1 . keep an eye on照看,监视
2 . be based on / upon基于
3 . 有限的,有限制的
4 . upstream 逆流而上
5 . exterior /ekstiEriE/ a外部的;对外的
6 . research on/into 对的研究,调查 resistance to 对的抵抗,阻力
7 . adapt 改编,改写
8 . stir /stE:/ vt动;拨动;激动
9 . be cautious of谨防
10 . downstream 顺流而下
1 . fit
2 . right bank 右岸
3 . on the basis of根据,在基础上
4 . on account of 由于,因为
5 . 凶猛的,残忍的;狂热的,强烈的`
6 . in the back of在后部; on the back of在后部; be on ones back 卧病不起
7 . look sb in the eye 正视, 打量
8 . adapt oneself to 使自己适应于
9 . in accord with与一致 out of ones accord with同····不一致
10 . for certain of 肯定地,有把握
1 . takethefloor起立发言
2 . islands 岛
3 . grey /grei/ a灰色的 n灰色
4 . but for 要不是表示假设
5 . turn ones back on sb 不理睬,背弃,抛弃
6 . attend to 注意,照顾; attend on 侍候,照料
7 . dream /dri:m/ n梦;梦想 vi做梦
8 . come into power开始执政;
10 . remote /rimEut/ a相隔很远的;冷淡的
1 . adhere to 粘附;坚持,遵循
2 . preface /prefis/ n序言,前言,引语
3 . by birth在出生上,论出身,按血统at birth在出生时; give birth to出生
4 . last but one倒数第二
5 . finite
6 . delta 三角洲
7 . in case 万一;
8 . in addition to 除外
9 . flood land 河滩地
10 . exert oneself to do sth 努力,使劲
1 . in any case 无论如何
2 . contraryto与相反
3 . come into sight进入视野;
4 . arrange for sb/sth to do sth安排做
5 . main channel 主水道
6 . attitude to/ toward 对的态度看法
7 . swamp, marsh 沼泽
8 . have an advantage over胜过··· have the advantage of由于处于有利条件have the advantage of sb知道某人所不知道的事
9 . emotion /imEuFEn/ n情感,感情;激动
10 . in accordance with 依照,根据
1 . alluvial fan 冲积扇
2 . in the extreme 极其
3 . come into fashion开始时新;
4 . be anxious about为焦急不安;或anxious for
5 . contrastto和形成对比bycontrast对比之下contrastwith把与相对(对照
6 . in all 总共,总计
7 . becapableof能够,有能力becapableofbeing+过去分词是能够被的
8 . take advantage of 利用
9 . be busy with sth于某事 be busy doing sth忙于做某事
10 . on no account 绝不要,无论如何不要
1 . contributeto有助于
2 . in advance 预告,事先
3 . point 汇合点
4 . financial
5 . fierce
6 . tributaries, streams 支流
7 . come into existence 开始存在;
8 . beyond expression 无法形容, 说不出的
9 . absorb 吸引的注意力: be absorbed in全神贯注于近: be engrossed in; be lost in; be rapt in; be concentrated on; be focused on; be centered on
10 . be acquainted with 了解; 熟悉