Houston, Texas (June 8. 2002)–in 2004, the National Aeronautics and Space Administration (NASA) will send two robots to separate places of Mars to seek out past or present signs of water. It is an exciting idea to send two robots driving over very different places of Mars at the same time, to be able to see what is on the other side of the hill.
Last month, NASA announced it was sending one robot to Mars, but after two weeks, it decided there was enough money for two. The robots will be sent up within two weeks of each other in May and June of 2003 from Kennedy Space Center. If all goes well, the two spacecraft will touch down on Mars, after a seven-and –a-half-month space flight, on January 2 and 20, 2004.
The robots, each weighing 150 kilograms, can cover 100 meters per day. They are designed to be able to examine the mineral content of the soil, and their special camera will take pictures of the lands and hills. Although they will be under control from the earth, the robots are able to move more freely compared to those sent up before them.
The actual landing points have not been determined yet, but the scientists say it will be in areas where they hope to find water.
49.According to the news report, scientists plan to send robots up to Mars to _____.
A.find out whether there is water on Mars   B.see if robots can find minerals there  
C.test how fast robots can drive there                 D.prove that robots can work on Mars
50.How long in between will the two robots be sent to Mars?
A.1 year       B. 7.5 months                  C. 2 months       D. 2 weeks
51. One of the important jobs for the robots on Mars is to _______.
A.study the soil                                     B. walk everywhere
C.test the new camera                                D. find a suitable landing point
52. We can infer from the last sentence that scientists ________.
A. have changed the landing points many times  B. hope to land the robots on the surface of water
C. are still working on the plan                      D. know where they can find water
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

  Fifteen people were killed and 38 others injured in a road accident early Wednesday morning in Ens hi, Central China’s Hu bei Province.
The bus, travelling from Wanzhou in Southwest China’s Chongqing Municipality to  Shen zhen in South China’s Guangdong Province, had 53 passengers on board,three more than permitted.
At around 1 am on Wednesday, the bus increased speed gradually on a curve(彎路)and plunged(往前沖) more than 30 metres into a valley below. Thirteen people, including one of the two drivers, died at once. Two others died on the way to hospital.
Although the cause of the accident is still unclear, the local police said the driver paid no attention to the official warning signs on the expressway(高速公路).
It hit a section which had been closed as a result of snow.
Because of the cold weather and icy roads,the expressway had been closed by police since Tuesday morning. But the bus drivers took the dangerous route, paying no attention to the warnings.
The rescue team, which included more than 30 medical workers and 120 local villagers,joined together and rushed to the scene at the news of the accident. By 5 am, all of the injured had been sent to three local hospitals for emergency treatment. A hospital source said most of the patients were in a stable(穩(wěn)定的)condition but a few were still in danger.
According to a 2009 national public opinion poll, traffic accidents ranked as people’s third biggest security(安全) concern.
小題1: When the accident took place,____.
A.the bus was on the way to Shenzhen
B.most of the passengers were sound asleep
C.a(chǎn)ll the passengers were given immediate rescue
D.it was snowing hard
小題2: The expressway was closed to ____.
A.protect the passengers from being frozen
B.make the police have a good rest
C.stop cars traveling around
D.a(chǎn)void(避免) the happening of traffic accidents
小題3: What the local villagers did showed that they were ____.
A.curious(好奇的)B.warm hearted C.frightenedD.simple minded

