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When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expa
句子
When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.
问题
句子分析（俗称“长难句分析”）是训练提高基础阅读能力的有效手段。我们通过对托福(TOEFL)、雅思(IELTS)、GRE、考研以及四六级等考试中真实出现过的句子（如真题、TPO，剑桥系列）进行结构化分析，可以有效提升句子理解的准确性和效率。朗播通过近百万的用户实际数据分析发现，练习 300-400 个句子，会让阅读能力有显著提升。请按顺序阅读句子，并思考：
1. 句子属于哪种结构类型？简单句？并列复合句？主从复合句？
2. 句子由哪些子句构成，连接这些子句的关联词是什么？
3. 每个子句中各个语法成分分别是哪些？
4. 句子的中文意思是什么？
1. 句子属于哪种结构类型？简单句？并列复合句？主从复合句？
2. 句子由哪些子句构成，连接这些子句的关联词是什么？
3. 每个子句中各个语法成分分别是哪些？
4. 句子的中文意思是什么？
1. 主从复合句
2. 原句中的各个子句，子句类型以及连接词
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主句Oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.子句类型:主句连接词:
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分句-1The well reaches a pool.子句类型:状语从句连接词: WHEN
3. 句子成分
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主句Oil [主语] usually [状语] rises [谓语] up the well [状语] because of its density difference with water [状语] beneath it [定语] or [连接词] because of the pressure of expanding gas [状语] trapped above it. [定语]
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分句-1The well [主语] reaches [谓语] a pool. [宾语]
4. 句子翻译
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主句Oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.由于石油的密度与下方的水的密度的差异，或者说由于堵塞在石油上方的气体膨胀所产生的压力，石油通常会往上喷出油井。
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分句-1The well reaches a pool.油井到达油藏。
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全句When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it.当油井到达油藏时，由于石油的密度与下方的水的密度的差异，或者说由于堵塞在石油上方的气体膨胀所产生的压力，石油通常会往上喷出油井。
考点解析
根据朗播专家权威分析，句子“When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expa 英语长难句解析 ”主要针对以下知识点进行考查，关于这些知识点的讲解如下：
主从复合句
含有两套或更多的主谓结构，其中有一个是主要的主谓结构，其他主谓结构从属于它并且担任起句子成分。
①They believe that the computer will finally take the place of human beings.
②He asked me where he could get such medicine.
主句
主从复合句中的主干句子，能单独使用或出现的句子。
①They believe that the computer will finally take the place of human beings.
②He asked me where he could get such medicine.
状语从句
在主从复合句中，在句中作状语、起副词作用的句子，可以修饰谓语、非谓语动词、定语、状语或整个句子。
①Sometimes we teach our children the way our parents have taught us.
②No matter how hard he tried, she could not change her mind.
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学员笔记
笔记分享
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trap 堵塞，困住0
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expand v.膨胀 pressure of expanding gas trapped above it （被困）被堵塞的气体的膨胀的压力0
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pressure of expanding gas trapped above it 堵塞在石油上方的气体膨胀所产生的压力0
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1. trap 英[træp] 美[træp] vt. 诱骗;使受限制;困住;使（水与气体等）分离 n. 圈套;（对付人的）计谋;（练习射击用的）抛靶器;（捕捉动物的）夹子 vi. 设陷阱;装捕捉机;设圈套 2. oil pool: 油藏0
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pressure of expanding gas trapped above it 被堵塞在石油上方的气体的膨胀的压力0
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