科目: 來(lái)源: 題型:
The village was badly struck by the rare flood last night. The villagers were badly ________ food and shelter.
A. in time of B. in want of C. in charge of D. in possession of
查看答案和解析>>
科目: 來(lái)源: 題型:閱讀理解
One girl decided to study judo(柔道)although she had lost her left arm in a car accident.
The girl began lessons with an old Japanese judo instructor. The girl was doing well. So she couldn’t understand why, after three months of training, the instructor had taught her only one move.
“Instructor,” the girl finally said, “Shuldn’t I be learning more moves?”
“This is the only move you know, but this is the only move you’ll ever need to know,” the instructor replied.
Not quite understanding, but believing in her teacher, the girl kept training.
Several months later, the instructor took the girl to her first tournament. Surprising herself, the girl easily won her first two matches. The third match proved to be more difficult, but after some time, her opponent became impatient and charged. The girl skillfully used her one move to win the match. Still amazed by her success, the girl was now in the finals.
This time, her opponent was bigger, stronger and more experienced. For a while, the girl appeared to be overmatched. Concerned that the girl might get hurt, the referee called a time-out. She was about to stop the match when the instructor intervened(干預(yù)).
“No,” the instructor insisted, “Let her continue.”
Soon after the match restarted, her opponent made a serious mistake; she dropped her guard. Instantly, the girl used her move to pin her opponent. The girl had won the match and the tournament. She was the champion.
One the way home, the girl and her teacher reviewed every move in each and every match. Then the girl gathered the courage to ask what was really on her mind.
“Instructor, how did I win the tournament with only one move?”
“You won for two reasons,” the teacher answered. “First, you’ve almost mastered one of the most difficult throws in all of judo. Second, the only known defense for that move is for your opponent to grab your Left arm.”
The girl’s biggest weakness had become her biggest strength.
What can we learn about the girl?
A.She was disabled in an accident. B.She disliked judo training.
C.She learnt several moves. D.She won the first two matches hard.
The underlined word “overmatched” probably means .
A.impatient B.depressed C.defeated D.trapped
The girl won the championship because of .
A.her bravery B.her skills C.her tricks D.her strength
Which of the following is probably the best title of the story?
A.The Story of a Girl. B.A Disabled Girl.
C.Defense Matters. D.Weakness Becomes Strengh.
查看答案和解析>>
科目: 來(lái)源: 題型:閱讀理解
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”,said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/nanoelectromechanreal systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半導(dǎo)體). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶體結(jié)構(gòu)) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
Which of the following is true of Jae Kwon?
A. He teaches chemistry at MU.
B. He developed a chemical battery.
C. He is working on a nuclear energy source.
D. He made a breakthrough in computer engineering.
Jae Kwon gave examples in Paragraph 4_________.
A. to show chemical batteries are widely applied.
B. to introduce nuclear batteries can be safely used.
C. to describe a nuclear-powered system.
D. to introduce various energy sources.
Liquid semiconductor is used to _________.
A. get rid of the radioactive waste B. test the power of nuclear batteries.
C. decrease the size of nuclear batteries D. reduce the damage to lattice structure.
According to Jae Kwon, his nuclear battery _______.
A. uses a solid semiconductor B. will soon replace the present ones.
C. could be extremely thin D. has passed the final test.
The text is most probably a ________.
A. science news report B. book review
C. newspaper ad D. science fiction story
查看答案和解析>>
科目: 來(lái)源: 題型:
The performance will be given next week. You can go to the student union ______ tickets.
A. for B. with C. by D. on
查看答案和解析>>
科目: 來(lái)源: 題型:
I like this dress better than that one, but it costs almost four times
A. as much B. as many C. so much D. so many
查看答案和解析>>
科目: 來(lái)源: 題型:
—Would you like to come to the party?
—______, but I’m very busy preparing for the exam.
A. I have no time B. I’d like it C. I’d like to D. I’d rather not
查看答案和解析>>
科目: 來(lái)源: 題型:閱讀理解
完型填空(每小題1.5分,滿分30分)
Charlie and Jackie joined a wholesale company together just after graduation. Both worked very hard. After several years, the bosses promote Jackie to sales executive but Charlie_46_ a salesman. One day Charlie could not __47_ it anymore, tendered his resignation(辭職書) to the boss and complained the boss did not __48__ hard working staff, but only promoted those who flattered him. He thought it was really __49__.
The boss knew that Charlie had spared no _50___ for the company all these years, but in order to help Charlie realize the __51__ between him and Jackie, the boss ask Charlie to do the _52___: “go and find out if anyone is selling watermelon in the market.” Charlie returned and __53__ said yes. the boss asked.“how much per kg?” Charlie went back to the market to ask and returned to ___54__ $12 per kg.
The boss told Charlie that we would ask Jackie the _55___ question. Jackie went, returned and said,“boss, only one person is selling watermelon, $12 per kg, $100 for 10kg.he has a _56___ of 340 melons. on the table 58 melons and every melon weighs about 15kg,_57____ from the South two days ago. they are fresh, red and of good __58__ .” Charlie was _59____ and realized the difference between himself and Jackie. he decided not to __60___ but to learn from Jackie.
A. made B. because C. remained D. kept
A. take B. do C. get D. put
A. enjoy B. meet C. reply D. value
A. unusual B. unfair C. careless D. selfless
A. rest. B. trouble C. effect D. effort
A. competition B. relationship C. difference D. distance
A. following. B. finding C. shopping D. searching
A. still B. again C. even D. only
A. offer. B. answer C. remind D. repeat
A. difficult. B. familiar C. same D. simple
A. total B. lot C. pile D. number
A. taken B. come C. bought D. heard
A. value B. quality C. condition D. shape
A. struck B. moved C. puzzled D. encouraged
A. stay B. stop C. work D. leave
查看答案和解析>>
科目: 來(lái)源: 題型:閱讀理解
根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
Whenever you are using the computer, your eyes are hard at work. Be kind to them by positioning the monitor 18 to 20 inches away from your face.
Position the screen at your eye level, with the top of the monitor itself level with your forehead. This will keep you from having to lean your neck back or forward to see the monitor. They can help you raise the monitor a little higher by putting a few books under it. They can also raise the height of the chair or you can sit on a pillow or two.
Here is a good piece of advice: . Even if you don’t have to go to the bathroom, be sure to take breaks. Kids shouldn’t sit at a computer for more than 30 minutes without a break.
When it’s time for a break, start with the eyes. . This can give your eyes a rest from all that focusing on the computer monitor.
Try to move your muscles. Go for a walk or dance in front of the mirror. Doctors advise only one or two hours of screen time per day, which includes TV, the computer and computer games. Make computer time just one of the activities you do instead of the only thing you do. Your body will thank you forever!
A. Never play computer games too long.
B. Your mom or dad can help you get adjusted.
C. Then you’ll want to give your body a break, too.
D. Focus on something far away by looking out of a window.
E. Leaning your neck back or forward too long will cause pain and damage.
F. At this distance, you shouldn’t have to lean in to read what’s on the screen.
G. Don’t get so involved in the computer that you forget to go to the bathroom.
查看答案和解析>>
科目: 來(lái)源: 題型:
He stood still in front of the shop windows as if he were _____ something.
A. admiring B. looking C. respecting D. liking
查看答案和解析>>
科目: 來(lái)源: 題型:
His parents died when he was very young, so he was by his grandmother.
A. brought up B. grown up C. taken up D. picked up
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無(wú)主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com