出版时间:2009-10 出版社:群言出版社 作者:Michael A putlack 页数:241
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内容概要
《新托福考试专项进阶》系列丛书从托福考试所考查的听、说、读、写四项技能人手,为考生提供了详尽的考试指导,并将各技能分为初、中、高三级,通过独特的“进阶训练”方式,再辅以大量练习,让考生逐步掌握托福实考的技巧,同时切实提高英语实际运用能力,从而在短期内轻松取得托福高分。本丛书内容编排由易到难,循序渐进,实战性强,是不可多得的托福备考资料。 本丛书引进自韩国多乐园出版社。该社成立于1977年,在韩国英语教育出版领域始终处于领军地位。本丛书被韩国众多学校和培训机构指定为课堂教材,在托福考生中享有较高声誉。
书籍目录
Actual Test 01 Part 1I American History Instructor's Office Hours Geography Part 2 Sociology Service Encounter ChemistryActual Test 02 Part 1 Anatomy Instructor's Office Hours History Part 2 Environmental Science Service Encounter American HistoryActual Test 03 Part I Geography Service Encounter Psychology Part 2 World History Instructor's Office Hours Medical ScienceActual Test 04 Part I American History Service Encounter Literature Part 2 Physiology Instructor's Office Hours European History Part 3 Engineering Service Encounter Health & NutritionActual Test 05 Part I History Instructor's Office Hours Literature Part 2 Geology instructor's Office Hours Anthropology Part 3 Engineering Service Encounter PhysiologyHow to Score Your AnswersActual Test 01 Part 1 American History Instructor's Office Hours Geography Part 2 Sociology Service Encounter ChemistryActual Test 02 Part 1 Anatomy Instructor's Office Hours History Part 2 Environmental Science Service Encounter American HistoryActual Test 03 Part 1 Geography Service Encounter Psychology Part 2 World History Instructor's Office Hours Medical ScienceActual Test 04 Part 1 American History Service Encounter Literature Part 2 Physiology Instructor's Office Hours European History Part 3 Engineering Service Encounter Health & NutritionActual Test 05 Part 1 History Instructor's Office Hours Literature Part 2 Geology Instructor's Office Hours Anthropology Part 3 Engineering Service Encounter Physiology
章节摘录
Professor:So those are the major types of rivers in theworld.Now,as you may be swam,many rivers form deltasat their mouths.Our Mississippi River forms one of the mostrecognizable deltas in the world.The term“delta”was coinedby the Greek historian Herodctus because the shape of thedelta of the Nile River in Egypt is shaped like the Greek letterdelta.The Amazon River has the largest delta in the world,and the Yellow River[n China has the greatest sediment flow,which is very important in delta formation Sediment flow is what creatas a delta Rock is eroded bywind and water,and many of the eroded parts end up[nthe water system st some point and,eventually,in the greatrivers of the world As a river moves towsrd the ocean or alarge lake.it picks up this eroded dirt and sand When theriver reaches a large body of water,the force of the riverslows.and the sediment is deposited.The finer particlesare carried farther from the shore.and the coarser ones areheavier and fa¨to the seabed first.Thus you have a gentlestope underwater,with the heavy buildup near the rivermouth and gradually sloping down the further out it goesAs the delta grows outward,the different types of materialform layers on top of each other.Often at the bosom of thedelta there is mud,with silt on top,then fine sand,and finallycoarser sand on top.
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