2021届高三英语一轮复习派生词导学案

Word Formation——Derivation Teaching aims: 1. To use suffix and prefix to build your vocabulary 2. To get familiar with the rules to enlarge your vocabulary 3. To experience a sense of achievement Teaching important and difficult points: 1. To master the method of solving problems. Teaching steps: Step one: Lead-in Message board: What is your biggest difficulty in learning English? Step two: Study the rule 1. Watch a video unhappiness + root + 2. Prefix (1) Negative prefixes Task 1: Read the following sentences and try to understand the words' meanings in bold. 1 Do you agree or disagree? 2 It is illegal to steal. 3 It is considered impolite to ask a person how much he earns. 4 This question is so difficult that I am unable to answer it. Task 2 : Fill in the blanks Prefix Meaning dis-; il-; im-; un-; in-; mis- (2) Other prefixes Task 1: Read the following sentences and try to understand the words' meanings in bold. 1 Did you preview before the class? 2 You should review what you have learned after class. Task 2: Fill in the blanks Prefix Meaning pre- re- 3. Suffix (1) Noun suffixes Task 1 : Fill in the blanks Suffix Example adj.+suffix→n. v.+suffix→n. weak→ difficult→ convenient → perform→ teach→ improve→ pollute→ (2) Adjective suffixes Task 1 : Fill in the blanks Suffix Example v.+suffix→adj. n.+suffix→adj. comfort→ differ→ music→ create→ danger→ excite→ peace→ (3) Adverb suffixes Task 1 : Fill in the blanks Rule Example adj.+ly→adv. careful→ slow→ happy→ busy→ possible→ simple→ 4. Summary Step three: Find the rule 1. Use the proper forms of given words to fill in the blanks, and then try to find the tip for each exercise. (1) Chinese New Year is a ___