Unit 4 I used to be afraid of the dark 语法using used to+ verb 教案

学科 英语 年级/册 九年级全一册 教材版本 人教版
课题名称 Unit 4 I used to be afraid of the dark.
难点名称 To listen and talk about how people have changed using used to+ verb.
难点分析 从知识角度分析为什么难 知识点需要熟练运用 used to描写过去现在的变化，难点在于后面接动词原形，描写人的外貌时，什么时候用be,什么时候用实意动词，学生容易出错。
从学生角度分析为什么难 学生容易惯性思维，在用used to 时习惯全用be，尤其是描写人的头发，he used to have short hair.写成he used to be short hair.否定疑问句要注意used 变成use，反义疑问句要用did提问。
难点教学方法 1.通过图片展示对比人们过去和现在的变化，学习新句型。 2.通过幻灯片学习肯定否定，疑问，反义疑问句的结构。 3.通过习题进一步巩固知识点。
教学环节 教学过程
导入 T：Who is he （show a picture of Doraemon） Ss:He is Doraemon. T:What can he do Ss: He can go to the past with his time machine T:What is he like (show a picture of Zhang Yishan) Ss:He is thin and tall.He has short hair. T:let's go back to the past and find out:What was he like He was short. He used to be short. He had long hair. He used to have long hair. 注意高矮胖瘦用be动词，头发用have。
知识讲解 （难点突破） Step1 (show a picture of Yang Zi) T:What is she like Ss：she is tall . T:What was she like Ss：She was short. She used to be short. (show a picture of You Haoran) T:What is he like Ss：He is heavy. T:What was he like Ss：He was thin. He used to be thin. （展示used to 的肯定句） Step 2 Fill in the chart with words to describe people. Appearance: tall/ short medium height straight / curly hair long / short hair heavy/ thin young/ old Personality: outgoing funny helpful cute kind friendly confident Step 3 (show the pictures and talk about how people have changed) T:What did he use to be like A:He didn't use to wear glasses. B:But now he wears glasses. T:What did she use to be like A:She didn't use to have black hair .（展示used to 的否定句） B:But now she has black hair. T:What did you use to be like A:You used to be silent, didn't you B:Yes, I did. T:What did she use to be like A:She used to play the guitar, didn't she （展示used to 的反义疑问句） B:No, she didn't. She used to sing. T:What did he use to be like A:Did he use to play basketball B:No, he didn't.He used to listen to music. T:What did she use to be like A:Did he use to read books B:No, he didn't.He used to play computers. （展示used to 的一般疑问句） Step 4 Explanation used to意为“过去常常”，用于表示过去习惯性的动作或存在的状态（强调与现在的对比，暗示现在不做了）。其中to为不定式符号，后跟动词原形。used to只用于一般过去时态，没有人称和数的变化。 肯定：主语+used to+动词原形 否定：主语+didn't use to+动词原形 一般疑问句: Did +主语+use to+动词原形 反义疑问句：主句+didn't +人称代词
Task 1 火眼金睛 She used to be ____________(矮), but now she is _____________(高) . She used to have _____________(短直)hair , but now she has _______________(长卷) hair. she used to _______________(弹钢琴), but now she ________________(打网球). Task 2 1. — _____ Mike _____ wear a pair of glasses — Yes, he did. He has been short-sighted for many years. A. Is; used to B. Is; used C. Did; use to D. Did; used 2.Your father used to eat meat, ___________ A. did you B. didn’t you C. didn’t he D. did he 3.—How does Mr.Depp go to work —He_____ to work by car, but now he takes a bus. A. used to go B. used to going C.is used to go D. is used to going Task 3 1.我过去很内向。I_______ _______ _______ _______ . 2. Mary过去留长头发。Mary _______ _______ _______long hair. 3.他过去不带眼镜。He_______ _______ _______ _______glasses. 4.他过去很矮，不是吗？He_______ _______ _______short, _______ _______ 5.她过去很瘦，但是现在很胖。She_______ _______ _______thin, but now she _______ _______ . Task 4 1. Her cousin used to watch TV on Mondays. (改为否定句) Her cousin _______ _______ _______ watch TV on Mondays. 2. The boy used to collect coins. (改为一般疑问句) _______ the boy _______ _______collect coins 3. Bill used to dislike Chinese and history. (就划线部分提问) _______ _______Bill _______ to dislike 4. They used to enjoy shopping on weekends.(改为反义疑问句) They used to enjoy shopping on weekends，_______ _______ 5.She didn’t use to go fishing. (改为肯定句) She _______ _______ go fishing.
小结 Talk about how people have changed using used to+ verb. 肯定：主语+used to+动词原形 否定：主语+didn't use to+动词原形 一般疑问句: Did +主语+use to+动词原形 反义疑问句：主句+didn't +人称代词