题目
题型：不详难度：来源：
Scientists have been monitoring the progress of a 390-metre-wide asteroid ever since it was discovered last June. They have announced that it could hit the earth, causing huge damage, in 2036.
NASA estimates that the impact from the asteroid named after Apophis and ancient Egyptian demon(魔鬼) would release more than 100,000 times the energy released in the nuclear explosion over Hiroshima. Thousands of square kilometers would be directly affected by the explosion. The whole planet would see the effects of the dust released into the atmosphere.
This is the worst possible scenario(情景) of any asteroid in recorded history.
Having more than 20 years’ warning of possible impact might seem plenty of time. But scientists insist that there is actually very little time left to decide.
Luckily, however, they aren’t short on ideas for deflecting the asteroid. The favored method is also probably the easiest—throwing a spacecraft at the asteroid to change its direction. The European Space Agency plans to test this in the next decade.
One idea that seems to have no support from astronomers is the use of explosive, although this sounds more likely to the public or Hollywood producer.
At present, scientists are trying to make a better estimate of how much time we have, through more observations.
In spring of next year, there will be another chance for radar observation of Apophis. This will help astronomers calculate the orbits of the asteroid more accurately.
If, at that stage, they can’t rule out an impact with the earth in 2036, the next chance to make better observations will not be until 2016, then 2029.
“If we wait until 2029 and the worst—case scenario turns out to be true, it would seem unlikely that we’d be able to do anything about 2036,” warns Prof Fitzsimmons.
小题1:What does the underlined word “deflecting” most probably mean?
| A．making it smaller. |
| B．observing it clearly enough. |
| C．dividing into pieces. |
| D．changing its direction. |
| A．the asteroid named Apophis will explode in 2036. |
| B．the asteroid named Apophis might hit the earth in 2036. |
| C．the asteroid named Apophis is 24 years old. |
| D．there is plenty of time to decide the way we deal with the asteroid. |
| A．It will damage Hiroshima. |
| B．Thousands of square kilometers would see the effects of the dust released into the atmosphere. |
| C．It might be the worst damage caused by asteroids in recorded history. |
| D．The whole planet would be directly affected by the explosion. |
| A．Hollywood producers will explode Apophis to avoid its hit. |
| B．There are only two chances for scientists to make better observations if they can’t grasp the chance next year. |
| C．NASA plans to throw a spacecraft at Apophis to change its direction. |
| D．It is supportive from astronauts that we explode the Apophis. |
答案
小题2:B
小题3:C
小题4:B
解析
小题1:D 此题属于词义猜测题。根据下文的“change its direction”可知选项D正确。
小题2:B 根据短文第一段第一句“Scientists are worried that an asteroid (小行星) will possibly hit the earth in 2036.”可知选项B正确。
小题3:C 根据第四段 “This is the worst possible scenario(情景) of any asteroid in recorded history.”可知选项C为最佳答案。
小题4:B 细节理解题。根据短文倒数第二段中的“the next chance to make better observations will not be until 2016, then 2029.”可知选项B正确。
核心考点
试题【Scientists are worried that an asteroid(小行星) will possibly hit the earth in 2036】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
If the federal government makes it legally necessary to disclose this information in a clear and consistent（一贯的）way, as it should, families will be better able to make informed college choices． And this will help put pressure on colleges that perform poorly to improve．
Critics may regard this initiative as an example of government overreach． But given that the federal government spends nearly $190 billion a year on higher education aid to students, it has a legitimate interest in making sure that the money flows to the schools that best meet their responsibilities to families and students．
Congress has taken some steps to require greater transparency（透明）from colleges． The 1990 Student Right to Know Act, for example, required colleges and universities that receive federal aid to disclose graduation rates． And the 2008 Higher Education Opportunity Act required schools to offer a way for consumers to determine actual costs after student aid is taken into account．
But many colleges have done a poor job of obeying federal disclosure rules, and much of the available information is not in one place． The administration’s new efforts would enforce reporting requirements and provide some new tools．
President Obama wants to expand campus-based aid to about $10 billion from the current $2．7 billion． He has proposed moving money away from colleges that fail to control tuition increases or provide good value to others that do a better job． That is a worthy idea in principle, but he will need strong data-based evidence to determine how colleges are doing．
The transparency initiatives are a good place to start and should be embraced by both parties in Congress． If students and families, facing higher tuition and rising debt, are to make sound choices, they need more and better information．
小题1:Why did the Obama administration start the initiative last fall?
| A．To require colleges to make their graduation rates known to the public． |
| B．To help colleges perform better in the future． |
| C．To help parents and students make better choices of colleges． |
| D．To put more pressure on colleges that are not doing well enough． |
| A．Critics agree that the government should require colleges to obey the disclosure rules． |
| B．Congress has approved and made the transparency initiatives a law． |
| C．SAT scores alone do not determine one’s choice of college． |
| D．Students and families find it very difficult to choose their ideal colleges now． |
| A．Congress To Require Greater Transparency |
| B．What College Parents and Students Need to Know |
| C．What a Good College Is Measured By |
| D．Parents and Students Need to Make Wise Choices |
| A．supportive | B．critical | C．indifferent | D．not stated |
One basic kind of mum is the garden mum. The other basic kind is the florist mum. The garden mum is better able to handle different growing conditions.
