These ecologists posit that the relatively steady populations have “density-dependent” growth parameters, that is, rates of birth, death, and migratio 英语长难句解析

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句子

These ecologists posit that the relatively steady populations have “density-dependent” growth parameters, that is, rates of birth, death, and migration which depend strongly on population density.

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. 主从复合句

2. 原句中的各个子句，子句类型以及连接词

主句

These ecologists posit something.

子句类型:

主句

连接词:
分句-1

The relatively steady populations have "density-dependent" growth parameters, that is, rates of birth, death, and migration.

子句类型:

宾语从句

连接词: THAT
分句-2

Rates of birth, death, and migration depend strongly on population density.

子句类型:

定语从句

连接词: WHICH

3. 句子成分

主句

These ecologists [主语] posit [谓语] something. [宾语]
分句-1

The relatively steady populations [主语] have [谓语] "density-dependent" growth parameters [宾语], that is, [插入语] rates of birth, death, and migration. [同位语]
分句-2

Rates of birth, death, and migration [主语] depend strongly on [谓语] population density. [宾语]

4. 句子翻译

主句

These ecologists posit something.

这部分生态学家假设某事。
分句-1

The relatively steady populations have "density-dependent" growth parameters, that is, rates of birth, death, and migration.

相对稳定的种群有“种群密度相关”增长参数，即，出生率、死亡率以及迁徙规律。
分句-2

Rates of birth, death, and migration depend strongly on population density.

出生率、死亡率以及迁徙规律在很大程度上都依赖于种群密度。
全句

These ecologists posit that the relatively steady populations have “density-dependent” growth parameters, that is, rates of birth, death, and migration which depend strongly on population density.

这部分生态学家假设：那些相对稳定的种群有“种群密度相关”增长参数；即，在很大程度上都依赖于种群密度的出生率、死亡率以及迁徙规律。

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考点解析

根据朗播专家权威分析，句子“These ecologists posit that the relatively steady populations have “density-dependent” growth parameters, that is, rates of birth, death, and migratio 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：