一、单项选择题(只有一个正确答案)
【1】Only when David did it a second time ____________.
A: he realized his mistake
B: was he realized his mistake
C: he was realizing his mistake
D: did he realize his mistake
答案: D
【2】They are looking forward to ______________ to the lecture by famous professor.
A: send
B: be sent
C: being sent
D: sending
答案: C
【3】You will soon ___________ the weather here, and then the changes in temperature will not trouble you much.
A: get used to
B: get over
C: get to
D: get on with
答案: A
【4】-------- Excuse me, is this Mr. Brown' house? -------- I'm sorry, but Mr. Brown _________ lives here.
A: not now
B: on come
C: not still
D: no longer
答案: D
【5】My wallet is nowhere to be found. I ____________ when I was on the bus.
A: must drop it
B: should have dropped it
C: must have dropped it
D: had dropped it
答案: C
【6】I have ___________ my holidays until September.
A: put up
B: put forward
C: put out
D: put off
答案: D
【7】I could have done it better if I __________ more time.
A: have had
B: had
C: had had
D: will have had
答案: C
【8】His watch is more expensive than____________.
A: she
B: her
C: hers
D: it
答案: C
【9】Make greater efforts, and you're sure to reach your goal ____________.
A: eventually
B: especially
C: effectively
D: endlessly
答案: A
【10】We will ___________ be in a hurry if we want to catch the 12:00 train.
A: must
B: need
C: necessary
D: have to
答案: D
【11】He had to __________ life in the city because his father needed help on the farm. A: give
B: give out
C: give up
D: give off
答案: C
【12】This answer sounded _____________.
A: correct
B: correctly
C: nicely
D: interested
答案: A
【13】Does John know any other foreign languages _________ French?
A: but
B: except
C: besides
D: under
答案: C
【14】I bought the coat _________ a low price.
A: at
B: in
C: on
D: with
答案: A
【15】His voice sounds slightly ____________.
B: strange
C: stranging
D: stranged
答案: B
【16】He __________ physics at all.
A: was hardly not interested in
B: hardly not interested in
C: hardly interested in
D: was hardly interested in
答案: D
【17】Only a few realized the damage they had caused. ______ did flee in fright.
A: The one whom
B: The ones who
C: Few who
D: Whom that
答案: B
【18】Let us go home now, ________?
A: shall we
B: shan't we
C: don't you
D: won't you
答案: A
【19】The car ______________ at the present speed until it reaches the foot of the mountain at about ten o'clock tonight.
A: would go
B: went
C: will be going
D: goes
答案: C
【20】__________ your coat at once. We must hurry.
A: Put on
B: Putting on
C: Wear
D: Wearing
答案: A
【21】The storm prevented me _____________.
A: to go out
B: to going out
C: from being out
D: from going out
答案: D
【22】It's not polite to ___________ a person while he is talking with others.
A: entertain
C: interrupt
D: interview
答案: C
【23】She has been here ______________.
A: after 1978
B: for 1978
C: in 1978
D: since 1978
答案: D
【24】For 200 years that practice has ____________ unchanged.
A: remained
B: left
C: preserved
D: kept
答案: A
【25】The cinema is offering a special rate to _________.
A: ours students
B: we students
C: us students
D: ours' students
答案: C
【26】Have you seen my key to the kitchen door by any __________?
A: change
B: check
C: chance
D: charge
答案: C
【27】I ___________bacon and eggs every morning.
A: am used to eat
B: used to eating
C: am used to eating
D: use to eat
答案: C
【28】I haven't met him for ages, but his mother ___________ him quite often.
A: had seen
B: sees
C: has seen
D: saw
答案: B
【29】Agricultural products are so important ______________ we cannot live without them. A: as
B: what
C: which
答案: D
【30】John succeeded ____________ what he wanted.
A: to get
B: to getting
C: in getting
D: and getting
答案: C
【31】Don is always ___________ of money. He spends more than he can earn.
A: lack
B: short
C: plenty
D: free
答案: B
【32】He went to see the film last night."______________."
A: So he did, and so did I
B: So did he, and so I did
C: So did he, and so did I
D: So he did, and so I did
答案: A
【33】He visited the factory ____________ Monday morning.
A: in
B: at
C: on
D: during
答案: C
【34】We got _________ necessary from Terry.
A: all the information
B: all informations
C: all the informations
D: all of the informations
答案: A
【35】His example ____________ that everyone can become a useful person in society as long as he is willing to work hard.
A: expresses
B: thinks
C: indicates
D: supplies
答案: C
【36】Tom never told us where you were going, __________?
A: did he
B: didn't he
C: were you
D: weren't you
【37】Since your roommate is visiting her family this weekend, _______ you like to have dinner with us tonight?
A: will
B: won't
C: do
D: wouldn't
答案: D
【38】Is there any ______________ medicine to cure that patient of his illness?
A: efficient
B: effective
C: attractive
D: enjoyable
答案: B
【39】_________ were the first on the waiting-list.
A: He and I
B: He and me
C: Him and I
D: Him and me
答案: A
【40】They called at every door ____________ people to buy their products.
A: having urged
B: urged
C: will know
D: urging
答案: D
二、阅读理解
【41】Why was the Bastille important to the citizens of Paris? The building of the Bastille had been started in 1370 under Chares V. By the seventeenth century it had ceased to be important for defense. Cardinal Richelieu turned it into a prison. It was not an ordinary prison to punish common crimes. Its huge doors closed only on enemies of the King. The Bastille's workings were secret. Prisoners were taken to it in closed carriages. Soldiers on guard duty had to stand with their faces to the wall. No talking was allowed. Worst of all, a prisoner never knew if he would be there a day, a week, a year, or forever. Only the King's letter could set him free.
Over the years the number of arrests by King's letter had become fewer. By the time of its fall, most of the prisoners were writers who had written against the corrupt deeds of the government. Voltaire the famous French writer, spent a year there in 1717-1718, and another l2 days in 1726. For those who believed in free speech and free thinking, the Bastille stood for everything evil. The day it was captured, the "Conquerors of the Bastille" found only seven prisoners inside. None the less, the Bastille was hated by the people. It was a symbol of the King's complete power.
