(届河北省衡水中学高三第一次模拟考试英语试卷)
What will power your house in the future?Nuclear,wind,or solar power?According to scientists at the Massachusetts Institute of Technology (MIT) in the US,it might be leaves — but artificial (人造的) ones.
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 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,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 Nocera at a conference of the American Chemical Society.
The 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 prototype (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 and inexpensive catalysts. These catalysts make the energy transformation 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 “give energy to the poor”,scientists believe that the new technology could be widely used in developing countries,especially in India and rural China.Which of the following orders 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.c,a,b,d | B.c,b,a,d |
C.b,c,a,d | D.c,a,d,b |
The purpose of the scientists at MIT in developing the new artificial leaf is to________.
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 |
The main idea of this passage is ________.
A.an introduction to the history of artificial leaves |
B.a mixture of water power and solar energy |
C.giving energy to the poor |
D.an invention copying photosynthesis |
Most earthquakes occur within the upper 15 miles of the earth’s surface, but earthquakes can and do occur at all depths to about 460 miles. Their number decreases as the depth increases. At about 460 miles one earthquake occurs only every few years. Near the surface earthquakes may run as high as 100 in a month, but the yearly average does not vary much.
The extent of the disaster in an earthquake depends on many factors. If you carefully build a toy house with an erect set (坚立架), it will still stand no matter how much you shake the table. But if you build a toy house with a pack of cards, a slight shake of the table will make it fall. An earthquake in Agadir was not strong, but it completely destroyed the city. Many stronger earthquakes have done comparatively little damage. If a building is well constructed and built on solid ground, it will resist an earthquake. Most deaths in earthquakes have been due to faulty building construction or poor building sites. A third and very serious factor is panic. When people rush out into narrow streets, more deaths will result.
There is one type of earthquake disaster that little can be done about. This is the disaster caused by seismic (地震的) sea waves, or tsunamis (海啸). These are often called tidal waves, but the name is incorrect. They had nothing to do with tides. In certain areas, earthquakes take place beneath the sea. These submarine earthquakes sometimes give rise to seismic sea waves. The waves are not noticeable out at sea because of their long wave length. But when they roll into harbors, they pile up into walls of water 6 to 60 feet high. The Japanese call them “tsunamis” meaning “harbor waves”, because they reach a sizable (相当大的) height only in harbors.
Tsunamis travel fairly slowly, at speeds up to 500 miles an hour. An earthquake warning system is in use to warn all shores likely to be reached by the waves. But this only enables people to leave the threatened shores for higher ground: There is no way to stop the oncoming wave. Which of the following can NOT be concluded from the passage?
A.The number of earthquakes is closely related to the depth. |
B.Roughly the same number of earthquakes occur each year. |
C.Earthquakes are impossible at depths over 460 miles. |
D.Earthquakes are most likely to occur near the surface. |
The destruction of Agadir is an example of .
A.faulty building construction |
B.an earthquake’s strength |
C.widespread panic in earthquakes |
D.ineffective instruments |
According to the passage, the waves caused by submarine earthquakes are not noticeable out at sea because of .
A.their high speed |
B.the wide shores |
C.their silent movements |
D.their long wave length |
The significance of the slow speed of tsunamis is that people may .
A.help reduce fear |
B.find ways to stop them |
C.be warned early enough |
D.develop warning systems |
According to the passage, the number of factors that may determine the extent of the disaster in an earthquake is .
A.two | B.five | C.four | D.three |
12-year-old John Thomas Robertson is a born train fan. "I’ve liked trains probably from the day I was born," he told Good Morning America. "When I was very little," he said, "my grandpa got me a train model. I would just watch it go round for hours and hours."
When Robertson finally had the opportunity to ride on a train, he felt great. His journey was so mind-blowing that he couldn’t keep it to himself: he decided to take all his classmates to go on a ride with him. When he found that some of his classmates couldn’t pay the fare, he collected cans (罐子) and bottles and raised more than $1,000 for them.
That trip was such a happy one that he made it a yearly action. "It never gets boring for some reason; it’s just fun," he said. "It really lets people get away from their busy life and have fun.
