Sam likes trekking_______the jungle, because he thinks it's exciting. A.over B.under C.across D.through
答案:D 【解析】考查介词辨析。over “在……上面”; under “在……下面”;across “穿过”,指的是从物体表面穿过;through “穿过”,指的是从立体空间穿过。jungle 意为“丛林”,故用介词through。 trek through the jungle “穿越丛林”。