填空4
大学英语六级完形填空训练(4)
If you were to begin a new job tomorrow, you would bring with you some basic strengths and weaknesses. Success or 1 in your work would depend, to 2 great extent, 3 your ability to use your strengths and weaknesses to the best advantage. 4 the utmost importance is your attitude. A person 5 begins a job convinced that he isn't going to like it or is 6 that he is going to ail is exhibiting a weakness which can only hinder his success. On the other hand, a person who is secure 7 his belief that he is probably as capable 8 doing the work as anyone else and who is willing to make a cheerful attempt 9 it possesses a certain strength of purpose. The chances are that he will do well。
10 the prerequisite skills for a particular job is strength. Lacking those skills is obviously a weakness. A bookkeeper who can't add or a carpenter who can't cut a straight line with a saw 11 hopeless cases. This book has been designed to help you capitalize 12 the strength and overcome the 13 that you bring to the job of learning. But in groups to measure your development, you must first 14 stock of somewhere you stand now. 15 we get further along in the book, we'll be 16 in some detail with specific processes for developing and strengthening 17 skills. However, 18 begin with, you should pause 19 examine your present strengths and weaknesses in three areas that are critical to your success or failure in school: your 20 , your reading and communication skills, and your study habits.1.A.improvement B.victory C.failure D.achievement2.A.a B.the C.some D.certain3.A.in B.on C.of D.to4.A.Out of B.Of C.To D.Into5.A.who B.what C.that D.which6.A.ensure B.certain C.sure D.surely7.A.onto B.on C.off D.in8.A.to B.at C.of D.for9.A.near B.on C.by D.at10.A.Have B.Had C.Having D.Had been11.A.being B.been C.are D.is12.A.except B.but C.for D.on13.A.idea B.weakness C.strength D.advantage14.A.make B.take C.do D.give15.A.as B.till C.over D.out16.A.deal B.dealt C.be dealt D.dealing17.A.learnt B.learned C.learning D.learn18.A.around B.to C.from D.beside19.A.to B.onto C.into D.with20.A.intelligence B.work C.attitude D.weakness答案与解析1.【答案】C【解析】本句的意思是：“成功或失败在很大程度上取决于你是否能扬长避短。
六年级英语上册综合测试卷(一)附答案
六年级英语上册综合测试卷（一）一、选择题( )1。
I’m hungry now. Let’s go to the _____.A. restaurantB. museumC. garden( ）2。
——- What does Mo Yan do？—-- He is a _____.A. writer B。
teacher C. cleaner( ）3。
In the USA，people on the bikes must wear _____。
A。
jackets B。
hats C。
helmets（）4。
-—- _____—-— You should wear warm clothes。
A。
How do you feel？ B. What should you do?C. What should I do？( )5.The cat is _____。
Sarah is sad。
A。
well B。
good C。
ill（）6.You should _____ more water.A. drink B。
drinks C. drinking（ )7.Don't _____ football on the road.A。
play B。
plays C. playing( ）8.--— What are they _____ about?-—- Computers。
A. talkB. talkingC. talks( )9。
--— How do you feel now?—-- Not _____。
I should see a doctor。
A。
ill B。
well C。
good（ )10.We can go to the zoo _____ time。
A. /B. the next C。
next( ）11。
--- What _____ I do?--— You should see a doctor.A. doB. should C。
数据库技术与应用试卷题及答案4套
数据库技术与应用试卷题及答案4套第一套1、（4分）【单选题】在SQL语言中，修改表中的数据时，应使用的命令是（）A、U PDATEB、I NSERTC、A LTERI）、MODIFY参考答案：A解析：无2、（4分）【单选题】将SQL Server的数据库转换成ACCESS数据库,可以使用（）来实现。
A、订阅/发布B、数据备份/恢复C、数据分离/附力口D、DTS导入/导出参考答案：D解析：无3、（4分）【单选题】下面说法错误的是（）A、默认值约束指定在输入操作中没有提供输入值时，系统将自动提供给某列的默认值。
B、当某列被设置为非空时，必须为其指定一个值，除非已经为该列定义了默认值值约束。
C、默认值约束使用default关键字。
D、以上都不正确。
参考答案：D解析：无4、（4分）【单选题】每个数据库有且只能有一个（）。
A、次数据文件B、主数据文件C、日志文件D、其他参考答案：B解析：无5、（4分）【单选题】SQL 语言中，删除一个表的命令是（） A 、 D ELETEB 、 D ROP TABLEC 、 C LEAR TABLED 、 R EMOVE参考答案：B解析：无6、（4分）【单选题】字符串常量使用（ ）作为定界符。
A 、单引号B 、双引号C 、方括号D 、花括号参考答案：A解析：无7、（4分）【单选题】唯一键约束使用关键字（ ）实现uniqueprimary keydefualtforeign key参考答案：A 解析：无8、（4分）【单选题】下列关于唯一约束的说法中不正确的是:A 、可以为表定义多个唯一约束B 、唯一约束的列允许取空值C 、可以建立在一列或几列的组合上D 、可以作为主键使用参考答案：D解析：无9、（4分）【单选题】为了防止一个事务在执行时被其他事务干扰，应采取的措施是（）A 、完整性控制B 、访问控制 A 、 B 、 CC、安全性控制 1）、并发控制参考答案：D 解析：无10、（4分）【单选题】当数据库损坏时，数据库管理员可通过何种方式恢复数据库（）A、事务日志文件B、主数据文件C、DELETE 语句【）、联机帮助文件参考答案：A解析：无11、（5分）【填空题（主观）］数据完整性实质，存储在数据库中的数据正确无误并且相关数据具有一致性，根据完整性机制所作用的数据库对象和范围不同，可以分为：［填空（1）］，［填空（2）］,［填空（3）］,［填空（4）］四种，其中标志列可以实现［填空（1）］数据完整性。
2020年高考英语语法填空练习4--含答案详解
语法填空练习（四）一、语法填空The Water Splashing (泼洒) Festival of the Dai ethnic minority (少数民族) falls on April 13th to April 15th. It is the most important festival __1__ (observe) by the Dai people of Xishuangbanna, Yunnan Province. It is the New Year for the Dai, a festival to send off the old and greet the new.During the festival, __2__ lasts three days, people are dressed in their best clothes and participate in a variety of rich and colourful __3__ (activity). Dragon boat racing, fireworks displays and other performances such as Peacock Dance __4__ (hold) on the first day. And the most popular event __5__ (be) watersplashing on the second day. People splash water on each other, hoping to take away sicknesses and disasters. The wetter you get, the __6__ (lucky) you will be. The last day is usually for the young people to play games as a way __7__ (express) their love for each other.The Water Splashing Festival __8__ (vivid) exhibits the Dai’s respect for water and the culture of music, dance, food, and costumes. It is also a cultural bridge __9__ Xishuangbanna and Southeast Asian countries that share __10__ same festival culture of watersplashing.语篇解读：本文是一篇说明文。
中考英语语篇填空专项4 带答案
The Life of Mao DunThis year marks the 120th anniversary of Mao Dun's birth.He is one of the most famous novelists of modern China.Mao Dun was born in 1896.He began his career as a 1 in 1916. In 1920,he translated The Constitution of the Communist Party of the Soviet Union(《苏联共产党党章》）into Chinese.One year2 ,in Shanghai,Mao Dun became the3 writer to join the Communist Party of China.Hewas China's first minister of culture and was elected chair-man of the Chinese Writers' Association(中国作家协会)in 1978.On March 27,1981,he 4 of illness in Beijing.During the period from 1974 5 his death, Mao Dun lived and worked in Beijing, and finished writing his reminiscences(回忆录).During his last years,Mao Dun had difficulty 6 around and did most of his reading and writing in his bedroom.A single bed,a pillow,sheet and quilt remain positioned 7 they were before his death.Some books that he often read during his last 8 are piled on a bedside table.Mao kept pens and paper beside him at night so that he could write down 9 thoughts as he woke up at midnight for reading.On his deathbed,he donated royalties(版税）of 250,000 yuan to the Chinese Writers'Association as a fund to establish the Mao Dun Literature Prize(茅盾文学奖）as a way to encourage10 Chinese novelists.2.语篇填空二：阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整。
