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六、(10分)已知语言L={anbbn|n>=1),构造一个文法能产生该语言。其中n为上标

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第1题


六、短文改错: (共10小题,每小题1分,共10分)
文中共有10处语言错误。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加上一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1. 每处错误及其修改均仅限一词。
2. 只允许修改10处,多者(从第11处起)不记分。
Boys and girls,
Attention, please. I’ve got a good news for you. A new book How to Improve Your English is now on sell in a nearby bookstore. I think the book is great help to our English study and suitable for we middle school students. There are many practical examples in the book, included a lot of pictures. The price is five yuan each. Those, who wants to buy the book, should go here as soon as possible and get your money ready for. By eleven o’clock tomorrow morning the money should be give either to me nor to our monitor. We’ll go to buy the books tomorrow afternoon.
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第2题

阅读以下说明和C语言函数,将应填入(n)处。
【说明】
已知1900年1月1日是星期一,下面的函数count_5_13(int year)用于计算给定的年份year中有几个“黑色星期五”。“黑色星期五”指既是13日又是星期五的日期。
函数count_5_13(int year)首先算出年份year的1月13日是星期几,然后依次计算每个月的13日是星期几,若是星期五,则计数。
程序中使用了函数isLeapYear(int year),其功能是判断给定年份是否为闰年,返回值为1(或0)表示year是(或不是)闰年。
【C语言函数】
int count_5_13(int year)
{
int date; /*date为0表示星期日,为1~6分别表示星期一至星期六*/
long days=0; /*days记录天数*/
int m,y,c=0; /*c用于表示黑色星期五的个数*/
if (year<1900) return-1;
/*计算从1900年1月1日起至给定年份year的1月13日间隔的天数*/
days=12;
for (y= 1900; y < year; y++) {
days +=365;
if (isLeapYear(y))(1);
}
date=((days%7) +1) %7; /*算出给定年份year的1月13日是星期几*/
c=((2)) ?1:0;
for(m=1;(3);m++) {
switch (m) {
case 1:case 3: case 5: case 7:case 8:case 10:case 12:
days=31; break;
case 4: case 6: case 9: case 11:
days=30; break;
case 2:days=28;
if((4)) days=29;
break;
}/*end of switch*/
date=((days%7)+ (5) )%7;
if (date==5) c++;
} /*end of for*/
return c;
}


请帮忙给出正确答案和分析,谢谢!
点击查看答案

第3题

.
第二节:任务型阅读:Alan等5个语言学习者都有条件通过计算机辅助学习来提高语言水平。下面是六个最新开发的语言辅助学习软件。请根据不同学习者的特点和要求,选出最合适他们使用的软件。其中有一项选择是多余的。
A.Oxford phrasebuilder Genie
The phrasebuilder Genie sits on top ofyour word processor while you are writing or on top of a webpage you are reading.When you come across a word you are not sure of, you click on it and the meanings will appear in the Genie,taken from the Advanced Learner's dictionary.There’s a lot more too:there’s a massive exercise bank of over 4,000 exercises drawn from the Advanced Leamer’s Dictionary,which are excellent for vocabulary development.The program also includes study pages which can be printed out and photocopied.
B.Word Invaders
In this version,the aliens(外星人)are in the form of words,which come down towards you in groups of four,in a line.Three of them are similar,one is either different, or incorrect English.You must choose which one and destroy it.If you choose correctly,you gain points;if you choose incorrectly,you lose them.There are six levels,from Beginner to Advanced,and five different sections to overcome.The program has a word store of 2400 different vocabulary items.
C.Vocabulary Builder
Using Vocabulary Builder is a fun way for young children to learn basic vocabulary.The program combines pictures,text and sound to make an interactive flash card system which teachers can use to help in basic language teaching.Students can choose whether to learn vocabulary,play vocabulary games or record their own story using the vocabulary they’ve learned.
D.Beat the Clock
The name says it all!This is a game designed to boost students’vocabulary levels by giving a definition ofa word,which they must type in the box.However,they don’t have time to sit and think for ever about the word,because they are playing against the clock The quicker they can guess the word,the beret the score.The program is divided into six levels,from beginner to advanced,and tests all parts of English vocabulary.
E.Exercise Generator
The generator is for busy teachers who want to produce really professional-looking,paper-based reading and vocabulary activities,tests,homework and exam practice material for their students.It enables you to do it in minutes!It’s also an extremely fast and economical way of building up resources for a library or self access centre.
F Tell MeMore Pro
Tell Me More Pro,covers key areas of English and a range of other languages including Spanish and German The program involves oral and written expressions,comprehension,pronunciation,vocabulary and grammar.From the menu,students can choose the lesson in which they want to work and then pick from a variety of activities
61.Alan is an English teacher in a high school.He intends to develop his career by improving his language skills,especially his oral English Besides,he wants to learn some other languages so that he will have less difficulty in communicating with local people when he travels in Europe this summer.
62.Jennifer,a linle schoolgirl,finds English words difficult to remember.She is good at drawing as well as dancing.She is fond of listening to stories and telling stories.Her parents is trying to find all interesting way to aid her English study
63.Bob has a girlfriend,teaching English at a language centre.He always finds they have had little time to be together because his girlfriend is always occupied with her work.He is determined to find all effective teaching tool to lighten her burden from her work.
64.Jack,a business man,usually writes e-mails to his business partners around the world.But he is often confused when choosing the proper words in his writing.He needs an dictionary to be installed into the computer so that it can be convenient for him to find the exact meaning of a word.He also hopes to enlarge his vocabulary by doing exercises in the computer when he is flee.
65.Tom,a school boy,lost his interest in English because he wastes too much time playing computer games and reading science fiction.His teacher finds vocabulary is a big problem to him.So his parents arc wondering how they can help improve his English as well as develop his interest in the subject.
点击查看答案

