【题目】The cultural background of China is totally different from ________ of the US．
A．one B．that C．these D．those
科目：高中英语 来源： 题型：
【题目】From our smartphones to our latest weaponry, the technology that underpins（支撑） modern life would be impossible without rare earth metals． The importance of rare earths has only grown as emerging markets increase their demand for technologies made with it, as does the renewable energy industry．
The 17 metallic elements are common in the earth-s crust, but the technique used to extract and refine them is labor-intensive, environmentally hazardous and increasingly costly． Thomas Gradael, a professor of geology and geophysics at the Yale School of Forestry Environmental Studies, explains that the钰criticality" of rare earths was only recently understood after China, which dominates the world-s supply of the minerals, cut exports by 40% in 2010, citing concerns over how polluting the rare earth industry was．
Along with colleagues at Yale, Gradael decided to investigate the metals used in modern technologies to determine if there were viable（可行的） substitutes．“Twenty or thirty years ago electronics were being made with 11 different elements," explains Gradael． “Today's computers and smartphones use something like 63 different elements．" Their findings showed that there were no "readily apparent" substitutes for a metal that would not compromise on quality or performance．
However increased mining for these scarce resources can have some nasty side effects for the environment． China, which has intensively mined for rare earths with little regulation, allowing it to dominate the global industry since 1990, has acknowledged the incredible environmental harm caused by the process． “Excessive rare earth mining has resulted in landslides, clogged rivers, environmental pollution emergencie and even major accidents and disasters, causing great damage to people's safety and health and the ecological environment," read a white paper issued by the Chinese cabinet in June last year．
Recycling metal has been advocated by some as a possible way of managing these precious resources-the European Parliament adopted a law curbing dumping of electric waste in 2012． But Gradael says that for rare earths, recycling will have little impact．
【1】Rare earths are growingly important in that
A． they exist in small numbers
B． they are essential in modern technologies
C． life would be impossible without them
D． new technology markets are emerging
【2】Which one of the following can be used in the blank?
A． It is in China that rare earths are fully understood．
B． Despite the name, rare earth metals are not in fact rare．
C． There is a growing concern over the rare earth industry．
D． Rare earth metals are difficult to collect though important．
【3】Gradael investigated the use of rare earths in modern technologies to ．
A． prove the important role rare earths play
B． learn the number of different elements used
C． determine whether there are substitutes for rare earths
D． research further the quality or performance of rare earths
【4】 Why does the author take China as an example in Para．4?
A． To tell the wide use of rare earth in China．
B． To prove the side effects of rare earth mining．
C． To warn people of the possible damage．
D． To teach other countries a lesson to follow．
【5】The text may probably be
A． the reasons why recycling works little
B． the ways to manage rare earths
C． the effects brought about by rare earths
D． the attitudes people hold to the law
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科目：高中英语 来源： 题型：
【题目】根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为
选项。
【1】They provide him wood and other products; they give him shade;and they help to prevent drought and floods.
【2】 In his eagerness to draw quick profit from the trees, he has cut them down in large numbers.
Two thousand years ago, a rich and powerful country cut down its trees to build warships, with which to gain itself an empire. It gained the empire but, without its trees, its soil became bare and poor. When the empire fell to pieces, the country found itself faced by floods and starvation.
Even where a government realizes the importance of a plentiful supply of trees, it is difficult sometimes to make the people realize this. 【3】 So unless the government has a good system of control, or can educate the people, the forests slowly disappear.
【4】 The results are even more serious: for where there are trees, their roots break the soil up, allowing the rain to sink in, and also hold the soil. 【5】 But where there are no trees, the rainfalls on hard ground and flows away on the surface, and this causes floods and the rain carries away the rich topsoil in which crops grow. When all the topsoil is gone, nothing remains but worthless desert．
A. This does not only mean that there will be fewer trees.
B. However, a lot of trees are being cut down.
C. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.
D. This prevents the soil from being washed away.
E. If there were no more trees, something terrible would happen.
F. Trees are useful to man in three very important ways.
G. They cut down the trees but are too careless to plant and look after new trees.
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科目：高中英语 来源： 题型：
【题目】__________ his father is? I don't know why he always wears the uniform.
