1.We saw a lot of commercial buildings in Chicago. A condemned B razed C business D vacant 2.Salt has been a respected commodity for much of recorded time. A flavoring B preservative C remedy for illnes D article of trade 3.Pure feldspar is a colorless, transparent mineral, but impurities commonly make it opaque and colorful. A truly B rapidly C periodically D frequently 4.In 1925 Clarence Darrow competently opposed William Jennings Bryan at the renowned Scopes’ “Monkey Trial”. A adeptly B maliciously C privately D rashly 5.The Olympic Games attempt to transcend national interests and bring together the best international athletes in a spirit of friendly competition and peace. A debate B celebration C instruction D rivalry 答案：1.C commercial adj. 商業(yè)的, 貿(mào)易的 (business, mercantile)/homespun adj. 樸素的 (simple)/vacant adj. 未被占用的 (empty, uninhabited)/razed adj. 被夷為平地的 (leveled) 2.D commodity n. 商品;日用品 (article of trade, goods)/remedy n. 補(bǔ)救;治療法 (treatment, redress)/preservative n. 防腐劑/flavoring n. 調(diào)味品, 調(diào)料 (seasoning) 3.D commonly adv. 通常地 (frequently, usually)/transparent adj. 透明的 (seethrough)/feldspar n. 【礦】長石 (crystalline mineral rock)/opaque adj. 不透明的 (nontransparent)/periodically adv. 定期地 (intermittently) 4.A competently adv. 充分地 (adeptly, sufficiently)/adeptly adv. 熟練地 (efficiently, skillfully)/maliciously adv. 不懷好意地 (malevolently, wickedly)/rashly adv. 輕率地 (brashly, incautiously) 5.D competition n. 競爭 (rivalry, contention)/athlete n. 運(yùn)動(dòng)員 (sportsman)/rivalry. 競爭(competition); 敵對(duì)狀態(tài)