2017大学英语六级阅读理解真题训练
阅读理解在大学英语六级考试中占着一定的.比例,大家想要考过英语六级,阅读理解必须要落实好,下面是小编为大家整理的大学英语六级阅读理解真题训练,希望能给大家带来帮助!
篇一:Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world's volcanoes. they are not always found at the boundaries of the great drifting plates that make up the earth's surface; on the contrary, many of chem lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The bot spots and their volcanic trails are milestones that mark the passage of the plates.
That the plates are moving is now beyond dispute. Africa and South America. for example. are moving away from each other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth’s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots. anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.
The significance of hot spots is not confined lo their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes chat propel the plates across the globe. When a continental plate comes to rest over a hot spot. the material rising from deeper layer creates a broad dome. As the dome grows, it develops deep fissures (cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hoc spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstancy).
can learn from che first paragraph that_____________.
A. there are no volcanic activities on hoc spots
B. most hoc spots are located in the inner part of a plate
C. hot spots usually lie. at che boundaries of drifting plates;
D. the passage of plates through hot spots will leave dead volcanoes
author believes that_____________.
A) the motion of the plates corresponds to thar of the earth's interior
B) the geological theory about drifting plates has been proved to be true
C) the hot spots and the plates move slowly in opposite directions
D) the movement of hot spots proves the continents are moving apart
Africa and South America were once joined can be deduced from the fact that_________.
A) the two continents are still moving in opposite directions
B) they have been found to share certain geological features
C) the African plate has been stable for 30 million years
D) over 100 hot spots are scattered all around the globe
hot spot theory may prove useful in explaining__________.
A) the structure of the African plates.
B) the revival of dead volcanoes.
C) the mobility of the continents.
D) the formation of new oceans.
passage is mainly about______________.
A) the features of volcanic activities
B) the importance of the theory about drifting plates
C) the significance of hot spots in geophysical studies
D) the process of the formation of volcanoes
篇二:Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world's volcanoes. they are not always found at the boundaries of the great drifting plates that make up the earth's surface; on the contrary, many of chem lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The bot spots and their volcanic trails are milestones that mark the passage of the plates.
That the plates are moving is now beyond dispute. Africa and South America. for example. are moving away from each other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth’s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots. anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.
The significance of hot spots is not confined lo their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes chat propel the plates across the globe. When a continental plate comes to rest over a hot spot. the material rising from deeper layer creates a broad dome. As the dome grows, it develops deep fissures (cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hoc spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability (inconstancy).
can learn from che first paragraph that_____________.
A. there are no volcanic activities on hoc spots
B. most hoc spots are located in the inner part of a plate
C. hot spots usually lie. at che boundaries of drifting plates;
D. the passage of plates through hot spots will leave dead volcanoes
author believes that_____________.
A) the motion of the plates corresponds to thar of the earth's interior
B) the geological theory about drifting plates has been proved to be true
C) the hot spots and the plates move slowly in opposite directions
D) the movement of hot spots proves the continents are moving apart
Africa and South America were once joined can be deduced from the fact that_________.
A) the two continents are still moving in opposite directions
B) they have been found to share certain geological features
C) the African plate has been stable for 30 million years
D) over 100 hot spots are scattered all around the globe
hot spot theory may prove useful in explaining__________.
A) the structure of the African plates.
B) the revival of dead volcanoes.
C) the mobility of the continents.
D) the formation of new oceans.
passage is mainly about______________.
A) the features of volcanic activities
B) the importance of the theory about drifting plates
C) the significance of hot spots in geophysical studies
D) the process of the formation of volcanoes
-
2023年6月英语六级听力长对话的技巧
长对话由于篇幅较长,想要听一遍就将主要内容都记清楚,几乎是不可能的。下面本站小编为大家搜索整理了关于英语六级听力长对话的技巧,欢迎阅读积累,希望对大家备考有所帮助!想了解更多相关信息请持续关注我们应届毕业生考试网。6月英语六级听力长对话的技巧1考生只...
-
2017年12月英语六级词汇冲刺练习题
距离2017下半年的英语六级考试越来越近了,为了帮助广大同学更好地备考,以下是yjbys网小编整理的关于英语六级词汇冲刺练习题,供大家备考。1.____nativetoNorthAmerica,cornhasnowspreadallovertheworld.A.InspiteofB.ThatitisC.ItwasD.Although2.Ourcivilizationc...
-
英语六级作文类型总结
在平时的学习、工作或生活中,许多人都写过作文吧,作文是人们把记忆中所存储的有关知识、经验和思想用书面形式表达出来的记叙方式。还是对作文一筹莫展吗?以下是小编为大家收集的英语六级作文类型总结,仅供参考,大家一起来看看吧。英语六级作文类型总结图表型Direct...
-
2016年12月英语六级选词填空专项练习题
2016年12月英语六级考试还有不到两个月的时间就要开考了,yjbys网小编为大家准备了一些六级选词填空练习题,希望大家好好练习。下面是yjbys网小编提供给大家关于英语六级选词填空专项练习题,希望对同学们有所帮助。Itisn'tjustthebeerthat(1)__________tobeerb...