《Theme Parks》教案2

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　　Unit 5 Theme Parks
　　Grammar---教案
　　A sample lesson plan for Learning about Language
　　(Word formation)
　　Aims
　　To help students learn about word formation.
　　To help students discover and learn to use some useful words and expressions.
　　To help students discover and learn to use some useful structures.
　　Procedures
　　I. Warming up
　　Warming up by discovering useful words and expressions
　　Turn to page 35 and do exercises No. 1, 2 ,3 and 4 first. Checr answers against your ates’.
　　II. Learning about Word formation
　　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 used 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, advertisment, afflict