中考英语复习完形填空选练题4(含答案)
2019年中考英语：完形填空选练题（4）【实战训练】 A（2019选练）通读短文，掌握大意，从所给的选项中选出一个最佳选项。
There is good news for the children in the countryside. We will never forget thegirl 1 big eyes. Her big eyes are 2 us her dream:I wish to 3 ! In China, there are still many girls and boyslike 4 . They want to go to school, but their 5are too poor. If the family has two or three children 6 it is harderto pay(付钱) the money for 7 of them. So the parents oftenask 8 to stay at home, and boys to go to school.Now they needn't the money. From 2006 on, children can go to school for free in some poor places. They don't have to pay for books and other things. Someof them can even get money from the local government(政府 ) to make theirlife 9 . Soon, each child in the countryside can go to school forfree. All families are very happy with the news. It is 10 great.1. A. with B.onC.toD. in2. A. saying B.tellingC.speaking D. talking3. A. go to workB. go tobed C. go toschool D. go home4. A. him B.herC.his D. hers5. A. B. C. D. familiescities cities houses6. A. everyone B.bothC.every D. all7. A. teachers B.girlsC.boys D. each child8. A. look up B. turn on C. worryabout D. make sure9. A. better B.shorterC.longer D. worse10. A. not B.neverC.hardly D. really【答案】（1）A；（2）B；（3）C；（4）B；（5）D；（6）D；（7）B；（8）C；（9）A；（10）D；【考点】日常生活类，社会现象类【解析】【分析】本文讲述的是我国的教育扶贫政策。
高二英语百日训练之完形填空(4)含答案详解
高二英语百日训练之完形填空（4）含答案详解【题文】When I was 13 my only purpose was to become the star on our football team. That meant ___36___ Miller King, who was the best ___37___ at our school.Football season started in September and all summer long I worked out. I carried my football everywhere for ___38___.Just before September, Miller was struck by a car and lost his right arm. I went to see him after he came back from ___39___. He looked very ___40___, but he didn’t cry.That season, I ___41___ all of Miller’s records while he ___42___ the home games from the bench. We went 10-1 and I was named most valuable player,___43___ I often had crazy dreams in which I was to blame for Miller’s ___44___.One afternoon, I was crossing the field to go home and saw Miller _____45_____ going over a fence—which wasn’t _____46_____ to climb if you had both arms. I’m sure I was the last person in the world he wanted to accept _____47_____ from. But even that challenge he accepted. I _____48_____ him move slowly over the fence. When we were finally _____49_____ on the other side, he said to me, “You know, I didn’t tell you this during the season, but you did _____50_____ .Thank you for filling in for _____51_____.”His words freed me from my bad _____52_____. I thought to myself, how even without an arm he was more of a leader. Damaged but not defeated, he was _____53_____ ahead of me. I was right to have _____54_____ him. From that day on, I grew _____55_____ and a little more real.36. A. cheering for B. beating out C. relying on D. staying with37. A. coach B. student C. teacher D. player38. A. practice B. show C. comfort D. pleasure39. A. school B. vacation C. hospital D. training40. A. pale B. calm C. relaxed D. ashamed41. A. held B. broke C. set D. tried42. A. reported B. judged C. organized D. watched43. A. and B. then C. but D. thus44. A. decision B. mistake C. accident D. sacrifice45. A. stuck B. hurt C. tired D. lost46. A. steady B. hard C. fun D. fit47. A. praise B. advice C. assistance D. apology48. A. let B. helped C. had D. noticed49. A. dropped B. ready C. trapped D. safe50. A. fine B. wrong C. quickly D. normally51. A. us B. yourself C. me D. them52. A. memories B. ideas C. attitudes D. dreams53. A. still B. also C. yet D. just54. A. challenged B. cured C. invited D. admired55. A. healthier B. bigger C. cleverer D. cooler【答案】36. B 37. D 38. A 39. C 40. A 41. B 42. D 43. C 44. C 45. A 46. B 47. C 48. B 49. D 50. A 51. C 52. D 53. A 54. D 55. B【解析】这是一篇故事。
4填空题
1.图SK_01所示符号各表示哪种沟道的结型场效应管？其箭头方向代表什么？1.为什么结型场效应管的输入电阻比三极管的输入电阻高得多？2.结型场效应管作放大器件用时，它的栅极与沟道间的PN结能加正向偏置电压吗？为什么？3.N沟道与P沟道结型场效应管产生预夹断的条件分别是什么？预夹断与全夹断有什么区别？选择正确答案填空1. 场效应管是利用外加电压产生的____来控制漏极电流的大小的。
A. 电流B. 电场C.电压2. 场效应管是____器件，而三极管是____器件。
A. 电压控制电压B. 电流控制电压C. 电压控制电流D. 电流控制电流3. 结型场效应管利用删-源极间所加的____来改变导电沟道的电阻。
A. 反偏电压B. 反向电流C. 正偏电压D. 正向电流4. 场效应管漏极电流由____的漂移运动形成。
A. 少子B.电子C. 多子D. 两种载流子5. P沟道结型场效应管的夹断电压V p为____,漏-源电压v DS为____。
A. 正值B. 负值C. v GSD. 零6. P沟道结型场效应管发生预夹断时，漏-源极间电压____。
A. v DS = v GS -V PB. v DS ≥v GS -V PC. |v DS| = |v GS -V P|D. |v DS| ≥|v GS -V P|7. P沟道结型场效应管工作在放大区的条件是____。
A. 0 ≤v GS < V P或|v DS| ≥|v GS - V P|B. V P < v GS ≤0 且v DS ≥v GS - V PC. 0 ≤v GS < V P且v DS ≥v GS - V PD. 0 ≤v GS < V P且|v DS| ≥|v GS - V P|答案：1. B 2. C,D 3. A 4. C 5. A,B 6. C 7. D1.试判断图SK_01所示输出特性曲线各对应哪种器件。
如是结型场效应管，请说明它属于何种沟道。
2019中考英语 短文首字母(综合)填空(4) 人教新目标版(含答案).doc
2019中考英语短文首字母（综合）填空（4）及答案第一部分The whole school was talking about the winter camp. And everyone was looking forward to it 1. e me because I thought I would get homesick.When arriving at the camp, we were 2. a to ski down to field by the coach. I skied carefully, but I still hit a piece of ice and fell down.“Ha! Ha!”Behind 3. m , somebody started laughing. I looked back to see who was 4. l at me. To my 5. s , I saw a girl in the same embarrassing position that I was in. “I thought I’d be bad at this, but it 6. s more difficult than I expected!”she said. Suddenly, I started laughing, too. After being so 7. a of falling, it was a comfort that made me not fear it anymore.The next day, 8. t I didn’t want to go ski jumping, I was chosen to do that first. But when my 9. f left the ground, I felt I was flying and it was wonderful.Just do your 10. b to meet every challenge. You’ll never imagine how much you will get.【主旨大意】本文是一篇记叙文。
专题14 语法填空训练(4)-2023年高考英语时文语法填空专练
专题14 语法填空训练（4）1.阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
