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第1课算法的概念练习题

第1课算法的概念练习题

算法的概念学案

第一课算法的概念

1、填空题

(1)我们把做某一件事或者完成某项工作的方法、步骤或程序称为()。

要确立算法,先明确(),然后做(),在需要分析的基础上确定问题解决的方法,最后列出解决问题的具体步骤。

(2)在日常学习和生活中,做事需要遵循一定的方法和步骤。解数学题、购物消费、洗衣做饭……都有一套问题解决的方法和步骤。这种解决生活中问题的方法和步骤,我们称之为()。

(3)人类进行计算的过程可分解为(),(),(),(),()等基本步骤。人类复杂的活动都是由这些基本步骤组成的。

(4)、人工智能是研究用计算机模拟人的思维过程和智能行为的学科,主要包括计算机实现智能的原理、制造类似人脑智能的计算机。该领域的研究包括()()()()和()等。

2、选择题

(1)一个解决问题的方案称为算法。下列属于算法的基本性质的是()

A、有穷性

B、确定性

C、可行性

D、以上都是

(2)下列关于算法的说法中,不正确的是()

A、算法的作用在于记录和交流人类解决问题的思想。

B、对于给定的一个问题,其算法不一定是唯一的。

C、对于复杂问题,我们一般先进行算法设计,然后再编程解决。

D、算法的步骤可以无限制执行下去,永不停止。

3、判断题

(1)算法是对问题解决方案清晰而完整的描述。这种解决问题的方案由计算机定义,和人的价值观没有任何关系。()

(2)按照冯·诺依曼存储程序的原理,计算机在执行程序时必须先将要执行的相关程序和数据存入硬盘中。()

(3)、简单的算法可以设定有限步数终止运动,复杂的算法可以设定无限循环。()

4、解难释疑

算法的概念及作用是什么?

答:

5、人机对话

小明的哥哥被一所大学录取了,录取通知书中写着他需要在报到第一天完成以下事情:(1)交费,注册;(2)分配宿舍,办理入住手续:(3)领取日用品;(4)参加新生招待会。

请你根据所学知识,用流程图描述以上事情。

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2、数字:1-10 四、语用主题 失物招领的问答。 ———————【第1册第3-4课】——————— 一、重要句型或语法 1、指示代词this的用法: 1) This is not my umbrella. 2) Is this your ... Yes, it is. / No, it isn't. 3) Is this it Yes, it is. / No, it isn't. 2、人称代词的用法 it的用法:用来指代前面刚刚提到过的事物。 3、小编建议 1)在讲“Is this it”的句型时,可以拓展“Is that it”的句型。 2)本次课的this侧重的是用来描述事物的状态。 二、课文主要语言点 1、My coat and my mubrella please:侧重讲要取回自己东西时,可使用“...please”的句型。其中,省略号部分为要取回的东西,please前可以加上逗号。 2、Here is your ...:意为“这是您的...”。“Here's...”是固定句型,用于给某人东西时的提醒,而且无论后面要给别人多少东西,都用Here's,而无需使用Here're。 3、number:数字。常用在“Number ...”的结构中,且首字母要大写,表示号码是多少。 4、sorry:表示抱歉或者难过。 三、双课补充内容 1、继续操练:Is this your ... Yes, it is. / No, it isn't. 2、识记单词:suit, school, teacher, son, daughter 3、数字:1-15 四、语用文化

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新概念英语第一册单词第75课:不舒服的鞋子 go [g] 走 ago ['g] adv.以前 【单词扩充】formerly以前,从前 whilom以前,从前 【单词搭配】long time ago很久以前 【单词例句 A: This fax just arrived five minutes ago A:这份传真在5分钟前刚到达。 B:Let me have a look. B:给我看看。 buy [ba] 买 【派生词】buyer买主 【单词扩充】purchase购买 【反义词】sell卖 【单词搭配】buy sb.sth.给某人买东西 【单词例句】 A:I am looking for a coat, but I don't know what kindI need to buy. A:我要买件外套,不过我不知道应该买什么样的。 B: What style do you like? B:您喜欢什么款式的?

pair [pe] 双 【单词扩充】twain双,对 【单词搭配】a pair of -双 couple ['kp()l] 双,对 【单词扩充】in pairs成对的 【单词例句】 A: You must Iike this pair of earrings. A:您一定喜欢这对耳环。 B: Yes, they are very nice. B:是的,它们十分精致。 fashion ['f()n] (服装的)流行式样 【派生词】fashionable流行的 【单词扩充】prevalent流行的popular流行的 【单词搭配】in fashion流行的 out of fashion过时的【单词例句】 A: It's the latest fashion.Very popular A:这是最新款式,非常流行。 B:MayI try it on? B:我能试试吗? uncomfortable [n'kmf()tb()l] adj不舒服的 【单词例句】

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房间的中央有张桌子。 There is a bottle on the table. 桌子上有个瓶子。 The bottle is empty. 瓶子是空的。 There is a cup on the table, too.桌子上还有一只杯子。 The cup is clean. 杯子很干净。 New Word and expressions 生词和短语Mrs. 夫人 kitchen n. 厨房 refrigerator n. 电冰箱 right n. 右边 electric adj. 带电的,可通电的 left

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新概念英语第一册Lesson75~80课文翻译及 学习笔记 新概念英语第一册Lesson75~76课文翻译及学习笔记【课文】 LADY: Do you have any shoes like these? SHOP ASSISTANT: What size? LADY: Size five. SHOP ASSISTANT: What color? LADY: Black. SHOP ASSISTANT: I’m sorry. We don’t have any.

