北师大版高中英语选修六第9讲：Unit18 Beauty-语法篇（学生版）.docxVIP

Unit 18 Beauty 语法篇____________________________________________________________________________________________________________________________________________________________________掌握并区分used to与would的区别和用法。掌握限定词的区别和用法。一. used to和would1. used to的用法used to意为“过去常常”， 其中to是动词不定式符号，后面接动词原形，表示过去经常性或习惯性的动作但现在已经结束，只能用于一般过去时，含有较强的“今昔对比”的意味。I used to enjoy gardening, but I don’t have time for it now. 我过去喜爱园艺，但现在没时间弄了。误区警示：①在疑问句中或否定句中，可以有两种形式。Used you to go to the same school?= Did you use to go to the same school? 你们曾经就读同一所学校吗？He usednt to smoke. = He didnt use to smoke. 他过去不经常抽烟。②在反意疑问句和简略答语中也有两种形式。John used to be a policeman, didnt he?= John used to be a policeman, usednt he? 约翰过去是名警察，是吗？---Used you to go to school in Australia? 你曾经在澳大利亚上过学吗？---Yes, I did./ Yes, I used to. 是的，我上过。2. would的用法①would是will的过去式，表示过去的“意志、意愿”，可用于多种人称。They said that they would help us. 他们说他们愿意帮助我们。I promised that I would do my best. 我答应我会尽我所能。②would指的是现在的时间时，表示说话人的意愿或向对方提出请求，语气比will委婉，也可表示委婉地提出看法、请求、建议等。I would like to have a try. 我想试一试。Would you like me to carry it for you? 我帮你拿好吗？Im afraid the journey would be too expensive. 我恐怕这次旅行的费用太高了。③表示过去反复发生的动作或过去的一种倾向。On Sundays he would come and work with us those days. 那些日子每到星期日他总会来和我们一起劳动。On summer evenings they would sit out in the garden. 夏天的晚上他们经常坐在外面的花园里。④用在虚拟语气中。If you had come earlier, you would have seen him. 如果你早来一点儿，你就能见到他。3. used to与would的用法比较①相同点：两者都表示过去习惯性或经常性的动作或行为，常可换用。When we were children, we used to/would go skating every winter. 我们小时候每年冬天都去滑冰。②不同点：a. would主要表示与过去另一段时间相比，常与表示过去的时间状语连用，意为“总要，总是”；used to主要表示与现在的时间相比，意为“过去常常”。He would come to me when he was in trouble. 他有困难时总是来找我。I used to get up early. 我以前经常早起。（现在不早起了）b. used to还可与状态动词连用，表示过去的状态，而would则不可以。She used to be a quiet girl. 她以前是个文静的女孩。不可以说：She would be a quiet girl.c. would表示过去反复的动作，如果某一动作没有反复性，只能用used to。He was so busy that he would work into the night. （具有反复性）他过去很忙，以至于总是工作到深夜。I used to live in Beijing. （没有反复性）我过去住在北京。二. 限定词概念和功能种类例词和例句限定词用于名词的前面,限定名词所指的范围,表示该名词是特指还是泛指,是定量还是不