The Bastille had been a prison__________________.
A: before the seventeenth century
B: since the time of Cardinal Richelieu
C: since 1370
D: since the time of Charles V
答案: B
According to the passage, which of the following is not true?
A: Voltaire was twice put in the Bastille.
B: In the Bastille everything done was done in secret
C: The Bastille was only for those whose were opposed to the King
D: Anyone, who did something wrong could find himself suddenly in the Bastille.
答案: D
At the time of its fall, in the Bastille there were ________________.
A: a large number of prisoners
B: some dozens of people who believed in free speech and free thinking
C: a lot of writers who had been against the government
D: only seven prisoners.
答案: D
According to the passage, which of the following statement is true?
A: Over the years the number of Prisoners in the Bastille was getting more and more.
B: All prisoners in the Bastille suffered life imprisonment
C: The King could put people in, or let them go out, as he wanted.
D: At the time it was captured, there were so few prisoners in it that it meant little to the people.
答案: C
The main purpose of this passage is to____________.
A: try to prove a point
B: show the inner working of the Bastille
C: tell a story
D: tell about interesting characters
答案: A
【42】Science and new technology have made such rapid progress in agriculture that modern machines can do almost all farm work, and therefore have made it possible for farmers to produce more food on the same amount of land. When people live in plenty,vegetables and fruits are in greater need.
Can orchard workers harvest fruits with machines as farmers to crops? Yes, they can. Scientists have already invented many different fruit-harvesting machines. Now, let's take cherry-picking machine for example. The cherry-picking machine first shakes a cherry tree, then catches cherries in heavy sheets and pushes the fruit along belts. The cherries are then dropped into huge containers of water, in which they are washed clean, and look fresh and pretty when they are placed into plastic boxes which come along the belt one after another. All this work is finished within three minutes. In this way two orchard workers are able to fulfill the harvesting work of a cherry orchard within two days which was done by over one hundred workers for two weeks. Another new machine that picks tomatoes has just been invented. First it cuts the vines below
the soil. Then both the vines and the fruit are pulled into the machine which separates the tomatoes from the vines and finally returns the vines to the field.
It is believed that it will soon be possible for powerful wind machines to blow oranges off trees. New machines that are now being tested will pick apples, peaches, pears and strawberries. It is also believed that with the development of science and new technology, farm working conditions will be greatly improved, that more and more work will be done by machines instead of men and that people 's living standard will be greatly improved in the future.
The best title for this passage is ______________________.
A: Development of Science and New Technology Has Improved Agriculture
B: Science, New Technology and Agriculture
C: Science and New Technology Can Enrich a Country
D: Orchard Workers Are Interested in the Development of Science and New Technology
答案: A
Which of the following can take the place of the sentence "when people live in plenty…"? _________________.
A: When people have more money than needed…
B: When people have quite a large amount of wealth…
C: When people need a large num ber of daily needs…
D: When people no longer worry about not having enough for their daily needs of food or clothing…
答案: D
Before the cherry-picking machine was invented, a present orchard worker's one day's work is equal to amount of work done by _______________________.
A: two hundred farmers two weeks
B: one hundred farmers two weeks
C: thousands of farmers a day
D: three hundred and fifty farmers a day
答案: D
According to this passage, when cherries leave the picking machine, they _________________.
A: are soaked in a large container of water
B: are on the belts, fresh and Pretty
C: are on heavy sheet, unwashed and dirty
D: have been put into plastic boxes, fresh and clean
答案: A
According to the passage, which of the following is not true? ___________________.
A: Tomato-picking machines put the vines back into the field in the end.
B: Nowadays orchard workers can harvest cherries with a machine.
C: Farmers can get much more food from the same amount of land now than before.
D: Orange picking machines have been invented and are already in use.
答案: D
【43】The journey two divers made some time ago to the very deepest point on the earth makes us realize how much of the world still remains to be studied. The two men went down seven miles to the bottom of the Pacific Ocean inside a small steel ball to find out if there are any ocean currents or signs of life.
It was necessary to set out early, so that the ball would come to the surface daylight, and so be easily found by the mother ship which would be waiting for it. The drivers began preparations early in the morning and soon afterwards, when all was ready the steel ball disappeared under the surface of the water.
The divers felt as if they were going down steps as they passed through warm and cold layers of water. In time the temperature dropped to freezing point. They kept in touch with the mother ship by telephone telling how they felt. Then, at a depth of 3,000 feet, the telephone stopped working and they were quite cut off from the outside world. All went well until some four hours later at 30, 000 feet, the men were frightened by a loud cracking noise: even the smallest hole in the ball would have meant instant death. Luckily, though, it was only one of the outer windows that had broken. Soon afterwards, the ball touched the soft ocean floor raising a big cloud of "dust" made up of small Dead Sea creatures. Here powerful lights lit up the dark water and the men were surprised to see fish swimming just above them quite untroubled by the great water-pressure. But they did not dare to leave the lights on for long, as the heat from them made the water boil. Quite unexpectedly, the telephone began working again and the faint but clear voices of the divers were heard on the mother ship seven miles away. After a stay of thirty minutes the men began their journey up, arriving three hours later, cold and wet through, but none the worse for their experience.
The purpose of the divers' journey to the deepest point on the earth was to find________________.
A: if people can stand the severe cold in the great depths
B: if there are steps in the great depths
C: if there are water currents and life in the great depths
D: if the telephone works well in the great depths
答案: C
The divers set out early in the morning so that __________________.
A: they cou1d avoid the cold at night
B: they could return to the surface during the day
C: they could see at the bottom of the ocean
D: they could stay long at the bottom
答案: B
Which of the following statement is true?
A: The ocean water temperature decrease steadily with the depth.
B: The water layer of different temperatures made the divers feel as if they were going down steps
C: There are steps between the water layers of different temperatures
D: There are steps on the way to the bottom of the Pacific Ocean.
答案: A
As the divers went down to the ocean floor, the telephone______________.
A: stopped working at a depth of 3, 000 feet and began working again when they returned to the same depth
B: kept working all the time
C: stopped working at a depth of 3, 000 feet and began working again at 30,000 feet
D: stopped working at a depth of 3, 000 feet and began working again after they reached the soft ocean floor
答案: D
On the ocean floor, the divers found that ___________________.
