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1、Unit 4 I used to be afraid of the dark.【学习目标】掌握重点句型:Mario, you used to be short, didn, t you? Yes, I did.He used to wearShe used to have.掌握重点短语和单词：used to do sth. humorous, si lent, helpful, from time to time, score.【自主梳理】used to do sth.过去经常humorous幽默的silent沉默的helpful有用的fjrom time to time 时常score得分【
2、重点领悟】1熟记重点单词短语。2正确使用used to1. I used to be short when I was young.我年轻时个子很矮。2. 一Did you use to have straight hair?你过去是直发吗？Yes, I did.是的。【探究提升】1 .本单元主要内容是学会used t。结构。Used tQ +动词原形表示过去经常、以前常常，只用于过去式中，用来表示现在己不存在的习惯或状态。例如：They used to play football together.他们过去常在一起蹋足球。（现在不在一 起踢了）2 . used to的疑问形式和否定形式为Di
3、d you use to？和I didn t use to也可以用 Used you to？和I used not to但现在多使用前者。1. Did. Mario used to be short?Yes, he did. Now he is tall.2. I used to eat candy all the time, dicin t you?Yes, I did. And I used to chew gum a lot.【巩固训练】used to 用法【例】My uncle used to go to work on foot.我叔0叔过去常常步行去上班。总结：used to意为“
4、过去常常”，暗指现在己经不存在的动作或状态，后接动词原形。句式【练习】按要求改写句子。1. I used to be afraid of the snakes.（改为否定句）1. to be afraid of the snakes.2. He used to be really friendly.（改为一般疑问句） he to be really friendly?3. Did you use to play soccer after school?（作否定回答） No,.4. I used to go to school by bus.（对划线部分提问） you to go to scho
5、ol?5. They used to play basketball on the playground.（改为反意疑问句） They used to play basketball on the playground,?【重点提示】1 .否定句used to的否定式通常为didn t use too如：She didn t use to have long hair.2 . 一般疑问句含有used to的句子变为一般疑问句时，可用“助动词Did+主语+use to do sth. ?” 结构。肯定回答用Yes, sb. did；否定回答用No, sb. didn t。如：Did you us
6、e to play the piano? -Yes, I did. /No, I dicin t.3 .特殊疑问句含有used to的特殊疑问句的结构为“疑问词+助动词did+主语+use to do.。如:-What did you use to do? -I used to collect stamps.4 .反意疑何句如果陈述部分含一有used to,附加疑问部分通常使用助动词did来引导。如：The house used to be a shop, didn t it?辨析【练习】根据句意，选择合适的短语，并用其正确形式填空。used t-o/be used to6. The big
7、box hold books and magazines.7. He send e-mails to me, but he doesn t this8. My grandpa going for a walk after dinner.9. The students swim on weekends, did they?10. I getting up early.【重点提示】1. be (get, become) used to doing sth.意为“习惯于做某事“如:She has been used to living here.她已经习惯住在这里了。2. be used to do sth.意为“被用于做某事“。如：Wood can be used to make paper.木头能用来造纸。【参考答案】1. didn t use 2. Did; use 3. L didn t 4. How5. didn, t they6. is used to7 used to 8.year.did; useis used to9. dicin t use to10. am used to 【学习反思】