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[托福阅读TPO] 托福阅读TPO28(试题+答案+译文)第1篇:Groundwater
【1】Most of the world’s potable water—freshwater suitable for drinking is accounted for by groundwater, which is stored in the pores and fractures in rocks.2014-10-18 编辑：alice
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[托福阅读TPO] 托福阅读TPO28(试题+答案+译文)第2篇:Early Saharan Pastoral
【1】The Sahara is a highly diverse, albeit dry, region that has undergone major climatic changes since 10,000 B.C. As recently as 6,000 B.C. the southern frontier of the desert was far to the north o..2014-10-19 编辑：alice
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[托福阅读TPO] 托福阅读TPO29(试题+答案+译文)第1篇:Characteristics of Rom
【1】The pottery of ancient Romans is remarkable in several ways. The high quality of Roman pottery is very easy to appreciate2014-10-21 编辑：alice
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[托福阅读TPO] 托福阅读TPO29(试题+答案+译文)第2篇:Competition
【1】When several individuals of the same species or of several different species depend on the same limited resource, a situation may arise that is referred to as competition.2014-10-22 编辑：alice
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[托福阅读TPO] 托福阅读TPO29(试题+答案+译文)第3篇:The History of Waterpo
【1】Moving water was one of the earliest energy sources to be harnessed to reduce the workload of people and animals. No one knows exactly when the waterwheel was invented2014-10-23 编辑：alice
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[托福阅读TPO] 托福阅读TPO30(试题+答案+译文)第1篇:Role of Play in Develo
【1】Play is easier to define with examples than with concepts. In any case, in animals it consists of leaping, running, climbing, throwing, wrestling, and other movements, either along, with objects,..2014-10-24 编辑：alice
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[托福阅读TPO] 托福阅读TPO30(试题+答案+译文)第2篇:The Pace of Evolutiona
【1】A heated debate has enlivened recent studies of evolution. Darwin's original thesis, and the viewpoint supported by evolutionary gradualists2014-10-25 编辑：alice
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[托福阅读TPO] 托福阅读TPO30(试题+答案+译文)第3篇:The Invention of the M
【1】In Europe, before the introduction of the mechanical clock, people told time by sun (using, for example, shadow sticks or sun dials) and water clocks.2014-10-26 编辑：alice
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[托福阅读TPO] 托福阅读TPO31(试题+答案+译文)第1篇:Speciation in Geograph
【1】Evolutionary biologists believe that speciation, the formation of a new species, often begins when some kind of physical barrier arises and divides a population of a single species into separate ..2014-10-27 编辑：alice
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[托福阅读TPO] 托福阅读TPO28(试题+答案+译文)第3篇:Buck Rubs and Buck Scr
【1】The Sahara is a highly diverse, albeit dry, region that has undergone major climatic changes since 10,000 B.C. As recently as 6,000 B.C. the southern frontier of the desert was far to the north o..2014-10-20 编辑：alice
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[托福阅读TPO] 托福阅读TPO31(试题+答案+译文)第2篇:Early Children Educati
【1】Preschools—educational programs for children under the age of five—differ significantly from one country to another according to the views that different societies hold regarding the purpose of e..2014-10-28 编辑：alice
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[托福阅读TPO] 托福阅读TPO32(试题+答案+译文)第2篇:Siam,1851-1910
【1】In the late nineteenth century, political and social changes were occurring rapidly in Siam (now Thailand).2015-10-31 编辑：alice
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[托福阅读TPO] 托福阅读TPO32(试题+答案+译文)第1篇:Plant Colonization
【1】Colonization is one way in which plants can change the ecology of a site. Colonization is a process with two components: invasion and survival.2014-10-30 编辑：alice
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[托福阅读TPO] 托福阅读TPO31(试题+答案+译文)第3篇:Savanna Formation
【1】Located in tropical area at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered tree or shrubs.2014-10-29 编辑：alice
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[托福阅读TPO] 托福阅读TPO25(试题+答案+译文)第1篇:The surface of Mars
【1】The surface of Mars shows a wide range of geologic features, including huge volcanoes-the largest known in the solar system-and extensive impact cratering. Three very large volcanoes are found on..2014-10-09 编辑：alice
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[托福阅读TPO] 托福阅读TPO27(试题+答案+译文)第2篇:The Formation of Volca
【1】Earth’s surface is not made up of a single sheet of rock that forms a crust but rather a number of “tectonic plates” that fit closely2014-10-16 编辑：alice
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[托福阅读TPO] 托福阅读TPO33(试题+答案)第1篇:最初的文明
【1】Evidence suggests that an important stimulus behind the rise of early civilizations was the development of settled agriculture2015-11-02 编辑：alice
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[托福阅读TPO] 托福阅读TPO32(试题+答案)第3篇:热带蜂群的分布
【1】In 1977 ecologists Stephen Hubbell and Leslie Johnson recorded a dramatic example of how social interactions can produce and enforce regular spacing in a population.2015-11-01 编辑：alice
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[托福阅读TPO] 托福阅读TPO33(试题+答案)第2篇:铁路和商品化农业
【1】By 1850 the United States possessed roughly 9,000 miles of railroad track; Ten years later it had over 30,000 miles,2015-11-03 编辑：alice
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[托福阅读TPO] 托福阅读TPO33(试题+答案+译文)第3篇:灭绝事件
【1】It was not until the Cambrian period, beginning about 600 million years ago, that a great proliferation of macroscopic species occurred on Earth and produced a fossil record that allows us to tra..2015-11-04 编辑：alice
