本书在第三版的基础上增加60%以上的内容，并新增《新词补编》，精选新词约3000个，并附有国际音标和240项说明新词来源或用法的附注。共收词及词组60000条，有6500新条目。示例共83100项，绝大部分都是新增加的。习语和短语动词共12800项，均设有互相参照条目。新设立200项专题处理的语法或困难词语用法说明。全新插图共182项，均有译文对照。 本书内容全面，形式新颖，编排合理，查阅简便，是一册极适合于中学生及大学生以及翻译工作者的使用。

与其他同类英语词典相比，本词典突破了传统词典长期沿袭的体例和模式，更具创新性、可讯性和实用性，其特点具体体现在： 一、全部语料采自6亿4500万词的语料库Bank of English。本词典共收录75，000余条例证，全部来源于该语料库，因而更真实、可靠、自然；同时语料库内容的不断更新保证了本词典对当代英语进行忠实全面的描述。 二、释义方式利树一帜，采用整句释义。本词典一改以往词典的释义方式，将110，000条释义全部纳入自然流畅的完整句子中，描述出词汇使用的真实语境，使学习者对词汇的语义和用法一目了然。这种创新性的释义方式得到很多词典专家的高度评价，并为其他许多词典竞相效仿。此外，本词典还将释义词汇限定在2，500个常用词汇以内，清晰易懂，高中程度以上的读者即中轻松阅读。 三、增为附加栏，集中提供有关词频、语法、搭配、同义词和反义词，语域和语用等多方面的信息，版面清晰，方便读者快速查找释义、例证和与其相关的使用信息。 四、对常用词语给予特殊关注。创新地以3个菱形符号的方式提供词目的词频信息，标注出其使用频率，更有利于读者掌握鲜活地道的英语。 这部词典以庞大的语料库为依托，提供了对当代英语权威、全面的描述，具有不同于其他传统词典的创新优势。对于广大中国英语学习者而言，实为案头必备工具书。

