初中英语九年级全册Unit4Iusedtob单元同步语法精讲精练课件 人教新目标版 10页

Unit 4　I used to be afraid of the dark. 第三课时　(Grammar Focus4c)—单元同步语法精讲精练 used to的用法 ►概念：used to用来表示过去的习惯、动作或状态， 但现在已不发生或不存在了，意为“过去常常”，后接动词原形。 ►句型结构 ①否定句：used to的否定句形式为didn't use to或usedn't to。 eg：The little boy didn't use to study hard.这个小男孩过去学习不努力。 ②一般疑问句：含有used to的句子变成一般疑问句时，可用“助动词Did＋ 主语＋use to do sth.？”或“Used＋主语＋to do sth.？”结构。肯定回答用 Yes，sb. did；否定回答用No，sb. didn't。 eg：—Did your father use to go to work on foot？你父亲过去步行上班吗？ —Yes，he did./No，he didn't.是的，他是。/不， 他不是。 ③特殊疑问句：含有used to的特殊疑问句的结构为“特殊疑问词＋助动词 did＋主语＋use to do...？”。 eg：—What did you use to do？你过去常做什么？ —I used to collect stamps.我过去常收集邮票。 ④ 反 意 疑 问 句 ： use d to的 反 意 疑 问 句 可 由 “ did/ us e d＋ 主 语 ” 或 “didn't/usedn't＋主语”构成，遵循“前肯后否、前否后肯”的原则，主 语一般用代词。 eg：Bob used to like pop music，didn't he/usedn't he？鲍勃以前喜欢流行音 乐，是吗？ The students didn't use to play soccer，did they？学生们过去不踢足球，不 是吗？ ►拓展相关知识 ①be used to (doing) sth.“习惯于(做)某事”，在此结构中，to为介词，后接名 词或动词ing形式。 eg：Are you used to the life in the North China？你习惯中国北方的生活吗？ I am used to getting up early.我习惯早起。 ②be used to do sth.“被用来做某事”，属于被动语态形式。 eg：A bookshelf is used to store books.书架被用来储藏书。 一、单项选择。 (　)1.Our city is cleaner than it ________ be.(2019，庆阳) A．is used to　　　　　　　　B．used to C．uses to D．is used (　)2.Yao Ming，a basketball giant，________ water polo when he was young.(2019，镇江) A．is playing B．used to play C．is used to playing D．was playing B B (　)3.—My father ________ to his workplace by bus， but now he ________ there by bike.(2019，安顺) —Really？You have an environmentallyfriendly father. A．used to go；is used to go B．used to going；is used to go C．is used to go；is used to going D．used to go；is used to going D 二、按要求完成下列句子。每空一词。 4．Linda used to be shy.(改为一般疑问句) ________ Linda ________ to be shy? 5．Tom used to wear glasses.(改为否定句) Tom ________ ________ to wear glasses. 6．Susan used to be outgoing．(对画线部分提问) ________ ________ Susan ________ to be? 7．He walked to school every morning in the past.(改为同义句) He ________ ________ walk to school every morning. Did use didn't use .How did use used to 本课时其他知识点精讲精练 ►give a speech意为“作演讲”，相当于give a talk. ►in public意为“公开地；在别人(尤指生人)面前”，相当于in public places。 一、根据句意及提示完成下列句子。每空一词。 1．My sister Lucy is interested in ________ (英国的) culture. 2．We can see two ________ (Africa) lions in the zoo. 3．These behaviors (行为) are polite for ________ (Europe). British African Europeans 二、根据汉语意思完成下列句子。每空一词。 4．昨天下午他们邀请他作了一个演讲。 Yesterday afternoon they invited him to ________ ________ ________． 5．玛丽当众讲话时总是很自信。(2019，葫芦岛) Mary is always confident when she speaks ________ ________． give a speech in public