For hundreds of years humans have dreamed of finding life on distant planets.Now the hope of discovering real evidence of life has greatly increased.
NASA's Mars detector（探測器）,Opportunity,succeeded in finding signs that water once existed on the planet.Opportunity landed on Mars in January.Scientists now believe that the planet could once have supported life.
This discovery was chosen by ?Science?,one of the world's leading magazines,as the most important scientific achievement of 2004 last Friday.
“This little,wheeled,one-armed box went around another planet and has done something no human has ever managed,” according to ?Science?.“It has discovered another place in the universe where life could once have existed.
“Although we still can't say that life could have existed in this environment,it is now certain that there was water on Mars,”said Steve Squyres,one of the scientists working on the Mars mission.The evidence comes from pictures and chemical readings taken by Opportunity.It includes marks on rocks like those caused by following water on Earth and salty chemicals like those found in dried-out sea-beds.Scientists said the new evidence proved beyond doubt that water has existed on Mars.But it is still unknown whether the water was like an ocean or just ice.
While Opportunity has not found any signs of life,the presence of water means life is possible.“In everything we know about life on Earth,there is no example without liquid water,” Squyres said.“So water is important for the search for life on Mars.”
Researchers agree that a future mission（任務） should bring back physical samples（樣品）.But some scientists worry about the risk that this could introduce dangerous foreign creatures to Earth.“The problem here is how to get the samples back,”Squyres replied.“I think it is our responsibility to limit any risk.”
What proved that water existed on Mars?
A.The physical samples with salty chemicals.
B.The marks on rocks and salty chemicals.
C.Scientific achievements of 2004.
D.Creatures from Mars.
Which of the following is true according to the text?
A.It is now certain that there was water on Mars.
B.The water on Mars was like an ocean.
C.Evidence of life on Mars has been found.
D.Search for life on Mars is a great risk to humans.
How did scientists draw the conclusion that there was water on Mars?
A.The world's leading magazine has announced the fact.
B.Scientists have taken many pictures and chemical readings on the Mars.
C.Astronauts have got some rocks from Mars.
D.Scientists have made a study of the pictures and readings sent back by Mars detector.
It can be inferred that,if the creatures from Mars came to earth,_________.
A.they would be kind to humans
B.they would be cruel to humans
C.they would be a great danger to Earth
D.it would be hard to say whether it would be good news or bad news
科目：高中英語 來源： 題型：閱讀理解
Salvation Army Angel Program
Angel Tree collects gifts for children and families in need. Participate by selecting an angel from any Angel Tree at all Cyprus Credit Union location or any Utah Macy's Department store. Shop for your angel, then return your new, unwrapped gift to the same Angel Tree. Gifts must be returned before December 14. For more information, call (801) 988-5678 in the Salt Lake area,(801) 374-2588 in the Provo area.
Utah Association for People with Intellectual Disabilities Holiday Gift Box Program
The program serves primarily low-income adults with intellectual disabilities who don't qualify for other programs because of age limits, said Joyce Whalen, the association's board president. To donate, visit the association at 1326 S.2100 East from 9am to about 5:30 pm to choose an ornament(裝飾物) that provides information about an individual who will benefit from the program. Shop for new items and return them by December 14. Donations of generic items, such as towels, socks and hygiene products also accepted, as are monetary donations. For more information, call 801-440-1674.
Utah Foster Care Foundation's Giving Tree Program
The program seeks new gifts and cash donations to fulfill the holiday wishes of more than 1,000 children in state-licensed foster homes." Many of the children in care have been removed from their biological homes because of neglect or abuse," said Nikki Mackay, the foundation's director. " Christmas can be a difficult time for them." To learn how to support the program, call 877-505-5437.
Utah State Hospital Forgotten Patient Program
The program provides Christmas gifts for hundreds of patients with mental illness. In the history of the program--which may go back as far as 60 years, organizer Shawna Peterson said, "we've never had a forgotten patient." And she doesn't want this year to change that. To support the program, contact Peterson at 801-344-6088.
After you buy an angel, you should ________.
post it to where you bought B. open its package to examine it
C. send it to families in need for yourself D. bring it back in its original form
If you want to help adults with intellectual disabilities, you should call_____.