Every October, Robertson takes a new group of children to ride on the train —but now, he has a problem. Several disabled children were refused because the train was not accessible (可用的) to disabled people. "He was angry to think that children of his own age couldn’t ride a train," his mother said.
But he wouldn’t say no: he recently sent a letter to the train office for help. To his surprise, the leader, Ty Pennington, accepted the letter in person. He said that he and his workers would work on making a train accessible to disabled people. The first time John Thomas Robertson took a train, ________.
A.he was frightened by it |
B.he acted as a driver |
C.he watched it for hours |
D.he fell in love with it |
The author says John Thomas Robertson is a born train fan, because he ________.
A.was greatly attracted to trains since early childhood |
B.said so in Good Morning America |
C.took a group of disabled children to travel by train |
D.was taken to a train the day he was born |
The underlined words "mind-blowing" can be replaced by ________.
A.important | B.terrible | C.amazing | D.disappointing |
The disabled children were refused to get on the train because _________.
A.the trains then weren’t accessible to the disabled |
B.Robertson had not saved enough money for the tickets |
C.they couldn’t afford the train tickets |
D.the driver would not allow them to do so |
According to the last paragraph, we can see that Robertson is a ________ child.
A.helpful and crazy | B.kind and clever |
C.kind but boring | D.lazy but kind |
There are many international organizations which work to save and protect endangered species and natural environment. If you would like more information about any of the organizations listed blow, you can write to the addresses given.
Friends of the Earth (FOE) campaigns on a range of problems including rainforests, the countryside, water and air pollution and energy. Friends of the Earth International Secretariat P. O. Box 19199 1000 G. D. Amsterdam The Netherlands |
Greenpeace uses peaceful but direct action to defend the environment. It campaigns to protect rainforests and sea animals, stop global warming and end pollution of air, land and seas. It also opposes nuclear (核) power. Greenpeace International 1016 DW Amsterdam The Netherlands |
BirdLife international is an organization which works to save endangered birds all over the world BirdLife International Wellbrook Court Girton Road Cambridge CB3 ONA England |
WWF-World Wide Fund For Nature is the world’s largest private international organization for the protection of nature and endangered species. Information Officer WWF International Avenue du Mont-Blanc 1196 Gland Switzerland |
If you want to learn more about the organizations, you can .
A.call them | B.write them a letter |
C.visit them | D.send them an e-mail |
Which problem will be paid close attention to by FOE?
A.Overhunting ocean animals. |
B.Killing endangered birds. |
C.Heavy air pollution. |
D.Global warming. |
If you oppose nuclear power, you can join .
A.Friends of the Earth |
B.World Wide Fund For Nature |
C.BirdLife International |
D.Greenpeace |
What can we learn about WWF?
A.It helps to protect nature and save endangered animals. |
B.It is the world’s largest international organization. |
C.It works for private companies and rich people. |
D.It is a private organization in the United States. |
Which is the best title for the passage?
A.Endangered animals |
B.Global traffic problems |
C.Environmental protection organizations |
D.Natural beauty |
Are you stuck in a rut(车辙)and looking for a change? Fed up of seeing hungry, poor faces on your TV screen and want to do something to help? Perhaps you’ve considered volunteering overseas but ruled it out because you thought you were too old, couldn’t commit enough time, or have a family. If so, think again.
“Over the past five years it has become far safer --- and more professionally acceptable --- to take up a job volunteering overseas,” says David Stitt, managing director of Gap Year for Grown Ups, a company catering for volunteers in their late 20s and upwards. “While 10 years ago intrepid souls took financial and personal risks in volunteering abroad, now several organizations exist to make the experience safe and well-organized.
Nowadays, universities and business encourage overseas volunteering among students and employees. Entire families can volunteer abroad, and agencies are employing more disabled and retired people. A prosperous “humanitarian tourism” industry has sprung up; thousands of UK citizens will do some form of overseas volunteering this year.
“Some volunteering jobs are easier to find than others,” explains Kevin Cusack, from a volunteer advice agency. “If you can speak English, it’s not too hard to land a job teaching English, even without a qualification, and those who enjoy working with children should be able to find child care work.”
