homework2

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homework2

ExercisesPart one1. What is acoustic phonetics? [人大2003研]【答案】Acoustic phonetics is a technical area of linguistics. It is the study of sound waves made by the human vocal organs for communication.2. Auditory phonetics studies how sounds are perceived by the speaker.[清华2001研]【答案】FPart two:一、术语解释IPA [南开大学2004研]【答案】IPA: the abbreviation of International Phonetic Alphabet, which is devised by the International Phonetic Association in 1888. IPA is a set of symbols which can be used to represent the phones and phonemes of natural languages.二、简答题What are the three parts of the vocal organs (3 points)? [清华2001研]【答案】The pharynx, the mouth and the nose are the three parts of the vocal organs.三、论述题Is English a language that uses a phonetic alphabet system? Explain briefly why or why not with examples. (15 points) [北外2004研] 【答案】The Phonetic Alphabet is a system of letters and symbols that are used to represent the individual sounds of a language. English is a language that uses a phonetic alphabet system because it is a phonographic language by nature. There are mainly three types of language concerning its writing system: ideographic language which uses symbols (ideograms) to represent whole words or concepts (ideas), with Chinese as an example; syllabic language in which words or concepts are represented by syllable, with Japanese syllabic system as an example; phonographic language which uses special alphabetic or other typographical characters to express the sounds of an actual spoken utterance in writing, with many European languages as examples. English uses alphabetic script to represent certain single type sound. For example, the sound which is written as sh in English can be expressed by symbol [∫], as in ship; and the sound that is written as c can be expressed by the symbol of [k], as in cup.四、选择题Of the three cavities, is the most variable and active in amplifying and modifying speech sounds. [北京第二外国语学院2004研]A. nasal cavityB. pharynx cavityC. oral cavity【答案】C五、判断正误1. When the vocal folds are apart, the air can pass through easily and the sound produced is said to be voiced. [大连外国语学院2008研] 【答案】F2. Of the three cavities, pharynx cavity is the most variable and active in amplifying and modifying speech sounds. [北京第二外国语学院2007研]【答案】FPart three一、术语解释1. Cardinal vowel [四川大学2006研，大连外国语学院2008研] 【答案】The cardinal vowels are a set of vowel qualities arbitrarily defined, fixed and unchanging, intended to provide a frame of reference for the description of the actual vowels of existing languages.2. Glottal Stop [四川大学2006研]【答案】V ocal tract is composed of oral cavity, nasal cavity and pharynx. When the vocal folds are totally closed, no air can pass between them. The result of this gesture is the glottal stop.3. Bilabial consonant [四川大学2007研]【答案】Bilabial consonants refer to consonants which are made with the two lips.4. V oiceless [西安交通大学2008研]【答案】When the vocal folds are apart, the air can pass through easily and the sound produced is said to be voiceless. For example, consonants [p, s, t] are produced this way, so they are voiceless consonants. “V oiceless”is defined in contrast with “voiced”. Consonants [b, z, d] are voiced consonants.二、简答题1. Mention a labiodental sound in English. Tell what speech organs are involved in producing labiodental sounds. (4 points) [北京第二外国语学院2007研]【答案】/f/ (or /v/), the upper front teeth and the lower lip are involved.2. What are the differences between voiced sounds and voiceless sounds in terms of articulation? [南开大学2004研]【答案】When the vocal cords are spread apart, the air from the lungs passes between them unimpeded. Sounds produced in this way are described as voiceless. Consonants [p, s, t] are produced in this way. When the vocal cords are drawn together, the air from the lungs repeatedly push them apart as it passes through, creating a vibration effect. Sounds produced in this way are described as voiced. [b, z, d] arevoiced consonants.三、选择题1. Of the consonants /p/, /t/, /k/, /f/, /m/, /z/ and /g/, which has the features of voiceless and velar? [对外经济贸易大学2005研]A. /k/B. /p/C. /g/D. /t/【答案】A2. The vowel is a low back vowel. [西安外国语学院2006研]A. /i:/B. /u/C. /æ/D. /a:/【答案】D3. Point out which item does not fall under the same category as the rest, and explain the reason in ONE sentence. [南京大学2008研] A. /f/ B. /z/ C. /v/ D. /k/ [Focus on manner of articulation]【答案】D (Reason: A, B and C are fricatives, but D is a plosive.)五、填空题1. Consonant articulations are relatively easy to feel, and as a result are most conveniently described in terms of place and of articulation. [北京第二外国语学院2008研]【答案】manner2. are produced by constricting or obstructing the vocal tract at some place to divert, impede, or completely shut off the flowof air in the oral cavity. [中山大学2006研]【答案】consonants六、判断正误1. Bilabial consonant is produced when the obstruction is partial and the air is forced through a narrow passage. [对外经济贸易大学2006研]【答案】F2. The sound segments are grouped into consonants and vowels. [大连外国语学院2008研]【答案】T七、音标题Work out the distinctive features of the following sounds. (10%)[南开大学2007研]1.[t h]2.[w]3.[v]4.[ð]5.