China is the world’s___1___(large) market for industrial robots, with its production___2___ (reach) about 366,000 units in 2021, a 10-fold increase from 2015. The industrial robot application covers more than 60 industrial___3___ (category)in the national economy. In 2021, the density of manufacturing robots___4___(be)300 units per 10,000 people, about 13 times more than in 2012.___5___(current),there are over 439,000 service robot-related companies___6___ (include) in China, among___7___more than 79,000 were newly registered this year, from January to August. The ministry will improve the standards, accelerate efforts to___8___ (strong) weak spots in special materials, develop high-quality businesses,___9___create a good environment ____10____the robot industry.【答案】1．largest2． reaching3． categories4．was5．Currently6．included7．which8．strengthen9．and10.for【导语】本文是一篇说明文。
2022高考英语二轮：短文语法填空练练(4)参考答案
2022高考英语二轮：短文语法填空练练（4）参考答案语法填空。
阅读下面材料，在空白处填入适当内容(不多于3个单词)或括号内单词的正确形式。
【全国新课标卷题型】One day, about ten years ago, while working at the cash register in the gift shop at my University Museum of Natural History, I saw an elderly couple come in with a little girl in a wheelchair. As I looked__1__(close) at this girl, I found that she was fixed on her chair. I then realized she had no arms or legs, just a head, a neck and upper body，__2__(dress) in a little white skirt. As the couple wheeled her up to me, I turned my head toward the girl. When I took the money__3__her grandparents, I looked back at the girl, who was giving me the most optimistic, largest smile I had ever seen. All of __4__sudden, her handicap was gone and all I saw was this beautiful girl，__5__smile just melted me__6__almost instantly gave me a completely new sense of__7__life is all about. She took me from a poor, unhappy college student and__8__(bring) me into her world; a world of smiles, love and__9__(warm). I'm a successful business man now and whenever I think about the troubles of the world, I think about that little girl and the remarkable lesson about life that she taught__10__.1．______ 2.______ 3.______ 4.______ 5.______6．______ 7.______ 8.______ 9.______ 10.______答案：1．closer/closely更近地看，表示与上文比较，或直接用副词。
2022高考英语二轮：(衡水市)完形填空训练(4)及答案
2022高考英语二轮：（衡水市）完形填空训练（4）及答案完形填空。
阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。
I always long for romantic moments, like a little girl longing for candies．However, my husband is my complete 1 . His inability to bring romantic moments into our life has made me get tired of our 2 . One day, I finally told him that I wanted a divorce.“Why?” he asked, 3 .“I am tired; there are no 4 for everything in the world!” I answered.He kept 5 , seeming to be in deep thought, with a lighted cigarette in his hands. Finally he asked, “What can I do to change your 6 ?”Looking deep into his eyes I slowly answered, “Let’s say, I want a flower on a mountain cliff and picking the flower will cause your 7 . Will you do it for me?”He answered, “I will give you my answer tomorrow.”I 8 the next morning, finding a piece of paper on the dining table, which read: “My dear, I would not pick that flower for you, but please allow me to 9 .”My feeling of disappointment only 10 , but I continued reading:“You always leave the 11 keys behind, so I have to save my legs to 12 home to open the door for you. You always like to stay indoors and I 13 that you will feel too lonely, so I have to save my mouth to tell you jokes and stories. You always stare 14 the computer and that will do nothing 15 for your eyes, so I have to save my eyes so that when we grow 16 , I can help to clip your nails. Thus, my dear, 17 I am sure that there is someone who loves you more than I do, I could not pick that flower yet, and die.”My tears fell on the 18 and I continued reading:“Now that you have finished reading my answer, if you are 19 , please open the front door for I am standing outside 20 your favorite bread and fresh milk.”Love, not words, wins arguments.1. A. supporter B. opposite C. follower D. advocate2. A. marriage B. connection C. career D. future3. A. annoyed B. shocked C. frightened D. amused4. A. results B. signs C. causes D. reasons5. A. easy B. normal C. silent D. calm6. A. habit B. feeling C. attitude D. mind7. A. death B. injury C. happiness D. trouble8. A. hurried up B. looked up C. woke up D. went up9. A. love B. explain C. stay D. change10. A. arose B. disappeared C. reduced D. increased11. A. car B. office C. bicycle D. house12. A. leave B. walk C. rush D. get13. A. worry B. think C. believe D. remind14. A. at B. to C. on D. in15. A. bad B. good C. terrible D. important16. A. weak B. ill C. old D. close17. A. unless B. if C. since D. because18. A. photos B. flowers C. floor D. letter19. A. hungry B. thirsty C. satisfied D. regretted20. A. buying B. bringing C. heating D. catching【参考答案】BABDC DACBD DCAAB CADCB阅读下面短文，从短文后各题所给的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项。
牛津初中英语8A八上期中任务型阅读首字母填空专练4含答案
任务型阅读首字母填空4六、根据首字母提示补全短文(每空1分，共10分)In a town in France, there was a farmer who lived a__1__. Every day he sold(卖) a pound of butter to his neighbour, who was a baker. One day the baker d__2__ to weigh the butter to see if he was getting a pound. After he weighed it, he found that he wasn't. The baker then took the farmer to the judge(法官).The judge wanted to know the farmer's ways to weigh the butter. The farmer replied, “I'm so p__3__ that I do not have enough money to buy anything to weigh it. However, I do have a kind of scale(天平)．” The judge asked, “Then h__4__ do you weigh the butter？” The farmer replied, “Before the baker started buying butter from me, I had bought bread from him. So now every time when I b__5__ home the bread from the baker, I put it on the scale and give him the butter of the same w__6__.”We always get back what we give to others. Whenever you take action, ask yourself this question, “Am I h__7__？”Honesty or dishonesty can b__8__ a habit. Some dishonest people can lie w__9__ a red face. Others lie so much that they do not even know what the truth is any more. But who is it bad for? In fact, those who lie will hurt t__10__ by their own dishonest behaviour(行为)．