READING PASSAGE 3 You should spend about 20 minutes on Questions 28-40, which are based on Reading Passage 3 below.   LACK OF SLEEP LACK OF SLEEP Section A It is esti...

  READING PASSAGE 2 You should spend about 20 minutes on Questions 15-27, which are based on Reading Passage 2 below.   WORK & TRAVEL USA WORK & TRAVEL USA Do y...

READING PASSAGE 1 You should spend about 20 minutes on Questions 1-14, which are based on Reading Passage 1 below   MAIL ORDER BROCHURE     Want some grea...

Creativity   A basic question about creativity is, what factors produce it? Several contrasting answers have been proposed. Cognitive psychologists, for example, have tended t...

Degradation and Erosion of Soil Land without soil can support only very small primitive plants such as lichens and mosses that can cling onto a rock surface. The rest of the worl...

  Sunspot Cycles   Dark regions on the Sun, called sunspots, were studied in 1610 by Galileo, who turned the newly invented telescope on objects in the sky. A lively deba...

TF阅读真题第798篇Transportation and the Roman Empire

Animal Farming in the Chesapeake Colonies The Chesapeake colonies were established by English settlers near Chesapeake Bay in North America in the seventeenth century. Tobacco pr...

TF阅读真题第808篇Effects of Plate Tectonics on Species

TF阅读真题第814篇Agriculture in Colonial New England