[l]【答案】1. [t h] aspirated voiceless alveolar stop2. [w] voiced bilabial approximant3. [v] voiced labio-dental fricative4. [ð] voiced dental fricative5. [l] voiced alveolar lateral一、术语解释1. Phoneme [人大2006研，浙江大学2005研，上海交通大学2007研]【答案】Phoneme refers to the abstract element of sound, identified as being distinctive in a particular language. For example, in English, /p/ is described as a phoneme.2. Minimal pairs [武汉大学2005研，浙江大学2004研，四川大学2007研，上海交通大学2006研，北京航空航天大学2008研，北京第二外国语学院2006研]【答案】Two words which are identical in every way except for one sound segment that occurs in the same place in the string. For example, the English words bear and pear constitute a minimal pair as they differ in meaning and in their initial phonemes /b/ and /p/. 3. Free variation [武汉大学2004研]【答案】Free variation is the interchangeable relationship between two phones, in which the phones may substitute for one another in the same environment without causing a change in meaning. For example, the final consonant of cup may not be released by some speakers so there is no audible sound at the end of this word. In this case, it is the same word pronounced in two different ways : [kʰʌpʰ]and [kʰʌp] (The diacritic “┐”indicates “no audible release ” in IPA symbols.)4. Allophone [四川大学2008研，北京交通大学2007研]【答案】Allophone refers to variants of the same phoneme, which are in complementary distribution and bear phonetic similarity.5. Coarticulation[武汉大学2008研，四川大学2006研，南开大学2007研]【答案】Coarticulation refers to the phenomenon that sounds continually show the influence of their neighbors. For example, in lamb, when a is followed by m, the velum will begin to lower itself during the articulation of a so that it is ready for the following nasal. When such simultaneous or overlapping articulations are involved, we call the process coarticulation. If the sound becomes more like the following sound, it is known as anticipatory coarticulation. If the sound displays the influence of the preceding sound, it is perseverative coarticulation.6. Broad and narrow transcription [中山大学2006研]【答案】When we use a simple set of symbols in our transcription, it is called a BROAD TRANSCRIPTION. And the use of more specific symbols to show more phonetic detail is referred to as a NARROW TRANSCRIPTION. Both are phonetic transcriptions so we put both forms in square brackets [ ].7. Complementary distribution [武汉大学2008研，南开大学2007研]【答案】When two sounds never occur in the same environment, they are in complementary distribution. For example, the aspirated English stops never occur after [s], and the unaspirated ones never occur initially. Allophones of the same phoneme are usually in complementary distribution. The allophones of /p/, for instance, are also in complementary distribution. The unaspirated [p] occurs after /s/, while the aspirated [ph] occurs in all other environments except after /s/.二、论述题What are phonemes, phones and allophones? Explain their relationship with examples from English or Chinese. (15 points) [北外2005研]【答案】A phoneme is a minimally distinctive set of sounds in a language that can signal a difference in meaning. It is an abstract phonological unit represented or realized by a certain phone in a particular phonetic context. A phone is an individual phonetic unit or segment that occurs in speech. The speech sounds we hear and produce during linguistic communication are all phones. Each of the set of phones which correspond to a single phoneme of a language is called an allophone. Phonemes are placed between slant lines (/ /)and phones are placed between square brackets ([ ]). Allophones of the same phoneme generally occur in different contexts and never distinguish one word from another. For example, when we pronounce the two words peak and speak, we are aware that the sound [p] is pronounced differently, in the word peak, it is pronounced with a strong puff of air stream; but the same stop sound is pronounced slightly differently in the word speak, where the puff of air is withheld a little. The [p] sound in peak is called an aspirated [ph] and the [p] sound in speak is an unaspirated [p]. There is a slight difference in the way they are pronounced, but such a difference does not give rise to difference in meaning. So /p/ is a phoneme in the English sound system, and it can be realized differently as aspirated or unaspirated in different contexts. The phoneme /p/ in English can be realized as aspirated [ph] and unaspirated [p], which are allophones of the phoneme /p/.三、选择题1. Which of the following is true of an allophone? [对外经济贸易大学2005研]A. A phone can be the allophone of all English vowel phonemes.B. There are no restrictions on the distribution of an allophone.C. There is no possibility of an allophone becoming a phoneme.D. An allophone changes the meaning of the word.【答案】C2. Which of the following CANNOT be considered as minimal pair? [大连外国语学院2008研]A. /ai/-/ɔi/B. /p/-/b/C. /s/-/θ/【答案】C3. Point out which item does not fall under the same category as the rest, and explain the reason in ONE sentence. [南京大学2007研] A. resolution B. resident C. restart D. resignation [Focus on the pronunciation of “s”]【答案】C ( Reason: in A, B, D, “s”are all pronounced as [z], while in C “s”is pronounced as [s].)四、填空题transcription should transcribe all the possible speech sounds, including the minute shades.[北京第二外国语学院2004研]【答案】narrow五、判断正误1. A phoneme in one language or one dialect may be an allophone in another language or dialect. [清华2000研，清华2001研] 【答案】T2. Broad Transcription is intended to symbolize all the possible speech sounds, including the minute shades. [北京第二外国语学院2003研]【答案】F3. Phonetic similarity means that the allophones of a phoneme must bear some morphological resemblance. [大连外国语学院2008研]【答案】F补充：此题型还常考free variation和complementary distribution，phone和phoneme的区别。

