辨析
點(diǎn)評(píng)：詞匯是學(xué)習(xí)語(yǔ)言的重要環(huán)節(jié)。要掌握好英語(yǔ),記憶相當(dāng)數(shù)量的詞匯是必不可少的。英語(yǔ)中的每一個(gè)單詞,不僅表達(dá)一定的概念,具有一定的詞匯意義,而且在語(yǔ)音、拼法、語(yǔ)法等方面都有自己的特點(diǎn)。在學(xué)生學(xué)習(xí)英語(yǔ)的過(guò)程中,單詞、詞組記憶是基礎(chǔ)。解答這類題目，關(guān)鍵是理解題干意思以及各選項(xiàng)詞組的意思。

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