七、任务型阅读(每空1分，共10分)What's the secret of being a great friend? Here are some tips to help you be a nice friend.Laugh and cry together. Laughing with a friend is the best, but sometimes crying brings you closer together. Don't be afraid to be yourself with your friends. Share your true feelings—you may learn that your friends feel the same way. As a result, friends will understand each other better.Be a thoughtful gift giver. Giftgiving isn't just for birthdays or holidays—it can be a fun way of giving your friends surprises! But don't buy expensive presents—be creative! Making things shows you care, because you put time and thoughts into your gifts. Bake him his favourite cookies, write him a poem, or draw something special for him. Small thoughtful gifts, such as picking a flower for a friend who is sick, just might cheer him up.Stand up for him. It's hard to watch someone laugh at a friend. But don't just stand there. Do something about it! You can find an active way to solve the problem to make others look at your friend differently. You need to show your courage and support him—he needs you. It may not be easy, but it's what a good friend should do!六、根据首字母提示补全短文(每空1分，共10分)My problems 1. s________ after I went to a boarding(寄宿) school. I was only 14, and at first I missed my family a lot. I often called them and cried on the 2. p________. But after two weeks, I found I enjoyed being with my 3. c__________ at school. I had many friends who were boys. I 4. t________ of them as my best friends—but only friends. I never guessed my friendships with boys would become a problem. Then, three months later, my friends 5. t________ me that some teachers and girls said I was hanging out(闲逛) with boys all day long in order to get attention from them. Seven months after that, the head teacher Mr Wang asked the class to 6. c________ some students to join the Students' Union. I thought I could win for I was doing well in school. I came 7. f________ in maths and English exams. A week later, the list came out and it didn't 8. i________ me. I was sad.Mr Wang came to me and said, “Don't be sad. I know you're 9. e__________！Maybe you are a little distant(疏远的) from the girls in our class. They don't know much about you, so some of them didn't choose you. It doesn't matter. Do your 10. b________ to get along well with everyone and I think you'll make it next time.”七、任务型阅读(每空2分，共10分)A group of high school students from the United States has planted hope by cleaning up an empty lot(一块地) in their neighbourhood.The students are from Buchtel High School in Akron, Ohio. The empty lot, which is owned by a local banker, was filled with grass and poison ivy(毒常春藤). As a project for the school's biohealth(生物健康) class, eight students decided to turn the empty lot into a space that would improve the mental(心理的) and emotional(情感的) health of people who lived near it.They first came up with a design, did research and created 3D models of their plans. Ideas were then presented and the school leaders picked the winning plans.Finally, the students brought those plans to life.Now when you walk into the lot, you can see a wood walkway leading to a purple iron bench. A few beautiful plants are already in the ground. There is also a hopscotch(跳房子游戏) board that is painted bright blue. A wall painting with the words “Love” and “Peace” has taken shape on a back fence, decorated with the students' handprints. The rest of the fence is painted grey to cover plain wood.The students said they painted the bench purple because they found that purple has a comforting feeling for people. They thought kids could go there and sit together, communicate with each other in peace and stay out of trouble.As for the hopscotch board, it was set up for a group of eight to ten schoolage kids who lived in the neighbourhood but had nowhere to play.“It gives the neighbourhood a little hope and a little beauty，” said Lyle Jenkins, a member of the Neighbourhood Network. A lot of people love the neighbourhood and have great hopes for things getting better.六、根据首字母提示补全短文(每空1分，共10分)Stonehenge, a rock circle, is not only one of Britain's most f__1__ historical places but alo one of its greatest mysteries. Every year it receives more than 750，000 v__2__. People like to go to this place especially in June as they want to see the sun r__3__ on the longest day of the year.For many years, historians b__4__ Stonehenge was a temple where ancient leaders tried to communicate with the gods. However, historian Paul Stoker thinks this can't be t__5__ because Stonehenge was built so many centuries ago. “The leaders arrived in England much later，” he points out.A__6__ popular idea is that Stonehenge might be a kind of calendar. The large stones were put together in a certain way. On midsummer's morning, the sun s__7__ directly into the centre of the stones. Other people believe the stones have a medical purpose. They think the stones can prevent illness and keep people h__8__. “As you walk there, you can feel the energy from your feet move up your body，” said one visitor. No one is sure w__9__ Stonehenge was used for, but most agree that the position of the stones must be for a special purpose. Some think it might be a burial place o__10__ a place to honor ancestors. Others think it was built to celebrate a victory over an enemy.六、根据首字母提示补全短文(每空1分，共10分)While being on my year abroad, I have tried to c__1__ small things such as train tickets, postcards, and I have been taking lots of photographs. Living in F__2__，I take the underground every day. I have my own personalized map on which I have circled all of my favourite restaurants, cafes, parks and other places. I have even coloured it to say if these places have f__3__ WiFi or lunch deals. What I plan to do with all these things is m__4__ a scrapbook.For those of you who have never heard of the word “scrapbook”，it's an empty book which people usually take away with them on holiday, and fill it with “scraps” of paper, tickets, maps,stamps, photographs, etc. It is l__5__ a memory book. You will always have the memories of your favourite places and w__6__ you liked them so much, all in your scrapbook! It is really valuable to own it if you ever want to r__7__ to that place. My scrapbook started in September and after eight months it was a__8__ full!Why not create a scrapbook of your time while travelling? Isn't it nice to be able to open a book of your life and time a__9__ a traveller? You can't imagine how happy you can be by just looking at an old ticket with a special d__10__ on, or a napkin from your favourite restaurant. It's the little things that can make you smile.