托福阅读高难度文章长难句实例解析：三角洲的岩石化石

2020年06月05日14:08 来源：小站整理: 参与（0）阅读（2525）

摘要：托福阅读长难句可以说是考试中的一个重大难关，想要克服它就需要积累足够的应对经验。考生需要在日常备考中多做一些长难句分析理解方面的训练才能有效提升应对能力。来看本文的具体分析。(搜“小站托福”公众号，回复关键词“资讯”，掌握托福最新的考试资讯及留学信息。)

想要看懂托福阅读长难句，考生除了拥有牢固的英语语法基础外，还需要积累大量的实际分析和应对长难句的经验。下面小编就来为大家带来一些托福精选资料教材中的长难句案例分析，帮助考生提升理解长难句的能力，更好地解答阅读难题。

托福阅读100个长难句实例分析

原句案例：

The delta rocks in which these fossils are found are commonly red due to oxidized iron minerals, indicating that the deltas formed in a climate that had alternate wet and dry periods.

词汇解析：

delta: an area of low land where a river spreads into many smaller rivers near the sea

oxidized: to combine with oxygen, or make something combine with oxygen, especially in a way that causes rust.

mineral: a substance that is formed naturally in the earth, such as coal, salt, or stone. minerals can be dug out of the ground and used

alternate: two alternate things are placed one after the other in a regular pattern

结构分析：

复合句。带有in which 引导的定语从句和that 引导的宾语从句，随后又有第二个that引导的定语从句。

句子分析：

The delta rocks in which these fossils are found are commonly red due to oxidized iron minerals,主句中，the delta rocks 是主语，后接in which 引导的定语从句，which指代的是delta rocks, 在从句中，these fossils 是主语， are found 是谓语。接下来回到主句，are commonly red 是系表结构作谓语部分，due to oxidized iron minerals, 原因状语。本部分意思是：化石常在这些三角洲的岩石中发现，而这些岩石由于氧化铁矿物，通常都是红色的。

indicating 作为定语。 that the deltas formed in a climate that had alternate wet and dry periods. 第一个that引导的宾语从句中，the deltas 是主语，formed 谓语，in a climate 时间状语。第二个that引导的定语从句中，that指代climate，作为主语， had 谓语，alternate wet and dry periods，宾语。本部分意思是：表明三角洲形成于干湿交替时期。