高考口语Part B翻译作业homework2

1. 你打算毕业之后做什么？ 2. 你最喜欢什么样的文章呢？ 3. 你在校时什么时候最想念父母？ 4. 你觉得有必要加强师生间的课后对话吗？ 5. 毕业典礼上我们应该邀请谁？ 6. 你退休后经常自己做饭吗？ 7. 你觉得谁是我们班上最高的同学？ 8. 什么样的学生最容易得到老师的欣赏？ 9. 你觉得合作对于学习很重要吗？ 10. 作为学生，你了解成功的秘诀吗？ 11.什么是你最难忘的经历？ 12.你觉得退休后还需要继续学习吗？
What was James interested in when he was young? Who had the biggest effect/ influence on you? Who influenced you most? 2 Could you please speak a little more? What do you mean by “learning styles?” How did you learn a foreign language?
2. 你能说说英国人吗？
3. 你还有别的困难吗？
4Part B Role Play 情景介绍角色：你是病人
任务：（1）向医生咨询健康问题。
（2）根据谈话内容回答问题。 1. 那我该做什么呢？ 2. 我还需要注意什么吗？

3. 你觉得我需要吃药吗？
1
Does James like music as much as you?
（1）采访Dr Brown 有关外语学习的问题。
（2）根据谈话内容回答问题。 1. 你能再多说点吗？ 2. 你说的学习风格是什么意思？
3. 你是如何学习外语的？
3Part B Role Play 情景介绍角色：你是学生

homework2 翻译笔译

E—C：From this motive目的, I began to think seriously of matrimony婚姻生活, and chose my wife as she did her wedding gown结婚礼服, not for a fine glossy surfaces but such qualities as would wear well. To do her justice, she was a good-natured notable著名的woman; and as for breeding教养, there were few country ladies who could show more. She could read any English book without much spelling, but for pickling腌制，酸洗, preserving保存, and cookery烹调, none could excel胜过her. She prided 以....自豪herself also upon being an excellent contriver 发明者in house- keeping; tho' I could never find that we grew richer with all her contrivances. However, we loved each other tenderly温柔的, and our fondness increased as we grew old. There was in fact nothing that could make us angry with the world or each other. We had an elegant幽雅的house, situated in a fine country, and a good neighbourhood. The year was spent in moral or rural amusements; in visiting our rich neighbours, and relieving such as were poor. We had no revolutions to fear, nor fatigues劳累to undergo; all our adventures were by the fire-side, and all our migrations from the blue bed to the brown.As we lived near the road, we often had the traveller or stranger visit us to taste our gooseberry 鹅莓wine, for which we had great reputation; and I profess声称with the veracity 诚实of an historian, that I never knew one of them find fault with it. Our cousins too, even to the fortiethremove, all remembered their affinity吸引力，亲密关系, without any help from the Herald's 使者office, and came very frequently to see us. Some of them did us no great honour by these claims of kindred家族; as we had the blind, the maimed残废的, and the halt踌躇，停止amongst the number. However, my wife always insisted that as they were the same flesh and blood, they should sit with us at the same table. So that if we had not, very rich, we generally had very happy friends about us; for this remark will hold good thro' life, that the poorer the guest, the better pleased he ever is with being treated: and as some men gaze注视with admiration at the colours of a tulip郁金香, or the wing of a butterfly, so I was by nature an admirer of happy human faces. However, when any one of our relations was found to be a person of very bad character, a troublesome guest, or one we desired to get rid of, upon his leaving my house, I ever took care to lend him a riding coat骑车外套, or a pair of boots, or sometimes an horse of small value, and I always had the satisfaction of finding he never came back to return them. By this the house was cleared of such as we did not like; but never was the family of Wakefield韦克费尔德known to turn the traveller or the poor dependent out of doors.。

人教版英语七年级下册UNITE2

5
A
That's a funny time for breakfast! 那个时间吃早饭真有意思哟!
time常常和介词“for”搭配，表示“做......的时间”。
We don't have too much time for sports. 我们没有太多时间开展体育活动。 Time for dinner, children go and wash your hands, please. 孩子们，饭好了。请去洗手吧。
16
B
Match the verbs in column A with the words in column B. Then use the phrasses to complete the sentences.
A
taste
clean
take B your teeth my room
have
get
一般说来半个小时以内，常常用介词past，表示“几点过几分” 例如: a quarter past three三点一刻; half past six六点半半小时过后多用介词to，表示“差几分到几点” 例如: a quarter to nine九点差一刻或八点四十五分。
7
A
In the evening,I either watch TV or play computer games. 晚上我要么看电视要么玩电脑游戏
up adv.向上
get up 起床;站起
dress v.穿衣服n.连衣裙
Hale Waihona Puke get dressed 穿上衣服
brush v.刷;刷净 n.刷子
tooth n.(plteeth)牙齿
shower n.&v.淋浴n.淋浴器(间) take a shower 洗淋浴

Homework_2(Solution)

单选题（共计40题）1. 8086C P U复位后,下列寄存器的值为（C）。

A：CS = 0000H、IP = 0000H B：CS = 0000H、IP = FFFFHC：CS = FFFFH、IP = 0000H D：CS = FFFFH、IP = FFFFH2．地址锁存发生在指令周期的（A）时刻。

A：T1 B：T2 C：T3 D：T43．8086C P U读数据操作在总线周期的（D）时刻。

A：T1 B：T1，T2 C：T2，T3 D：T3，T44．8086C P U写数据操作在总线周期的（D）时刻。

A：T1 B：T2 C：T2，T3 D：T2，T3，T45.8086与外设进行数据交换时，常会在（C）后进入等待周期。

A：T1 B：T2 C：T3 D：T46.下列指令中，正确的指令是（A）。

A：MOV AX，20H B：MOV DS，1000HC：MOV AX，CL D：MOV 1000H，BX7．8086C P U的控制线/B H E=0，地址线A0=0时，有（B）。

A：从偶地址开始完成8位数据传送B：从偶地址开始完成16位数据传送C：从奇地址开始完成8位数据传送D：从奇地址开始完成16位数据传送8．8086C P U的控制线/B H E=0，地址线A0=1时，有（C）。

A：从偶地址开始完成8位数据传送B：从偶地址开始完成16位数据传送C：从奇地址开始完成8位数据传送D：从奇地址开始完成16位数据传送9．下列说法中属于最小工作模式特点的是（A）。

A：CPU提供全部的控制信号B：由编程进行模式设定C：不需要8286收发器D：需要总线控制器828810．下列说法中属于最大工作模式特点的是（C）。

A：M//IO引脚可直接引用B：由编程进行模式设定C：需要总线控制器8288 D：适用于单一处理机系统11．包含在8086C P U芯片内部的是（A）。

A：算术逻辑单元B：主存储器单元C：输入、输出单元D：磁盘驱动器12．8086中，存储器物理地址形成算法是（B）。

英语基础模块2 学生用书教案B2U8P3 Reading and Writing(2)