A: fish were not swimming freely under the high water-pressure
B: fish were swimming as freely as they do near the surface
C: fish were not swimming freely in the dark water
D: there was no life but some small dead sea-creatures
答案: B
【44】Long, long ago there lived an old farmer in a small village. He lost his donkey and he wanted to go to town to buy another. Among the donkeys on sale he saw his own donkey. "This donkey is mine", he said to the man standing by the donkey. "Someone stole it from me three years ago."
"How is that?" the man said. "It has been mine for three years."
"Three years?" the farmer said, "Are you sure?" Then he quickly covered the eyes of the donkey with his hand and asked, "Which eye is it blind in?"
"The right eye," said the man.
The farmer took away his right hand and people saw the donkey's right eye was clear and shining. "I made a mistake," said the man "I meant to say the left eye."
"It is not blind in either eye," said the farmer. Then he said to the people around, "It's clear this man is a thief."
The people caught the thief and took him to the policeman. The old farmer got his own donkey back.
__________ lost his own donkey.
A: A farmer
B: A worker
C: A lawyer
D: A teacher
答案: A
Someone stole the donkey ___________.
A: three years later
B: three years ago
C: after three years
D: in three years
The donkey was ____________.
A: was not blind in the left eye
B: was blind in both eyes
C: not blind in the right eye
D: was not blind in either eye
答案: D
The people caught the thief and took him to the ____________.
A: office
B: policeman
C: village
D: police station
答案: B
The old farmer ___________ his own donkey back.
A: bought
B: looked for
C: borrowed
D: got
答案: D
三、完形填空
【45】Scientists are studying how to save from dying out the storks,____1____number have been decreasing rapidly because of environmental changes, poisoning and hunting. Their traditional feeding grounds in____2____and wetland have become populated. The storks are being poisoned for eating insects which____3____have been poisoned. Others are shot or trapped by hunters.
Scientists said it is impossible to determine how many storks remain and warned that their decrease is "very____4____".
The scientists propose to save the birds through finding out where they are at risk and by educating the public____5____the value of these creatures.
Most of the____6____about the bird life has been collected by nonprofessional bird watchers who note down what they see in their spare time.
The white stork,____7____the name suggests, is all-white except for the black rear half of the wing. The bird stands one-meter____8____
Each year hundreds fly to Africa after breeding in Europe. Scientists are____9____concerned that the numbers returning to stay in Europe have been decreasing. "We need to find out more about the needs of these birds and the ____10____they face so we may be able to help them," said the scientists.
1)
A: their
B: those
D: whose
答案: D
2)
A: villages
B: on
C: areas
D: fields
答案: D
3)
A: they
B: ones
C: themselves D: some
答案: C
4)
A: alarming B: unreasonable C: desirable D: awful
答案: D
5)
A: about
B: with
C: at
D: for
答案: A
6)
A: news
B: information C: intelligence D: impression 答案: B
7)
A: so
B: that
C: which
D: as
答案: D
8)
A: up
B: high
C: long
D: upward
9)
A: rarely
B: completely
C: extremely
D: readily
答案: C
10)
A: destruction
B: discouragement
C: dangers
D: damages
答案: C
【46】The United States is well-known for its network of major highways designed to help a driver get from one place to another in the shortest possible time._____1_____these wide modern roads are generally smooth and well maintained, with_____2_____sharp curves and many straight sections, a direct route is always the most_____3_____one.
Large highways often pass_____4_____scenic areas and interesting small towns. Furthermore, these highways generally connect large urban centers which means that they become crowded with_____5_____traffic during rushing hours, when the "fast, direct" way becomes a very slow route.
However, there is_____6_____always another route to take if you are not in a hurry. Not far from the _____7_____new "superhighways", there are often
older,_____8_____heavily traveled roads which go through the countryside. ome of these are good two-lane roads; others are uneven roads curving through the country. These secondary routes may go up steep slopes, along high_____9_____or down frightening hillsides to towns lying in deep valleys. Through these less direct routes, longer and slower, they generally go to places where the air is clean and the scenery is beautiful, and the driver may have a chance to get a fresh, clean_____10_____of the world.
1)
A: Since
B: Because
C: Therefore
D: Although
答案: D
2)
A: many
B: little
C: few
D: much
答案: C
3)
A: possible
C: enjoyable D: profitable 答案: C
4)
A: over
B: into
C: to
D: by
答案: D
5)
A: heavy
B: large
C: light
D: fast
答案: A
6)
A: yet
B: almost C: quite
D: still
答案: B
7)
A: relatively B: respectively C: regularly D: reasonably 答案: A
8)
A: and
B: less
C: more
D: or
答案: B
9)
A: roads
B: rocks
C: cliff
D: paths
答案: C
10)
A: variety B: virtue
C: view
答案: C
四、句子翻译
【47】If you had put on more clothes, you wouldn't have caught cold.
答案: 如果你多穿点衣服，就不会感冒了。
【48】She has gone to the railway station.
答案: 她已去火车站了。
【49】Her performance was a big success.
答案: 她的演出非常成功。
【50】Nothing travels faster than light.
答案: 没有任何东西比光传播得更快。
【51】How long have you lived in the village?
答案: 你在这个村子里住了多长时间？
【52】Why are you sitting here alone without doing anything?
答案: 你为什么没做事情一个人呆呆地坐在这儿？
【53】It takes half an hour to go to the railway station on foot.
答案: 去火车站步行需要半个小时。
【54】The worker must be sent to the hospital right away.
答案: 这位工人必须马上送往医院。
【55】I am afraid you won't be able to find the place.