第4题


六、短文改错(满分10分)
此题要求改正所给短文中的错误。文中共有10处语言错误。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
I remember how I used to playing with my friends during my childhood. We always had a great fun. We played many games which we had to use our imagination. By playing those game, we learned how to compete, organize groups, and creative. Now, the situation is differently. Children are still playing, but instead playing outdoors, they are playing indoors with high-tech toys. This means we are staying inside the house all the times, and usually in front of a TV. So they are becoming more lonely, and making less friends.
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第5题


六、短文改错(满分10分)
此题要求改正所给短文中的错误。文中共有10处语言错误。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1.每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
I remember how I used to playing with my friends during my childhood. We always had a great fun. We played many games which we had to use our imagination. By playing those game, we learned how to compete, organize groups, and creative. Now, the situation is differently. Children are still playing, but instead playing outdoors, they are playing indoors with high-tech toys. This means we are staying inside the house all the times, and usually in front of a TV. So they are becoming more lonely, and making less friends.
点击查看答案

第6题


第六节:短文改错(共1篇,10错误;满分10分)
假如英语课上老师要求同学们交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,要求你在错误的地方增加、删除或修改某个单词。
增加:在缺词处加一个漏字符号(/\),并在其下面写上该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写上修改后的词。
注意:1.每处错误及其修改均仅限一词:
2.只允许修改10处,多者(从第11处起)不计分。
I have always quite irrationally prided myself for my good health, for I only occasionally had to take a day off the work when I have a cold. So I was quite offended by my doctor who, when we ran to each other in the street the other day, taking one look at me and told me that I was definite fat and that if I did not make effort to lose some weight, I could expect to have a heart attack very long. He added that, like many middle-aged man, I led an inactive life. It was true that I had been gotten fatter, but it was because I was getting older.
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第7题

试题二(共 15 分)
阅读以下说明和 C 语言函数,将应填入 (n) 处的字句写在答题纸的对应栏内。
[说明]
已知 1900 年 1 月 1 日是星期一,下面的函数 count_5_13(int year)用于计算给定的年份 year中有几个“黑色星期五” 。 “黑色星期五”指既是 13 日又是星期五的日期。
函数 count_5_13(int year)首先算出年份 year 的1月 13 日是星期几,然后依次计算每个月的 13 日是星期几,若是星期五,则计数。
程序中使用了函数 isLeapYear(int year),其功能是判断给定年份是否为闰年,返回值为 1(或 0)分别表示 year 是(或不是)闰年。
[C 语言函数]
int count_5_13(int year)
{
int date; /* date 为 0 表示星期日,为 1~6 分别表示星期一至星期六 */
long days = 0; /* days 记录天数 */
int m, y, c = 0; /* c 用于表示黑色星期五的个数 */

if (year < 1900) return -1;

/*计算从 1900 年 1 月 1 日起,至给定年份 year 的 1 月 13 日间隔的天数*/
days = 12;
for (y = 1900; y < year; y++) {
days += 365;
if (isLeapYear(y)) (1) ;
}
date = ((days % 7) + 1) % 7; /* 算出给定年份year 的1 月 13 日是星期几 */
c = ( (2) ) ? 1 : 0;
for(m = 1; (3) ; m++) {
switch (m) {
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
days = 31; break;
case 4: case 6: case 9: case 11:
days = 30; break;
case 2: days = 28;
if ( (4) ) days = 29;
break;
}/* end of switch*/
date =((days % 7) + (5) ) % 7;
if (date == 5) c++;
} /* end of for*/
return c;
}


