（答案是B。這里的sign是名詞，意思是“標(biāo)志牌”。）
    2003年高考閱讀理解第5篇：
    Perhaps the best sign of how computer and Internet use pushes up demand for paper comes from the high?鄄tech industry itself, which sees printing as one of its most promising new markets.
    也許計(jì)算機(jī)和網(wǎng)絡(luò)推動(dòng)對(duì)紙張需求的征兆來(lái)自高科技產(chǎn)業(yè)本身，該產(chǎn)業(yè)將印刷當(dāng)成它最有前途的新市場(chǎng)之一。（sign是名詞，表示“征兆”。）
    spare
    adj. 多余的；剩下的；空閑的。如：
    Do you often read books in your spare time?
    你業(yè)余時(shí)間?？磿鴨幔?BR>    v. 節(jié)約；節(jié)省；勻給。如：
    She never spares the seasonings when cooking.
    她做飯的時(shí)候從不吝惜調(diào)料。
    Can you spare me 5 minutes? I have something important to tell you.
    你能為我抽出5分鐘時(shí)間嗎？我有重要的事情告訴你。
    [身臨其境]
    2000年高考單項(xiàng)填空第12題：
    Let Harry play with your toys as well, Clare — you must learn to _______.