While there is a slight chance that you touch...

While there is a slight chance that you touch down on the surface of the moon, there are some places you can visit that are tied to the Apollo 11.

The U.S. Space & Rocket Center; Huntsville, Alabama

Creating the Saturn V rocket that drove the crew of the Apollo 11 was the responsibility of a team of engineers in Huntsville. At the U.S. Space & Rocket Center, you can explore dozens of interactive exhibits, including “Space Craze “，a look at the public’s strong interest in all things related to space through the pop culture.

Meteor Crater, Flagstaff, Arizona

Armstrong and his fellow were trained for moon exploration at a variety of places, including Meteor Crater, one of the most perfectly preserved impact craters on the planet. Today the Meteor Crater Visitor Center includes the 4-D ride “Collision Experience” and breathtaking tours around the edge of the crater itself.

The Kennedy Space Center, Cape Canaveral, Florida

Every Apollo mission was started from the Kennedy Space Center, which remains an active launch site. Bus tours visit mission-critical areas of Kennedy Space Center and the Apollo/Saturn V Center, which houses a complete Saturn V rocket and a moon rock you can touch. Come during a scheduled launch, and you can purchase a special viewing package getting you a clear view of the launch.

Lyndon B. Johnson Space Center; Houston, Texas

It’s here that every aspect of the Apollo 11 mission was monitored. Now fully repaired, the control center is open to tour via the official visitor’s center. Space Center Houston. View astronaut training equipment and the largest collection of moon rocks.

1.In which place are you required to tour in a bus?

A.The U.S. Space & Rocket Center. B.Meteor Crater.

C.Lyndon B. Johnson Space Center. D.The Kennedy Space Center.

2.What can we learn about Meteor Crater?

A.It houses a complete Saturn V rocket and a moon rock.

B.It is one of the training places for astronauts of Apollo 11.

C.It allows one to view the largest collection of moon rocks.

D.It provides doze ns of interactive exhibits for visitors to explore.

3.What can you do in Lyndon B. Johnson Space Center?

A.Touch a moon rock. B.Enjoy the 4-D ride.

C.See astronaut training equipment. D.View a rocket launch.

高三英语阅读理解中等难度题查看答案及解析

There is one tip from the book that I do follow, and I ________ you do, too. Cut down on watching TV.

A． recommend     B．announce

C．confirm　     D．consult

高三英语单项填空中等难度题查看答案及解析

1.If a Canadian who is on a 7-day trip to New York buys $ 800 CAN worth of goods, how much should he pay tax on when returning home?

A．$ 800 CAN.       B．$750 CAN.         C．$ 400 CAN.        D．$ 50 CAN.

2.For an American citizen on a 2-day tour of Canada, how much tax does he have to pay on $ 1, 600 US worth of purchases when returning to the US?

A．$ 24 US.          B．$ 48 US.          C．$52 US.            D．$ 200 US.

3.What documentation should a couple with a 7-year-old child carry when they drive a car from Canada to America?

A．A BC driver’s license, an Air NEXUS card, and a birth certificate．

B．An Air NEXUS card, a U．S．Coast Guard Merchant Marine Document, and a birth certificate．

C．Two valid passport cards and a certified copy of a birth certificate．

D．A NEXUS card, a U．S．Coast Guard Merchant Marine Document．,and a certified copy of a birth certificate．

高三英语阅读理解中等难度题查看答案及解析

In space, there is no up or down. Without the gravity that we experience on Earth, as-tronauts and everything else on a spaceship float freely.

Humans can experience the sense of zero gravity without going into space. How？A zero-gravity flight. When an airplane flies in a lot of parabolas（抛物线）, a man-made zero-gravity environment is set up. Everything in the plane floats, even passengers.