A. 801-440-1674 B.801-988-5678
C. 877-505-5437 D. 801-344-6088
The underlined phrases "biological homes" in the third program refers to ______.
homes where they are just brought up
homes where their natural parents live
homes where they learn biology
homes where are related to bacteria
From the last program, we can infer that ______.
the patients often forgot to come to the hospital
the patients are often forgotten to be looked after
the patients are being taken good care of
the patients had a poor memory in the hospital
查看答案和解析>>
科目：高中英語 來源：陜西省延安中學2010屆高三下學期第三次模擬考試 題型：閱讀理解
C
Centuries ago, man discovered that removing moisture（濕氣） from food helps to store it, and that the easiest way to do this is to expose the food to sun and wind.
All foods including water — cabbage and other leaf vegetables contains as much as 93% water, potatoes and other root vegetables 80%, lean (瘦的) meat 75% and fish, anything from 80% to 60%, depending on how fatty it is. If this water is removed, the activity of the bacteria which cause food to go bad is controlled.
Nowadays most foods are dried mechanically. The conventional method of such dehydration (脫水) is to put food in chambers (室) through which hot air is blown at temperature of about ll0'C at entry to about 43'C at exit. This is the usual method for drying such things as vegetables, minced meat, and fish.
Liquids such as milk, coffee, tea, soups and eggs may be dried by pouring them over a heated steel cylinder (圓筒), then put them into a chamber through which a current of hot air passes. In the first process, the dried material comes off the roller (滾筒) as a thin film which is then broken up into small, though still relatively flakes (薄片). In the second process it falls to the bottom of the chamber as small powder. Where recognizable pieces of meat and vegetables are required, as in soup, the ingredients (成分) are dried separately and then mixed.
Dried foods take up less room and weigh less than the same food packed in cans orfrozen, and they do not need to be stored in special conditions. For these reasons theyare invaluable to the climbers, explorers and soldiers in battle, who have little storagespace. They are also popular with housewives because it takes so little time to cook them.
54．It can be inferred from the passage that ________.
A．the fattier fish contain as much water as the lean one
B．the fattier the fish is, the more water it may contain
C．a fatty fish holds less water than a lean one
D．the water content of fish has nothing to do with the content of their fat
55．The underlined word "conventional" in Paragraph 3 can most probably be replaced by ______.
A．traditional B．scientific C.particular D.special
56．Which of the following statements is NOT true about drying food?
A．The removal of water in food helps prevent it from going rotten.
B．The open-air method of drying food has been known for hundreds of years.
C．In the course of dehydration, the temperature of hot current coming from entry to exit is
gradually going up.
D．The process of drying liquids is much more complex than that of drying solid food.
57．The last paragraph mainly talks about __________.
A．the reason why housewives like dried food
B．the general convenience of dried food
C．the methods of storing food
D．the advantages of dried, canned and frozen food
查看答案和解析>>
科目：高中英語 來源：河南省2009-2010學年度高一下學期必修4單元檢測試題（英語） 題型：閱讀理解
The gigantic dam of the multi-function water control facility would be finished nine months ahead of schedule, said an engineer who is in charge of the Three Gorges Project. He said by June, the workers would have built the half-done dam from the southern bank of the river to the height of 185 meters. The Three Gorges Project will be capable of controlling the floods on the Yangtze by then and generating more electricity. And the level of the water stored in the reservoir will rise from 135 meters at present to 156 meters.
Situated near the Xiling Gorge, the easternmost gorge of the Three Gorges on the middle reaches of the Yangtze River, the Three Gorges Dam is designed to have a length of 2,309 meters and a height of 185 meters.
It will also have the functions for flood control, power generation and navigation. It will be built from northern and southern banks of the Yangtze, which has been troubled by floods for hundreds of years.
Launched in 1993, the Three Gorges Project, including the 185-meter-high dam and 26 generators on both banks of the Yangtze, is being built in three phases. The preparations and construction of the first phase were carried out between 1993 and 1997. The Yangtze was dammed at the Three Gorges area for the first time on November 8, 1997.
The entire Three Gorges Project is expected to be completed in 2009 and by then, it will be able to generate 84.7 billion kwh of electricity every year.