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:完形填空

Music comes in many forms; most countries have a style of their own. 1 the turn of the century when jazz was born, America had no prominent 2 ofits own.No one knows exactly when jazz was 3 ,or by whom.But it began to be 4 in the early 1900s.Jazz is America?s contribution to 5 music.In contrast to classical music, which 6 formal European traditions, jazz is spontaneous and free?form.It bubbles with energy, 7 the moods, interests, and emotions of the people.In the 1920s jazz 8 like America, and 9 it does today.The 10 of this music are as interesting as the music 11 .American Negroes, or blacks, as they are called today, were the jazz 12 .They were brought to Southern States 13 slaves.They were sold to plantation owners and forced to work long 14 .When a Negro died his friend and relatives 15 a procession to carry the body to the cemetery.In New Orleans, a band often accompanied the 16 .On the way to the cemetery the band played slow, solemn music suited to the occasion. 17 on the way home the mood changed.Spirits lifted.Death had removed one of their 18 ,but the living were glad to bealive.The band played 19 music, improvising(即興表演) on both the harmony andthe melody of the tunes 20 at the funeral.This music made everyone want to dance.It was an early form of jazz.
1.A.By B.At C.In D.On
2.A.music B.song C.melody D.style
3.A.discovered B.acted C.invented D.designed
4.A.noticed B.found C.listened D.heard
5.A.classical B.sacred C.popular D.light
6.A.forms B.follows C.approaches D.introduces
7.A.expressing B.explaining C.exposing D.illustrating
8.A.appeared B.felt C.seemed D.sounded
9.A.as B.so C.either D.neither
10.A.origins B.originals C.discoveries D.resources
11.A.concerned B.itself C.available D.oneself
12.A.players B.followers C.fans D.pioneers
13.A.for B.as C.with D.by
14.A.months B.weeks C.hours D.times
15.A.demonstrated B.composed C.hosted D.formed
16.A.demonstration B.procession C.body D.march
17.A.Even B.Therefore C.Furthermore D.But
18.A.number B.members C.body D.relations
19.A.sad B.solemn C.happy D.funeral
20.A.whistled B.sung C.presented D.showed

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


BEIJING — The rescue operations at a coal mine accident have ended with 105 miners dead. The State Council has organized an investigation team to probe (調(diào)查) into what caused the disaster in the city of Linfen, North China’s Shanxi Province. Preliminary(初步的) investigations show the illegal mining of an unauthorized seam(未經(jīng)授權(quán)的煤層), and the number of miners who had been sent down the shaft far exceeded its capacity.
This mine was found to have long ignored the rules to steal state coal, and did not have a list of miners employed to check the number of miners missing after the accident.
How did such a coal mine get all the necessary licenses for production? How did it pass the three safety inspections the local government organized last month?
In response to this disaster, the Shanxi governor promised to set up hotlines for people to report illegal coal mines and rewards as high as 100,000 yuan for tip-offs.
We appreciate the action this governor has taken to solving the coal mining problems, and we believe that the reporting scheme will help to stop the existence of illegal coal mines.
But at the same time we have reason to question how governments at various levels supervise these mines.
The sad fact that such a mine with serious safety problems could pass three consecutive (連續(xù)的)local government safety inspections in a month is enough to tell us how ineffective the safety inspections were.
What if these inspections were just a formality(形式)? What if the inspectors were bribed by the mine owners to turn a blind eye to the safety dangers? We can well imagine what would happen if reports about mine problems were handled by such officials.
So a thorough probe must find out who are responsible for the death of so many miners. A real safety inspection and management system must be established to guarantee that safety dangers will be removed
64. What is NOT one of the causes of this coal mine accident?
A. The workers didn’t operate properly.
B. The mine didn’t obey the rules to mine for coal.
C. A lot more miners than allowed were working under the mine.
D. The safety inspections were ineffective.
65. According to the writer, who should be further investigated?
A. Mine owners and miners.                B. Miners’ families and mine staff.
C. Government officials and safety inspectors.  D. The Shanxi governor and miners.
66. What can we infer from the passage?
A. More than 105 miners died in the disaster.
B. Some other coal mines like this one exist in Shanxi province.
C. Safety inspectors just turned a blind eye to hidden dangers.
D. The three inspections were only a formality.
67. What does the underlined word “tip-offs” probably mean in Paragraph 4?
A. Some warnings.             B. Some money for one’s service.
C. Some secret information.     D. Some pieces of advice.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:完形填空


