托福阅读真题词汇 TPO 1

tpo51托福阅读passage1：originsofthemegaliths原文文本+真题答案

TPO51托福阅读passage1：Origins of the Megaliths原文文本+真题答案

第一篇：考古类

Origins of the Megaliths

Since the days of the earliest antiquarians, scholars have

been puzzled by the many Neolithic (~4000 .~2200 .) communal

tombs known as megaliths along

Europe's Atlantic seaboard. Although considerable variations

are found in the architectural form of these impressive

monuments, there is a general overriding similarity in design and,

particularly, in the use of massive stones.

The construction of such large and architecturally complex

tombs by European barbarians struck early prehistorians as

unlikely. The Bronze Age seafaring civilizations that lived in the

region of the Aegean Sea (~ 3000 .~ 1000 .), among whom

collective burial and a diversity of stone-built tombs were known,

托福TPO1阅读真题原文及答案翻译part3

相信备考托福的同学都知道托福TPO的重要性，为了方便大家备考，下面小编给大家整理出托福TPO1阅读真题原文及答案翻译，希望大家喜欢。

托福TPO1阅读真题原文Part3

Timberline Vegetation on Mountains

The transition from forest to treeless tundra on a mountain

slope is often a dramatic one. Within a vertical distance of just a

few tens of meters, trees disappear as a life-form and are

replaced by low shrubs, herbs, and grasses. This rapid zone of

transition is called the upper timberline or tree line. In many

semiarid areas there is also a lower timberline where the forest

passes into steppe or desert at its lower edge, usually because of

a lack of moisture.

The upper timberline, like the snow line, is highest in the

tropics and lowest in the Polar Regions. It ranges from sea level

in the Polar Regions to 4,500 meters in the dry subtropics and

3,500-4,500 meters in the moist tropics. Timberline trees are

托福阅读TPO30(试题+答案+译文)第2篇:ThePaceofEvolutionaryChange

为了帮助大家备考托福。提高阅读成绩，打有准备的仗，下面小编给大家带来托福阅读TPO30(试题+答案+译文)第2篇:The Pace of

Evolutionary Change，希望大家喜欢。

托福阅读原文

【1】A heated debate has enlivened recent studies of

evolution. Darwin's original thesis, and the viewpoint supported

by evolutionary gradualists, is that species change continuously

but slowly and in small increments. Such changes are all but

invisible over the short time scale of modern observations, and,

it is argued, they are usually obscured by innumerable gaps in

the imperfect fossil record. Gradualism, with its stress on the slow

pace of change, is a comforting position, repeated over and over

again in generations of textbooks. By the early twentieth century,

the question about the rate of evolution had been answered in

favor of gradualism to most biologists' satisfaction.

托福阅读文章分类

本分类为四大类：自然科学、生物科学、社会科学、其他学科

自然科学包括：地质学、天文学

生物科学：植物学、动物学、生态\环境学

社会科学：艺术、历史\考古学、心理\生理学、社会学

自然科学

一、地质学

冰川类

1.OG：Green Icebergs

2.TPO 15：Glacier Formation

3.TPO 19：Discovering the Ice Ages

地质类

1.OG：Desert Formation

2.OG：Geology and Landscape

3.TPO 01：Groundwater

4.TPO 03：Depletion of the Ogallala Aquifer

5.TPO 07：The Geologic History of the Mediterranean

6.TPO 12：Water in the Desert

7.TPO 20：Fossil Preservation

8.TPO 21：Geothermal Energy

9.TPO 24：Lake Water

10. TPO 27: The Formation of Volcanic Islands

11. TPO 29: The History of Waterpower

二、天文学

火星类

1.TPO 08：Running Water on Mars

2.TPO 25：The Surface of Mars

其他行星类

1.TPO 16：Planets in Our Solar System

2.TPO 22：The Allende Meteorite

生物科学

一、植物学

1.Sample：Opportunity and Competitors

2. TPO 01: Timberline Vegetation on Mountains

3.TPO 05：Minerals and Plants