【正文】
formation 1. Suffixes, prefixes and pound words T: What do you do when you read and e across a new word? S: I look it up in the dictionary. T: You can guess the meaning by its formation. Look at these words: careful, formation, boredom, discovery, imaginary. Do the meanings change with suffixes? No, they don’ t. The meanings remain the same. Sometimes a suffix changes a word’ s part of speech, but the meaning remains almost the same. So if you know the meaning of the root word, you can guess the meaning of the word. T: What about these words? Do the meanings remain the same? No. The meanings are changed. So sometimes a suffix or a prefix changes the meanings of words. T: And often two words put together and form a new word, a pound word, and we can guess the meanings from the two words. Some pound words have a hyphen (), such as wellknown, hardworking. 【設計意圖:引導學生歸納如何根據(jù)詞的構成猜測詞義。 2. guess the meanings of pound words and some words after putting prefixes and suffixes.