六、根据首字母提示补全短文(每空1分，共10分)The American singer Ariana Grande knew what she wanted when she was very young. At the a__1__ of 14, she said to a manager in Los Angeles, “I want to make an album(专辑)．” And her dream has come true.As a little girl, Grande showed great i__2__ in music and acting. She first worked as a TV star and s__3__ 14 hours acting every day. She sang and made videos at home as well. Then she put them online. F__4__，a music manager saw her videos online. He thought the girl could be a superstar. That's how her career(生涯) a__5__ a singer began.Now the American singer is successful. With some albums in hand, she has made h__6__ a superstar. The world likes her pop and R&B. She keeps w__7__ one award(奖) after another. She gives concerts(音乐会) in many c__8__，including China. Her concerts in Beijing and Guangzhou were great!People all say Grande has a special v__9__. More importantly, she knows how to use it. Her songs sound strong. At the s__10__ time, they are sensitive(细腻的). They touch and win millions of people's hearts.七、任务型阅读(共15分)NAO is a 58cmtall robot. He is small, cute and round. You can't help but love him! NAO is created to be a friendly partner around the house. He moves, recognizes(识别) you, hears you and can even talk to you.Since his birth in 2006, he has been better and better at pleasing, understanding and loving you. Maybe one day he will become your friend. His cute look and wonderful communication skills make him really lovely and popular.He can be a good helper. Ask him to do something and he does. For example, ask NAO to wake you up in the morning, to watch your home during the day or to teach you new things whenever you want. You no longer need a keyboard, a computer or a mouse to communicate with technology. All you have to do is talk to him.He can be a sweet family member. He can learn to read your moods, so that he always knows the right thing to say. He can recognize your family members and call them by their first names. You can teach him how to choose the music, food and film you like best.。
2024年9月时事语法填空(4)-2025届高三英语一轮复习
语法填空1It was the image that made the Titanic's wreck（沉船）1._____(instant) recognisable - the ship's bow looming out of the darkness of the Atlantic depths.But a new expedition has revealed the effects of slow decay (腐烂), with a large section of railing (栏杆) now on the sea floor.The loss of the railing, immortalised（使……不朽）by Jack and Rose in the famous movie scene, 2.______ (discover) during a series of dives by underwater robots this summer. The images they captured show how the wreck is changing after more than 100 years 3._____ the waves. The ship 4._____(sink) in April 1912 after hitting an iceberg, 5._____(result) in the loss of 1,500 lives.“The bow (船头) of Titanic is just iconic. 6.____ it doesn't look like that anymore.” said Tomasina Ray, director of collections at RMS Titanic Inc, 7.____ company that carried out the expedition.“It's just another 8.______(remind) of the deterioration (恶化) that's happening every day.”The team believes the section of railing, 9._____ is about 4.5m (14.7ft) long, fell off at some point in the last two years. This summer’s RMS Titanic Inc expedition took place over July and August.The company is now carefully reviewing the footage 10._____(document) the finds and will eventually create a highly detailed digital 3D scan of the entire wreck site.More images from the dives will be revealed over the coming months.参考答案1.instantly2.was discovered3.beneath/under4.sank5. resulting6.But7.the8.reminder9.which10.to document语法填空2Adele has told her fans she will not see them "for 1._____ incredibly long time", after finishing the final show of her European tour in Munich,Germany.The 36-year-old told fans she "needs a rest" 2._____ wanted to "live my new life I've been building".Adele confirmed her engagement to US sports agent Rich Paul on the same stage earlier this month, 3.______(tell) a fan holding a sign saying, "Will you marry me?" that she couldn't as she was "already getting married". She has been in a relationship 4.______Paul, who is the founder of Klutch Sports Group and counts basketball legend LeBron James among his clients, since 2021.Adele split from charity boss Simon Konecki, with 5._____ she shares son Angelo, in April 2019. She concluded her 6.______ (announce), telling the crowd she would miss them "terribly" and hoped she would see them in Las Vegas. Adele 7._____(rise) to fame as a 19-year-old in 2008 with her first album "19", before releasing her second album, 21, in 2011, and25, in 2015.Her second album is the 8.______ (four) best-selling album of all time in the UK, behind Queen, ABBA, and The Beatles.She released her 9._____ (late) album, 30, in November 2021 marking a comeback after five years and performing at the British Summer Time festival (BST) in Hyde Park the following summer - her last performance in the UK. Adele is set 10._____(conclude) her shows in Las Vegas in November this year.参考答案1.An2.and3.tellingtest10.to conclude 语法填空3The new game Black Myth: Wukong has come out on August 20th and people all over the world are excited about it.As China’s first true AAA title — agame 1 (characterize) by high development costs, long production cycles, and significant resource investment, Black Mythrepresents 2 major breakthrough of the Chinese gaming industry.The game 3 (set) against the backdrop of the classic Chinese novel Journey to the West, one of the Four Great Classical Novels of Chinese literature. After Tang Monk and his disciples(门徒) 4 (successful) obtained Buddhist scriptures, Monkey King (Sun Wukong) was named Fighting Buddha and gradually vanished without a trace. The player, known as the Destined One, starts an epic journey 5 (uncover) the truth behind the legendary tale. 6 the game’s huge success in China is partly because people there know the story of Journey to the West, the fact that it has also caught the interest of international audiences — many of 7 lack this cultural background —suggests that Black Myth is on the right path.Many overseas players have been inspired by the game to start reading the 8 (origin) book Journey to the West. Fans of Black Myth have even started posting videosonline, 9 (share) their understanding of Chinese mythology (神话) and the Journey to the West story.As the game’s preview sessions began, many international 10 (medium) and invited influencers have shared detailed reviews. They have praised the game’s technical and artistic quality, as well as its cultural importance.参考答案1. characterized2. a3. is set4. successfully5. to uncover6.Although/Though/While 7. whom 8. original 9. sharing 10. media。