答案: 我恐怕你不能找到这个地方。
【56】The man who is talking with our manager is a foreign businessman. 答案: 正在和我们经理谈话的是一位外国商人。
单元综合测评一 Unit 1Friendship (时间：100分钟满分：120分) 温馨提示：1.第Ⅰ卷答案写在答题卡上，第Ⅱ卷书写在试卷上；交卷前请核对班级、姓名、考号。2.本场考试时间为100分钟，注意把握好答题时间。3.认真审题，仔细作答，永远不要以粗心为借口原谅自己。 第Ⅰ卷选择题部分(共80分) 第一部分：英语知识运用(共两节，满分30分) 第一节：单项填空(共20 小题；每小题0.5分，满分10分) 从A、B、C和D四个选项中，选出可以填入空白处的最佳选项，并在答题纸上将该选项标号涂黑。 1．________ all the figures to see how much they ________. A．Add; add up to B．Add up; add up to C．Add up; add up D．Add; add to 解析：考查固定搭配。add up把……加起来；add up to加起来总共是。 答案：B 2．—What's the matter with Rod? —I think he's still ________ that we forgot his birthday. A．unfair B．stubborn C．reliable D．upset 解析：答句句意：我想他还在因为我们忘记了他的生日而不高兴。upset难过的，符合题意。 答案：D 3．—So you didn't say “hello” to him last night? —Well, I stopped and smiled when I saw him, but he ________ me and walked on. A．ignored B．refused C．denied D．missed 解析：考查动词辨析。ignore不理会；refuse拒绝；deny否定；miss错过，想念。 答案：A 4．Don't be nervous! Keep ________ even when you are in the face of danger. A．still B．calm C．silent D．quiet
初一下册 Module 1 People and Places 单元测试题 满分100分 4. school trip 6. put on your clothes 8. __ at this momen 9. ___________________ 看电视 10.打扮 ____________________________ ______________________________ II.根据汉语提示完成句子。(5分) 1. Daming is eati ng lunch and _____ 閒)i n the sun. 2. Ca n you ____ 发给 / 寄给)me a postcard too? 3. ________ 无论如何)，we are going to visit the museum. 4. They are _______ 等 待)buses at the bus stop. 5. He doesn ' t (有)a sister. 6. In Moscow it s eight o'clock and peoplearen ' ___________ 喝下午茶) 7. We are from ________ (不同的)countries(国家). 8. ________ (日本人)and Chinese look the same. 9. What color are those ______ (手套). 10. Do you ______ (认识)the girl in green? m .用所给单词的适当形式填空。(5分) 1. She is a friend of _____ (me). 2. ____ (be) these trousers old or new? 3. She know ___ (I ) name and I know _______ (she). 4. It ' s a dark blue jacket, it _______ '_ sMiotiael). 5. Let ' s _go _____ (shop) tomorrow. 6 .You are ________ (grow) so fast. 7. It _____ (look) very nice. 8. You can ____ (say) that aga in. 9. She grows fast. The dress will ___ (fit) her soon. 10. Help ____ (we) find him. IV 单项选择。(15分) ( )1. Where ______ he from? A. are B. is C. does D. has ( )2. _____ he ____ a small nose or big one? A. Do, has B. Does, has C. Does, have D. Do, have ()3. They have a TV set. It _ . ' s A. them B. their C. theirs D. they ( )4. You can _that again. 半球 A. speak B. talk C. tell D. say ( )5. Look __ _ the young man ___ long legs. I.词组互译。（5分） 1.过得愉快/开心 ______________ 2.填写明信片_________________ 3. Taking photos __________ 5.礼物 _______________ 7. have a drin ____________
操作系统复习题1 一、判断题 1.分时系统中，时间片设置得越小，则平均响应时间越短。（） 2.多个进程可以对应于同一个程序，且一个进程也可能会执行多个程序。（） 3.一个进程的状态发生变化总会引起其他一些进程的状态发生变化。（） 4.在引入线程的OS中，线程是资源分配和调度的基本单位。（） 5.信号量的初值不能为负数。（） 6.最佳适应算法比首次适应算法具有更好的内存利用率。（） 7.为提高对换空间的利用率，一般对其使用离散的分配方式。（） 8.设备独立性是指系统具有使用不同设备的能力。（） 9.隐式链接结构可以提高文件存储空间的利用率，但不适合文件的随即存取。（） 10.访问控制矩阵比访问控制表更节约空间。（） 二、选择题 1.在设计分时操作系统时，首先要考虑的是（A）；在设计实时操作系统时，首先要考虑的是（B）；在设计批处理系统时，首先要考虑的是（C）。 A,B,C ：（1）灵活性和适应性；（2）交互性和响应时间；（3）周转时间和系统吞吐量；（4）实时性和可靠性。 2.对一个正在执行的进程：如果因时间片完而被暂停执行，此时它应从执行状态转变为（D）状态；如果由于终端用户的请求而暂停下来，则它的状态应转变为（E）状态；如果由于得不到所申请的资源而暂停时下来，则它的状态应转变为（F）状态。D,E,F:（1）；静止阻塞（2）；活动阻塞（3）；静止就绪（4）；活动就绪（5）执行。 3.我们如果为每一个作业只建立一个进程，则为了照顾短作业用户，应采用（G）；为照顾紧急作业用户，应采用（H）；为能实现人机交互，应采用（I）；而能使短作业、长作业和交互作业用户满意时，应采用（J）。 G,H,I,J：（1）；FCFS调度算法（2）；短作业优先调度算法；（3）时间片轮转算法；（4）多级反馈队列调度算法；（5）基于优先权的剥夺调度算法。 4.由固定分区发展为分页存储管理方式的主要推动力是（K）；由分页系统发展为分段系统，进而发展为段页式系统的主要动力分别是(L)和(M)。 K,L,M:（1）提高内存利用率；（2）提高系统吞吐量；（3）满足用户需要；（4）更好地满足多道程序进行的需要；（5）既满足用户需求，又提高内存利用率。 5.在存储管理中，不会产生内部碎片的存储管理方式是（N）；支持虚拟存储器，但不能以自然的方式提供存储器的共享和存取保护机制的存储管理方式是（O）。 N：(1)分页式存储管理；(2)分段式存储管理；(3)固定分区式存储管理；(4)段页式存储管理。 O：（1）段页式存储管理；（2）请求分区页式存储管理；（3）请求分段式存储管理；（4）可变分区存储管理；（5）固定分区存储管理；（6）单一连续分区式存储管理。 6.磁盘调度主要是为了优化（P），下列算法中能避免磁盘粘着的现象的是（Q）。P：（1）寻道时间；（2）旋转延迟时间；（3）传输时间。 Q：（1）SSTF;（2）FCFS;（3）SCAN;（4）CSCAN;（5）FSCAN。 7.文件系统中，目录管理最基本的功能是（R），位示图的主要功能是（S），FAT 表的主要功能是（T）。 R，S，T：（1）实现按名存取；（2）提高文件存储空间利用率；（3）管理文件存储器的空闲空间；（4）指出分配给文件的盘块（首个盘块除外）的地址；（5）管理文件存储器的空闲空间，并指出分配给文件的盘块（首个盘块除外）的地址。 