III. Reading Comprehension:31%
Section A
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that fits the context.
Good news! Tiny robots designed by University of Nebraska researchers may   50     doctors on Earth to help perform surgery on patients in space.
The tiny, wheeled robots, which are about 3 inches tall and as wide a lipstick case, can be slipped into small incisions ( 切口 ) and computer-controlled by surgeons in different   51   . Some robots are equipped with    52    and lights and can send images back to surgeons and others have surgical tools attached that can be controlled    53   .
“ We think this is going to    54    open surgery.” Dr. Dmitry Oleynikov said at a news conference. Oleynikov is a    55    in computer-assisted surgery at the University of Nebraska Medical Center in Omaha.
Officials hope that NASA will teach    56    to use the robots soon enough    57   
surgeries could one day be performed in space.
The camera-carrying robots can provide    58    of affected areas and the ones with surgical tools will be able to operate inside the body in ways surgeons’ hands can’t. The views from the camera-carrying robots are    59    than the naked eye, because they    60    back color images that are magnified. Because several robots can be inserted through one incision, they could reduce the amount and    61   of cuts needed for surgery, which would decrease recovery time. This is particularly    62    to those patients who have been weakened by long illness.
Eventually, Oleynikov said, “ The tiny robots may enable surgeons to work without ever __63__their hands in patients’ bodies. That is the    64   . It is getting easier and easier. We can do even more with these devices.”
50.  A. use                         B. pay                          C. allow                       D. force
51.  A. locations                 B. directions                 C. fields                       D. ways
52.  A. operators          B. monitors           C. cameras              D. flashes
53.  A. automatically       B. remotely           C. manually              D. widely
54.  A. perform          B. undergo            C. follow               D. replace
55.  A. reporter           B. specialist            C. designer              D. director
56.  A. astronauts         B. nurse               C. teachers              D. trainers
57.  A. in order to        B. so that              C. thus               D. in case
58.  A. answers          B. services              C. views               D. insights
59.  A. weaker           B. stronger                    C. poorer               D. better
60.  A. send             B. produce                    C. change                     D. create
61.  A. measure           B. size                 C. power              D. pressure
62.  A. relevant           B. true                C. helpful             D. interesting
63.  A. touching          B. pressing             C. holding            D. placing
64.  A. ambition         B. goal                C. achievement         D. victory

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


The following table shows some results of a survey (調(diào)查)in which 800 Japanese school pupils were asked to give their impressions(印象)of their classroom teachers. The pupils’ impressions were found to differ depending on whether the teacher was new (with less than three years’ experience), middle-standing(ten to twenty years), or veteran(有經(jīng)驗(yàn)的)(twenty to thirty years). The numbers in the table show the percentage of the pupils who answered “very satisfied” or “extremely satisfied” for each question item (項(xiàng)目)
Question Items
New
Middle-standing
Veteran
1.Shows sense of humor in class
2.Explains clearly
3.Teaches in a relaxed(放松的)manner.
4. Writes neatly on the blackboard
5. Lets pupils ask questions in class
6. Makes checks in notebooks
7. Speaks loudly and clearly
8. Treats pupils equally
9. Cares about pupils opinions
10. Spends time with pupils between classes
42
33
30
9
18
22
45
43
47
25
56
58
46
43
30
30
85
58
43
10
70
68
65
56
47
43
54
42
17
6
 
1. The pupils’ evaluation(評(píng)價(jià))can be said to rise at a steady rate(比率)as their teachers’ experience increases in Question Items______.
A. I and 4    B. 3 and 5     C. 6 and 8    D. 9 and 10
2. In contrast(對(duì)比)to the new teachers, the middle-standing and veteran teachers seem to have made a remarkable(顯著的)improvement in their ability to _______.
A. be fair to any pupil         B. evaluate pupils’ progress
C. present materials clearly     D. understand and play with pupils
3. Pupils seem to regard the new and the middle-standing teachers as being more_____.
A.relaxed in class than the veterans
B.interested in pupils’ ideas than the veterans
C.neat in appearance than the veterans
D.skilful at explaining than the veterans
4. Which of the following statements is true according to the table?
A.In the new teachers’ classes, pupils seem to ask questions more freely.
B.Pupils seem to be quite satisfied with the amount(量)of time their teachers spend with
them between classes.
C.The evaluation of the middle-standing teachers is lower than that of the veterans in seven
items.
D.Though veterans do not play games with pupils during breaks, their teaching is rated
highly.