高考英语完形填空基础练习4
毛额市鹌鹑阳光实验学校2014高考英语完形填空基础练习（60）及答案完形填空训练Sare Niccoli, the 17-year-old daughter of a rich textile owner wasfreed by her kidnappers (绑匪) after 118 days. She said she 1 mostof the time in a tent in the woods 2 one foot tied to a tree. 3was freed late on Friday 4 her family paid a 5 of $1.8 million,the largest ransom (赎金) 6 paid in Italy.“I was 7 well,” the girl told the 8 during the interview,“Biscuits, cakes, often hot food and 9 stewed beef.” She said hernearly four months in 10 was spent in a tent pitched (set up) in a11 area.“I never 12 their faces and when they 13 , they changed theirvoices in nasal tones (speaking through nose passage) on 14 ,” shesaid. “They kept 15 that the only thing they wanted was the moneyand that they didn ’t want to have 16 to do with me or my family.”The high 17 student, who was seized by three face-covered and18 men on July 2, 1983 from her family ’s 19 villa (别墅) inTuscany, said she still had no idea 20 on earth she had been held.1. A. got B. had C. took D. spent2. A. and B. including C. with D. although3. A. She B. Her friend C. Her father D. Hermother4. A. so B. after C. unless D. if5. A. lot B. amount C. total D. figure6. A. money B. ever C. possibly D. being7. A. treated B. understood C. considered D.tested8. A. family B. reporters C. police D.friends9. A. a bit B. at times C. somewhat D. containing10. A. prison B. trap C. trouble D. dark11. A. dangerous B. wooded C. kidnapping D. farm12. A. watched B. remembered C. saw D. looked at13. A. cried B. sang C. spoke D. laughed14. A. purpose B. average C. holiday D. time15. A. repeating B. doing C. talking D. askingfor16. A. nothing B. something C. everything D. anything17. A. society B. family C. class D. school18. A. armed B. handed C. kidnapped D.terrified19. A. country B. city C. textile D. downtown20. A. which B. what C. why D. where完形填空训练（十五）1~5 DCABC 6~10 BABBC 11~15 BCCAA 16~20 DDAAD完形填空（记叙文）A few weeks after my first wife died, I was cooking dinner for my son and myself. For a vegetable, I decided on frozen 1 . As I was cutting open the bag, it slipped from my hands and crashed to the floor. The peas, like marbles, 2 everywhere. I tried to use a 3 , but with each swipe the peas rolled across the kitchen, 4 off the wall on the other side and rolled in another 5 . My mental state at the time was fragile. Losing my wife is an 6 pain. I got on my hands and knees and pulled them into a pile. I was half laughing and half crying as I 7 them. For the next week, every time I was in the 8 , I would find a pea that had9 my first clean up. In a corner, behind a table leg, or hidden undera heater, they kept 10 .I came to realize my 11 had been like that bag of frozen peas. My wife was gone. I was in a new city with a busy job and a son having trouble 12 to his new surroundings and the loss of his mother. I was a bag of spilled, frozen peas. My life had 13 and scattered. Then life gets you down. When you think you can never get through the 14 times, remember, it is just a bag of 15 , frozen peas. The peas can be collected and life will 16 . You will find all the peas. First the 17 peas, then the harder ones. When you 18 all the peas together, life will be whole again, but how fast you collect your peas 19 on you. Will you 20 scattering them around with a broom, or will you pick them up one-by-one and put your life back together?1. A. fish B. beef C. peas D. steak2. A. rolled B. escaped C. piled D. bounced3. A. broom B. vacuum C. mop D. shovel4. A. turned B. jumped C. ran D. bounced5. A. side B. way C. direction D. corner6. A. unusual B. extraordinary C. unbearable D. unbelievable7. A. swiped B. collected C. found D. picked8. A. office B. bedroom C. garden D. kitchen9. A. escaped B. fled C. missed D. skipped10. A. coming up B. coming out C. turning up D. turning out11. A. work B. family C. friends D. life12. A. fitting B. adjusting C. adopting D. applying13. A. come apart B. come down C. come up D. come back14. A. critical B. tough C. proud D. pleasant15. A. swiped B. lost C. scattered D. abandoned16. A. live on B. move on C. bring on D. come on17. A. easy B. missing C. nice D. delicious18. A. pile B. pushC. swipe D. pull19. A. attribute B. concentrate C. depend D. fix20. A. stop B. keep C. continue D. remain参考答案76.CAADC CBDAC DBABC BADCB ：.完形填空（记叙文）Recently, I heard a touching story which illustrates the power that words can change a life—a power that 1 right in the hands of those reading this article. Mary had grown up knowing that she was different from the other kids, and she 2 it. She was born with a cleft palate(腭裂) and had to bear the jokes and stares of 3 children who teased her non-stop about her misshaped lip and confusing 4 . With all the teasing, Mary grew up hating the fact that she was“ 5 . ” She was 6 that no one, outside her family, could ever love her. . . until she 7 Mrs. Leonard’s class.Mrs. Leonard had a warm smile, a round face, and shiny brown hair. 8 everyone else in her class liked her, Mary 9 to love Mrs. Leonard. In the 1950’s, it w as 10 for teachers to give their children an annual hearing test. However, in Mary’s case, 11 her cleft palate, she was barely able to hear out of one ear. 12 not to let the other children have another “difference” to13 , she would cheat on the test each year. The “whisper test” was given by having a child walk to the classroom door, turn sideways, 14 one ear with a finger, and then 15 something which the teacher 16 . Mary turned her bad ear towards her teacher and 17 to cover her good ear. She knew that teachers