There are many varieties of mums. The decorative mum is often seen in gardens. Another popular type, the quill mum, has long, straight petals（花瓣）like a tube or needle.
Chrysanthemum blooms can be white, yellow, gold, red or other colors. The plants often grow one meter high.
The soil for chrysanthemums should be kept moist but well drained so it does not get too wet.
Newly-planted mums should be watered two or three times a week, depending on conditions. Plants established in the ground may do well just with normal rainfall.
Mums grow best in full sunshine. They produce colorful blooms when days get shorter and nights get longer. The life cycle of the plant depends on the amount of daylight. This is why experts advise against placing mums near night lights or street lights. The light may interfere with their normal growth cycle. The plants may develop buds too soon.
In climates where temperatures fall below freezing, plant mums at least six weeks before the first frost. That way, the plants will be well established for cold weather.
Some gardeners say the most beautiful presentation comes from planting mums close together. But be sure to leave enough space to let air flow between the plants. If not, there may be a greater chance of disease.
To get more blooms, gardeners pinch（掐）back the branches when new growth has reached fifteen centimeters. Squeeze about five to seven centimeters off each branch. Pinch it again when a branch grows another twelve to fifteen centimeters. Stop the pinching about one hundred days before you want the plants to bloom.
小题1: What has a great effect on the life cycle of the mum?
| A．The conditions of the soil. | B．The amount of daylight. |
| C．The amount of rainfall. | D．Cold weather. |
| A．To make mums grow thick. | B．To get more blooms. |
| C．To prevent mums from falling ill. | D．To let air flow between the plants. |
| A．Growing mums has a very long history and all the people in the world like making tea with mums. |
| B．Mums can grow one meter high and the closer they are planted, the higher they grow. |
| C．Though planting mums close together can make them look more beautiful, enough space should be left. |
| D．The petals of mums are long and straight and the more water mums get, the more quickly they grow. |
The following are taken from these books. You will find much more information about these hotels in the books.
Kakslauttanen Hotel
It is the home of the famous Igloo（冰屋）Village with the unique glass and snow igloos and the world’s largest snow restaurant. In addition , their guests can enjoy the winter activities including watching the Northern Lights visible generally from late August to late April. Guests can sample the peace of sleeping in snow. Their glass igloos are fantastic for lying on your bed at night, watching the Northern Lights in the warm. You can enjoy cold or warm night sleep as required.
Art Hotel in Ronda
Beautifully situated in the oldest paved street of Ronda and surrounded by historic buildings, Art Hotel is decorated with original and historical artwork and atmospheric lighting. There is lots of fun and funky touches, e. g. lights and birds nesting in old basketballs, wall murals（壁画）of Michael Jackson , car tyres converted to occasional tables.
During your stay, all drinks, breakfast and the use of all facilities are included in the price of the room.
Otter Creek Tents
The tents are separated from the rest of the world by a quiet salt-water creek. A coconut plantation dating back to 1886, the secret location preserves the privacy and peace of guests, with the salt water of the creek keeping even the mosquitoes away.
Each tent sleeps 2 in a four-poster double bed and has a western style toilet and bathroom with running water and hot shower. The tents use the dining facilities of the charming “Elsewhere” beach houses and enjoy over a mile of the pristine（处于原始状态的）beach where one can still see the footprints of fishermen , and during the season , possibly the prints of sea turtles.
The Original Icehotel
“Imagine a hotel built from thousands of tons of snow and ice, and rebuilt every winter”--that is ICEHOTEL in northern Lapland, Sweden.
This is the original ICEHOTEL, first created in the early 1990s. It has become the global ambassador for this genre and now licenses ICEBARs around the world too. With 80 ＋ rooms, the property is a huge undertaking to be rebuilt every year, and their expertise inspired other similar properties in North America and elsewhere.
