By providing instruction and practice of the 20 most troublesome grammar points, Top 20 helps students master the essential grammar they need to produce great writing at the intermediate to advanced levels.

Description are not available

Once signed languages are recognized as natural human languages, a world of exploration opens up. Signed languages provide a powerful tool for investigating the nature of human language and language processing, the relation between cognition and language, and the neural organization of language. The value of sign languages lies in their modality. Specifically, for perception, signed languages depend upon high-level vision and motion processing systems,... more...

This very popular pronunciation practice book is for intermediate and more advanced students of English who wish to improve their pronunciation and listening comprehension. The material can be used in class or by learners studying individually, using the Audio recordings. The practice material is illustrated by amusing cartoons throughout the book.

In most cases, every chemist must deal with solvent effects, whether voluntarily or otherwise. Since its publication, this has been the standard reference on all topics related to solvents and solvent effects in organic chemistry. Christian Reichardt provides reliable information on the subject, allowing chemists to understand and effectively use these phenomena. ? 3rd updated and enlarged edition of a classic . 35% more contents ? excellent, proven... more...

Since 1965, Donald Ayers' English Words from Latin and Greek Elements has helped thousands of students to a broader vocabulary by showing them how to recognize classical roots in modern English words. Its second edition, published in 1986, has confirmed that vocabulary is best taught by root, not rote. The importance of learning classical word roots is already acknowledged by vocabulary texts that devote chapters to them. Why a... more...

Get the intensive practice and instruction you need to speak German with confidence! When it comes to learning a new language, practice does make perfect. This comprehensive, easy-to-use guide covers all aspects of German grammar, including present tense regular verbs, adverbs, and adjectives. Packed with crystal-clear explanations, numerous realistic examples, and dozens of engaging exercises, Practice Makes Perfect: Complete... more...

Cambridge IELTS 10 contains four authentic IELTS past papers from Cambridge English Language Assessment, providing excellent exam practice. The Student's Book with answers allows students to familiarise themselves with IELTS and to practise examination techniques using authentic tests. It contains four complete tests for Academic candidates, plus extra Reading and Writing modules for General Training candidates. An introduction to these modules is... more...

Rhodium has proven to be an extremely useful metal due to its ability to catalyze an array of synthetic transformations, with quite often-unique selectivity. Hydrogenation, C-H activation, allylic substitution, and numerous other reactions are catalyzed by this metal, which presumably accounts for the dramatic increase in the number of articles that have recently emerged on the topic. P. Andrew Evans, the editor of this much-needed book, has... more...

The new edition of this popular study guide makes learning German grammar much easier than with the usual textbook. Grasp of this challenging language is eased with clear explanations backed up with plenty of concrete examples. This edition features a new verb chart, a new section on the sounds of German, updated vocabulary, and a cross-referenced index. Exercises with answers offer a proven-effective way to reinforce learning and help make... more...