Reading & Writing:Fill in the blanks #22 Mass Extinction

There are some words missing in the following text. Please select the correct word in the drop-down box.

Scientists have discovered the cause of a mass extinction of sea-floor marine organisms 800,000 years ago — which also provides insight into how climate change can impact deep ocean biota.

In a new study in the journal Nature Communications, scientists from the universities of Nottingham and Durham and the British Geological Survey (BGS), have discovered the cause of a mass extinction within marine organisms called foraminifera. Foraminifera are an important group in relation to biomass in the deep ocean and the cause of their extinction was unknown. Scientists tested various possible for the mass extinction and were able to discount others such as ocean cooling. , they discovered that the extinction was caused by a global change in plankton at the surface of the ocean.

羽老师提示:

本题 PTE Core 核心词汇(词义 + 原文例句):


published:动词,“发表,出版”。

例句:In a new study published in the journal Nature Communications...

含义:一项发表于《自然通讯》期刊的新研究...

causes:名词,“原因,起因”。

例句:...tested various possible causes for the mass extinction...

含义:测试了多种可能的灭绝原因。

previously:副词,“以前,先前”。

例句:...the cause of their extinction was previously unknown.

含义:它们灭绝的原因在之前是未知的。

Instead:副词,“相反,转而”。

例句:Instead, they discovered that the extinction was caused by...

含义:相反,他们发现灭绝的真正原因是...

 

本题 PTE Core 固定搭配(原句 + 释义):


published in (a journal):发表在(某期刊)

例句:In a new study published in the journal Nature Communications...

possible causes for:……的可能原因

例句:...tested various possible causes for the mass extinction...

was previously unknown:之前未知的

例句:...the cause of their extinction was previously unknown.

Instead, S + V:相反地,主语+谓语

例句:Instead, they discovered that the extinction was caused by...

impact on: 对.....有影响

例句:Her speech made a profound impact on everyone.

 

正确答案解析:

 

on: 与impact搭配,表示对.....有影响。

published:作为动词,搭配“study”常用于学术语境,表示“研究发表”。

causes:复数形式的“原因”,用于说明灭绝的多种可能解释。

previously:副词,“之前”,强调与后面的“unknown”形成时间对比。

Instead:副词,表示转折,与前句的“discounted others”逻辑对应,指明真正原因。

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