大学英语四级改革适用（阅读）模拟试卷883
词汇理解
An astronaut on board the International Space Station (ISS) has snapped a stunning photo of an ancient lava flow (熔岩流) stretching across the desert in New Mexico. From above, the frozen river of volcanic rock looks like a dark scar【C1】________into the surrounding desert.
The basaltic lava flow, known as the Carrizozo Malpais, covers around 337 square kilometers and is around 80 kilometers long. It is【C2】________near Carrizozo, a city in the Chihuahuan Desert in New Mexico, and is one of the largest lava flows to have【C3】________on Earth in the past 10,000 years, according to the U.S. Geological Survey (USGS).
The eruption that gave birth to the Carrizozo Malpais began around 5,000 years ago and【C4】________for between 20 to 30 years. During that time, magma (岩浆) slowly trickled out of the ground from a subsurface shield volcano, which has since become【C5】________. Insulated lava tubes beneath the surface spread the molten rock out over an【C6】________large area.
The new image is a mosaic (拼凑而成的东西) of four photographs taken on June 30 by an【C7】________astronaut from the Expedition 67 crew on board the ISS. The stitched-together shot, which is one of the most detailed aerial【C8】________of the lava flow ever taken, was released online Monday.
The uneven, textured appearance of the frozen lava is the【C9】________of lighting, collapses and depressions in the volcanic rock.
The ancient lava field may seem lifeless from above, but a number of desert plant【C10】________can grow in the frozen magma.
A) accidentally E) formed I) lastedM) species
B) accounted F) images J) located N) unidentified
C) carved G) inactive K) recognized O) unusually
D) conflict H) infinite L) result
1.【C1】
C）carved
解析：空格所在句子的主干是 the frozen river of volcanic rock looks like a dark scar，因此into the surrounding desert 作后置定语，修饰 scars，初步判断空格处可填入动词或形容词，以表明 scar 和 desert 之间的关系。备选项中，carved意为“雕刻”，符合语境，故选 C。
2.【C2】
J）located
解析：本段开头介绍了熔岩流的占地面积，本句承接上文，进一步介绍这一熔岩流的具体位置。be located 是固定搭配，意为“位于”，符合语境，故选J。
3.【C3】
E）formed
解析：此处 to have________on Earth in the past 10，000 years 是不定式结构，充当one of the largest lava flows 的定语，故空格处应填入动词的过去分词，构成不定式的完成式（to have done）。熔岩流是在过去一万年中形成的，是一个逐渐形成的过程。备选项中，formed意为“形成”，符合语境，故选 E。
4.【C4】
I）
解析：lasted 本句的主 干 是 The eruption…began around 5，000 years ago and________for between 20 to 30 years。that 引导定语从句，修饰主语 the eruption，因此，空格处应填入一个动词过去式，与 began一起充当并列谓语动词。火山喷发始于5000年前左右，此处应表示它“持续”了近20 至 30年。lasted意为“持续”，符合语境，故选 I。
5.【C5】
G）inactive
解析：此处空格位于 which 引导的定语从句中，该从句中，系动词 become 后面缺少表语，故应填入一个形容词或分词，以描述与火山相关的状态。备选词汇中，inactive意为“不活跃的”，符合语境，故选G。
6.【C6】
O）unusually
解析：空格前为不定冠词an，空格后为large area，由此可知，空格处应填入一个副词，修饰 large。将备选副词 accidentally（偶然）和 unusually（异乎寻常地；极其）代入原文，可知 unusually 符合语境，即“地表下绝缘的熔岩管将熔岩扩散到一个异常大的区域”，故选O。
7.【C7】
N）unidentified
解析：空格位于不定冠词 an 和名词 astronaut之间，故应填入一个形容词或分词，充当astronaut的定语。将备选词汇代入原文，可知unidentified（身份不明的）符合语境，即“这幅新照片是由国际空间站上的“远征67号”成员中的一名身份不明的宇航员于6月 30 日拍摄的四张照片拼接而成的”。故选 N。
8.【C8】
F）images
解析：空格前为形容词 aerial，空格后为介词短语 of the lava flow，故空格处应填入一个名词。将备选名词代入原文，可知 images（照片）符合语境
本文档预览：3500字符，共14004字符，源文件无水印，下载后包含无答案版和有答案版，查看完整word版点下载