8.文件系统采用多级目录结构，可以（U）和（V）。 U,V：（1）缩短访问文件存储器时间；（2）节省主存空间；（3）解决不同用户文件的命名冲突；（4）方便用户读写文件；（5）提高检索目录的速度。9.计算机系统中信息资源的安全包括（W）、（X）和（Y）三个方面，其中程序被删除属于（W）方面的威胁，数据被非法截取属于（X）方面的威胁，消息被更改属于（Y）方面的威胁。 W,X,Y：（1）保密性；（2）完整性；（3）可用性；（4）方便性。 三、填空题 1.操作系统最基本的特征是（1）和（2），最主要的任务是（3）。 2.引入进程的主要目的是（4），进程存在的唯一标志是（5）。 3.（6）是指通过破坏死锁产生的必要条件来防止死锁的发生。引起死锁的四个必要条件中，（7）是不应该被破坏的，但对某些特殊的资源（如打印机），该条可通过（8）来破坏；而其他能被破坏的三个必要条件分别是（9）、（10）和（11）。 4.虚拟存储器管理的基础是（12）原理，在请求分页管理方式中，页表中的状态位用来只是对应页（13）修改位用来只是对应页（14），引用位则是供（15）使用；而在请求分段系统还增加了增补位，它用来指示（16）。 5.设备驱动程序是（17）与（18）之间的通信程序如果系统中有3台相同的单显和2台相同的彩显则必须为它们配置（19）种设备驱动程序 6.廉价磁盘冗余阵列可组成一个大容量磁盘系统，它利用（20）技术来提高磁盘系统的存取进度，而利用（21）技术来增加磁盘系统的可靠性 7.包过滤防火墙工作在（22）层，采用代理服务技术的防火墙则工作在（23）层 8.UNIX文件系统对文件存储空间采用（23）分配方式，它通过（24）来管理空闲的文件存储空间。 四、问答题 1.假设某多道程序设计系统中有供用户使用的内存100k，打印机1台。系统采用可变分区管理内存：对打印机采用静态分配，并假设输入输出操作的时间忽略不计：采用最短剩余时间优先的进程调度算法，进程剩余执行时间相同时采用先来先服务算法；进程调度时机在执行进程结束时或有新进程到达时。现有一进程序列如下： 假设系统优先分配内存的低地址区域，且不需移动已在主存中的进程，请：（1）给出进度调度算法选中进程的次序，并说明理由。 （2）全部进程执行结束所用的时间是多少？ 2.请用信号量解决以下的过独木桥问题：同一方向的行人可连续过桥，当某一方向的行人必须等待：另一方向的行人必须等待：当某一方向无人过桥是，另一方向的行人可以过桥。 3.提高内存利用率的途径有哪些？ 4.何谓脱机输入/输出技术？ 5. 将目录文件当作一般数据文件来处理有什么优缺点？ 操作系统复习题1答案 一、判断题 1、错 2、对 3、错 4、对 5、对 6、错 7、错 8、错 9、对10、错 二、选择题 1、A ：(2)；B：(4)；C：（3）。 2、D：（4）；E:(3)；F:(2)。 3、G：（2）；H:（5）；I:（3）；J：（4）。 4、K：（1）；L：（3）；M：（5）。 5、N：（2）；O：（2）。 6、P：（1）寻道时间；Q：（5）。 7、R：（1）；S：（3）；T：（5）。 8、U：（3）；V：（5）。 9、W：（3）；X：（1）；Y：（2）。
Unit 1 一. 单项填空 1．--- Mary’s got crazy and has been sent to the mental hospital. Did you tell her boss about that? --- Yes, but I _____ her husband first. A. should have told B. shouldn’t have told C. must have told D. needn’t have told 2．There was ______ time _____ Chinese used foreign oil. A. a; when B. a; while C. /; when D. /; while 3．It was because of bad weather __________ the football match had to be put off. A. so B. so that C. why D. that 4. --- Look! The telephone is broken. Someone damaged it ________ purpose. ---That may be right. But perhaps it was broken _________ accident. A. on; by B. by; by C. on; on D. by; on 5. What great trouble we had ___________ where his house was. A. in finding B. to find C. find D. found 6.Some students have trouble _____ grammar while others have difficulty______ new words. A. in; remember B. for; to remember C. on; remembering D. with; remembering 7. I cannot spend ________ money on the car which is ________ expensive for me. A. too much; much too B. far too; too much C. much too; too much D. too many; much too 8. catch the first bus, he got up very early this morning. A. In order to B. In order that C. So as to D. So that 9. There are altogether 6 people in the room, the baby________. A. include B. including C. included D. to include 10. The manager of the factory told us that very little ______ was made of the waste material in the past. A. cost B. value C. use D. matter 11. There is no ______ swimming-pool in this school and the students often go to swim ______. A. indoors; outdoors B. indoor; outdoor C. indoor; outdoors D. indoor; indoors 12. It is the first time that I _______ this kind of moon cake. A. enjoyed B. have enjoyed C. enjoy D. enjoying 13. When was it _____ your mother showed you around the West Lake ？ A. until B. if C. which D. that 14. In the reading room, we found her _______ at a desk, with her attention ______ on a book. A. sitting; fixing B. to sit; fixed C. seating; fixing D. seated; fixed 15. I’m glad you’ve come; I am _______ telephoning you. A. at the point of B. to the point of C. on the point of D. in the point of 二：完型 You Did More Than Carry My Books Mark was waking home from school one day when he noticed the boy ahead of him had dropped all of the books he was carrying, along with a baseball bat and several other things. Mark 16 down and helped the boy pick up these articles. _17 they were going the same way, he helped to carry some of them for him. As they walked Mark _18 the boy’s name was Bill, that he 19 computer games, baseball and history, that he was having a lot of _20 with his other subjects and that he had just broken 21 with his girlfriend. 1