would often say things like, “The sky is blue, ” or “What color are your shoes? ” But not on that day, 18 , God put seven words in Mrs. Leonard’s mouth that19 Mary’s life forever. When the “Whisper test”came, Mary heard the words: “I20 you were my little girl. ”1. A. stays B. hides C. remains D. lies2. A. liked B. hated C. accepted D. stood3. A. cruel B. kind C. naughty D. crazy4. A. idea B. speech C. story D. expression5. A. weak B. ill C. disabled D. different6. A. persuaded B. told C. convinced D. taught7. A. came B. entered C. admitted D. attended8. A. Although B. While C. As D. No matter9. A. came B. went C. set D. left10. A. ordinary B. general C. common D. regular11. A. in addition to B. as a result of C. in time of D. in spite of12. A. Supposed B. Determined C. Expected D. Convinced13. A. pick out B. work out C. give out D. point out14. A. block B. stop C. deafen D. close15. A. announce B. repeat C. recite D. declare16. A. gave B. shouted C. whispered D. said17. A. pretended B. started C. attempted D. refused18. A. strangely B. surely C. exactly D. reasonably19. A. changed B. improved C. extended D. affected20. A. hope B. think C. expect D. wish参考答案77.DBABD CBBAC ABDDB CABAD ：完形填空练习（七十）“Down-to-earth” means someone or something that is honest, realistic and easy to deal with.It is a pleasure to 1 someone who is down-to-earth. A person who is down-to-earth is easy to talk to and 2 other people as equal. A down-to-earth person is just the 3 of someone who acts important or proud.Down-to-earth persons may be important members of 4 , of course. But they do not let their importance “ 5 to their heads.” They do not consider themselves to be better persons than 6 of less importance. Someone who is filled with his own importance and pride, 7 without cause, is said to have “his nose in the air”. There is 8 waya person with his nose in the air can be down-to-earth.Americans 9 another expression that means almost the same as “down-to-earth”. The expression is “both-feet-on-the-ground”. Someone 10 both-feet-on-the-ground is a person with a good 11 of reality. He has what is called “common sense”. He may have dreams, 12 he does not allow them to block his knowledge of 14 is real.The opposite kind of 14 is one who has his “head-in-the-clouds”.A man with his head-in-the-clouds is a 15 whose mind is not in the real world.16 such a person can be brought back to earth. Sharp words from teacher can usually 17 a day-dreaming student down-to-earth.Usually, the person who is down-to-earth is very 18 to have both feet on the ground. 19 we have both our feet on-the-ground, when we are down-to-earth, we act honestly and openly 20 others. Our lives are like the ground below us, solid and strong.1. A. pick B. choose C. find D. receive2. A. accepts B. recognizes C. thinks D. acts3. A. same B. kind C. example D. opposite4. A. companies B. society C. the world D. the government5. A. come B. appear C. enter D. go6. A. some B. others C. ones D. fellows7. A. often B. rarely C. yet D. still8. A. some B. a C. no D. every9. A. discover B. find C. conclude D. use10. A. at B. of C. with D. from11. A. idea B. understanding C. opinion D. feeling12. A. for B. or C. but D. and13. A. that B. what C. such D. which14. A. idea B. creature C. attitude D. person15. A. dreamer B. stranger C. flyer D. settler16. A. However B. Therefore C. Moreover D. sometimes17. A. teach B. bring C. lead D. take18. A. fit B. sure C. likely D. able19. A. When B. Since C. Though D. Unless20. A. toward B. with C. over D. onto 完形填空练习（七十）1~5 CADBD 6~10 BACDC 11~15 BCBDA 16~20 DBCAA******************************************************结束完形填空练习（五十五）Like many sisters, Abby and Eliza Davis couldn't be more different. Twelve-year-old Eliza is full of 1 , and always has something to say. Nine-year-old Abby is 2 . She’s happiest when she has a good book to read. Eliza 3 to be a lawyer or a clothes designer one day. She just can’t 4 to grow up and to away to college. Abby wants to bea doctor when she grows up. She works hard at math and science, her 5 subjects.Eliza is in the seventh grade. She gets up every day at 5:30, to 6 and blow-dry her hair. She’s ready to leave the house at 6:50, to 7 her friends by the store for breakfast. The children have a mile and a half to 8 to school, and the bell rings at 7:30.At 11:20, the children have their 9 . Some eat the hot dog, chicken pot pie, 10 other food that the school prepares for them, but Eliza would like to bring her own lunch in a lunchbox. At 2:15, classes are 11 and it’s time for sports. Eliza usually has tennis practice 12 4:30. She’s tired by the time her mother comes to get her in the car, but she still has two or three hours of 13 to do before she goes to bed.Abby is in the fourth grade at Broken Ground School. Sh e’s lucky. Her school has big modern 14 , first-class teacher, and an excellent library. The playground is surrounded by beautiful 15 , where Indians once camped.Like many American school children, Abby starts the day by saluting the American 16 hanging in her classroom. Then work begins. Today, She's writing a composition about her summer holidays. Her pencil 17 busily across the paper.Abby will finish her story at home this evening, 18 Eliza does her homework. Will they work together 19 , or will they fight?“Well,” says Abby, “We have arguments, but we get along pretty well. About fifty-fifty,” I’d say. “That ’s not 20 for two such different sisters, is it?”1. A. power B. energy C. strength D. courage2. A. quieter B. younger C. noisier D. harder3. A. needs B. has C. agrees D. wants4. A. refuse B. accept C. wait D. wish5. A. best B. lovely C. fortunate D. favourite6. A. wash B. clean C. brush D. comb7. A. welcome B. meet C. see D. receive 8. A. drive B. move C. walk D. travel9. A. lunch B. cooking C. game D. supper 10. A. besides B. except C. without D. or 11. A. given B. prepared C. finished D. started 12. A. at B. by C. after D. until13. A. housework B. homework C. cleaning D. washing 14. A. offices B. blackboards C. classrooms D. windows 15. A. buildings B. pools C. forest D. woods16. A. flag B. map C. history D. people 17. A. jumps B. leans C. lies D. moves18. A. while B. and C. if D. then 19. A. happily B. constantly C. peacefully D. carefully20. A. bad B. fair C. equal D. usual 完形填空练习（五十五）1~5 BADCD 6~10 ABCAD 11~15 CDBCD 16~20 ADACA。
