Unit 2 Exploring English The Use of “Negative Prefixes” in Word Formation 教案 -2022-2023学年高中英语外研版必修第一册

2023-05-23
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Unit2 Exploring English The Use of “Negative Prefixes” in Word Formation教案 高中英语外研版必修第一册 I. 教学内容 构词法--派生法中的否定前缀 II. 教学目标 By the end of the class, students are able: 1. come up with the five most widely used negative prefixes and list some examples. (列举5个最常用的否定前缀以及至少4个例子) 2. Summarize the allomorphs of the negative prefix—“in-”(im-; ir-; il-) by observing certain examples.(通过观察得出否定前缀:“in-”的另外3个变体 im-,ir-,il; 并且能够举一反三;) 3. Tell the differences between “ un- ” and “in-” in certain usage.(关注特殊用法“un-”和“in-”在同根形容词和名词中的区别;以及部分“ful-”结尾的形容词的否定为“-less”) III. 教学重难点 Summarize the allomorphs of the negative prefix—“in-”(im-; ir-; il-) by observing certain examples.(通过观察得出否定前缀:“in-”的另外3个变体 im-,ir-,il; 并且能够举一反三;) IV. 教学过程 Step 1 Review the major ways of word formation and introduce the focus of this class. 1. abbreviation 缩略法 2. conversion 转化法 3. derivation 派生法 4. compounding 合成法 其中derivation 派生法是通过增加前缀(prefixes)和后缀(suffixes)来构成新的词汇;本节课我们聚焦否定前缀。 Step 2 Summarize the 5 most widely used negative prefixes and come up with some examples. 1. un- : adj.& v.& adv unlucky; unpopular; unnecessary; unsure; unlock;unfortunately… 2. non-: n.& adj. non-existence; non-essential; non-electrical; non-violent ;non-smoker; non-profit… 3. dis-: adj.& n.& v dislike; disagree; discover; disadvantage; dishonest; disappear… 4. mis-: v.& n. misjudge; misunderstand; misdeed; mislead; misfortune;misspell… 5. in-: adj.& n.& adv inhuman ; incorrect; indirect ;inaccurate; inconsistently … Step 3 Special usage of “in-” 1. 由于音同化的影响,还有其它3种词素变体(allomorph):il-(字母l前), im-(字母m,p,b前)和ir-(字母r前). impossible impolite; improper; imbalance; immeasurable; irregular; irresistible; irresolvable; illogical; illegal; 练习: purity -- impurity; rational -- irrational; literate -- illiterate; moral -- immoral ; relevant --irrelevant; legible --illegible; 2. im/in开头的单词不再用in-而是用un-. influential; informative; important; imaginable; uninfluential; uninformative; unimportant; unimaginable; 练习: unintelligent; uninterested; u

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Unit 2 Exploring English The Use of “Negative Prefixes” in Word Formation 教案 -2022-2023学年高中英语外研版必修第一册
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Unit 2 Exploring English The Use of “Negative Prefixes” in Word Formation 教案 -2022-2023学年高中英语外研版必修第一册
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Unit 2 Exploring English The Use of “Negative Prefixes” in Word Formation 教案 -2022-2023学年高中英语外研版必修第一册
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