外研版九年级上M o d u l e1单元测试试卷 一、单项选择（15分） ()1.Doyouknowwhat_____________tohimlastnight? A.happen B.didhappen C.washappened D.happened ()2.Didyoutell_____________aboutthenews? A.anyoneother B.anyoneelse C.elseanyone D.otheranyone ()3.Lucy,howabout_________-____thisafternoon? A.goswimming B.goingswim C.togoswimming D.goingswimming ()4.Therearemanytreeson____________ofthestreet. A.everyside B.bothside C.everysides D.bothsides ()5.SinceI___________tothevillage,I__________hereformanyyears. A.moved；lived B.moved；havelived C.havemoved；lived D.havemoved；havelived ()6.IfTom_____________thegame,we’llgivehimasurprise. A.win B.won C.wins D.winning ()7.ItoldmymotherIwasn’tworriedaboutmyexam.ButinfactI___________. A.did B.was C.have D.had ()8.–Doyouoftengetonline? –Yes.I______lotsoftimeonit.It’sagoodwaytokilltime. A.cost B.spend C.take https://www.doczj.com/doc/d59148433.html,e ()9.–Hehasheardofthisstorybefore.–_______________. A.SohaveI B.SodidI C.SoIhave D.SoIdid ()10.He’ll________Beijingtomorrowmorning. A.reachto B.arrivein C.geton D.arriveat ()11.–Couldyoulookafteryoursister,Tina? –Sorry,mum.I___________myhomeworknow. A.amdoing B.willdo C.wasdoing D.havedone ()12.TheGreatWallisabout6,700kilometres_____________. A.far B.wide C.high D.long ()13.–CanIseetheheadmasteratthemoment,please? –I’mafraidnot.He_________out.He_________in10minutes. A.goes;comes B.gone,came C.willgo;willcome D.hasgone;willcomeback ()14.Ihave_______________totellyou.
1.每个学生可以同时借阅多本图书，一本图书只能由一个学生借阅，图书和学生之间为（）的联系。 A. 一对多 B. 多对多 C. 多对一 D. 一对一 答案:C 2.关系R与关系S的并运算是（）。 A. 由关系R和关系S的所有元组合并组成的集合,再删除重复的元组 B. 由属于R而不属于S的所有元组组成的集合 C. 由既属于R又属于S的元组组成的集合 D. 有R和S中的元组连接组成的集合 答案: A 3.一个实体集对应于关系模型中的一个（）。 A. 元组 B. 字段 C. 属性 D. 关系 答案: D 4.专门的关系运算中,投影运算是（）。 A. 在基本表中选择满足条件的记录组成一个新的关系 B. 在基本表中选择需要的字段组成一个新的关系 C. 在基本表中选择满足条件的记录和属性组成一个新的关系 D. 上述说法都是正确的 答案: B 5.下面四种运算中，不是传统集合运算的是（）。 A. 并运算 B. 交运算 C. 差运算 D. 联接 答案: D 6.Access是一种关系数据库管理系统，所谓关系是指（）。 A. 各条记录中的数据彼此有一定的关系 B. 一个数据库文件中的各个表之间有一定的关系 C. 二维表 D. 数据库中各个字段之间彼此有一定的关系 答案: C 7.数据库DB,数据库系统DBS,数据库管理系统DBMS三者之间的关系是（）。 A. DBS包括DB和DBMS B. DBMS包括DBM和DBS C. DB包括DBS和DBMS D. DBS就是DB，也就是DBMS 答案: A 8. SQL的含义是（）。 A. 结构化查询语言 B. 数据定义语言 C. 数据库查询语言 D. 数据库操纵与控制语言 答案: A 9.不是Access数据库管理系统对象的是（）。 A. 报表 B. 查询 C. 数据访问页 D.组 答案: D
人教版高中英语必修1 第一单元测试卷1 （完卷时间：120分钟，满分100分） 第Ｉ卷（选择题） 第一部分：听力（共两节，共20分） 第一节（共5小题，每题1分，共5分） 1. What are the two speakers talking about? A. A shop. B. Body language. C. A picture. 2. What is the man doing? A.He is asking for information. B. He is having an interview. C. He is filling out a form. 3. What does the man mean? A. He has already visited the museum. B. he will go to the museum with the woman. C. H is too busy to go with the woman. 4. What did the man offer the woman? A. A raincoat. B. A ticket. C. A ride. 5. What do we learn from the conversation? A. The woman insists on going out. B. The woman doesn’t like going out. C. The man is too tired to go out. 第二节(共15小题，每题1分，共15分) 听第6段材料，回答第6-8题。 6. How much cheaper is the bus fare than the plane fare? A. $44. B. $14. C. $30. 7. What can we know about Aunt Edith from the conversation? A. She is middle-aged. B. Her figure is not good. C. Her hair is black. 8.When does the conversation take place? A. At 10:15. B. At 10:10. C. At 10:20. 听第7段材料，回答第9-11题。 9. What’s the relationship between the two speakers? A. Teacher and student. B. Schoolmates. C. Father and daughter. 10. What does the woman’s mother expect her to do? A.W ork in France. B. Live in France. C. Go to university in France. 11. What is the man’s father? A.A teacher. B. A professional football player. C. A professional basketball player. 听第8段材料，回答第12-14题。 12. W hat’s wrong with the man? A.He has twisted his foot. B. He has broken his foot. C. He can’t move his foot up and down . 13. What’s the possible relationship between the two speakers? A. Mother and son. B. Doctor and patient. C. Classmates.