Gravity has an effect on everything from the human body and mind to the behavior of plants and the way machines run. Space travel is expensive and dangerous. But zero-gravity flights let scientists conduct experiments in an environment that mimics（模拟） the conditions of space. On each of its research trip, Zero-G flies about 30 parabolas, each of which creates a period of weightlessness that lasts about 30 seconds. Nikolaus Kuhn of the University of Ba-sel, in Switzerland, flew with Zero-G. He was conducting an experiment about soil and the flow of water on Mars. The Red Planet has about one-third of the gravity that Earth has. This means water flows more slowly on Mars. By making the parabolas less steep, zero-gravity flights can make the feeling of Martian gravity. Flying with Zero-G has been necessary for Kuhn’s research. “It is the only chance, other than going to Mars, to mimic movement of water as it would be on Mars,” he told TFK.

For years, NASA used zero-gravity flights to prepare and train astronauts. “I have not been to space,” Peters of Zero-G says, “But I have been told by astronauts that zero-gravity feels exactly the same.” As humans continue to explore the universe beyond Planet Earth, zero-gravity flights will remain an important and fun tool. “It never gets old,” Peters says “I would do it every weekend for the rest of my life if I could.”

1.Why do scientists set up man-made zero-gravity environment？

A.To study the water on the earth.

B.To offer weightlessness as a business.

C.To take scientists to any other planets.

D.To mimic the condition of space for experiments.

2.How much time of weightlessness can a Zero-G light offer？

A.About 30 seconds. B.About 90 seconds.

C.About 15 minutes. D.About 30 minutes.

3.What feature do the parabolas in Zero-G flights have？

A.The gentler parabolas are, the more satisfied the researchers are.

B.The steeper parabolas are, the less weight the passengers feel.

C.The steeper parabolas are, the more successful the experiments are.

D.The gentler parabolas are, the more quickly water on Mars flows.

4.What can be inferred about the Zero-G flight from the text？

A.It is useless for training astronauts.

B.It has no side effect on human body.

C.It creates a substitutable environment of zero gravity in space.

D.It is cheaper but more dangerous than space travel.

高三英语阅读理解中等难度题查看答案及解析

单词拼写

1.While there is no r______ on foreign entries at the film festival, those that win are in the minority.

2.Having been away from home for one and a half years, she was d______ to see her little girl, hoping she could be home in no time.

3.Jin Mao Tower has fire and life systems that allow people to save themselves rather than waiting for others to come to their r______.

4.If you want to improve your spoken English, you need to s______ every opportunity to speak.

5.It is u______ acknowledged that people cannot succeed or achieve their targets without a strong will and persistence.

6. After seeing children die of malaria(疟疾) in Hainan Island, Tu Youyou decided to c______ her life to the research.

7.The weather is c______ in London and rain is probable at any moment.

8.R______ from nearly 200 countries have gathered in South Africa for a U.N. conference on climate change.

9.Investigators have a______ enough evidence to put that thief in jail for many years.

10.Sally d______ stayed behind after work so as to spend some time alone with him, even though she had finished all her work.

高三英语单词拼写中等难度题查看答案及解析

There is no need for you to go on a diet; you are only slightly overweight ______ your height.

A. in case of　　　　         B. in relation to　　     C. in return for　　　     D. in response to

高三英语单项填空中等难度题查看答案及解析

Summer is here, and with it comes a chance you'll get too much sun. While there's no cure for sunburn, a small but fascinating new study suggests taking large amounts of vitamin D after exposure may prevent the associated redness and inflammation (发炎).

In the paper, researchers exposed 20 volunteers to a light resembling solar radiation to induce a sunburn on a small piece of skin. They then gave the ''burn victims'' large amounts of vitamin D, and followed up with participants one, two and three days (and a week) later to measure skin redness and thickness. The researchers found that vitamin D decreased inflammation and redness, compared with taking a placebo (安慰剂). And this effect increased in proportion to how much was consumed. Vitamin D also appears to increase the activity of a gene called arginase-1, which is involved in tissue repair and healing. Taking 50, 000 international units (IU) of vitamin D--125 times the recommended daily allowance-led to a significant reduction in redness and inflammation, compared with the placebo. Those who took 100,000 IU had even less redness and pain; and those who took 200, 000 IU had the greatest reduction in inflammation.

This is the first study to show vitamin D can reduce inflammation, and suggests that it　 ''could potentially help prevent sunburn, '' says senior author Kurt Lu, a physician scientist and assistant professor at Case Western Reserve University.

