题目
题型:不详难度:来源:
At the top of the South Pole,any clock or watch keeps good time because all meridians(子午线) join there.All kinds of local time are completely suitable there.It is even difficult to distinguish(区别) New Year’s Eve from New Year’s Day.
The explorers and scientists from different countries always fix the time according to their own.Therefore the time by their watches was different when the people with different nationality gathered there.
The Winter Solstice(冬至日) is an important festival at the South Pole.It is always on June 21 or 22.This day is called Midwinter Festival,on which the daytime is the shortest in a year and the night the longest.All people at the South Pole extend greetings to each other and present gifts to each other.They usually give all kinds of celebrations.From that day on,the daytime will get longer day by day.
小题1:At the top of the South Pole,your watch will ________.
A.keep good time | B.be five minutes fast |
C.stop | D.be ten minutes slow |
A.in the world | B.at the South Pole | C.at the North Pole | D.in China |
A.the night | B.the noon | C.the morning | D.the daytime |
答案
小题1:A
小题2:B
小题3:D
解析
小题1:根据“At the top of the South Pole,any clock or watch keeps good time because all meridians(子午线) join there.”可知。
小题2:本文最后一段介绍在南极,冬至日是最重要的节日。
小题3:细节理解题。在Winter Solstice这一天,白天最短,黑夜最长。
核心考点
试题【The South Pole is a particular place on the earth.When people stand at the top o】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Whatever the cause of the heat may be,we do know that the earth gets hotter the farther down we dig.In deep mines and oil wells the temperatures rise about 1°F for every 50 feet.At this rate of the temperature 40 miles below the earth’s surface should be over 4 000°.This is much hotter than necessary to melt rock.However,the pressure of the rock above keeps most materials from melting at their usual melting points.Geologists believe that the rock deep in the earth may be plastic,or puttylike(油灰状的).In other words,the rock yields slowly to pressure but is not liquid.But if some change in the earth’s crust releases the pressure,the rock melts.Then the hot,liquid rock can move up toward the surface.
小题1:The cause for the great heat inside of the earth is______.
A.great pressure of the earth’s outer layers |
B.the heat left from the time when the earth was formed |
C.radioactive elements giving out heat |
D.not sure |
A.the pressure of the rock itself |
B.the pressure of the rock above |
C.the pressure of the earth’s outer layers |
D.the heat given out by some radioactive elements |
A.The farther down,the hotter the earth gets. |
B.The rock deep in the earth is liquid. |
C.When the pressure releases from the earth’s crust,the rock melts. |
D.Rock would be melted at 4 000°. |
On September 29,1998,Hurricane Georges made landfall in Biloxi,Mississippi,after devastating Haiti,the Dominican Republic,Puerto Rico,and several islands of the Caribbean with torrential rains and winds up to 160 km/h (100 mph).Few people lost their lives along the Gulf Coast of the United States,although hundreds died in the Caribbean.
This was a very different outcome from 1900,when a powerful Gulf Coast hurricane made an unexpected direct hit on Galveston,Texas,killing at least 6 000 people.Vastly improved hurricane warnings explain the different circumstances at either end of the 20th century—residents of Galveston had no advance warning that a storm was approaching,while residents of Biloxi had been warned days in advance of Georges’s approach,allowing for extensive safety precautions.
At the same time that people in Biloxi were thankful for the advance warning,some residents of New Orleans,Louisiana,120 km to the west,were less satisfied.A day before Georges made landfall,forecasters were predicting that the hurricane had a good chance of striking New Orleans.Because much of New Orleans lies below sea level,the city is at risk for flooding.In addition,because New Orleans has a large population in vulnerable locations,emergency management officials must begin evacuations well before a storm strikes.But evacuation costs money:Businesses close,tourists leave,and citizens take precautionary measures.The mayor of New Orleans estimated that his city’s preparations for Georges cost more than 50 million.After the full fury of Georges missed New Orleans,some residents questioned the value of the hurricane forecasts in the face of such high costs.
The differing views on the early warnings for Hurricane Georges illustrate some of the complexities involved in predicting disasters.Disaster prediction is more than just forecasting the future with advanced technology—it is also a process of providing scientific information to the government officials and other decision makers who must respond to those predictions.
In general,the process has three phases.First,there is the challenge of forecasting the event itself.In the case of Georges,scientists worked to predict the future direction and strength of the hurricane days in advance.
A second important challenge is communicating the forecast to decision-makers.Because forecasts are always uncertain,a central factor in disaster predictions is communicating this uncertainty.Uncertainty is usually described in terms of odds or probabilities,much like daily weather forecasts.The media plays an important role in communicating predictions and their uncertainty to the public.
The third part of the process is the use of predictive information by decision makers.Even the most accurate information is of little value if the decision maker does not use it appropriately,for example in deciding whether to order an evacuation.If there is a breakdown in any of these three phases of prediction,the result is increased danger and a higher risk of loss of life.
小题1:The underlined word“calamity”refers to ______.
A.nature | B.thunderstorms | C.disaster | D.dangers |
A.demonstrate the power of advanced technology |
B.bring out the truth between life and death |
C.prevent such natural disasters from happening |
D.reduce human casualties and loss of property |
A.Biloxi,Mississippi. | B.Gulf Coast of U. S. |
C.Galveston,Texas. | D.New Orleans. |
The Great Wall is actually a series of walls built and rebuilt by different dynasties over the past 2 000 years.It began in the rule of China’s first emperor,Qin Shihuang of the Qin Dynasty (221 BC~206 BC),and lasted into the Ming Dynasty.The parts built before the Ming Dynasty have nearly disappeared.People are familiar with sections such as Badaling in Beijing and Jiayuguan Pass in Gansu because they have been open to tourists for many years.But those sections far away from the public eyes have been almost forgotten.