单元名称
Unit 8 There Is No Easy Path to Success.
课型
Reading and Writing
教学目标
1. 能够读懂关于工匠纪录片的观后感；能够熟练运用所给句型转述别人的读后感，并运用所学词句写出工匠纪录片的观后感。 2. 能够分析有关工匠纪录片观后感的逻辑结构；能够客观理解和分析不同的观点，学会从不同角度思考问题。 3. 能够了解更多大国工匠的感人事迹，学习他们的优秀品质。 4. 能够通过观看纪录片，做笔记，小组讨论等学习方法，提升信息提取与总结归纳的能力。相互分享，共同进步。
according to the information in 完整的句子，提高学生的书面正确转述周波等三人
the above form, using the 表达能力，为活动五作铺垫。的观后感。
following sentence patterns: _____ watched the documentary about ______________. What impressed him/her most was _________________________ _.
More than 20 years
Not work but his life.
an old building restorer She created a new method, which
combined the ancient skills and
modern technologies.
A craftsman of
教学重点能够根据所给句型，撰写文章中的观后感。
教学难点能够看懂工匠纪录片，写观后感。
教学方法小组讨论法、任务教学法教学手段 PPT 课件、多媒体设备、微视频等

人教英语PEP版五年级上册_Unit2_单元测试卷

Unit2 My week满分:100分时间:60分钟得分:听力部分一、听录音,选出句子。

(10分)( ) 1. A. I have English and PE on Fridays.B. I have Chinese and PE on Fridays.( ) 2. A.I often read books on Thursdays.B. I often read books on Wednesdays.( ) 3. A. What do you do on the weekend?B. What do you do on Sundays?( ) 4. A. I wash my clothes and play ping-pong on Tuesdays.B. I watch TV and play ping-pong on Tuesdays.( ) 5. A. Do you often play ping-pong?B. Do you often play sports?二、听录音,判断下列句子与内容是(T)否(F)一致。

(10分)( ) 1. What do you have on Mondays?( ) 2. I have art and PE on Fridays.( ) 3. Do you often read books on the weekend?( ) 4. Sometimes I clean my room on Saturdays.( ) 5. What do you do on Wednesdays?三、听录音,将下列图片排序。

(10分)1 / 7笔试部分四、选择正确的答案。

(20分)( ) 1. — Do you often watch TV on the weekend?— No, I . I often read books on the weekend.A.doB. am notC. don’t( ) 2. you often play the pipa?A. AreB. DoC. Am( ) 3. You wash your clothes every day.A. wantB. needC. should( ) 4. Here’s a schedule you.A. forB.atC. from( ) 5. do you have on Fridays?A. What’sB. WhatC. When( ) 6. — Is it Friday?—A. Yes, it isn’t.B. No, it is.C. Yes, it is.( ) 7. You should brush(刷) your teeth .A. everydayB. every dayC. every days( ) 8. My family often football games on the weekend.A. watchB. seeC. read2 / 7( ) 9. I visit my grandparents on the weekend.A. SometimesB. SometimeC. Often( ) 10. We clean the classroom.A. needB. need toC. needs to五、选择相应的单词或短语补全句子。

哈工大人工智能原理习题homework-2

人工智能原理练习题-2从习题中选择自己感兴趣的题目进行思考和解答，任何尝试都是有益的。

必要时，仔细阅读教科书当中的某些章节。

对于加星号的习题，应该编写程序来完成。

第3章逻辑与推理1 对于下列每对原子语句，请给出最一般合一者，如果存在的话：a. (,,),(,,)P A B B P x y zb. (,(,)),((,),)Q y G A B Q G x y yc. ((),),((),)Older Father y y Older Father x Johnd. ((),),(,)Knows Father y y Knows x x2 写出下列语句的逻辑表示，使得它们适合应用一般化分离规则：a. 马、奶牛和猪都是哺乳动物。

b. 一匹马的后代是马。

c. Bluebeard 是一匹马。

d. Bluebeard 是Charlie 的父亲。

e. 后代和双亲是逆关系。

f. 每个哺乳动物都有一个双亲。

3 请根据第二章列出的任务环境特征描述wumpus 世界。

1，42，43，44，41，3 w ！2，33，34，31，2 S OK 2，2OK3，24，21，1 V OK 2，1B V OK3，1 P ！4，1A图7.4（a ）智能体取得进展的两个后续函数。

（a ）第三步移动之后，感知为[Stench,None,None,None];A = AgentB = BreezeG = Gllitter,GoldOK = Safe squareP = PitS = StenchV = Visited W= WumpusA4 假定智能体已经前进到图7.4（a）（如上图）所示的位置，感知到的情况为：[1，1]什么也没有，[2，1]有微风，[1，2]有臭气。

它现在想知道[1，3]、[2，2]和[3，1]的情况。

这3个位置中的每一个都可能包含陷阱，而最多只有一个可能有wumpus。

按照图7.5的实例，构造出可能世界的集合。

2025届福建省福州市晋安区全国初三模拟考试(二)英语试题含答案

2025届福建省福州市晋安区全国初三模拟考试（二）英语试题考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。

