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2019-2020年外研版高中英语选修7 Module 1Basketball（Period 3）素材 Goal Learn conversion and suffix ProceduresStep 1: conversion 词性转化“Conversion” (called sometimes “full conversion”) is a word-formation process by which a word is altered from one part of speech into another without the addition (or deletion) of any morpheme. 词性转化指的是单词从一个词类转到另一个词类而不发生词形变化。1. noun verbpaperto paper the roommouthto mouth some phraseshoulderto shoulder the heavy loadbandageto bandage the leg2. verbnounto say somethingto have a say to show to give a showto feel to have a feelto leadto take a lead3. adj.verbemptyto empty the bagwrong to wrong somebodyslow to slow downbetterto better your study4. adv.verbbackto back a cardownto down a planenear to near the templeforward to forward a message5. adj. noun.calm a calm on the seahigh a new high of the industrygood a lot of goodright to tell from right to wrongStep 2: suffix 后缀构词法包括合成、派生、转化和缩写简写。词缀是派生的一部分。The basic part of any word is the root; to it, you can add a prefix at the beginning and/or a suffix at the end to change the meaning. For example, in the word “unflattering,” the root is simply “flatter,” while the prefix “un-” makes the word negative, and the suffix “-ing” changes it from a verb into an adjective (specifically, a participle).English itself does not use prefixes as heavily as it once did, but many English words e from Latin, which uses prefixes and suffixes (you can use the word affix to refer either to a prefix or a suffix) quite extensively. For example, the words “prefix,” “suffix,” and “affix” themselves are all formed from “fix” by the use of prefixes:“ad” (to) + “fix” (attached) = “affix” “pre” (before) + “fix” = “prefix” “sub” (under) + “fix” = “suffix” Note that both the “-d” of “ad” and the “-b” of “sub” change the last letter.Here are some of the most mon Latin prefixes (for the meanings of the Latin roots, look up the words in a good dictionary):ab (away) abrupt, absent, absolve ad (to) adverb, advertisement, afflict in (not) incapable, indecisive, intolerable inter (between, among) intercept, interdependent, interprovincialintra (within) intramural, intrapersonal, intraprovincialpre (before) prefabricate, preface prefer post (after) postpone, postscript, postwar sub (under) submarine, subscription, suspect trans (across) transfer, transit, translateAffixesMorphemes added to free forms to make other free forms are called affixes. There are three principle kinds of affixes: 1. prefixes (at beginning) “un-” in “unable”2. suffixes (at end) “-ed” in “walked” 3. circumfixes (at both ends) “enen” in “enlighten”(These always seem to consist of otherwise attested independent prefixes and suffixes.)
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