-
（） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.
A . Because
B . Owing to
C . For
D . No matter
-
（）(我们没有人料到主席会出现) at the party. We thought he was still in hospital.
-
In the ancient time, there was a hero named Hou Yi who was excellent at shooting. His wife was Chang’e.
-
He was looking admiringly at the photograph published by Collins in ____ with the Imerial Museum.
-
There is no ________ evidence that people can control their dreams, at least in experimental situations in a lab.
-
Jobs dropped out of Reed College as soon as he was enrolled there. (T/F)
-
When asked, he said he didn’t know it was ________ to ride on the sidewalk there.
-
At least the _______ was done, he said, and the money was in.
A、dear
B、 deal
C、deer
D、 ideal
-
What reference is in the following sentence?When he was at college , Alex was a great friend of mine.
-
He gave us a （） stay at home on the National Day, because there were crowds everywhere in the city.
-
At least he was there in time to tell his adventures to Jim while Jim did______of the work.
A．three fourths
B．three fourth
C．threes fourths
D．threes fourth
-
It is obvious that there are at least two vitamins．______ is soluble in fat; _____ is soluble in water．
A.The one…the other
B.One…the other
C.One…another
D.One…the another
-
A:Are you satisfied with What He has said and done？ B:Not in the least、 it couldn’t be ____.
A、 so bad
B、 much better
C、 any worse
D、 the best
-
There was a big fire last night , but it was ______in time .T
A．put off
B．put on
C．put away
D．put out
-
A young man who lived in London was in love with a beautiful girl. Soon she became his fiancée (未婚妻). The man was very poor while the girl was rich. The young man wanted to make her a present on her birthday. He wanted to buy something beautiful for her, but he had no idea how to do it, as he had very little money. The next morning he went to a shop. There were many fine things there: gold watches, diamond… but all these things were too expensive. There was one thing he could not take his eyes off. It was a beautiful vase. That was a suitable present for his fiancée. He had been looking at the vase for half an hour when the manager of the shop noticed him. The young man looked so pale, sad and unhappy that the manager asked what had happened to him.
The young man told him everything. The manager felt sorry for him and decided to help him. A bright idea struck him. The manager pointed to the corner of the shop. To his great surprise the young man saw a vase broken into many pieces. The manager said: "When the servant enters the room, he will drop it."
On the birthday of his fiancée the young man was very excited. Everything happened as had been planned. The servant brought in the vase, and as he entered the room, he dropped it. There was horror on everybody's face. When the box was opened, the guests saw that each piece was packed separately.
6. The story took place ______.
A. in France B. in the United States
C. in Germany D. in England
7. Which of the following is true？
A. A rich young man fell in love with a beautiful girl.
B. The young man had enough money to buy a beautiful vase.
C. The young man loved the girl but the girl didn't love him.
D. The young man's family was poor while the beautiful girl is rich.
8. Why did the young man want to buy a present for the girl？
A. He wanted to give her a Christmas present.
B. He fell in love with her.
C. Her birthday was coming soon.
D. They were going to get married.
9. Why did the shop manager come to talk to the young man？
A. He looked very excited.
B. He was poorly dressed.
C. He looked pale and sad.
D. He said he wanted to buy a beautiful vase.
10. On the birthday of his fiancée, the young man was excited because ______.
A. the girl was in love with him
B. the girl looked beautiful
C. he was not sure whether his trick would be seen through
D. the girl was happy and gay
-
Surgeons will soon be able to enter the eye to carry out operations—at least in a virtual sense. Techniques derived from virtual reality the computer system that immerses operations in an artificial computer-generated world—will allow surgeons to feel as if he could see the in side of the eye during an operation, creating the illusion that they are actually there.
Researchers at the Biorobotics (生物机械技术)Laboratory of McGill University in Montreal are building a robot , known as Micro Surgery robot-1(MSR- I for short), that will perform. delicate operations under the control of a human surgeon. The robot is specifically designed for performing eye surgery but could have other applications, such as the removal of brain tumors. The system could also be used to allow surgeons and their students to practise simulated surgery that feel like the real thing- without the real consequences for the patients.
During the operations, the surgeon manipulates a set of control known as the master. These are connected through a high- performance computer to the robot. Both the master and the robot have two limbs, When the surgeon moves the masters' limbs, the robots limbs move in exactly the same way, except that the movements can be scaled down as much as a thousand times. This will eliminate hand tremor and poor accuracy and thus reduce the damage to the eye that can occur with present microsurgery techniques. Each of the robots limbs has a minimum movement of one micrometer---more than one hundred times the precision of the human hand.
The computer also creates a three - dimensional robot' s eye view of the inside of the eye that the surgeon can see by wearing a virtual reality helmet (虚拟现实头盔) that has a small lens in front of each eye.
To provide the surgeon with such a realistic experience, MSR-I must be able to move rapidly, but this requires extremely fast computing. To handle the computational demands of instant interaction, the McGill team is constructing its own parallel-processing computer., It is al so studying areas such as muscle mechanism, artificial intelligence and optics, and has a already built another micro robot MR- I, capable of manipulating a single living cell.
Although commercial applications of the new system are not expected for several years, its basic mechanical components will be ready for testing in a few months, "The day when micro robots will be able to perform. surgery without human intervention is many years away," says Hunter, "in the meantime , a system such as MRS-I is a necessary precursor."
The so-called "virtual reality "mentioned in this passage is actually.