选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。

2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。

3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。

Ⅰ. 单项选择1、It that China _ its first homemade aircraft carrier (国产航空母舰) in the water in Dalian on April 26, 2017. A．was reported; put B．was reported; was putC．reported; put D．reported; was put2、These nice photos in Science Museum last year.A．take B．were taken C．are taken D．took3、—Hey, Molly. You ______ on the phone just now.—Oh, I was in the library.A．wanted B．are wanted C．were wanted D．have wanted4、James took the magazines off the little table to make ______ for the television.A．fun B．time C．room D．noise5、The silk ________ very soft.A．feels B．is felt C．feel6、--- I hear that The Wondering Earth is popular now. I have never watched it. What about you?--- __________, but I am very busy this week. How about seeing it together next week?A．I don’t agree with you B．Me tooC．Me neither D．I’m af raid so7、My mother asks me ________ computer games before finishing my homework.A．not to play B．not play C．to not play D．not playing8、Bob took a photo of his girlfriend while she _________ at the party.A．dances B．was dancingC．has danced D．is dancing9、Which of the following words has different sounds from the underlined letter of the word “brea th e”?A．thousand B．though C．smooth10、Unfortunately I was sitting at the table with smokers on side of me.A．eitherB．both C．other D．allⅡ. 完形填空11、As a student, almost everyone has his own learning method. Yet, a recent 1 with my desk mate gave me new ideas on how to study effectively.She was a typical procrastinator in our teachers’ eyes and she always finished homework 2 than me. However, whatpuzzled me most was how she made gradual progress while I 3 . Once, I asked her, “How do you improve your grades even doing your homework so slowly?” She answered, “Doing homework slowly doesn’t 4 that I don’t study. Instead, I just 5 and l earn first, then perform.”So I suddenly realized that she wasn’t procrastinating, but spending her time 6 and reviewing. When reviewing, she was looking for her 7 and then correcting them. When we learn a new thing, we remember it best 8 after we’ve learned it. Then we gradually forget it. A few days later, we may keep nothing at all our mind. But reviewing helps us to better master new knowledge.When students don’t have to prepare for big9 , they should reflect on their work and learn from their mistake. Once it gets close to exams, it’s always10 to start preparing for them.So we need to know how to study effectively.1．A．fight B．game C．trade D．conversation2．A．later B．earlier C．faster D．farther3．A．mustn’t B．sh ouldn’t C．needn’t D．couldn’t4．A．allow B．cause C．mean D．influence5．A．go through B．go over C．go on D．go by6．A．playing B．imagining C．suggesting D．thinking7．A．advantages B．mistake C．strengths D．troubles8．A．suddenly B．usually C．immediately D．recently9．A．events B．parties C．exams D．tasks10．A．wise B．shy C．lovely D．stupidⅢ. 语法填空12、二、语法填空：用所给单词的适当形式填空，未给词的限填一词。

人教版PEP英语五年级上册Unit 2 测试卷

Unit 2过关检测卷时间：40分钟满分：100分听力(30分) 笔试(70分) 总分题号一二三四五六七八九十十一十二得分一、听录音, 选择正确的图片。

(5分)() 1. A. B.() 2. A. B.() 3. A. B.() 4. A. B.() 5. A. B.二、听录音, 给下面图片排序。

(5分)()() () () ()三、听录音, 选择正确的答语。

(10分)() 1. A. It's Wednesday. B. It's July.() 2. A. Yes, I have. B. Yes, I do.() 3. A. I play sports. B. I like sports.() 4. A. He's strong. B. He likes maths.() 5. A. I have PE, Chinese and art. B. I play computer games.四、听录音, 填表。

(10分)Name Time ActivitiesZhang Peng on Saturdays 1. do ________ 2. __________ play ping-pong 3. on________ draw pictures 4. ________ TV 5. play ________五、找出下列单词中不同类的一项。

(5分)() 1. A. science B. class C. English() 2. A. kind B. tired C. often() 3. A. sleep B. eat C. sometimes () 4. A. park B. wash C. read() 5. A. tired B. play C. listen六、选词填空, 补全句子。

(5分)1. We ________ have enough money. (has/don't)2. I need to do some ________. (shops/shopping)3. ________ comes after Wednesday. (Tuesday/Thursday)4. Wu Yifan often ________ TV on the weekend. (watch/watches)5. I want a box of ________. (crayon/crayons)七、单项选择。

冀教版英语四年级上册第二单元Lesson 7 Homework

write, draw, picture, for 重点句式：In the evening, I do my homework. I read a book. I write a story. I draw a记本节课所学的句型、短语和单词，必须会听、说、读、写。
短语： write down 写下 write to… 给……写信
知识点 4 I draw a picture for my story. 我为我的故事画一幅画。
/drɔː/ v. (动词)画例句： She draws a picture for her friend.
她为她的朋友画了一幅画。近义词： paint 绘画固定搭配： draw… for… 为……画……
A. read
B. reads C. reading
点拨：主语 Tom 是第三人称单数，谓语动词read要用第三人称单数形式reads。故选B项。
4. I draw a picture ___B___ my friend.
A. in
B. for
C. at
点拨： draw… for… 是固定搭配，意为“为……画……”，for后一般接人，也可接物。故选B项。
例句： Thank you for your present. 谢谢你的礼物。
用法： for 表示对象，其后一般接人，也可接物。短语： wait for 等候 look for 寻找
Act and guess.
Read a book.
猜词汇同学们分成几组，每组选出三名代表：同学A提前抽取已准备好的词汇卡站在班级最前面，面向同学们；同学B面向同学A；同学C站在同学A和同学B的中间并面向同学B和在座的同学。同学C通过同学B的肢体语言来猜测同学A手中卡片上的词汇。在一分钟内猜对最多的词汇为冠军组。班长当计时员。

四年级上册英语优秀学案-Unit 2 Lesson7 Homework｜冀教版(三起)

