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 plants and animals have adapted to deserts in a number of ways. Most plant tissues die if their water content falls too low: the nutrients that feed plants are transmitted by water; water is a raw material in the vital process of photosynthesis; and water regulates the temperature of a plant by its ability to absorb heat and because water vapor l... [ 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)的相关文章
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 ]2013年4月新托福考试备考:TOEFL阅读加试题进化论分析
1. 达尔文的进化论着重强调由于环境变化什么的动植物要经过很长时间的进化才形成新物种。但有些人提出短时间内物种也能进化。有一种鱼,放在下游,还有好多predator,所以这些鱼的繁殖速度加快,baby与鱼比以前大,质量差,畸形多,所以就不会超负荷。而且长得快。放在上游,并且有很少predator,它们的繁...[ 查看全文 ]