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


第二部分閱讀理解(共25小題。第一節(jié)每小題2分,第二節(jié)每小題l分,i滿分45分)
第一節(jié)閱湊下列短文,從每題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng),并在
答題卡上將該項(xiàng)涂黑。
A
WASHINGTON(Reuters)-People who drink two or more sweetened soft drinks a week have a much higher risk of pancreatic cancer(胰腺癌),an unusual but deadly cancer,researchers reported on Monday.
People who drank mostly fruit juice instead of sodas did not have the same risk,the study
of 60,000 people in Singapore found.
Sugar may be to blame but people who drink sweetened sodas regularly often have other
poor health habits,said Mark Pereira of the University of Minnesota,who led the study.
“The high levels of sugar in soft drinks may be increasing the level of insulin(胰島素)in The body,which we think contributes to pancreatic cancer cell growth,”Pereira said in a statement.
Writing in the joumal Cancer Epidemiology,Biomarkers & Prevention,Pereira and colleagues
said they followed 60,524 men and women in the Singapore Chinese Health Study for l4 years.
Over that time,140 of the volunteers developed pancreatic cancer.Those who drank two or
more sweetened soft drinks a week had an 87 percent higher risk of being among those who got
pancreatic cancer.
Pereira said he believed the fndings would apply elsewhere。
“Singapore is a wcahhy country with excellent heahhcare.Favorite pastimes(消遣)are
eating and shopping,so the findings should apply to other western countries,”he said.
But Susan Mayne of the Yale Cancer Center at Yale University in Connecticut was cautious.
“Although this study found a risk,the finding was based on a relatively small number of
cases and it remains unclear whether it is a causal(因果的)connection or not!眘aid Mayne.
who serves on the board of the journal,which is published by the American Association for
Cancer Research.
Pancreatic cancer is one of the deadliest forms of cancer,with 230,000 cases globally.In
the United States,37,680 people are diagnosed with pancreatic cancer in a year and 34,290 die
of it.
4 1.According to the text,who is in control of the health study?
A.Mark Pereira.               B.Scientists from Singapore.
C.Researchers in Yale.         D.Susan Mayne.
42.We can infer from Pereira,s words that__.
A.the heahhcare in Singapore should be greatly improved
B.2 soft drinks a day are considered harmful to health
C.87 out of l40 volunteers developed pancreatic cancer
D.sugar might not be the only cause of pancreatic cancer
43.How does Susan seem to feel about the findings of the study?
A.Satisfied.     B.Doubtful.     C.Worried.   D.Hopeful.
44.The best title of the text might be________.
A.The Deadliest Forms of Cancer          B.Drink Fruit Juice Instead of Sodas
C.A Study in University of Minnesota      D.Sugary Soft Drinks Lead to Cancer

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解


BEIJING, March 1 (Xinhua)-China's top economic planning body has confirmed the government will take concrete actions to develop a low-carbon economy after it promised to considerably reduce carbon emission (排放) at  last year's Copenhagen Climate Conference.
China would include the low-carbon targets in the 12th five-year plan for national economic development (2011-2015) to build an energy-saving, ecologically friendly society, the National Development and Reform Commission (NDRC) said in a report to the Standing Committee of the 11th National People's Congress (NPC).
The report said the government would launch a series of technological and financial support policies to promote the use of non-fossil, renewable energies including wind, solar, biomass, geothermal (地?zé)? and nuclear power, aiming to increase its percentage of primary energy consumption to about 15 percent by 2020 from 9.9 percent at the end of last year.
China's installed wind power capacity (容量) reached 15 million kilowatts, with 10 million kilowatts under construction at the end of June 2009, while nuclear power under construction, installed hydro-electric power capacity and solar heating collection areas were the highest in the world, it said.
The commission was also planning to make a catalog (目錄) of emissions of greenhouse gases in an effort to build a monitoring and checking system to cut carbon emissions.
The economic planner decided to control unnecessary construction and industries with surplus (多余的)production capacities, such as steel, cement and electrolytic aluminum, to promote the energy efficiency and environmental protection.
The government had drafted a plan on regional development to transfer industries in eastern areas to central and western regions.
The State Council announced in November that China would reduce the intensity of carbon dioxide emissions per unit of GDP in 2020 by 40 to 45 percent compared with the level of 2005.
67.Which of the following best summarizes the low-carbon economy China is to develop?
A.Energy-saving and ecologically friendly.
B.Promoting the use of clean energy.
C.Developing the industry in the wild west.
D.Reducing carbon emissions per unit of GDP by 40 to 50 percent.
68.Which of the following does NOT belong to China's low-carbon measures mentioned in the text?
A.Limiting the use of nuclear power and other primary energy.
B.Setting up a system to monitor and check carbon emission.
C.Controlling unnecessary construction and industries with extra production capacities.
D.Planning to move industries from eastern areas to central and western regions.
69.If you are planning to start your own business in line with the low-carbon economy, which is the best choice?
A. An iron and steel plant.     B. A petrochemical works.
C. A solar heating company.  D. A construction company.
70.The passage is mainly about     .
A. China's plan of economy development in the 12th five-year plan
B. China's efforts to build up a low-carbon economy
C. NDRC's reaction to Copenhagen Climate Conference
D. NDRC's plan handed over to the Standing committee of 11th NPC

