TF阅读真题第841篇The Beginnings of Radar Astronomy

TF阅读真题第836篇Changes in Ancient Egyptian Art Production

A Cat's Sense of Smell     题目： Cats have sensitive noses that they use for a variety of purposes, including finding mates and identifying the territory of other cats...

题目： Gordon Childe and the Neolithic Revolution   V. Gordon Childe (1892-1957) was one of the most influential archaeologists of the twentieth century, perhaps best known f...

Extraterrestrial lmpact and Megafauna Extinctions     About 13,000 years ago, near the end of a period called the Pleistocene, North America was populated by megafauna (...

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844篇Climate Change and Species Distribution

Language and Migration 题目： The study of language can offer important clues about the historic migration of people around the world. Most historians would place the emergence o...

TF阅读真题第839篇Money in the European Middle Ages

The Key Factors Influencing Soil Formation   Soil is the product of the complex interplay of several factors. Weathering, a process that breaks down rocks by physical (mechani...