《斯坦福大学开放课程：编程方法》讲义#25

Mehran Sahami CS 106A Handout #25 October 22, 2007

Strings Examples Based on examples by Eric Roberts and Patrick Young.

Checking for palindromes

Reversing strings and a simpler version of checking for palindromes

Counting uppercase characters

– 2 –Replace first occurrence

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【知识点讲解】 1. 今天我们将学到和方位有关的表达方式。文中提到：on the right(left), 在右边(左边);和in the middle of, 在中间。我们再补充几个： 在……上面(有接触的)：on sth. 比如“桌子上有一只盒子”：There's a box on the table. 在……上面(没有接触的)：above sth. 比如“桌子上方有一只鸟”：There's a bird above the table. 在……里面：in sth. 比如“盒子里有个皮球”：There's a ball in the box. 在……下面：under sth. 比如“桌子下面有只猫”：There's a cat under the table. 2. “哪里有什么东西”这样的句型我们用There is ... + 表示方位的词组+ 名词这样的句式表达。 3. 几个重点单词：refrigerator是冰箱的意思，一般口语中用其简称fridge ;cooker这个词不是厨师的意思，而是炊具。英语中的厨师用cook, 或是chief来表示。

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pretty： (adj.)漂亮的; (adv.)非常，很 enough：充足 good enough so good, very good 水准副词一般加在形容词或副词前面，增强一种水准。 地点副词：Home, abroad, downtown, upstairs, downstairs 时间副词：yesterday, tomorrow, next …, three days …, before 时间和地点副词前面都不能加地点副词[笔误，应为介词]。 频率副词：always, sometimes, usually, often, ever, never 放在be动词之后，行为动词之前；助动词和行为动词之间。表示强调则可放在句首或句末。 方式副词：主语+vi.+方式副词 构成：adj.+ -ly beautiful 主语+be动词+adj.（叙述） adj.+ n.（修饰+限定） warm, warmly, pleasant, pleasantly, slow, slowly, quick, quickly, careful, carefully 方式副词，后面加-ly 形容词修饰名词，起修饰限定的作用 副词修饰动词

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新概念英语第二册课后练习题答案详解(第25课) 新概念英语第二册课后习题Lesson 25 1. c a. The writer didn’t know any English 与课文实际内容不符; b. The porter didn’t speak English 也与实际情况不符;d. The writer was a foreigner 虽然是课文涉及的内容，但不是作者不能听懂搬运工人讲话的真正原因，因为作者也懂英语;只有 c. The writer couldn’t understand the porter’s English 最符合课文的实际情况，是准确答案。 2. b 根据文章My teacher never spoke English like that!, 只有b. expected everyone in England to speak like his teacher 说出了作者的想法. a. didn't think the porter was English 与事实不符合,文章中没有这样的暗示. c.. doesn't think the English speak English, 不是作者的真实想法. d. thinks that the English speak many different languages虽然作者是这样说的,但是不一定是作者的真实想法. 3. b 只有选b. is 最符合语法。 a. are 不合乎语法，因为English 做“英语”讲时是单数名词，不能跟复数的系动词are; c. was 也不合乎语法，因为陈述一种语言的性质应该用一般现在时; d. has (有)更不符合语法，因为has 不能做系动词。 4. a

新概念英语第一册第25课Lesson25课文单词知识点

. Lesson25 Mrs. Smith's kitchen is small. There is a refrigerator in the kitchen. The refrigerator is white. It is on the right. There is an electric cooker in the kitchen. The cooker is blue. It is on the left. There is a table in the middle of the room. There is a bottle on the table. The bottle is empty. There is a cup on the table, too. The cup is clean.史密斯夫人的厨房很小。厨房里有个电冰箱。 冰箱的颜色是白的。 它位于房间右侧。 厨房里有个电灶。 电灶的颜色是蓝的。 它位于房间左侧。 房间的中央有张桌子。桌子上有个瓶子。 瓶子是空的。 桌子上还有一只杯子。杯子很干净。

【知识点讲解】 1. 今天我们将学到和方位有关的表达方式。文中提到：on the right(left), 在右边(左边);和in the middle of, 在中间。我们再补充几个： 在……上面(有接触的)：on sth. 比如“桌子上有一只盒子”：There's a box on the table. 在……上面(没有接触的)：above sth. 比如“桌子上方有一只鸟”：There's a bird above the table. 在……里面：in sth. 比如“盒子里有个皮球”：There's a ball in the box. 在……下面：under sth. 比如“桌子下面有只猫”：There's a cat under the table. 2. “哪里有什么东西”这样的句型我们用There is ... + 表示方位的词组+ 名词这样的句式表达。