Module1Unit1单元测试卷 一、单项选择（共25小题；每题1分，共25分） 1. The Belt and Road is a new force of promoting the development of the world economy, that will further push China's opening up. A. the one B. one C. ones D. the ones 【答案】B【解析】句意：一带一路是一种新的促进世界经济发展的力量，这将进一步推动中国的改革开放。此句考察代词的的应用，此处的词代指前面整句话的意思，应用one。故选B。 2. Many people fixed their eyes on me when I made that silly mistake, made me rather embarrassed. A. that B. who C. which D. when 【答案】C【解析】考查定语从句。根据句意可知，当我犯这种愚蠢的问题时，很多人眼睛盯着我，这让我相当难看。分析句子可知本句是非限制性定语从句，本句所填的词，指代前面的整个句意，即我犯的愚蠢的错误，（这件事）让我难看。在定语从句指代上文的句子的，要用关系词which，因此选C 3. Is this the factory _______ you visited the other day? A. in which B. which C. where D. the one 【答案】B【解析】考查定语从句的用法。这是你几天前参观过的工厂吗？这类题可以先把它转换成陈述句在做：this is the factory __you visited the other day .则可知"__you visited the other day " 是定语从句修饰factory 的，先行词是factory，可以用关系代词that, which或不填，结合句意，故选A。 4. Doctor Smith, who in Shanghai for more than ten years, is considering working in Huaian, but he hasn't decided yet. A. had worked B. has been working C. is working D. works 【答案】B【解析】考查谓语动词的时态。句意：在上海工作了十年多的史米斯医生正在考虑去淮安工作，但他还没有决定。分析句子可知，本句中的who指代前面的先行词doctor Smith，是单数。而根据后面的内容可知，本句中的史密斯先生在上海已工作了十多年，现在还在上海，故要用现在完成时 5. Bob, get this film _______. I want to know if this camera works. A. washed B. developed C. printed D. shown 【答案】B【解析】词义辨析。A. 洗；洗刷 B. 打印；印刷 C. 展示 D. 发展；使显影。句意：鲍勃，把这个胶卷快点洗出来。我想知道这部相机是否效果很好。故选B，是胶卷显出影像。 6. My new classmate told us about his trip to ____ Great Wall. He said it was ______ exciting experience for him. A. the; an B. 不填; the C. the; 不填 D. 不填; a 【答案】A【解析】考查冠词。句意为我的新同学告诉我关羽去长城的旅游。他说对他来说这是一次令人激动的经历。第一个空Great Wall为专有名词，所以前面要加定冠词the；第二个空，一次令人激动的经历是泛指，experience开头因为原因，所以用an。 7. If you go and study in Britain, you can get up an hour later ______ as schools in China begins before 8 a.m. A. as usual B. as usually C. than usual D. than usually 【答案】C【解析】考查固定短语。句意为如果你去英国学习你可以早上晚起一个小时，因为中国早上上课时在八点前。As usual 像往常一样than usual 比以往早 8. The past ten years have the great changes in all fields of our life, especially in the way we communicate. A. assumed B. witnessed C. required D. expressed 【答案】B【解析】考查动词辨析。句意：在过去的十年里，我们生活的各个领域都发生了巨大的变化，尤其是在交流方式上。assume承担，假定，认为，装出；witness 见证，目击；require需要，要求，命令；express表达，表情。本句是一种拟人的说法，其主语是过去的十年，即过去的十年见证（witness）了巨大的变化，分析句子可知，本句要用一般过去时。所以要用B。 9. English and French are taught here. You can choose you like. A. no matter which B. whichever C. which D. whatever
一、选择题 1、在现代操作系统中引入了（），从而使并发和共享成为可能。 A.单道程序 B. 磁盘 C. 对象 D.多道程序 2、( )操作系统允许在一台主机上同时连接多台终端，多个用户可以通过各自的终端同时交互地使用计算机。 A.网络 B.分布式 C.分时 D.实时 3、从用户的观点看，操作系统是（）。 A. 用户与计算机硬件之间的接口 B.控制和管理计算机资源的软件 C. 合理组织计算机工作流程的软件 D.计算机资源的的管理者 4、当CPU处于管态时，它可以执行的指令是（）。 A. 计算机系统中的全部指令 B. 仅限于非特权指令 C. 仅限于访管指令 D. 仅限于特权指令 5、用户在程序中试图读取某文件的第100个逻辑块时，使用操作系统提供的（）接口。 A. 系统调用 B.图形用户接口 C.原语 D.键盘命令 6、下列几种关于进程的叙述，（）最不符合操作系统对进程的理解 A.进程是在多程序并行环境中的完整的程序。 B.进程可以由程序、数据和进程控制块描述。 C.线程是一种特殊的进程。 D.进程是程序在一个数据集合上运行的过程，它是系统进行资源分配和调度的一个独立单位。 7、当一个进程处于（）状态时，称其为等待（或阻塞）状态。 A. 它正等待中央处理机 B. 它正等待合作进程的一个消息 C. 它正等待分给它一个时间片 D. 它正等待进入内存 8、一个进程释放一种资源将有可能导致一个或几个进程（）。 A.由就绪变运行 B.由运行变就绪 C.由阻塞变运行 D.由阻塞变就绪 9、下面关于线程的叙述中，正确的是（）。 A.不论是系统支持线程还是用户级线程，其切换都需要内核的支持。 B.线程是资源的分配单位，进程是调度和分配的单位。 C.不管系统中是否有线程，进程都是拥有资源的独立单位。 D.在引入线程的系统中，进程仍是资源分配和调度分派的基本单位。 10、设有3个作业，它们同时到达，运行时间分别为T1、T2和T3,且T1≤T2≤T3，若它们在单处理机系统中按单道运行，采用短作业优先调度算法，则平均周转时间为（）。 A. T1+T2+T3 B. (T1+T2+T3)/3 C. T1+T2/3+2*T3/3 3+2*T2/3+T1 11、在下面的I/O控制方式中，需要CPU干预最少的方式是（）。 A．程序I/O方式 B．中断驱动I/O控制方式 C．直接存储器访问DMA控制方式D．I/O通道控制方式 12、有m个进程共享同一临界资源，若使用信号量机制实现对一临界资源的互斥访问，则信号量的变
