tailieunhanh - Peterson’s master toefl vocabulary part 19

In a thesaurus, words with similar meanings are grouped together. To find a synonym for a word in a traditional print thesaurus, you must use the index at the back of the book. However, new editions and online versions of a thesaurus are arranged like a dictionary in alphabetical order. | All About Prefixes OVERVIEW Prefixes Strategies for learning prefixes How prefixes work Learning words with Greek prefixes Learning words with Latin prefixes Prefixes for numbers Anglo-Saxon prefixes Summing it up PREFIXES A prefix is a form added in front of a word or word root to change its meaning. For example the prefix il means not so the word illegal means not legal. Learning prefixes will help you work out the meaning of many words you do not know in English and will help you with all parts of the TOEFL. There are more than fifty prefixes in English and you will learn most of them in this chapter. STRATEGIES FOR LEARNING PREFIXES By doing the vocabulary builders and exercises in this chapter you will familiarize yourself with the most common prefixes in English. This will enable you to recognize or guess the meanings of hundreds of words. A prefix usually changes the meaning of a word. For example the prefix inchanges the meaning of a word to the opposite. Capable means having the ability of doing or being. Incapable means not having the ability of doing or being. Prefixes are often attached to roots of words. chapter 6 Examples re act inter act trans act By knowing the prefix and the root you can work out the meaning of the word. 117 118 PART III TOEFL Vocabulary Review HOW PREFIXES WORK Prefixes Are Added to the Front of Roots to Create Many Words As you have read prefixes are placed at the beginning of a word to change its meaning. Therefore knowing just a handful of prefixes can make it easy for you to figure out many words without ever having to use a dictionary. Here are some examples with the prefix re which means to do again. NOTE Prefix Root Word Definition re absorb reabsorb absorb again re acquaint reacquaint meet again The word prefix is re qualify requalify qualify again made up of the Latin re admit readmit admit again re allocate reallocate allocate again means before and the root word fix re appear reappear appear again which means firmly re