It used to be thought vitamin D was primarily involved in building healthy bones and muscles, but recent research has found it has many more roles, including influencing inflammation, such as the kind associated with sunburns.

So, if you get burned, should you take a lot of vitamin D? The study authors don't recommend it. ''I think that's probably not a good idea and not well established by this study, '' says Barbara Gilchrest, a physician scientist at Massachusetts General Hospital. Such large amounts, if taken repeatedly, have the potential to cause vitamin D toxicity (毒性).

1.What does this passage mainly talk about?

A.An unusual method for relieving sunburn.

B.Tips for how to travel safely in summer.

C.A suggestion on taking vitamin D properly.

D.Advice on how to take medicine effectively.

2.How do the researchers confirm the healing effect of taking vitamin D?

A.By observing the inflammation of skin every day.

B.By measuring the thickness of skin after a week.

C.By increasing the daily volume of vitamin

D.By comparing the effect with that of placebo.

3.Figures are used in paragraph 2 in order to ______.

A.recommend the daily intake

B.argue against the benefits of more Vitamin D

C.show the more Vitamin D, the greater benefits

D.stress the potential danger of too much Vitamin D

4.What can be inferred about the function of vitamin D?

A.Repeatedly taking large amounts of Vitamin D is beneficial.

B.Vitamin D may bring more advantages to us than what has been found out.

C.Don't take vitamin D unless your doctor approves you to do it.

D.Vitamin D is more useful for curing sunburn than building healthy bones.

高三英语阅读理解中等难度题查看答案及解析

A rainy day can be a chance to recharge. While you relaxed on the sofa with a movie, the raindrops falling on your windows might one day provide the power for your TV. This is the idea behind an invention that harvests energy from water.

The technology is based on the triboelectric (摩擦电的)effect. An engineer at the University of Hawaii, David Ma knew that it’s possible to generate electricity by rubbing two things together. So, he thought, “Why don’t we use water?”

A drop of water sliding across a surface coated with two different materials would generate enough friction to create an electrical charge. By placing metal wires that the drop of water touched as it moved, it should be possible to harvest electricity, he reasoned.

It worked. In fact, the researchers lit up 15 LED bulbs with a single moving water drop.

This is not the first time that scientists have got electricity from water-generated friction( 摩 擦 ). Earlier experiments, though, harvested the charge produced in a surface by a sliding drop of water. There, the surface had acted as an electrode(电极). This is different. The energy of friction is being harvested from the water itself.

“It turns out,” Ma says, “the charge in the water drop is way more than the charge produced in the other electrode.” In fact, his team’s model generated almost 100 times more power than previous experiments from a single drop of water.

“The technology could someday power phones, sensors or other small electronics,” says Christopher Oshman, an engineer at the Colorado School of Mines. “This work is a step toward harvesting the energy of moving objects all around us, including ourselves, to power the electronic appliances we use every day,” he says.

Ma has shown that the technology can work in a lab, Oshman says. Next, the Colorado researcher would like to see it tried on a larger scale, such as on an umbrella.

1.How did the author introduce the topic of the text?

A.By telling a story.

B.By raising a question.

C.By giving an example.

D.By imagining a situation.

2.What does the underlined word “it” in Paragraph 3 refer to?

A.The wire. B.The drop of water.

C.The surface. D.The electricity.

3.What is unique about Ma’s technique compared with earlier experiments?

A.The water itself acts as an electrode.

B.It is based on the triboelectric effect.

C.It produces electricity from water-made friction.

D.It uses a surface coated with two different materials.

4.What does Oshman say about Ma’s technology?

A.It has a promising future.

B.It will do well on an umbrella.

C.It works well in the real world.

D.It will replace batteries someday.

高三英语阅读理解困难题查看答案及解析

—How did you find him out?   —I ______ his name by chance on the list.

A．came down        B．came about        C．came up          D．came across

高三英语单项填空中等难度题查看答案及解析

________a slight chance that Guo Jingjing will take part in the 2010 London Olympic Games.

高三英语单项填空简单题查看答案及解析