练习题 -- 构词法 >> 派生法（前缀后缀）
共 13 题
第 1/13 题
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"Misunderstand" means ___.
正确答案: B
mis-错误。
第 2/13 题
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"Unhappy" is formed with the prefix ___.
正确答案: A
un-加在happy前。
第 3/13 题
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The opposite of "happy" is "___".
正确答案: C
un-是否定前缀。
第 4/13 题
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The opposite of "possible" is ___.
正确答案: B
im-是p前的不定前缀。
第 5/13 题
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"Teacher" is formed from "teach" + "___".
正确答案: B
teach+er=teacher。
第 6/13 题
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"Unhappy" uses the prefix "un-" meaning "not".
正确答案: A
un-是否定前缀：happy→unhappy。
第 7/13 题
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"National" is formed from "nation" + ___.
正确答案: A
nation+al→national。
第 8/13 题
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"Prepay" means ___.
正确答案: B
pre-之前。
第 9/13 题
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The suffix "-tion" changes a ___ into a ___.
正确答案: B
-tion动词变名词。
第 10/13 题
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"Rewrite" means ___.
正确答案: B
re-再/重新。
第 11/13 题
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"Careless" means ___.
正确答案: B
-less否定后缀。
第 12/13 题
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"Beautiful" is formed by adding ___ to "beauty".
正确答案: A
beauty+y→i+ful。