查看答案和解析>>

科目:高中英語(yǔ) 來(lái)源:不詳 題型:閱讀理解

A Municipal Report(Adapted from a story by O.Henry)(Ⅱ)
Azalea Adair herself opened the door when I knocked.She was about 50 years old.Her white hair was pulled back from her small,tired face.She wore a pale yellow dress.It was old,but very clean.
Azalea Adair led me into her living room.A damaged table,three chairs and an old red sofa were in the center of the floor.
Azalea Adair and I sat down at the table and began to talk.I told her about the magazine's offer an she told me about herself.She was from an old southern family.Her father had been a judge.
Azalea Adair told me she had never traveled or even attended school.Her parents taught her at home with private teachers.We finished our meeting.I promised to return with the agreement the next day, and rose to leave.
At that moment,someone knocked at the back door.Azalea Adair whispered a soft apology and went to answer the caller.She came back a minute later with bright eyes and pink cheeks.She looked ten year younger.“You must have a cup of tea before you go,”she said.She shook a little bell on the table,and small black girl about twelve years old ran into the room.
Azalea Adair opened a tiny old purse and took out a dollar bill.It had been fixed with a piece of blue paper and the upper right hand comer was missing.It was the dollar I had given to Uncle Caesar.“Go to Mr.Baker's store,Impy ,”she said,“and get me 25 cents' worth of tea and ten cents' worth of sugar cakes. And please hurry.”
The child ran out of the room.We heard the back door close.Then the girl screamed.Her cry mixed with a man's angry voice.Azalea Adair stood up.Her face showed no emotion as she left the room.I heard the man's rough voice and her gentle one.Then a door slammed and she came back into the room.“I am sorry,but I won't be able to offer you any tea after all,” she said.“It seems that Mr.Baker has no more tea.Perhaps he will find some for our visit tomorrow.”
We said good-bye.I went back to my hotel.
Just before dinner, Major Wentworth Caswell found me.It was impossible to avoid him.He insisted on buying me a drink and pulled two one-dollar bills from his pocket.Again I saw a torn dollar fixed with blue paper, with a corner missing.It was the one I gave Uncle Caesar.How strange,I thought. I wondered how Caswell got it.
63.We can judge from her behavior that Miss Adair was       
A.polite and elegant      B.confident and determined
C.poor and miserable    D.capable and hardworking
64.Adair seemed          after coming back from the back door.
A.a(chǎn)s calm as before    B.sadder    C.excited    D.surprised
65.The angry man with a rough voice outside might be           .
A.Uncle Caesar    B.Mr.Baker    C.Caswell  D.A stranger
66.When the narrator saw Caswell again at his hotel,he was surprised         .
A.that Caswell should find him
B.that Caswell insisted on buying him a drink
C.that Caswell pulled two one-dollar bills from his pocket
D.to find Caswell had the torn dollar bill with a comer missing

查看答案和解析>>

同步練習(xí)冊(cè)答案