1、Don't _____ the news to the public until we give you the go-ahead (許可，準(zhǔn)許).

　　A. release　　B. discard　　C. relieve　　D. retain

　　2、The storm sweeping over this area now is sure to cause _____ of vegetables in the coming days.

　　A. rarity　　B. scarcity　　C. invalidity　　D. variety

　　3、Jack almost fell off the cliff, but managed to _____ until help came.

　　A. keep on　　B. catch on

　　C. count on　　D. hang on

　　4、Experts say walking is one of the best ways for a person to _____ healthy.

　　A. preserve　　B. stay　　C. maintain　　D. reserve

　　5、Expected noises are usually more _____ than unexpected ones of the like magnitude.

　　A. manageable　　B. controllable　　C. tolerable　　D. perceivable

　　參考答案&解析：

　　1、A, release.

　　[注釋]release(=allow news to be published)發(fā)布(新聞)：Details of the scheme have not yet been released to the public.(這項計劃的細(xì)節(jié)尚未向公眾發(fā)布。)

　　relieve 1)減輕(痛苦，緊張情緒等)：What will relieve a headache? This will help to relieve our hardship. 2)使放心，使寬慰：The good news relieved us, for we had been very anxious. 3)賑濟，救濟：The fund is for relieving distress among the flood victims. 4)relieve...from(of)解除，免除; a. This medicine will help to relieve you from your pain. b. He was relieved of his duties.

　　retain(= keep; continue to have or hold)保持，繼續(xù)保有：1)She retains a clear memory of her schooldays. 2)You must retain your tickets.

　　2、B. scarcity.

　　[注釋]scarcity(=the state of being scarce)缺乏;不足(指原本充足之物暫時在數(shù)量上的缺乏)。例如：The scarcity of fruit was caused by the drought.(水果的供應(yīng)不足是干旱所引起的。)rarity(=sth. uncommon, unusual or sth. valued because rare)珍稀，稀少：Snow is a rarity around the equator.(雪在赤道周圍是罕見之物。)invalidity(=making weak by illness; not suitable for use)無效性，喪失工作能力。Variety(=difference of condition or quality)變化，多樣化。

　　本題譯文：目前席卷這一地區(qū)的暴風(fēng)雨今后肯定會引起蔬菜短缺。

　　3、D. hang on.

　　[注釋]hang on(=hold fast, keep hold)牢牢抓住，抓緊不放：Help! I can't hang on much longer.(救命啊!我支持不住啦。)keep on(doing sth.)繼續(xù)(做......);catch on 理解;count on 指望，依賴。

　　本題譯文：杰克差點從懸崖上掉下來，但得以抓住不放直到得救。

　　4、B. stay.

　　[注釋]preserve, stay, maintain, reserve這4個詞均有“保持”，“維持”之意。stay后可接形容詞作表語：The weather stayed wet for three days.其他3個詞均為及物動詞。

　　Preserve(=keep safe from decay, risk, harm, danger, going bad etc.)保存，保護：1)Policemen preserve order in the streets.(警察在街上維持秩序。) 2)We must preserve our natural resources.(我們必須保護自然資源。)3)You paint woodwork to preserve it.(你油漆木制品以防腐爛。)

　　Maintain(=keep up)保持，維持，維修。

　　Reserve(=keep for a special purpose; store)保留，預(yù)定：1)I'll reserve my opinion at his time,(這時我將保留我的看法。) 2)I'll phone up today and reserve a room.(我今天將打電話預(yù)定一個房間。)

　　本題譯文：專家們說，步行是一個人保持健康的最好方法之一。

　　5、C. tolerable.

　　[注釋]tolerable(=fairly good, not too bad)可忍受的：The pain has become tolerable. manageable可處理的;可管理的;controllable可控制的;perceivable可覺察的。

　　本題譯文：料想到的嗓音通常情況下比起等量的意外嗓音來說是可以忍受的。