Unit 2 At HomeLesson 7【学习目标】1．能听懂、会说、认读并书写词汇:do, my, homework, read, book.2．能认读、理解并运用句型结构:In the evening, I…3．能理解并口头运用下列用语和句子:In the evening, I do my homework. I read a book. I write a story. I draw a picture for my story.能力目标:在日常生活中注意观察,并用简单的英语对话.情感目标:1．培养对英语的兴趣和学习英语的好奇心.2．找机会练习学生的听力技巧.3．在每天的生活中试着模仿和运用英语.【学习重难点】重点:1．能听懂、会说、认读并书写词汇:do, my, homework, read, book.2．能认读、理解并运用句型结构:In the evening, I…3．能理解并口头运用下列用语和句子:In the evening, I do my homework. I read a book. I write a story. I draw a picture for my story.难点:理解并运用动词短语进行说话和交流.【学习过程】知识链接:复习一星期七天词汇.学法指导:小组合作,自主探究.流程一:（一）自学质疑:看书讨论第一部分四幅图:What does Li Ming do in the evening?（二）合作释疑:播放光盘录音,跟读.讨论:What do you do in the evening?（三）展示评价:选择搭档并互相提问在家里都做什么.尽量使用新学的短语:do my homework, read a book, draw a picture, write a story.（四）巩固深化:用大写形式将下列句子写在作业本上:I READ MY BOOKI WRITE A STORYI DRAW A PICTUREI DO MY HOMEWORK复习句子,大声念出来.做动作.流程二:（一）自学质疑:打开课本,看游戏内容.（二）合作释疑:分组做游戏.（三）展示评价:展示结果.流程三:歌曲学习.流程四:（一）自学质疑:阅读第四部分.（二）合作释疑:分组做游戏.（三）展示评价:小组表演.【达标检测】填空：What do you do in the evening?I _____ my homework.I _____ a book.I _____ a story.I _____ a picture for my story.课堂小结:What have you learned today? 复习今天所学知识.Lesson 11 Always do your homework.一、教学目标：1、知识目标：学生掌握四会词always ,usually ,sometimes ,never及triangle ,circle ,square ,line；学生能理解Let’s put …for …的意义；2、能力目标：学生会运用句型Do you always …? 来调查身边同学做某事的频率，提高口语表达能力，并能根据调查结果绘制图表。

Homework 2

Homework 2: 英译汉、汉译英1.省译法1）We expect that the delivery will be effected at your earliest convenience.2）It’s a pleasure for us to offer you the goods as follows.3）To give you a general idea of the various kinds of cotton piece goods now available for export, we enclose a brochure and a price list.2.增译法1）Inflation was and still is the No. 1 problem of that country.2）Courage in excess becomes foolhardiness, affection weakness, thrift avarice.3.词性转换法1）企业组织可以选择在报纸或杂志上登广告，简要介绍所招聘职位的情况并征集应聘者的自荐信。

（动词翻译成名词）2）If major problems exist and goals are not being achieved, then changes need to be made in the company’s organizational or managerial structure. （名词翻译成动词）3）We are especially grateful to you for arranging the meeting for us with the Machinery Trading Delegation at such short notice. （形容词翻译成动词）4.被动语态1）The damage was covered by the insurance company.2）The Chinese trade delegation was given a hearty welcome.3）He preferred to be assigned something concerning trade to do.4）英文版学校简介运用形容词来代替名词。

人教版七年级英语下册Unit2_SectionB_名师原创基础卷

Unit2 SectionB 名师原创基础卷一、根据句意和汉语提示写出所缺的单词1. I always have too much ________ (家庭作业) to do.2. She ________ (步行) to school every day.3. It ______ (有时) snows here in winter, but not often.4. She just wants to live a quiet ________ (生活).5. The cake ________ (尝起来) very nice. Come and have a try.6. Eat ________(很快地), or you will (将要) be late for school.二、根据句意和首字母提示写出所缺的单词1. Lisa gets up at h________ past six.2. He usually goes to work at a q________ to night.3. My mother often c________ our house on the weekend.4. You can come here e________ today or tomorrow. I’m free.5. Jack is good at sports and he can r________ very fast(快地).二、单项选择1. He has ______ quick breakfast and goes to ______ school early.A. /; /B. a; aC. /; aD. a; /2. I often do ______ homework at 6: 00 p. m.A. IB. meC. myD. myself3. Tim plays the piano ______ two hours every weekend.A. inB. atC. forD. on4. It’s good for your ______ to eat ______ food.A. health; healthyB. healthy; healthyC. health; healthD. healthy; health5. She often goes to school on her bike, but ______ she walks.A. sometimesB. usuallyC. oftenD. always6. The food ______ good. Thank you for inviting(邀请) me.A. looksB. soundsC. tastesD. feels7. I have ______ friends at school.A. lot ofB. lots ofC. a lotD. much8. My sister ______ home at 5: 00 p. m. every day.A. getB. get toC. getsD. gets to四、根据汉语意思翻译句子(每空一词)1. 那个小男孩高兴时，不是唱就是跳。

