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If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of earth would drop, affecting even o
句子
If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of earth would drop, affecting even organisms not living in the oceans.
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Then the oxygen content of earth would drop, affecting even organisms not living in the oceans.子句类型:主句连接词:
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分句-1For example, something were to happen to destroy much of the plankton in the oceans.子句类型:状语从句连接词: IF
3. 句子成分
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主句Then [状语] the oxygen content [主语] of Earth [定语] would drop, [谓语] affecting even organisms not living in the oceans. [状语]
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分句-1For example, [状语] something [主语] were to happen [谓语] to destroy much of the plankton [状语] in the oceans. [定语]
4. 句子翻译
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主句Then the oxygen content of earth would drop, affecting even organisms not living in the oceans.那么，地球的含氧量将会下降，影响甚至会波及不在海洋中生活的生物。
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分句-1For example, something were to happen to destroy much of the plankton in the oceans.一些事情的发生毁灭了海洋中的大部分浮游生物。
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全句If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of earth would drop, affecting even organisms not living in the oceans.举个例子，如果一些事情的发生毁灭了海洋中大量的浮游生物，那么，地球的含氧量将会下降，影响甚至会波及不在海洋中生活的生物。
考点解析
根据朗播专家权威分析，句子“If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of earth would drop, affecting even o 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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plankton 浮游生物0
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oxygen content 含氧量 not living in the oceans0
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something were to happen to destroy much of the plankton 这里的Be动词是助动词，后面不是前面sth的属性，虚拟语气0
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oxygen content 氧气量0
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oxygen content 氧气量 plankton是浮游生物 in the oceans.做定语，不是状语，修饰逻辑主语 to happen to do 虚拟语气，碰巧会做某事，谓语划分到to happen即可，不是道to do 后面 英语中是就近修饰原则，区分定语和状语，定语修饰名词性结构，状语修饰非名词性结构0
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