63. The underlined word in the fourth paragraph might mean ____.
A. places B. periods C. gorges D. dams
64. According to the passage, we know _______.
the construction will be completed ahead of time
the biggest function of the dam is used to control flood
the Three Gorges Dam will be finished in ten years
the dam will be 156 meters tall when it is finished
65. Which of the following statements is TRUE according to the passage?
A. The Yangtze River was first dammed in the year 1993.
B. The water level in the reservoir will remain at 135 meters.
C. The Three Gorges Dam is on the easternmost part of the river.
D. The first phase of this project is finished in 1997.
查看答案和解析>>
科目：高中英語 來源：2011-2012學年山西省臨汾一中高二第二次月考英語試卷 題型：閱讀理解
Ireland has had a very difficult history. The problems started in the 16th century when English rulers tried to conquer Ireland. For hundreds of years, the Irish people fought against the English. Finally, in 1921, the British government was forced to give independence to the south of Ireland. The result is that today there are two “Irelands”. Northern Ireland, in the north, is part of the United Kingdom. The Republic of Ireland, in the south, is an independent country.
In the 1840s the main crop, potatoes, was affected by disease and about 750,000 people died of hunger. This, and a shortage (短缺) of work , forced many people to leave Ireland and live in the USA, the UK, Australia and Canada. As a result of these problems, the population fell from 8.2 million in 1841 to 6.6 million in 1851.
For many years, the majority of Irish people earned their living as farmers. Today, many people still work on the land but more and more people are moving to the cities to work in factories and offices. Life in the cities is very different from life in the countryside, where things move at a quieter and slower pace.
The Irish are famous for being warm-hearted and friendly. Oscar Wilde, a famous Irish writer, once said that the Irish were “the greatest talkers since the Greeks”. Since independence, Ireland has revived(復興) its own culture of music, language, literature and singing. Different areas have different styles of old Irish song which are sung without instruments. Other kinds of Irish music use many different instruments such as the violin, whistles, etc.
【小題1】What does the author tell us in paragraph 1?
| A．How the Irish fought against the English. |
| B．How Ireland gained independence. |
| C．How English rulers tried to conquer Ireland. |
| D．How two “Irelands” came into being.. |
| A．food shortages in the 1840s led to a decrease in population |
| B．people are moving to the cities for lack of work in the countryside |
| C．it is harder to make a living as a farmer than as a factory worker |
| D．different kinds of old Irish songs are all sung with instruments |
| A．the Irish character | B．Irish culture |
| C．Irish musical instruments | D．a famous Irish writer |
| A．Life in Ireland |
| B．A Very Difficult History |
| C．Ireland, Past and Present |
| D．The Independence of Ireland |
查看答案和解析>>
科目：高中英語 來源：2012-2013學年遼寧丹東寬甸二中高一下學期學期初摸底測試英語試卷（帶解析） 題型：閱讀理解
The Eiffel Tower was built in 1889, in memory of the 100th birthday of the French Revolution. The Prince of Wales, later King Edward VII of England, opened the tower. Of the 700 suggestions that were handed in, Gustave Eiffel’s was chosen.
However, at first, it was not well accepted by all and a group of people — including many well-known writers and painters at that time — were fiercely against its design.
Being about 300 meters in height, and 7,000 tons in weight, it was the world’s tallest building until 1930. It was a great project for France. 300 workers took two years to build it. It isn’t an ordinary building, since it is almost made of steel. For example, its body moves around at most 12 cm in heavy wind. Moreover, its height changes up to 15 cm according to the temperature.
It was almost destroyed in 1909, but was saved because of its antenna(天線), which is used for communication at that time. Beginning in 1910 it became part of the International Time Service. French radio and French television have also made good use of its height.
The Eiffel Tower has also seen a few strange things. In 1923, a journalist rode a bicycle down from the first level of it. And in 1954, a mountain climber climbed on top of it and tried to measure its exact height.
Anyway, although its birth was difficult, it is now well accepted all over the world. It has been considered as one of the symbols of Paris.
【小題1】The passage mainly tells us ________.
| A．the history of the Eiffel Tower |
| B．some information about its design |
| C．what the Eiffel Tower was used for |
| D．how it became one of the symbols of Paris |
| A．Many people couldn’t accept the Eiffel Tower at the beginning. |
| B．It was the world’s tallest building for hundreds of years. |
| C．A journalist rode down from the Eiffel Tower in 1954. |
| D．The Eiffel Tower was saved because of its height. |
| A．1889 | B．1923 | C．1789 | D．1930 |
查看答案和解析>>
湖北省互聯(lián)網違法和不良信息舉報平臺 | 網上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權舉報專區(qū)
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com