Homework 2

Homework 2 name:宋姝阳Student ID:20160531801. The one variable that stands out as the most significant explanation of large variations in living standards around the world isa. productivity.b. population.c. preferences.d. prices.2. Perry accumulated a lot of mathematical skills while in high school, college, and graduate school. Economists include these skills as part of Perry’sa. standard of learning.b. technological knowledge.c. physical capital.d. human capital.3. Which of the following items plays a role in determining productivity?a. physical capitalb. natural resourcesc. technological knowledged. All of the above are correct.4. The equipment and structures available to produce goods and services are calleda. physical capital.b. human capital.c. the production function.d. technology.5. Using the notation and production function in the text, Y/L isa. productivity.b. output.c. the availability of natural resources.d. the amount of human capital.6. If there are constant returns to scale, the production function can be written asa. xY = 2xAF(L, K, H, N).b. Y/L = A F(xL, xK, xH, xN).c. Y/L = A F( 1, K/L, H/L, N/L).d. L = AF(Y, K, H, N).7. Suppose there are constant returns to scale. Now suppose that over time a country doubles itsworkers, its natural resources, its physical capital, and its human capital, but its technology is unchanged. Which of the following would double?a.both output and productivity b.output, but not productivity c.productivity, but not output d. neither productivity nor output8. If the production function has the constant-returns-to-scale property, then it is possible that the specific form of the production function isa. Y = 4L + 2K + 3H + Nb. Y = (L + K + H + N)/4c. Y =2d.Y = 4Figure 25-1. On the horizontal axis, K/L represents capital (K) per worker (L). On the vertical axis, Y/L represents output (Y) per worker (L).9. Refer to Figure 25-1. The curve becomes flatter as the amount of capital per worker increases because ofa. increasing returns to capital.b. increasing returns to labor.c. diminishing returns to capital.d. diminishing returns to labor.10. Suppose there are constant returns to scale. Now suppose that over time a country doubles its workers, its natural resources, its physical capital, and its human capital, but its technology is unchanged. Which of the following would double?a. both output and productivityb. output, but not productivityK/LY/Lc. productivity, but not outputd. neither productivity nor output11. Other things equal, relatively poor countries tend to growa. slower than relatively rich countries; this is called the poverty trap.b. slower than relatively rich countries; this is called the fall-behind effect.c. faster than relatively rich countries; this is called the catch-up effect.d. faster than relatively rich countries; this is called the constant-returns-to-scale effect.12. If your firm’s production function has constant returns to scale, and if you doubled all your inputs, then your firm's output woulda. not change.b. increase, but by less than double.c. double.d. more than double.13. All else equal, if there are diminishing returns, then if a country raised its capital by 100 units last year and by 100 units this year,a. the increase in output was greater for this year than last year.b. the increase in output was greater last year than this year.c. the increase in output is the same in both years.d. None of the above is necessarily correct.14. In addition to investment in physical and human capital, what other public policies might a country adopt to increase productivity?improve technology to use the same labor and capital to produce more output;put out some policies which are beneficial for workers to let them work more efficient.15. Some data that at first might seem puzzling: The share of GDP devoted to investment was similar for the United States and South Korea from 1960-1991. However, during these same years South Korea had a 6 percent growth rate of average annual income per person, while the United States had only a 2 percent growth rate. If the saving rates were the same, why were the growth rates so different?the growth rate of average annual income that seems small becomes large when compounded for many years.the income of united states before 1960 is much higher the South Korea. and the saving rates were the same, of course the growth rate of south korea is higher .it shows the rate of productivity.。

Homework 2

Econ101-Homework2:Due July29th in classTiago CarusoJuly18,20131Question-Game TheoryConsider the following payoﬀgame:JohnJuneStadium Ballet Home Stadium5,50,00,0 Ballet0,03,30,0 Home0,00,01,1a)Does any of the players have a dominant strategy,which?Doesany of them have dominated strategies?b)What are the pure strategy Nash Equilibria of this game?c)Find the mixed strategy Nash Equilibrium of this game wherethe players randomize between all the strategies.2Question-Sequential Games in a Legislature Suppose now that there are100legislators in a bargaining situation, splitting a pie of size1.Player1proposes a split between the100 players,including himself(in any continuous amount,he can allocate diﬀerent shares to diﬀerent players as long as these shares add up to1).The other99players then vote on whether to split the pie in that way or not.If a majority of them(that is50)vote for the split,1then the split is implemented,each player obtaining the proposed share.If a majority vote against the split,then each player obtains 1percent of the pie.a)What is a subgame-perfect Nash equilibrium proposal of player1,and what is the resulting outcome of the game?b)Suppose now that diﬀerent players obtain diﬀerent shares(addingup to1)when the majority vote is not passed.What happens in a SPNE then?(You can describe the solution to this in words,if that is easier).3Question-Industrial OrganizationAssume there is a market for pineapple with the following demand curve:P=200−2Q.Where Q is the total quantity of pineapples produced.Assume theﬁrms who produces pineapple all have the following cost of production c(q)=4.qa)Assume the market is controlled by a pineapple monopolist.Find the the quantity,the price,ad the proﬁt of the monopoly.b)Assume now there are twoﬁrms in this market A and B,withthe same cost industry and they compete via Bertrand style.In the case they set the same price they split the market equally.Find the prices the constitute the Nash Equilibrium of this game,the quantity produced and the proﬁt each have.c)Assume instead that theﬁrms have diﬀerent costs c A(q)=4q aand c B(q)=6q B and they still compete via Bertrand.Find the prices Nash Equilibrium of this game,the quantity produced and the proﬁt each have.d)Now go back to the assumption that A and B have the samecost c(q)=4q,but now they compete via Cournot Style.Find the quantity,the prices and the proﬁt they have in equilibrium.24Question-Repeated DuopolyNow he have exactly the same problem as before,a duopoly with same demand curve,identical cost structure for bothﬁrm A and B, but now they are going to play the game repeatedly inﬁnitely. Assume they are both have the same discount rate for future payoﬀs δ.a)Now they decide to collude and to chose in every period thequantity that maximizes the overall proﬁt in one period.Which quantity they will produce,what will be theﬁnal price and the proﬁt each will get(assume they will split the collusion proﬁt equally).b)If they are competing via Bertrand style and Firm A decidesto break the agreement what proﬁt wouldﬁrm A get?c)If they are competing via Cournot style and Firm A decides tobreak the agreement what proﬁt wouldﬁrm A get?d)Assume now they are playing inﬁnitely and eachﬁrm is usingthe trigger strategy1.What is the minimum discount rate that can sustain the collusion as a SPNE if the are competing via Bertrand?What if the are competing via Cournot?1In class I called this strategy trim strategy.It was a translation mistake.The name in english is trigger strategy.The idea is the same.Start cooperating and keep cooperating while you only observe cooperation from both sides.You observe something diﬀerent never cooperate anymore.3。