A．a surgical tool used for operations
B．a computer system used to produce life- like illusions
C．a new kind of applications in a visual technology.
D a way to carry out operations in a visual sense
-
He didn’t know I was in his office. He was too busy to_______me.
A.pay attention to
B.Notice
C.Know
D.Realize
-
Music reached its pinnacle in the 19th century. Every leading nation produced its share of great composers. There was a bewildering array of national schools and musical styles as the once obscure musician came into his own. Music became a widespread and democratic art. The ardent music lover turned to Vienna, the music center at the beginning of the last century. However, Paris was not far behind, especially in the field of operatic music. As the century progressed, the Germans became paramount in orchestral and symphonic music. The growth of German music can be said to have culminated with Ludwig van Beethoven. Beethoven was able to free music from the traditions which had tended to constrict it. He was a child prodigy who held an important musical post at the age of 14. He was a successful concert pianist, but when his health began to fail he turned to composing. Even though bereft of hearing at the age of 49, he did not falter in his work.
-
That cold January night, I was growing sick of my life in San Francisco. There I was, walking home at one in the morning after a tiring practice at the theater. With opening night only a week
away, I was still learning my lines. I was having trouble dealing with my part-time job at the bank and my acting at night at the same time. As I walked, I thought seriously about giving up both acting and San Francisco. City life had become too much for me.
As I walked down empty streets under tall buildings, I felt very small and cold. I began running, both to keep warm and to keep away from any possible robbers (抢劫犯). Very few people were still out except a few sad-looking homeless people under blankets.
About a block from my apartment (公寓房间), I heard a sound behind me: I turned quickly, half expecting to see someone with a knife or a gun. The street was empty. All I saw was a shining streetlight. Still, the noise had made me nervous, so I started to run faster. Not until I reached my apartment building and unlocked the door did I realize what the noise had been. It had been my wallet falling to the sidewalk.
Suddenly I wasn't cold or tired anymore. I ran out of the door and back to where I'd heard the noise. Although I searched the sidewalk anxiously for fifteen minutes, my wallet was nowhere to be found.
Just as I was about to give up the search, I heard the garbage truck (垃圾车) pull up to the sidewalk next to me. When a voice called from the inside, "Lily Smith？" I thought I was dreaming. How could this man know my name？ The door opened, and out jumped a small red-haired man with an aroused look in his eyes. "Is this what you're looking for？" he asked, holding up a small square shape.
It was nearly 3 a.m. by the time I got into bed. I wouldn't get much sleep that night, but I had gotten my wallet back. I also had gotten back some enjoyment of city life. I realized that the city couldn't be a bad place as long as people were willing to help each other.
How did the writer feel when she was walking home after work？
A．Cold and sick.
B．Fortunate and hopeful.
C．Satisfied and cheerful.
D．Disappointed and helpless.
-
One night when Mr. Robinson was asleep，he was woken up by some strange noise outside his house.“Thieves，”he thought. Jumping out of bed，he took his gun and hurried to the bedroom window. The room was not shining and the night was rather dark. But he could see a white shape. It looked like a man in the garden. He pointed his gun at it，fired and went back to bed. Early in the morning，he went down to the garden. His shirt was hanging from a tree. He had washed it the day before and hung it on the tree do dry. It had a hole right through the middle. Mr. Robinson was really frightened out of his life when he saw it and began to tremble(颤抖)。 His neighbour arrived at that moment.“How are you today，Mr，Robinson？”he asked in an anxious voice. “You don’t look well.”
“I’m all right，thank you，”said Mr. Robinson. “But I’m lucky to be alive. You see that shirt there？”
“Yes？”said the neighbour.
“If I’d been wearing that shirt last night，”said Mr. Robinson，“I’d be a dead man now.”
1、When Mr. Robinson jumped out of his bed and went to the window，he saw ________ in the garden.
A、a thief
B、something like a man
C、a white shirt on a tree
D、nothing
2、Who had hung the shirt on the tree the day before________
A、A thief.
B、Mr. Robinson himself.
C、Mr. Robinson’s neighbour
D、Mr. Robinson’s wife.
3、After firing the gun，Mr. Robinson________
A、went back to bed
B、went to the garden to see what it was
C、felt no longer afraid
D、looked for the shirt he had washed the day before
4、The next morning Mr. Robinson’s neighbour came and saw him looking________
A、surprised
B、unhappy
C、sick
D、angry.
5、The title“A Narrow Escape”suggests that one has________
A、succeeded in escaping to escape
B、failed.
C、run away
D、only just avoided death
-
He was too busy to do any exercise at all until he turned And he is in much better______now than ever before.
A．form
B．condition
C．look
D．shape
-
(2020泸县开学考试)
75
As was reported that there was an accident at a corner of the Roman Street in this morning. A car ran into a truck and fortunately, nobody got injured. Who will be responsible for an accident is still under investigation. What the police should do now is that they must find out what led the accident. They said it was difficult of them to judge because how the accident happened was not clear. Perhaps the reason was that the driver was too tiring to stop the car in time. The driver didn't admit the fact that he is driving too fast at the turning. The police doubted that what he said was true and decided to make a farther investigation.
-
英译汉He says that while those at the university are "scared" there is no indication thus far that identity thieves have used any stolen data, and that while the investigation is still in process, the actual number of those affected by the hacking may be just 5% or less of the 800,000 whose data was potentially vulnerable.
-
A（n) _______ is a person who comes to a country where he was not born in order to settle there.
A．immigrant
B．brave
C．squash
D．pilgrim