Whether your interest is rainforests or women’s rights, you can find a volunteer position to suit you. But be warned: unless you have relevant skills or existing overseas development experience, it’s going to cost. Just how much depends on the location and length of the position, but you should budget for somewhere between £1,500 and £6,000.
“Having to pay to volunteer may sound paradoxical (矛盾的), but it’s the best way to ensure you get a position that benefits the local community while matching your interests and skills,” explains Cusack. “You can also discuss the time you want to commit to a project --- many positions can fit into a holiday or even a weekend.”The underlined words “intrepid souls” in Paragraph 2 most probably refers to ___________.
A.companies | B.volunteers | C.fighters | D.students |
In Kevin Cusack’s opinion, paying to volunteer overseas ___________.
A.must be incredible and unrealistic |
B.can help volunteers learn more about another culture |
C.may benefit both volunteers and the community they work in |
D.needs confidence, courage and determination |
What can we learn from the text?
A.Disabled people can also take up a job volunteering overseas. |
B.In the past no one could take up a job volunteering overseas. |
C.“Humanitarian tourism” industry is in its beginning stage. |
D.Taking up a job volunteering overseas needs at least £1,500. |
Where can we most probably read this article?
A.In a job guidebook. |
B.In a celebrity biography. |
C.In a guidebook to work overseas. |
D.In a report on volunteer work. |
What is the writer’s attitude towards volunteer work?
A.Critical. | B.Unfavorable. | C.Supportive. | D.Disagreeable. |
I recently ran into a friend I hadn’t seen for a long while.Our conversation was lively and full of news from both sides.Before we parted she said,“You'll have to drop in sometime.” I immediately sensed that if I simply “dropped in’’ I would take my friend by surprise,and I would be discouraged by the image of her standing in her doorway,staring at me,and asking,“Oh,err …what brings you here?”
Whatever happened to the unannounced drop-in visit? When I was growing up in the 1960s, it seemed that people - mostly relatives, but also friends - were always popping in. My parents would put coffee on,and my mom would find something in the kitchen to serve along with it.Then the conversation would begin…The neighbor lady,a worrier,was unloading her sadness while my mom quietly listened.The Irish man next door had such an accent that I remember asking what language he spoke.My Polish relatives arrived in packs…But I never heard my parents say anything like “We weren’t expecting you’’ or “This isn’t a good time.”Drop-in visitors had a certain right of way and became No.1.
What happened to such visits? Actually I know the answer.Times have changed.Everybody gets busy with work.There is no longer a stay-at-home mom keeping a pot of hot coffee or tea ready throughout the day for a surprise guest.Exploding malls and stores are now replacing homes as a central form of entertainment.
Just the other day a former student of mine showed up.“I'm sorry for the surprise visit.”my student began.“I just wanted to see if you still lived here.I'll only stay a minute.”My response was immediate.“ No, you won’t,” I said.“Just come in, sit, have coffee, and we’ll talk.’’
I had nothing in the kitchen but we ordered pizza.And we had a lovely time.I have tried to keep the drop-in tradition alive though it takes some effort.The author thought of his friend’s invitation --- “You’ll have to drop in sometime”--- as _______.
A.a nice way of refusal |
B.an excuse of leaving |
C.a kind of politeness |
D.an expression of surprise |
The underlined phrase “ pop in” in the second paragraph means _________.
A.make many friends |
B.make a special date |
C.have a good time |
D.pay a sudden visit |
The woman from the neighborhood used to visit the author’s home to ________.
A.seek comfort from my parents |
B.make new friends |
C.1isten to my parents’ story |
D.taste nice dishes |
From the third paragraph of the passage,we can infer that __________.
A.the author misses the lost good days |
B.unexpected visitors are still welcome now |
C.modern people prefer outdoor activities |
D.there are more jobs for the housewives now |
The author writes the passage intending to __________.
A.encourage people to be drop-in visitors |
B.explain how to deal with unexpected visitors |
C.share his feelings about the drop-in tradition |
D.show the importance of making friends |