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1、Unit 4 语法篇_熟练掌握本章重点语法知识。used to do sth. 用法小结1.used to do sth. 表示“过去常常做某事” ，只表示过去和现在对比，暗示现在不做了。 to 为动词不定式符号，后接动词原形。eg ：He used to go to school at six o clock. 他过去常常六点去学校。2. used to do sth. 的否定形式：usedn t to do sth.主语+ used not to do sth.didn t use to do sth.eg; He used to watch TV all day. 他过去常常整天看电视。
2、He usedn t to watch TV all day.He didn t used to watch TV all day. 他过去不常常整天地看电视。注意： usednt= used not3. used to do 的疑问形式及其答语：(1)Used+ 主语 to do. ？回答： Yes，sb. used to. N o，sb. usedn t to.eg ：Tom used to read books. 一 Used Tom to read books ？Yes ，he used to. N o，he usedn t to.(2) Did 十主语 use to do.?回答：
3、Yes，sb. did. N o，sb. didn teg：I used to do homework after school.Did you use to do homework after school ？ Yes ，I did. /No ，I didn t.4.used to do 的反意疑问句形式也有两种，类似于否定句形式。eg ：-They used to go to the concert on Sunday ，usednt/didn t they ？一 Yes，they used to. N o，they usedn t to.( 一 Yes，they did. N o，the
4、y didn t.)5.used to 也可用于 there be 结构，表示“过去常有”eg ：There used to be a meeting every Monday morning last month. 上个月每星期一上午总要开会。6. 拓展：sb. get/be used to ( doing) sth. 某人习惯于 ( 干) 某事；use sth. to do sth. 用某物做某事；sth.be used to do sth. 某物被用于做某事；be used for(doing) sth. 用于做某事；be used by sb. 被某人所用。反意疑问句 : 陈述部分的主
5、语为 this, that, 疑问部分主语用 it; 陈述部分主语用 these, those, 疑问部分用 they 做主语 .例: This is a new story, isn t it? Those are your parents, aren t they? 陈述部分是 there be 结构 , 疑问部分仍用 there例: There was a man named Paul, wasn t there? I am 后的疑问句 , 用 aren t I ? 例: I am in Class 2, aren t I? 陈述部分与含有 not, no, never, few, li
6、ttle, hardly, seldom, neither, none 等词时 , 疑问部分用肯定 . 例: Few people liked this movie, did they?但陈述句中若带有否定前缀或后缀的单词时 , 这个句子仍视为肯定 , 后面仍用否定 .例: Your sister is unhappy, isn t she? 陈述部分的主语若为不定式或 V-ing 短语, 疑问部分主语用 it.例: To spend so much money on clothes is unnecessary, isn t it? 陈述句中主语是 nobody, no one, every
7、one, everybody 等指人的不定代词时 , 疑问部分用 they做主语 ; 若陈述部分主语是 something, anything, noting, everything 等指事物的不定代词时 ,疑问部分用 it 做主语 .例: Nobody says one word about the accident, do they?Everything seems perfect, doesn t it? 当主语是第一人称 I 时, 若谓动为 think, believe, guess 等词时 , 且其后跟宾丛 , 这时疑问句部分的人称 , 时态要与宾语从句保持一致 , 同时还要考虑否定
8、转移 .例: I don t think he can finish the work in time, can he? 前面是祈使句 , 后用 will you? (let s 开头时 , 后用 shall we?)1 There_ a restaurant here.A. used to B. used to beC. used to have D. is used to be2 He showed _ in English last year. And he is _ in English.A. interest, much interestedB. interest, more int
9、erestedC. interesting, much interestD. interesting, more interested3. I often sleep _ windows _ all year round.A. with, close B. with, openC. having, close D. leaving, opened4. Toms grandfather used to take a walk in the park, _?A. doesnt he B. dont theyC. did he D. didnt he5. I didn t understand _
10、, so I raised my hand to ask him.A. what my teacher saysB. what does my teacher sayC. what my teacher saidD. what did my teacher say解析：1. used to do 表示过去经常的习惯， He used to go fishing on Sunday. 他以前常在星期天去钓鱼。 This river used to be clean. 这条何以前是干净的。 be/get used to sth/doing sth 表示习惯作某事，故答案为 B 。2. show i
11、nterest in 在某方面表现出兴趣， be interested in 对某事感兴趣， more interested 是比较级，因此正确的答案是 B。3. 分析句子结构 I sleep 为完整的主谓结构 ; 后部分为修饰语，表示一种状态 , with, having,leaving 后均可接介词、副词、形容词或动词的分词形式，表状态 , 但分析各选项， close 为动词，opened 为过去分词，表示被动， open 为形容词，表示状态；故选 B。4. 本题考查 used to 结构的反义疑问句。由于前半部分为肯定且主语为 Toms grandfather ，所以反义疑问部分为否定加
12、第三人称主格。5. 宾语从句的考查。宾语从句在选择时应注意语序、特殊疑问词和时态。本题中由于 B、D 选项中含有助动词为疑问句，故语序不对。主句为 I didn t understand ，时态为一般过去式，故从句时态也应为一般过去时，故选 C。基础演练一. 根据中文意思完成句子1他过去习惯早起。He used to_.2你过去经常弹钢琴吗 ?_ play the piano?3我过去怕在别人面前说话。I used to be afraid of_.4我过去早餐吃汉堡，现在早餐吃热狗。I used to eat a hamburger for breakfast ，_5我改变很多。我现在喜欢交
13、朋友。I ve changed a lot. I like _.答案 :1. get up early2. Did you use to3. speaking in front of people4. but now I have a hot dog for breakfast5. making friends now巩固提高（A）用括号所给代词的正确形式填空。1Two students of_ came to see _ last Sunday. （ ）2“Is this your brothers cap? ” “Yes, its_ （he）3The teacher will help _
14、 with _ English. （she）4I love my garden. They love_ （they ）5Tom doesn t like to go there _ （he）He wants to go there with some friends.（B）选择方框中的代词填空。one，another ，the other ，it ，all ，somebody，nobody6She bought two jackets. One is for her father, _ is for her mother.7My parents and I _ enjoy watching basketball matches.8All the people left the room after the meeting. There is _ in the room now.9_ has taken my bag away. I cant find _.10If you need a ruler, Ill len
