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托福阅读真题练习:冰川形成的文本+题目+答案

2017年12月07日16:48 来源:小站整理
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摘要:托福阅读真题哪里有?大家平时备考托福阅读考试的时候都用的是哪些真题呢?除了TPO的托福阅读真题以外,大家进行托福阅读的练习大多数可能都是根据老托资料或者是课外资料来练习了。那么到哪里去找到托福阅读真题来进行练习呢?

托福阅读如何进行备考?除了大量的托福词汇储备以外,大家可能最需要的就是托福阅读真题的练习。那么除了TPO你还有哪些托福阅读真题进行练习呢?今天小编就为大家整理了托福阅读真题100篇:冰川形成的文本、题目以及答案,希望可以帮助到大家。

托福阅读真题练习:冰川形成的文本+题目+答案图1

托福阅读100篇真题练习汇总:http://toefl.zhan.com/tfziliao63739.html

托福阅读文本:

Glaciers are large masses of ice on land that show evidence of past or present movement. They

grow by the gradual transformation of snow into glacier ice.

A fresh snowfall is a fluffy mass of loosely packed snowflakes, small delicate ice crystals

grown in the atmosphere. As the snow ages on the ground for weeks or months, the crystals shrink

and become more compact, and the whole mass becomes squeezed together into a more dense

form, granular snow. As new snow falls and buries the older snow, the layers of granular snow

further compact to form firm, a much denser kind of snow, usually a year or more old, which has

little pore space. Further burial and slow cementation — a process by which crystals become

bound together in a mosaic of intergrown ice crystals — finally produce solid glacial ice. In this

process of recrystallization, the growth of new crystals at the expense of old ones, the percentage

of air is reduced from about 90 percent for snowflakes to less than 20 percent for glacier ice. The

whole process may take as little as a few years, but more likely ten or twenty years or longer. The

snow is usually many meters deep by the time the lower layers are converted into ice.

In cold glaciers those formed in the coldest regions of the Earth, the entire mass of ice is at

temperatures below the melting point and no free water exists. In temperate glaciers, the ice is at

the melting point at every pressure level within the glacier, and free water is present as small drops

or as larger accumulations in tunnels within or beneath the ice.

Formation of a glacier is complete when ice has accumulated to a thickness (and thus weight)

sufficient to make it move slowly under pressure, in much the same way that solid rock deep

within the Earth can change shape without breaking. Once that point is reached, the ice flows

downhill, either as a tongue of ice filling a valley or as thick ice cap that flows out in directions

from the highest central area where the most snow accumulates. The trip down leads to the

eventual melting of ice.

托福阅读题目:

1. Which of the following does the passage mainly discuss?

(A) The effect of glaciers on climate

(B) Damage from glaciers

(C) Glacier formation

(D) The location of glaciers

2. Which of the following will cause density within the glacier to increase?

(A) Increased water and air content

(B) Pressure from the weight of new snow

(C) Long periods of darkness and temperature variations

(D) Movement of the glacier

3. The word "bound" in line 9 is closest in meaning to

(A) covered

(B) chosen

(C) planned

(D) held

4. Which of the following will be lost is a glacier forms?

(A)Air

(B) Pressure

(C) Weight

(D) Rocks

5. According to the passage , which of the following is the LEAST amount of time necessary for

glacial ice to form?

(A) several months

(B) several years

(C) at least fifty years

(D) a century

6. The word "converted" in line 15 is closest in meaning to

(A) changed

(B) delayed

(C) promoted

(D) dissolved

7. What is the purpose of the material in paragraph three?

(A) To define two types of glaciers

(B) To contrast glacier ice with non-glacier ice

(C) To present theories of glacier formation

(D) To discuss the similarities between glacial types

8. In temperate glaciers, where is water found?

(A) Only near the surface

(B) In pools of various depths

(C) In a thin layer below the firm

(D) In tunnels

9. The word "it" in line 21 refers to

(A) formation

(B) ice

(C) thickness

(D) weight

10. It can be inferred from the last paragraph that a glacier

(A) can revert to a fluffy mass

(B) maintains the same shape throughout the glacial process

(C) is too cold to be thoroughly studied

(D) can contribute water to lakes, rivers, or oceans

托福阅读答案:

CBDABAADBD

以上就是小编为大家整理的托福阅读100篇真题练习:冰川形成的文本、题目以及答案,大家在托福阅读考试进行备考的过程当中也可以拿这些题目来进行练习,相信对于你的托福阅读考试成绩提升会很有帮助。最后,小编预祝大家托福考试能取得理想的成绩。

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