Few local people knew the 3-meter-high walls made of earth and stones beside them are part of the Great Wall.The lack of knowledge is considered as one of the main reasons behind human.
The bricks on the Great Wall are carried off by countryside people to build their houses,sheep corral(畜栏) and pigsties(猪圈).Some were taken away to build roads.Bricks carved with people’s names are put away as remembrance.Rubbish is spread over the battlements(城垛).The bricks can be sold for 15 yuan per tractor load.Those who destroyed and are destroying the Great Wall know its name,but are not clear about its cultural meaning.It will take a long time to let them know this.The local farmers not only carried off the body of the Wall but dug out the entire base.
It is necessary to protect the Great Wall.First of all,the officials should be aware of theimportance of the Great Wall.Young Chinese should know more about the nation’s great civilization (文明)and learn to love it.
小题1:The main reason for which the Great Wall can be called“great”is__________.
A.it was made by brick | B.it was very wide |
C.it was very long | D.it had a long history |
A.It is useless from now on. | B.It will be replaced by a new one. |
C.Some parts of it are being destroyed. | D.It’s too old to be used again. |
A.that are too difficult to understand | B.nobody can watch |
C.that are too far to been seen | D.that are not well known to the public |
A.The local people are short of culture knowledge. |
B.The local people need bricks and stones to build houses. |
C.The local people think that the Great Wall is not important. |
D.The local people are against the government. |
NASA officials delayed Discovery"s return for one day because of cloudy weather in Florida,where the shuttle was supposed to lanD. On Tuesday morning,mission controllers directed Discovery to a landing site in California,where the skies were clear.The crew members will have to wait until Wednesday to see their families when they all meet together in Houston at the Johnson Space Center.
Discovery had a very busy mission in space,compared to past missions.The space shuttle docked with the International Space Station most of the journey,delivering badly needed supplies and repairing damaged parts.The crew spent a lot of time testing new repair techniques on their own shuttle,conducting three different spacewalks(where astronauts exit the space shuttle to do work outside).On the third spacewalk,astronaut Steve Robinson went underneath the shuttle to remove material sticking out from between the spacecraft"s protective tiles.
There were concerns in the last remaining days of Discovery"s mission that a torn heat blanket—another shield against overheating in the space shuttle—may pose a problem to crew members. NASA officials and technicians worked on ways that the crew could fix the problem, but later decided it was not a risk.
With the shuttle and its crew safely back on firm ground, NASA is hailing this mission, labeled STS114,as a huge success. “I hope this shows people that we"re coming back,” NASA spaceflight chief Bill Readdy said after Discovery"s successful landing. “We"ve got some more work to do. We know what we need to do and we"ll do it.
小题1:Which of the following isn"t included in the jobs of the shuttle Discovery?
A.Delivering supplies to the International Space Station. |
B.Conducting different spacewalks. |
C.Testing new repair techniques. |
D.Finding the cause why the shuttle Columbia came apart. |
A.in Florida a day earlier | B.in Florida a day later |
C.in California a day earlier | D.in California a day later |
A.Six days. | B.Two weeks. |
C.Nine days. | D.Two weeks and an extra day. |
A.Another Huge Success of Discovery |
B.Welcome Back, Discovery |
C.Discovery and International Space Station |
D.Discovery Survives a Risk |
There was great excitement on the planet of Venus(金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
The satellite was directed into an area known as Manhattan (named after the great Venusian astronomer Prof. Manhattan, who first discovered it with his telescope 20 000 light years ago).Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information as to feasibility(可行性) of a manned flying saucer(飞碟) landing on Earth.A press conference was held at the Venus Institute of Technology.
“We have come to the conclusion,based on last week"s satellite landing,” Pro. Zog said,“that there is no life on the Earth.”
“How do you know this?” the science reporter of the Venus Evening Star asked.
“For one thing, Earth"s surface in the area of Manhattan is composed of solid concrete(混凝土)and nothing can grow there. For another, the atmosphere is filled with carbon monoxide(一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive.”
“What does this mean as far as our flying saucer program is concerned?”
“We shall have to take our own oxygen with us, which means a much heavier flying saucer than we originally planned. ”
“Are there any other hazards that you discovered in your studies?”
“Take a look at this photo. You see this dark cloud floating over the surface of Earth? We call this the Consolidated Edison Belt. We don"t know what it is made of, but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there.”
“If what you say is true, won"t this set back the flying saucer program several years?”
“Yes, but we shall proceed as soon as the Grubstart gives us the added funds.”
“Prof. Zog, why are we spending billions and billions of zilches to land a flying saucer on Earth when there is no life there?”
“Because if we Venusians can learn to breathe in an Earth atmosphere, then we can live anywhere.”
小题1:During the week of great excitement the Venusian scientists succeeded in getting important information on whether they can_______.
A.land a satellite with Venus astronauts on Earth |
B.make a firstrate flying saucer |
C.get a Earth Being to Venus |
D.direct a flying saucer into Manhattan |
A.they need it on their way to the planet of Earth |
B.the Earth"s atmosphere is filled with deadly gases |
C.oxygen is far from enough in the area of Manhattan where the saucer is to land |
D.there is no air on the planet of Earth |
A.the polluted air floating over the surface of Earth |
B.the mass of tiny drops of water floating above Earth |
C.the things that are unknown to everybody |
D.the dark clouds gathering before a storm breaks |
A.that modern man has polluted his environment to such an extent that he might destroy himself if he went on like this |
B.that there is no point in spending billions and billions of zilches to land a flying saucer on Earth |
C.that pollution has become so serious a problem on Earth that even Venusians find life there unbearable |
D.that it is difficult, if not altogether impossible, to land a manned flying saucer on Earth |
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