A. What do you think B. You think what
C. What you think D. What did you think that
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科目：高中英语 来源： 题型：
【题目】It is difficult for any of us to eat better, exercise more, and sleep enough, ______ we know we should.
A. because B. even if
C. unless D. before
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科目：高中英语 来源： 题型：
【题目】Betty shows great interest in this poem now, but she thought it boring __________ she read it.
A. at the first time B. the first time
C. for the first time D. at first
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科目：高中英语 来源： 题型：
【题目】Scientists in the United States have developed a method that may help to predict earthquakes earlier. They say it could give people who live in deadly earthquake areas enough warning to leave before an earthquake hits.
Currently, the most modem systems for predicting earthquakes find them only a short time before the event. Like most strong earthquakes , the one that hit Southwestern China in May was not identified early enough for people to flee the area. That earthquake killed more than 69,000 people, which rated eight point zero in intensity.
But scientists who study earthquakes are reporting that new technology could measure very small changes in the Earth's surface. Their report was published this month in Nature magazine.
Fenglin Niu is a seismologist in Rice University in Houston, Texas. He and his team performed experiments along California's San Andreas Fault, an area famous for its many earthquakes. The team placed highly sensitive electrical devices about one kilometer below ground in two different places. The devices were able to measure even small changes in air pressure on the Earth's surface. The scientist says such changes are caused when rocks push together, forcing air out of small cracks in the rock. When this happens, seismic waves travel faster than usual through the rock.
The experiment was performed near Parkfield，California. Two earthquakes hit the area in late 2005. The first took place on December 25. A smaller earthquake struck five days later. The scientists noted changes in the Earth's surface about ten hours before the first earthquake struck. That earthquake rated three in intensity. They then found similar changes taking place two hours before the other earthquake struck five days later.
If additional tests confirm the changes are linked to earthquakes ，the scientists believe that their equipment could be used for early warning systems. A system that provides a warning signal ten hours before a major earthquake could help move people from the area and save lives.
The scientists now hope they can find earthquakes with even greater intensity by placing their equipment deeper in the ground.
【1】 What is the best title for the passage?
A. A new way to help predict earthquakes
B. The earthquake in Southwestern China
C. A better understanding of earthquakes
D. Early warning systems of earthquakes
【2】 If the new way works, ______ .
A. fewer earthquakes will break out
B. rescue workers can save more buried people in ruins
C. a warning can be given at least ten days before the major earthquake
D. fewer people will be killed in an earthquake
【3】 The devices can predict the earthquake by ______ .
A. reaching the center of the earthquake
B. detecting the temperature changes in the Earth's crust
C. measuring changes in air pressure on the Earth's surface
D. recording sound waves under the ground
【4】 We can infer that ______ .
A. the equipment is perfect enough to be used in practice
B. it is unknown if greater earthquakes can be predicted by the equipment
C. the deeper the equipment is placed, the less accurate the measurement is
D. the equipment has helped save many lives in the earthquake in Sichuan in May
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科目：高中英语 来源： 题型：
【题目】完成句子：（共10小题;每空0．5分,共10分）
【1】他们不太熟悉慈善工作，这在中国还处于初始阶段。
They are not _____________ __________ charity work, ___________ is still at an early stage in China．
【2】我们佩服这位老科学家对社会作出的巨大贡献。
We __________the old scientist ________ his great _______________ ___________the country．
【3】如果天气允许，晚会将在花园举行。
The party will be held in the garden, ___________ ___________．
【4】旅店良好的服务在某种程度上弥补了其食物差的不足。
The good service has ________ _____ _____ the poor food in the hotel _____ _____ _____．
【5】如果您能给我一些关于如何解决这些问题的建议我将不胜感激。
I would _____________ ______ if you can give me some ________ _____ how to_______the problem．
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科目：高中英语 来源： 题型：
【题目】His first novel __________ good reviews since it came out last month.
A. receives B. is receiving
C. will receive D. has received
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