Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinction 英语长难句解析

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句子

Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinctions even if, on average, the population size should increase.

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？

学会分析长难句 ----> 上朗播网答案

1. 并列复合句

2. 原句中的各个子句，子句类型以及连接词

子句-1

Small populations will fluctuate enormously because of the random nature of birth and death.

子句类型:

并列句

连接词:
子句-2

These chance fluctuations can cause species extinctions.

子句类型:

并列句

连接词: AND
子句-3

On average, the population size should increase.

子句类型:

状语从句

连接词: EVEN IF

3. 句子成分

子句-1

Small populations [主语] will fluctuate [谓语] enormously [状语] because of the random nature [状语] of birth and death. [定语]
子句-2

These chance fluctuations [主语] can cause [谓语] species extinctions. [宾语]
子句-3

On average, [状语] the population size [主语] should increase. [谓语]

4. 句子翻译

子句-1

Small populations will fluctuate enormously because of the random nature of birth and death.

由于出生和死亡的随机性，小种群将会（在数量上）波动地非常厉害。
子句-2

These chance fluctuations can cause species extinctions.

这些可能的波动能够导致物种的灭绝。
子句-3

On average, the population size should increase.

通常来说这一种群的数量应当会增长。
全句

Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinctions even if, on average, the population size should increase.

由于出生和死亡的随机性，小种群数量会波动地非常厉害，并且这些可能的波动能够导致物种灭绝，即使通常来说这一种群的数量应当会增长。

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考点解析

根据朗播专家权威分析，句子“Small populations will fluctuate enormously because of the random nature of birth and death and these chance fluctuations can cause species extinction 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：