| 题号 | 题型 | 我的答案 | 正确答案 | 结果 |
|---|---|---|---|---|
| Q14 | 填空题 | vi (Less valuable sediment than before) | iv (Interrupting a natural process) | |
| Q22 | T/F/NG | NO | NOT GIVEN | |
| Q23 | T/F/NG | YES | NO | |
| Q24 | 填空题 | H (sediment) | F (pollutants) |
Paragraph B 的标题
"Before the dams were built, the Nile flowed freely, carrying huge quantities of sediment north..."
"But when the Aswan dams were constructed... most of the sediment... accumulated up above the dam... instead of passing down to the delta."
Sediment in the irrigation canals on the Nile delta causes flooding.
"The water in the irrigation canals is still or very slow-moving and thus cannot carry sediment, Stanley explains. The sediment sinks to the bottom of the canals and then is added to fields by farmers or pumped with the water into the four large freshwater lagoons..."
又是 NO vs NG 的老问题：原文提到了灌溉渠中的沉积物，但没有讨论它是否导致洪水。"提到了沉积物但没讨论它和洪水的关系" = 该子话题没被讨论 = NG。
Water is pumped from the irrigation canals into the lagoons.
"The sediment sinks to the bottom of the canals and then is added to fields by farmers or pumped with the water into the four large freshwater lagoons..."
a marked increase in the level of ___
"by the time the sediment has come to rest in the fields and lagoons it is laden with municipal, industrial and agricultural waste from the Cairo region..."
"'Pollutants are building up faster and faster,' says Stanley."
"the increase in mercury, lead, copper and zinc..."
| 问题类型 | 具体表现 | 错题 | 改进方法 |
|---|---|---|---|
| 标题匹配不精准 | B段讲"打断自然过程"，选了"沉积物价值降低" | Q14 | 抓段落核心动作，不是挑一个细节匹配 |
| NO vs NG（老毛病） | 原文没讨论 flooding，选了 NO | Q22 | "没讨论该子话题" = NG，NO 需要直接矛盾证据 |
| 主语偷换没发现 | 原文说 sediment is pumped with water，题目换成 water is pumped | Q23 | Y/N/NG 检查题目和原文的主语是否一致 |
| 摘要语法结构没读清 | "___ contained in the silt" 要填沉积物里的东西，填了沉积物本身 | Q24 | 注意介词 in——X contained in Y，X ≠ Y |
| 原文表达 | 题目/选项表达 | 中文 | 题号 |
|---|---|---|---|
hold back virtually all of the sediment / accumulated up above the dam | interrupting a natural process | 截住几乎所有沉积物 / 沉积物在大坝上游积累 = 打断自然过程 | Q14 |
laden with municipal, industrial and agricultural waste | increase in the level of pollutants | 充满市政、工业和农业废物 = 污染物水平上升 | Q24 |
make artificial floods to flush out the delta waterways | artificial floods (选项A) | 制造人工洪水冲刷三角洲水道 | Q25 |
an alternative process such as desalination | desalination (选项B) | 海水淡化等替代方案 | Q26 |
| 词汇 | 释义 | 雅思高频 | 真题出现 |
|---|---|---|---|
| sediment /ˈsedɪmənt/ | n. 沉积物，泥沙 | 地理/环境话题核心词 | 剑5T3P2（全文高频） |
| silt /sɪlt/ | n. 淤泥，粉砂 | 地理话题 | 剑5T3P2 |
| erode / erosion | v./n. 侵蚀 | 538考点词（第3类 #115） | 剑5T3P2 |
| replenish /rɪˈplenɪʃ/ | v. 补充，重新装满 | 学术阅读 | 剑5T3P2 |
| lagoon /ləˈɡuːn/ | n. 泻湖，环礁湖 | 地理话题 | 剑5T3P2 |
| laden with /ˈleɪdən/ | adj. 装满的，充满的（= full of） | 学术阅读 | 剑5T3P2 |
| desalination /diːˌsælɪˈneɪʃən/ | n. 海水淡化 | 环境/水资源话题 | 剑5T3P2 |
| aquaculture /ˈækwəkʌltʃə/ | n. 水产养殖 | 环境/农业话题 | 剑5T3P2 |
| dispensing with | phr. 免除，不需要 | 学术短语 | 剑5T3P2 |