2013年4月托福考试辅导：toefl阅读模拟试题第三套（1）
Spartina Spartina alterniflora, known as cordgrass, is a deciduous, perennial flowering plant native to the Atlantic coast and the Gulf Coast of the United States. It is the dominant native species of the lower salt marshes along these coasts, where it grows in the intertidal zone (the area covered by water some parts of the day and exposed others). These natural salt marshes are among the most productive habitats in the marine environment. Nutrient-rich water is brought to the wetlands during each high tide, making a high rate of food ... [ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第三套（1）的相关文章
2013年4月托福考试辅导：toefl阅读模拟试题第二套（3）
The Evolutionary Origin of Plants Paragraph 1 The evolutionary history of plants has been marked 1 a series of adaptations. The ancestors of plants were photosynthetic single-celled organisms that...[ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第二套（2）
The Decline of Venetian Shipping Paragraph 1 In the late thirteenth century, northern Italian cities such as Genoa, Florence, and Venice began an economic resurgence that made them into the most im...[ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第二套（1）
The Surface of Mars Paragraph 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 ve...[ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第一套（3）
Sumer and the First Cities of the Ancient Near East PARAGRAPH 1 The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the...[ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第一套（2）
Survival of Plants and Animals in Desert Conditions PARAGRAPH 1 The harsh conditions in deserts are intolerable for most plants and animals. Despite these conditions, however, many varieties of pla...[ 查看全文 ]2013年4月托福考试辅导：toefl阅读模拟试题第一套（1）
Energy and the Industrial Revolution PARAGRAPH 1 For years historians have sought to identify crucial elements in the eighteenth-century rise in industry, technology, and economic power Known as th...[ 查看全文 ]