小题1:People staying in Kakslauttanen Hotel can watch the Northern Lights EXCEPT in ________.
| A．August | B．April | C．December | D．June |
| A．You can sleep in a house made of ice there. |
| B．It is surrounded by a forest. |
| C．You can enjoy the scenes of a beach. |
| D．You can enjoy turtles cooked in a special way there. |
| A．Kakslauttanen Hotel and Art Hotel in Ronda |
| B．Otter Creek Tents and Icehotel |
| C．Art Hotel in Ronda and Otter Creek Tents |
| D．Kakslauttanen Hotel and Icehotel |
| A．To show us the advantages of staying in hotels. |
| B．To introduce and promote some books. |
| C．To encourage people to travel around the world. |
| D．To explain to us how people manage the hotels. |
Natural leaves are able to change sunlight and water into energy. It is known as photosynthesis (光合作用). Now researchers have found a way to imitate this seemingly simple process.
The artificial leaf developed by Daniel Nocera and his colleagues at MIT can be seen as a special silicon chip (硅片) with catalysts (催化剂). Similar to natural leaves, it can split water into hydrogen and oxygen when put into a bucket of water. The hydrogen and oxygen gases are then stored in a fuel cell (电池), which uses those two materials to produce electricity, located either on top of a house or beside the house.
Though the leaf is only about the shape of a poker card, scientists claimed that it is promising to be an inexpensive source of electricity in developing countries. “One can imagine villages in India and Africa not long from now purchasing an affordable basic power system based on this technology,” said Docera at a conference of the American Chemical Society.
An artificial leaf is not a new idea. The first artificial leaf was invented in 1997 but was too expensive and unstable for practical use. The new leaf, by contrast, is made of cheap materials, easy to use and highly stable. In laboratory studies, Nocera showed that an artificial leaf prorotype (原型) could operate continuously for at least 45 hours without a drop in activity.
The wonderful improvements come from Nocera’s recent discovery of several powerful new, inexpensive catalysts. These catalysts make the energy transformation (转换) inside the leaf more efficient with water and sunlight. Right now, the new leaf is about 10 times more efficient at carrying out photosynthesis than a natural one. Besides, the device can run in whatever water is available; that is, it doesn’t need pure water. This is important for some countries that don’t have access to pure water.
With the goal to “make each home its own power station” and “giving energy to the poor”, scientists believe that the new application could be widely used in developing countries, especially in India and rural China.
小题1:Which of the following order correctly shows how the artificial leaf is used to produce electricity?
a. artificial leaves split water into hydrogen and oxygen
b. the hydrogen and oxygen gases are stored in a fuel cell
c. the artificial leaves are put in water
d. the fuel cell uses hydrogen and oxygen to produce electricity
| A．cbad | B．cabd | C．bcad | D．cadb |
| A．They are inexpensive but unstable. |
| B．They are as efficient at carrying out photosynthesis as natural leaves. |
| C．They can work only in pure water. |
| D．They need several catalysts to help them work efficiently. |
| A．build-up more power stations in the world |
| B．provide cheaper energy for developing countries |
| C．offer people in developing countries access to pure water |
| D．gain a deeper understanding of the photosynthesis process |
| A．Introduction to the history of artificial leaves. |
| B．An invention copying photosynthesis. |
| C．Giving energy to the poor. |
| D．A mixture of water power and solar energy. |
The psychologist Jean Piaget (1896-1980) has been credited with making a major breakthrough in this area when he put forward his idea that children were not actually less intelligent than adults, rather they just thought in a different way. Preciously the development of children right from birth through to adulthood was an area that was almost completely neglected. In fact very little work was done in this area. However, interest in this field has now developed to the point of being one of the most debated of all the areas of psychology.
Despite popular belief that factors such as genetics or personal characteristics are the only determining factors that influence a youth’s behavior, this is not in fact the case. In reality, development actually includes many more factors than those contained within an individual. Factors such as environment, which can include social relationships and the surrounding culture, also play important roles. Relationships with both peers and adults will no doubt affect how children think and learn, and therefore develop. These relationships can include those that are found not only within families but also in schools and peer groups.
Culturally speaking, this factor will contribute greatly to how children develop their personality concerning the values they end up holding (perhaps for a lifetime) as well as how they view such things as traditions and customs.
Nowadays, psychologists have agreed that a child’s psychology is both unique and highly complex. However, there are debates on many different points in this field and many viewpoints exist.
小题1:The word “neglected” underlined in Paragraph 2 can be replaced by “______”.
| A．ignored | B．destroyed | C．developed | D．explored |
| A．Popular belief about child psychology. |
| B．The role families play in a child’s development. |
| C．Factors that affect a child’s development. |
| D．The importance of relationships to a child. |
| A．introduce an important psychologist. |
| B．give a brief introduction to child psychology. |
| C．compare some of the areas of psychology. |
| D．explain the development in psychology. |
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