LADY: But my sister bought this pair last month. SHOP ASSISTANT: Did she buy them here? LADY: No, she bought them in the U.S. SHOP ASSISTANT: We had some shoes like those a month ago, but we don’t have any now. LADY: Can you get a pair for me, please? SHOP ASSISTANT: I’m afraid that I can’t. They were in fashion last year and the year before last. But they’re not in fashion this year. SHOP ASSISTANT: These shoes are in fashion now. LADY: They look very uncomfortable. SHOP ASSISTANT: They are very uncomfortable. But women always wear uncomfortable shoes! 【课文翻译】

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新概念英语第1册第75-76课重点语法 第75-76课的内容: 一、重要句型或语法 1、一般过去时 表示过去发生的而现在已经结束的动作或状态。本课主要学习的 是表过去的时间状语,主要有:1)由ago引导的,如five days ago;2)由last引导的,如last week;3)由before last引导的,如the month before last。 2、一般过去时与一般现在时的区别 注意区分句子中的时间状语即可,如:We had some shoes like those a month ago, but we don't have any now. 这句话的前半句 中的时间状语是a month ago,是典型的过去时间,所以动词have要 用过去式形式had;后半句中的时间状语是now,所以动词要一般现在 时形式。 二、课文主要语言点 Do you have any shoes like these? 1)可复习一下have表示 有的用法,从肯定句、否定句、一般疑问句和划线部分提问角度实行 操练。注意否定句和疑问句中some要改为any。 2)注意like these,表示像这样的。like后面如果是单数,则用like this;如果是远指, 就用like that/those。 What size? Size five. size用来表示鞋子的号码大小。在此能够对比中国码和国际码的区别。比如美国人说的5号女鞋,一般是指 中国的35码的女鞋。

What colour? Black. 口语中一般都采用最简形式的问答。注意colour的拼写,美式英语的拼写形式为colour,一般-our音节在美语里经常被拼作-or。 We don't have any. any后面省略了shoes。可在此提示学生英 式英语的表达能够是:We haven't any. But my sister bought this pair last month. 句中用了last month,所以动词要用过去式。注意bought的原形为buy;this pair 后面省略了of shoes。可对本句话实行句型转换训练,如改为否定句、一般疑问句和划线部分提问。 Did she buy them here? No, she bought them in the U.S. the U.S.,指美国,完整称呼为the United States of America。 We had some shoes like those a month ago, but we don't have any now. 注意前后句的时间状语和动词形式。 Can you get a pair for me, please? I'm afraid that I can't. 1)Can you get ... for me, please?,能够作为常用句型来记,即当购物时要让店员给自己想要的衣服等时用。 2)I'm afraid that ...,作为常用句型。 They were in fashion last year and the year before last. be in fashion,表示流行的、时髦的。可补充be out of fashion, 表示过时的。fashionable,表示时髦的、流行的。 But they are not in fashion this year. be not in fashion,就相当于be out of fashion。 They look very uncomfortable. 注意uncomfortable的构词, 即un-+comfort+-able。

新概念英语第一册第75课Lesson75课文单词知识点

【知识点讲解】 1. 这节课中我们依旧可以看到段落在一般现在时态和一般过去时态之间的切换,请大家用心体会,什么时候该用什么时态,这对自己以后的写作也非常重要哦! 2. 同样课文中的两个动词buy 和wear 是不规则的动词过去式,大家要记下来。 3. I'm afraid... 我恐怕…… 是一个很礼貌的表达,用来委婉地拒绝对方。 Lesson75 LADY: Do you have any shoes like these? SHOP ASSISTANT: What size? LADY: Size five. SHOP ASSISTANT: What color? LADY: Black. SHOP ASSISTANT: I'm sorry. We don't have any. LADY: But my sister bought this pair last month. SHOP ASSISTANT: Did she buy them here? LADY: No, she bought them in the U.S. SHOP ASSISTANT: We had some shoes like those a month ago, but we don't have any now. LADY: Can you get a pair for me, please? SHOP ASSISTANT: I'm afraid that I can't. They were in fashion last year and the year before last. But they're not in fashion this year. SHOP ASSISTANT: These shoes are in fashion now. LADY: They look very uncomfortable. SHOP ASSISTANT: They are very uncomfortable. But women always wear uncomfortable shoes! 女 士:像这样的鞋子你们有吗? 售货员:什么尺码的? 女 士:5号的。 售货员:什么颜色? 女 士:黑的 售货员:对不起,我们没有。 女 士:但是,我姐姐上个月买到了这样的一双。 售货员:她是在这儿买的吗? 女 士:不。她是在美国买的。 售货员:一个月前我们有这样的鞋。但是现在没有了。 女 士:您能为我找一双吗? 售货员:恐怕不行。这鞋在去年和前年时兴,而今年已不流行了。现在流行的是这种鞋子。 女 士:这种鞋子看上去很不舒适。 售货员:的确很不舒适。可是女人们总是穿不舒适的鞋子!

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