2016届高考语法专项复习单项填空(4)
2016届高考语法专项复习单项填空（4）1. --My pen ________ .--Neither will mine.A. won't be writtenB. is not writingC. doesn't writeD. won't write2. We hear it _______that Professor Lee has gone to America.A. sayB. to sayC. saidD. be said3. He received a telegram ________: "Mother sick."A. writtenB. saidC. readingD. writing4. It is high time that he _______to think what to do with the money.A. would beginB. beganC. beginD. will begin5. If he ________in Germany, what language would he probably speak now?A. were bornB. had been bornC. would have been bornD. was born6. If I had studied English last year, I ________able to speak it now.A. could beB. would have beenC. should beD. could have been7. ________he come late, give him the message.A. HadB. ShouldC. WouldD. Did8. --You should have been to your sister's home!--Yes, I _________.A. shouldB. ought to beC. mustD. should have9. William wishes now that he ________English instead of French when he was in high school.A. should have studiedB. should studyC. had studiedD. studied10. I would rather she ________tomorrow than today.A. comeB. cameC. should comeD. has come11. --He would go to see you.-- ________he did not come?A. What ifB. Where ifC. What comeD. Why whether12. ________their assistance, he would have to lead a very miserable life; he might even starve to death.A. WithB. If it were not forC. Without forD. If not"If it were not for ..." 译为"假如不是...的话" 为虚拟语气的一个表达法。
4的分解与组成填空题
4的分解与组成填空题
当我们谈论数字4的分解和组成时，我们可以从不同的角度来思考这个问题。
首先，我们可以将数字4分解为两个较小的数字的和或积。
例如，4可以分解为2+2，这是将4分解为两个相等的数字的和。
此外，4也可以分解为1+3，这是将4分解为两个不同的数字的和。
另外，4还可以分解为41，这是将4分解为两个数字的积。
另外，4还可以分解为22，这同样是将4分解为两个数字的积。
从组成的角度来看，我们可以将4看作是由不同数字组成的。
例如，我们可以说4是由数字1和数字3组成的，也可以说4是由数字2和数字2组成的。
此外，我们还可以将4看作是由多个数字相加得到的结果，比如1+1+1+1。
另外，我们还可以将4看作是由多个数字相乘得到的结果，比如14。
总的来说，数字4可以通过不同的方式进行分解和组成。
这种多样性让我们更好地理解数字之间的关系，同时也展现了数字4的灵活性和多样性。
希望这样的回答能够满足你的要求。
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questblblank anstblblank 1. 计算机网络是______计算机技术与通信技术相结合的产物。
==================================================2. 计算机网络最主要的功能是______资源共享==================================================3. 计算机网络的国际化标准体系结构是______OSI，它把网络分为______7层、最低二层是物理层、数据链路层。
==================================================4. 网络协议含有三个要素______语义语法和规则。
5. ===============================================______ATM交换技术为多媒体数据通信创造了条件。
==================================================6. 计算机网络中属于有线传输介质的有______双绞线、光纤、同轴电缆。
==================================================7. 按网络作用的地域范围对网络分类有局域网和______广域网==================================================8. 波特是______传输速率的单位。
==================================================9. 双绞线一般用作______局域网的通信介质。
==================================================10. Internet主要使用______TCP/IP网络协议。
==================================================11. 局域网的网络拓扑结构可以分成______总线网、环形网和星形网等。
==================================================12. 目前世界上最大的计算机广域网是______INTERNET 13. ==============================================______域名服务器实现Internet中入网主机名和IP地址的转换。
==================================================14. LAN的中文含义是______局域网==================================================15. Internet中我国的域名缩写为______cn==================================================16. IP地址由______4组10进制数组成，中间用.分隔。
==================================================17. 中国从______1994年起正式注册进入Internet，为国内外用户提供全功能服务。
==================================================18. 常用的无线传输介质为______微波、激光。
==================================================19. 插在计算机中的网络接口设备是______网卡==================================================20. WWW译作万维网/环球网/Web网/3W网，它使用______超文本信息组织和管理技术。
==================================================21. 假如您的计算机已连接______Internet，用户名为abcd，连接的服务器主机名为，则您的E–mail地址为______abdc@ ==================================================22. IP地址由一组______32位的二进制数字组成。
==================================================23. 1994年5月，我国已作为世界上第______71个国家级网加入Internet。
==================================================24. 广域网物理上由两部分组成：______资源子网和通信子网。
==================================================25. 按传输介质的类型，信道可以分为有线信道和______无线信道==================================================26. 按传输信号的形式，信道可以分为模拟信道和______数字信道==================================================27. 在计算机网络中，广泛使用交换技术，目前交换技术主要有电路交换、______分组交换和异步转移模式ATM。
==================================================28. 异步转移模式（ATM）数据包长度为______53字节。
==================================================29. 网络服务器根据其提供的服务一般可以分为文件服务器、______应用服务器和打印服务器。
==================================================30. 局域网按传输介质所使用的访问控制方式，可以分为以太网、标记环网、______FDDI网和交换式局域网等。
==================================================31. 网卡物理地址MAC的长度为______6字节。
==================================================32. 购买软件时，通常要购买软件的LICENCE，这里LICENCE指的是______使用许可证==================================================33. 网络版软件有时标称50 USERS，其含义是______同时不得超过50用户使用该软件。
==================================================34. PC机组成的局域网有两种常用的工作模式：______对等模式和客户/服务器模式。
==================================================35. 实现多个用户在网络上共享数据文件（文档），协同工作，完成特定的任务的网络应用软件称为______群件==================================================36. 实现两个同类型网络在数据链路层互连的设备是______网桥==================================================37. IP地址130.24.35.68属于______B类地址。
==================================================38. IP地址202.119.97.5属于______C类地址。
==================================================39. 一个C类地址用于主机数量不超过______254台的小网络。
==================================================40. 现行IP地址使用______4字节表示。
==================================================41. TCP/IP协议标准将计算机网络中的通信问题划分为______5个层次。
==================================================42. 路由器可实现局域网与局域网、局域网与广域网、______广域网与广域网的互连。
==================================================43. 在计算机网络中，ISP的中文意思是______因特网服务供应商==================================================44. Web文档有三种基本形式，它们是静态文档、动态文档和______主动文档45. ==============================================______授权管理的任务是对系统内的每条信息规定各用户对它的操作权限。
==================================================46. 对于有10个用户的网络来说，使用对称密钥加密系统，共需要______45个密钥。
47. =============================================______双重加密使消息同时具有身份可验证性和保密性。
==================================================48. 在密码学中，将未加密的消息称做______明文，将加密过的消息称做密文。