学案相关错题汇总（必修一） 1．________ it is to jump into cool water on a hot summer day! A．How a fun B．How fun C．What a fun D．What fun 答案： 解析： 2. I am moving to the countryside because the air there is much fresher than ________ in the city. A．ones B．one C．that D．those 答案： 解析： 3. I don’t think this park can be finished by the end of this month，________？ A．do I B．don’t I C．can it D．can’t it 答案： 解析： 4.．That girl ________Ann was an orphan.She lost her parents in a car accident. A．calling herself B．called C．who was called D．all the above 答案： 解析： 5. Mr. Smith is sure to be ________ as his father. A．as good a worker B．so a good worker C．as a good worker D．a as good worker 答案： 解析： 6. The thing that________ is not whether you fail or not，but whether you try or not. A．matters B．cares C．considers D．minds 答案： 解析： 7. The students are busy making preparations for the lecture because they will ________ the competition. A．attend B．join C．take part in D．attend to 答案： 解析： 8. By the time the police arrived，the thief ________. A．had disappeared B．was disappeared C．had been disappeared D．has disappeared 答案： 解析：
七年级下学期英语单元测试题一 Module 1 一、语音。根据所给音素写出单词。（5分） / ′p??stkɑ:d / / ′rest?r?nt / / dress / /′r??li / /?n′d??I / / s tr i:t / / dra I v / /′ɡri:t??/ /′b?le?/ /′?p?r?/ 二、单项选择。（15分） 1.It’s seven o’clock. I _______ in bed. A. lie B. lies C. am lying D. are lying 2. He’s _______ some presents. A. shop B. shopping C. shops for D. shopping for 3. _______ your presents drinking tea? A. Do B. Can C. Are C. Be 4. What is the old man _______? A. do B. does C. doing D. to do 5. Listen! Someone _______ in the next room. A. sing B. singing C. is singing D. are singing 6. –Are they writing postcards? –No, _______. A. they are B. they aren’t C. they do D. they don’t 7. The Smiths _______ sitting at the table. A. is B. am C. are D. be 8. –Is Lily doing her homework? –No, she _______. She is _______ a letter. A. doesn’t. write B. is n’t, writing C. isn’t, write D. doesn’t, writing 9. Listen! Miss Li _______ Bob. A. talk about B. is talking to C. talks to D. is talking 10. I don’t quite enjoy _______ a train. A. take B. takes C. to take D. taking 11. The students are waiting _______ a school bus now. A. for B. on C. at D. to 12. The tree is _______ our building. A. in front of B. in the front of C. front of D. on the front of 13. It’s cold outside. Please _______ your coat. A. put on B. put up C. dress D. wear 14. Look! The children _______ football. A. play B. plays C. is playing D. are playing 15. What _______ you _______ at the moment? A. are, do B. do, do C. are, doing D. do, doing 三、完形填空。（10分）
洛阳理工学院 / 学年第学期操作系统期末考试试题卷（第1套） 适用班级：考试时间: 120分钟 一、单项选择题(每小题2分, 共30分) 1.在下列特性中，哪一个不是进程的特性( )。 A) 异步性B) 并发性C) 动态性D)静态性 2. 为了对进程实施调度，设置了一个与进程相联系的( )，OS根据它而进行调度。 A) 进程状态字B) 进程优先数C) 进程标识D) 进程起始地址 3.在操作系统中，对信号量S执行V操作后，进程去唤醒另一阻塞进程的条件是 ( )。 A) S>0 B) s≤0 C) s=0 D) s<0 4. 下列算法中可用于磁盘移臂调度的是( ) A) 时间片轮转法B) LRU算法C) 电梯调度算法D) 优先级高者优先算法 5. 若系统中有五台绘图仪，每个进程均需要使用两台，则至多允许( )个进程参于竞争，而不会发生死锁。 A) 5 B) 2 C) 3 D) 4 6.在分页管理中，( )。 A)以页为单位分配内存，每页是一个连续存储区B)页与页之间必定不连续 C)页与页之间必定连续D)每页是不等长的 7.引入多道程序技术后，处理机的利用率( )。 A) 降低了B) 不确定C)提高了D) 没有变化 8. 多级反馈队列调度算法，就绪队列号越大所对应的时间片越长，若就绪队列i中一进程所占CPU的时间片到， 则其应进入( )。 A) 就绪队列i B) 就绪队列i-1 C) 就绪队列i+1 D) 阻塞队列 9. 分时操作系统采用时间片轮转进程调度算法，则该系统的进程PCB中不包括（）。 A) 处理机状态信息 B) 进程优先数C) 占用的资源清单D) 程序和数据的地址 10. 在分时系统中，当一个进程拥有的时间片到时，则该进程即由运行进入（）。 A) 阻塞B) 就绪C) 运行D) 提交 11.处于运行状态的作业存放在（）中。 A)外存B)内存C) 外存和内存D) 外存或内存 12.（）不是磁盘空间的分配方式。 A) 连续分配B) 索引分配C) 链接分配D) 随机分配 13.用户的应用程序中应该用设备的( )来使用设备。 A) 物理名B)逻辑名C) 逻辑名或物理名D) 逻辑名和物理名 14.改进后的CLOCK页面置换（淘汰）算法中，最佳的换出页面应该是（）。 A) 访问位A=0且修改位=0 B) 访问位A=0或修改位=0 C) 访问位A=0 D) 修改位=0 15.为了对紧急进程或重要进程进行调度，调度算法应采用（）。 A) 优先级法B) 先来先服务法C) 时间片轮转法D) 短进程优先法 二、填空题(每空2分, 共40分) 1.可变分区内存管理时，最佳适配算法与其它算法相比内存分配所产生的碎片（），最坏适配算法所产生的碎片 （）。 2.设某一临界区的公用信号量mutex，其初值为1，当mutex=－2时，表示有( )个进程在临界区内，有( )个进 程等待进入临界区。 3.若系统采用段页式内存管理，对于具有5个段的应用程序，该程序加载内存后，其所对应的段表有（）个，页 表有（）个。 4.对于页式内存管理，逻辑地址转换为物理地址时，页表与快表是同时查找的，对于某次的查询，（）可能有输 出也可能没有输出，最坏情况下使用的是（）的输出。 5. 页式与段式内存管理相比，( )更便于动态链接。