新概念英语第二册笔记-第二十五课

单词学习 railway n.铁路，铁道[U] (Br.) / railroad (Am.) a line of railway一条铁路 railway station火车站 railway n.轨道(pl.) [C] eg. The railway was opened to traffic last year.这条铁路是去年通车的。high level railway高架铁路 表示“地铁”的词汇： subway ['s?bwei] (Am.) tube [tju:b] (Br.) underground (Br.) metro ['metr?u] (Paris)地铁 rail n.横杆，扶手，围栏，轨道 jump rail出轨 stair rails楼梯扶手 ride the rails逃票乘火车

sit on the rails (Am.)骑墙，保持中立 railing n.栏杆 iron-bar railing铁栏杆 porter n.搬运工，脚夫（在车站，机场，旅馆等处的）bellboy / pageboy (Am.)旅馆，俱乐部等通常穿制服的男服务员port n.港，口岸 clear a port 出港 close a port 封港 reach a port / enter a port 入港 eg. Many ships frequent the port.许多船只常来此港。 eg. Any port in a storm.慌不择路，穷途之策。（谚） several 1) more than three but fewer than many 一些，几个 eg. Several more people than usual came to the concert. 来音乐会的人比平常多了几个。 eg. I repeated my questions several times.我把问题重复了几遍。 2)各自的，各个的（文）

新概念英语第一册第25课

New Concept English (NCE) Lesson 25 Mrs. Smith’s kitchen 【生词】 Mrs. 夫人kitchen n. 厨房refrigerator n. 电冰箱(fridge) right n. 右边electric adj. 带电的，可通电的 left n. 左边cooker n. 炉子，炊具middle n. 中间 room n. 房间cup n. 杯子 史密斯夫人的厨房很小。 厨房里有个电冰箱。 冰箱的颜色是白的。 它位于房间右侧。 厨房里有个电灶。 电灶的颜色是蓝的。 它位于房间左侧。 房间的中央有张桌子。 桌子上有个瓶子。 瓶子是空的。 桌子上还有一只杯子。 杯子很干净。 Lesson 25 Mrs. Smith’s living room 【生词】 living room 客厅near prep.靠近window n. 窗户 armchair n. 扶手椅door n. 门picture n. 图画wall n. 墙 【课文翻译】 史密斯夫人的客厅很大。 客厅里有台电视机。 电视机靠近窗子。 电视机上放着几本杂志。 客厅里有张桌子。 桌上放着几份报纸。 客厅里有几把扶手椅。 那些扶手椅靠近桌子。 客厅里有台立体声音响。 音响靠近门。 音响上面有几本书。 客厅里有几幅画。 画挂在墙上。

【知识点讲解】 1. 今天我们学到和方位有关的表达方式。文中提到：on the right(left), 在右边（左边）；和in the middle of, 在中间。我们再补充几个： 在……上面（有接触的）：on sth. 比如“桌子上有一只盒子”：There's a box on the table. 在……上面（没有接触的）：above sth. 比如“桌子上方有一只鸟”：There's a bird above the table. 在……里面：in sth. 比如“盒子里有个皮球”：There's a ball in the box. 在……下面：under sth. 比如“桌子下面有只猫”：There's a cat under the table. 2. “哪里有什么东西”这样的句型我们用There is ... + 表示方位的词组+ 名词 3.文中提到：near sth. 靠近某物；on the wall，在墙上。注意这里的介词用的是on，如果是in the wall的话，那么意思就是“镶在墙里面”。 on和in这两个介词的意思，前者是在……之上，后者是在……里面， 在和树连用的时候要特别记忆一下： on the tree：在树上。但指树上本来就有的、生长在树上的东西，比如果实、树叶一类。e.g There is an apple on the tree. in the tree：也是在树上。但指树上原本没有的、外来的东西，比如一只鸟、或是挂在树上的风筝一类。e.g There is a bird in the tree. 4. “哪里有什么东西”这样的句型上节课我们学到了There is ...单数的表达形式， 而如果要表达复数的概念，则用There are... e.g There are some cups on the table. 【作业时间】 1.请翻译这一段话：我妈妈家有一张桌子。桌子上面有一只猫和一只狗。桌子右边有一台电 视机，左边有两张椅子 Mrs. Smith's kitchen is small. There is a refrigerator in the kitchen. The refrigerator is white. It is on the right. There is an electric cooker in the kitchen. The cooker is blue. It is on the left. There is a table in the middle of the room. There is a bottle on the table. The bottle is empty. There is a cup on the table, too. The cup is clean. Mrs. Smith's living room is large. There is a television in the room. The television is near the window. There are some magazines on the television. There is a table in the room. There are some newspapers on the table. There are some armchairs in the room. The armchairs are near the table. There is a stereo in the room. The stereo is near the door. There are some books on the stereo. There are some pictures in the room. The pictures are on the wall.