2、t.开发Ⅱ.拓展词汇1.woodn.(常作复数)树林;木料→woodenadj.木制的2.surroundvt.围绕;环绕→surroundingadj.周围的;环绕的→surroundingsn.(pl.)周围环境3.downstreamadv.向下游;随波而下→upstreamadv.在上游;逆流4.hillyadj.多山的;丘陵起伏的→hilln.小山;丘陵5.narrowvi.变狭窄adj.狭窄的;勉强的→narrowlyadv.狭窄地;勉强地6.distantadj.遥远的→distancen.距离1.plainn.平原[联想] p