请帮忙给出正确答案和分析,谢谢!
点击查看答案

第8题

阅读以下说明和C语言函数,填补空缺。
[说明]
已知1900年1月1日是星期一,下面的函数count_5_13(int year)用于计算给定的年份year中有几个“黑色星期五”。“黑色星期五”指既是13日又是星期五的日期。
函数count_5_13(int year)首先算出年份year的1月13日是星期几,然后依次计算每个月的13日是星期几,若是星期五,则计数。
程序中使用了函数isLeapYear(int year),其功能是判断给定年份是否为闰年,返回值为1(或0)分别表示year是(或不是)闰年。
[C语言函数]
int Count_5_13(int year)
{
int date; /*date为0表示星期日,为1~6分别表示星期一至星期六*/
long days=0; /*days记录天数*/
int m, y, c=0; /*c用于表示黑色星期五的个数*/
if(year<1900) return-1;
/*计算从1900年1月1日起,至给定年份year的1月13日间隔的天数*/
days=12;
for(y=1900; y<year; y++) {
days +=365;
if (iSLeapYear(Y)) ________ ;
}
date=((days%7)+1)%7;
/*算出给定年份year的1月13日是星期几+/
c=( ________ )?1:0;
for(m=1; ________ ; m++) {
switch(m) {
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
days=31; break;
case 4: case 6: case 9: case 11:
days=30; break;
case 2: days=28;
if( ________ )days=29;
break;
}/*end of switch*/
date=((days%7)+ ________ )%7;
if (date==5) c++;
} /*end of for*/
return c;
}


请帮忙给出正确答案和分析,谢谢!
点击查看答案

第9题


第二节: Alan等5个语言学习者都想借助于计算机辅助学习来提高语言水平。下面是六个最新开发的语言辅助学习软件。请阅读不同学习者的特点与要求和六个学习软件的相关信息,并按照要求匹配信息。注意,其中有一项是多余的。
61. Alan is an English teacher in a high school. He intends to develop his career by improving his languages skills, especially his oral English. Besides, he wants to learn some other languages so that he will have less difficulty in communicating with local people when he travels in Europe this summer.
62. Jennifer, a little school girl, finds English words difficult to remember. She is good at drawing as well as dancing. She is fond of listening to stories and telling stories. Her parents are trying to find all interesting ways to aid her English study.
63. Bob has a girlfriend teaching English at a language center. He always finds they have had little time to be together because his girlfriend is always occupied with her work. He is determined to find all effective teaching tools to lighten her burden from her work.
64. Jack, a businessman, usually writes e-mails to his business partners around the world. But he is often confused when choosing the proper words in his writing. He needs a dictionary to be installed into the computer so that it can be convenient for him to find the exact meaning of a word. He also hopes to enlarge his vocabulary by doing exercises in the computer when he is free.
65. Tom, a school boy, lost his interest in English because he wastes too much time playing computer games and reading science fiction. His teacher finds vocabulary is a big problem to him. So his parents are wondering how they can help improve his English as well as develop his interest in the subject.
Oxford phrasebuilder Genie
The phrasebuilder Genie sits on top of your word processor while you are writing or on top of a webpage you are reading. When you come across a word you are not sure of, you click on it and the meanings will appear in the Genie, taken from the Advanced Learner’s dictionary. There’s a lot more too; there is a massive exercise bank of over 4,000 exercises drawn from the Advanced Learner’s Dictionary, which is excellent for vocabulary development. The program also includes study pages which can be printed out and photocopied.
Word Invaders
In this version, the aliens (外星人) are in the form of words, which come down towards you in groups of four, in a line. Three of them are similar, one is either different, or incorrect English. If you choose correctly, you gain points; if you choose incorrectly, you lose them. There are six levels, from Beginner to Advanced, and five different sections to overcome. The program has a word store of 2,400 different vocabulary items.
Vocabulary Builder
Using Vocabulary Builder is a fun way for young children to learn basic vocabulary. The program combines pictures, text and sound to make an interactive flash card system which teachers can use to help in basic language teaching. Students can choose whether to learn vocabulary, play vocabulary games or record their own story using the vocabulary they’ve learned.
Beat the Clock
The name says it all! This is a game designed to boost students’ vocabulary levels by giving a definition (定义) of a word, which they must type in the box. However, they don’t have time to sit and think forever about the word, because they are playing against the clock. They will get a high score only if they can guess the word quickly. The program is divided into six levels, from beginner to advanced, and tests all parts of English vocabulary.
Exercise Generator
The generator is for busy teachers who want to produce really professional-looking, paper-based reading and vocabulary activities, tests, homework and exam practice material for their students. It enables you to do it in minutes! It’s also an extremely fast and economical way of building a resource for a library or self access centre.
Tell Me More Pro
Tell Me More Pro, covers key areas of English and a range of other languages including Spanish and German. The program involves oral and written expressions, comprehension, pronunciation, vocabulary and grammar. From the menu, students can choose the lesson in which they want to work and then pick them from a variety of activities.
点击查看答案

第10题

汉语是世界主要语言之一,也是联合国六种正式工作语言之一。
点击查看答案
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