Amazon.com The latest edition of the American Heritage Dictionary is out, and that's hot news--not just for the resolute followers of lexicographical minutiae, but for the general reading and writing public as well. Why? Because the American Heritage is a long-standing favorite family dictionary (never underestimate the value of pictures) and one of the prime dictionary references for magazines, newspapers, and dot.com content providers. For scads of writers and editors across the U.S., it sets the standard on matters of style and lexicographical authority. So this new edition is exciting and noteworthy, but how good is it? In its favor, the fourth edition is as current a dictionary as you can get. It's six years fresher than the 1994 version, with 10,000 words and definitions you won't find in the still venerable but now slightly dated third edition. For example, unlike its predecessor (and also unlike the 1996 Oxford Encyclopedic English Dictionary), this fourth edition covers dot-com, e-commerce, and soccer mom, Ebonics, Viagra, and a surf definition for cruising television channels and the Internet. Its panel of special consultants includes authorities on anthropology, architecture, cinema, and law, plus military science, music, religion, and sports, and that is reflected in an impressively comprehensive coverage of the arts, culture, and technology. Sadly, however, there are no medical consultants on the panel, and that loss is felt in some substandard medical definitions. Other flaws: there's a greater than usual tendency to define a word with a form of the same word--for example, fuzzy, whose first two definitions are "1. covered with fuzz." and "2. of or resembling fuzz." And some definitions seem needlessly wordy, such as the entry for furious, which is "full of or characterized by extreme anger; raging." Compare that with the more succinct Oxford Encyclopedic entry: "1. extremely angry. 2. full of fury." On the other hand, there are valuable entries throughout the dictionary supplying additional information on synonyms, usage, or word history, and these extras, such as the history of diatribe and the usage notes on discomfit, are interesting. The layout is easy on the eyes, with dark blue/green bold type setting the words apart from their definitions, and 4,000 color photographs, maps, and illustrations that are both useful and delightful. On one page, the margin provides color depictions of Francis Bacon, bacterium, and a Bactrian camel. Theodore Roosevelt and a rooster share another margin, while a third page offers Isak Dinesen, a dingo, and dinoflagellate. It is a fascinating book to peruse, and a compellingly scholarly addition to the American Heritage Dictionary line. --Stephanie Gold --This text refers to an out of print or unavailable edition of this title. From Booklist Ever since the furor in the U.S. that greeted Webster's Third New International Dictionary (1961) faded, it has become a given that dictionaries should be descriptive rather than prescriptive, a principle sanctified in Britain in the 1850s in Herbert Coleridge's original plan for the monumental project that eventually produced the Oxford English Dictionary. That dictionaries grow by gradual accretion of new words and new senses characterizes the latest edition of the American Heritage Dictionary (AHD), even if it, more than any other contemporary English-language dictionary, flirts with prescriptiveness in some of its usage notes.Reflecting trends in society since publication of the third edition (1992), the most visible additions to the lexicon come from technology. Hence AHD now includes the sense of dot as a synonym for period in computer jargon; a new techie sense for geek; and new entries for dot-com, e-commerce, HTML, HTTP, and URL. These are but a few of the 10,000 new senses or terms incorporated into this edition. Others (e.g., goth, personal watercraft, transgendered) come from the fields of pop culture, entertainment, sports, and business, to name a few.AHD shows two other, much more visible signs of its times. First, the thumbnail marginal illustrations have been transformed from black-and-white to color. This increases their clarity, their utility, and the value they add to definitions. Second, it comes in both print and CD-ROM formats.The CD-ROM (for Windows 95 through 2000 and NT and available for $24.95 if purchased alone) offers content almost identical to that of the print volume and many added features. Some of the illustrations in the print edition are absent from the CD (e.g., mackinaw). This is a small sacrifice for the far greater gains, one of which relates to illustrations. A search feature allows users to display only those terms that contain illustrations, and when any of these is displayed, its thumbnail illustration can be enlarged, offering even greater clarity than the color thumbnails on paper.Other features of the CD-ROM make it an attractive alternative to print, especially for personal use in situations in which it can reside more or less permanently on a PC's CD-ROM drive. A running list of entries in a frame to the left of the display window provides, with much greater precision than the printed dictionary's thumb indexing, quick access to a letter's section. In addition to the word search and A-Z scrolling display of all entries in that left-side window, the window's contents can be limited to display usage notes (usage, synonym, word histories, regional notes), Indo-European roots, Semitic roots, or (as noted) entries containing images. Most entries on the CD-ROM also include an audio icon that, when clicked, plays the word's pronunciation in an audible voice (for some words that of a male, for others that of a female). Just as the Webster's Tenth Collegiate Dictionary allows a toolbar link from Microsoft Word to the dictionary's contents, AHD provides this linkage through a right-mouse click.One other feature demonstrates the dictionary's sense of its times in the age of Internet filters and Dr. Laura controversies: when loading the CD-ROM, the user is asked whether to load the dictionary to include or exclude access to "vulgar" words. This is a latter-day sign of AHD's long willingness to apply usage labels more freely than most of its competitors. Taken by themselves, its usage labels (e.g., "slang," "vulgar") unquestionably appear to be prescriptive. However, when viewed in the context of the dictionary's usage notes, they soften and take on nuance. The usage notes depend heavily upon a large panel of writers and commentators representing diverse views. (What other group can claim both Harold Bloom and Roy Blount Jr and both Antonin Scalia and David Sedaris as members?) The notes convey the panel's uncertainties, disagreements, and qualifiers about how the words are and ought to be used. On the whole, AHD takes an old, inherently prescriptive dictionary device and uses it to describe the majority and minority opinions of a group of facile users of the language. A new category of notes, "Our Living Language," explains how language changes, for example, the reasons why the Ocracoke Island brogue is fading and the attempts to come up with euphemisms for the euphemism downsize. Approximately 1,800 notes of various sorts provide more context and more description than mere labels.When it comes to the things that users turn to a dictionary for most often--definitions, confirmation of spelling, pronunciation--AHD delivers as well as any other respected, respectable desk dictionary. Its definitions are clear and succinct, and they differentiate among senses of a word. Illustrations of words in sentences enhance selected definitions. A pronunciation key on every two-page spread of the print version is the next best thing to the audio on the CD-ROM.AHD long ago established itself as one of the standard American English dictionaries. Its improvements through expansion, refinement, and extension to the CD-ROM medium ensure its vitality and its value to a broad audience, from junior high on. RBB Copyright © American Library Association. All rights reserved --This text refers to an out of print or unavailable edition of this title.

学生实用英语高考必备（最新修订版），ISBN：9787500627791，作者：刘锐诚主编