Homework2

Solution of Homework 2Dragon:4.2.1, 4.2.4, 4.2.5, 4.2.74.3.14.4.3Tiger:3.4, 3.5, 3.6, 3.7Dragon Book4.2.1 Considering the context-free grammar:and the string aa+a*(1)Give a leftmost derivation of the string(2)Give a rightmost derivation of the string(3)Give a parse tree for the string(4)Is the grammar ambiguous?(5)Describe the language generated by the grammar答案：(1)(2)(3)SSS* S S+a aa(4)没有二义性(5)只含+和*，操作数均为a的算术表达式的后序遍历4.2.4 Show that [] and {} extension do not add power to grammars.答案: S->[a] 等价于S->S->{a} 等价于S->S’S’ -> ’4.2.5 Use notations from 4.2.4 to simplify the following grammar:答案：stmt-> if expr then stmt [else stmt]| begin stmtList endstmtList -> stmt{;stmt}4.2.7 A grammar symbol X (terminal or non-terminal) is useless if there is no derivation of the form . That is, X can neverappear in the derivation of any sentence.(1) Give an algorithm to eliminate all productions contains useless symbols(2) Apply your algorithm to grammar:S-> 0 | AA-> ABB->1答案：(1)注意：首先要考虑产生式是否终止，其次考虑是否在产生式中出现(a)求出非终结符是否终止对于每个非终结符X若X存在产生式不含非终结符，则X终止否则，对于X的每个产生式中的非终结符，若含有X，则X不终止，否则，若每个非终结符均终止，则X终止，否则不终止(b)去掉useless令文法G为空从起始的非终结符X开始对于X的每个产生式P，若P不含非终结符，则将X->P加入文法G否则，若P中每个非终结符均终止，则将X->P加入文法S’，并对每个非终结符X’递归调用这个过程返回文法G算法并不唯一，这只是一个很罗嗦的实现(2)对于这里给出的算法首先S和B终止，A不终止然后从S->0开始，S->0加入文法GS->A,A不终止，至此递归调用结束所以最终返回结果S->04.3.1 The following grammar for regular expressions over symbols a andb only.(1)Left factor this grammar(2)Does left factoring make the grammar suitable for top-down parsing?(3)Eliminate left recursion from the original grammar(4)Is the resulting grammar suitable for top-down parsing?答案：(1)rexpr -> rexpr + rterm | rtermrterm -> rterm rfactor | refactorrfactor -> rfactor * | rprimaryrprimary-> a| b(2)不可以，因为存在左递归(3)rexpr -> rterm rexpr’rexpr’-> + rterm rexpr’ |rterm-> rfactor rterm’rterm’ -> rfactor rterm’ |rfactor-> rprimay rfactor’rfactor’-> *rfactor’ |rprimary-> a | b(4)可以4.4.3 计算练习4.2.1中文法的FIRST和FOLLOW集合答案：FIRST(S)=aFOLLOW(S)= $a+*Tiger Book3.4 Write a grammar that accepts the same language as Grammar 3.1, but that us suitable for LL(1) parsing. That is, eliminate the ambiguity, eliminate the left recursion, and (if necessary) left-factor.Grammar 3.1:S -> S; SS -> id := ES -> print ( L )E -> idE -> numE -> E + EE -> ( S , E )L -> EL -> L , EAnswer:S -> id := E ; SS -> print ( L ) ; SE -> ( S , E )E -> id E’E -> num E’E’ -> εE’ -> + EL -> E L’L’ ->εL’ -> , E L’3.5 Find nullable, FIRST, and FOLLOW sets for the grammar; then construct the LL(1) parsing table.S’ -> S $S ->S -> X SB -> \ begin { WORD }E -> \ end { WORD }X -> B S EX -> { S }X -> WORDX -> beginX -> endX -> \ WORDAnswer:3.6a. Calculate nullable, FIRST, and FOLLOW for this grammar:S -> u B D zB -> B vB -> wD ->E FE -> yE ->F -> xF->b. Constructor the LL(1) parsing table.c. Give evidence that this grammar is not LL(1).d. Modify the grammar as little as possible to make an LL(1) grammar that accepts the same language.Answer:a)c) b中构建的LL(1)转换表中含有包含多个语法规则的表项，所以该语法不是LL(1)语法。

Homework2

= m1 d, n = n1 d, where d = (m, n). We claim that o(ab) = m1 n1 d. m n d Indeed, (ab) =a b = (am )n (bn )m = 1, so o(ab)|m1 n1 d. sm Set s = o(ab). Since 1 = (ab) = a sm b sm = b sm and 1 = (ab) sn = a sn b sn = a sn , so n| sm and m| sn hold. Then n1 | sm1 and m1 | sn1 together imply that n1 | s and m1 | s since (m1 , n1 ) = 1. Furthermore, m1 n1 | s. Thus, o(ab) = km1 n1 for some positive integer k, k|d . In particular, if (m, n) = 1, then o(ab) = mn.
→
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2
6. Let W be the additive subgroup of linear equations AX form a coset of W .
Rm
of solutions of a system of homogeneous
=
0. Show that the solutions of an inhomogeneous system AX
1
9. Consider the set U of real 3
(a) Prove that U is a subgroup of S Ln (R). (b) Prove or disprove: U is normal. (c) Determine the center of U . Proof (a) It is easily veri ed that U is closed with respect to the multiplication of matrices. Moreover, the identity I3 is in U , and the inverse matrix of every element of U is its adjoint matrix, which is also contained in U . So U is a subgroup of S Ln (R). (b) U isn't a normal subgroup of S Ln (R). For example, choose

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