My love affair with the sea began when I was no more than six years old, walking along the sandy beaches. I always wanted to make the first set of footprints in the wet sand.
Unlike many surfers who sought the perfect wave, my interests always lay beneath the sea’s surface in a world I could only imagine and dream of. Soon, wearing a snorkel and a mask, I made my first solo adventures in the deep.
Perhaps the greatest turning point in my life came when I was in high school and I wrote a letter to the famous Scripps Oceanographic Institution, in San Diego, asking how I might learn more about the sea.
A kind scientist answered my letter and told me how to apply to Scripps for a summer scholarship, which I received. During one of their cruises that summer, I met Dr. Robert Norris, a marine geologist. He loved the sea almost as much as I did. Soon he was asking me what my plans were and where I expected to attend college. I told him I didn’t know, so he suggested I consider his school, the University of California in Santa Barbara.
Now my love affair with the sea became a serious endeavor. If I wanted to be an undersea explorer, I needed to learn as much as I could about the laws of the physical world that controlled the environment I wanted to enter. The undersea world is not our natural world. It is unforgiving to those who make mistakes. At its greatest depths the water temperature is near freezing, the pressure is eight tons per square inch, and it is totally dark. It is easy to get lost in such a world. I needed to learn a lot about geography, navigation, meteorology, geology, biology, and many other things. While I was in school, I took a little of everything.
I decided another important thing for me to do was to join the U.S. Navy. If I was going to be an undersea explorer, I would have to lead men and women on dangerous adventures where they might get hurt, and I didn’t want that to happen. In the Navy I learned discipline, organization, and how to motivate and lead people on expeditions so that we could explore the wonders of the deep.
Finally, the time came to put all that I had learned to use, to go forth with a team of men and women and explore an adventure I am still on and hope to be on for many years to come.
【小题1】In Paragraph 5, the writer discusses “the laws of the physical world.”Which of the following is an example of one of the laws?

Every autumn, as families across the United States get ready to send their kids to college, the economics of higher education receive renewed attention. College is expensive and becoming more so in the U. S. The situation raises two questions: Why does it cost so much, and how can students and their families afford it?

Several studies published in the past few weeks reflect on these questions. The findings provide comfort to poor families.

First, it appears that only the minority actually pay the "high price". A study by the US Education Department's National Center for Education Statistics found that 55 percent of college students last year received some forms of help--scholarships, loans(贷款)or jobs.

Other factors are also at work. The government has increased the size of its grants (补助金)to lower-income students. Grants, unlike loans, don't have to he repaid and are awarded only to college students who have not earned a bachelor's or professional degree.

At the same time, most colleges are spending more on undergraduate education than they are collecting in tuition fees. A study, which is part of the Williams College Project on the Economics of Higher Education, reaches the conclusion that on average colleges “subsidize (赞助)” their students. The results of these studies, however, leave unanswered the questions of whether educational costs are higher than they need to be. Some experts argue that much of the college cost results from educational competition for fame, students and facilities.

This puts upward pressure on tuition, hut many colleges feel that good fame will enable them to attract students even if they charge them more.

Therefore, until something important changes in the marketplace, costs seem likely to continue rising. And American families will continue to beat down the doors of the high price "college in the end．

 From the fourth paragraph of the passage we can conclude that _______.

A．American families earn only a little money every year

B．American families pay little attention to education

C．American students often have to stop their studies

D．American colleges have different ways to help poor students

 In the writer's opinion, for students from lower-income families, the best way is ________.

       A．to find a good job and make money        

       B．to borrow money from the banks

       C．to ask for grants                             

       D．to borrow money from friends

 It can be inferred that in America _______.

       A．famous colleges only accept rich students.    

B．famous colleges charge their students more money

       C．the government spends little money on education

       D．families often break the doors of colleges

 The writer of this passage seems to hold the opinion that _______.

       A．college fees rise too fast for poor families.   

B．poor people should borrow money from banks

       C．poor people don’t need to send their children to college

D．colleges should get more money to improve themselves

The Green Microgym in Portland，Oregon has all the usual stuff you'd expect-sweaty people，loud music，smooth exercise equipment-but it has some extras as well. Everywhere you look，there are power wires. And these aren't the typical kind that let you surf the Web while you ride a spin cycle-although. you can do that too．The gym uses special exercise equipment that captures（捕获）the energy you create while riding, converts（转换）it into electricity and channels it into the power outlets（插座）．

The idea of using exercise equipment to produce electricity is not new. A gym in Hong Kong has been doing this since 2007. But clean (and healthy）energy is just now starting to catch on in U. S. gyms·"We have seen a significant increase in interest in the past six months，which is a good sign that fitness centers are ready to spend money on green technologies，” says Mike Curnyn，co-founder of the Green Revolution，a Connecticut-based firm that wires bikes into a central battery that can store energy.

The Green Microgym，first opened in 2008，has more than 200 members and is doing so well that owner Adam Boesel opened another one five miles from the original．Although membership costs about the same as ordinary gyms，customers can earn gift certificates from local businesses for watts produced while exercising．An average workout creates 37. 5 watt hours，which is enough to power a phone for a week．

Boesel uses spin bikes made by Resource Fitness，a Seattle company he co-owns，that captures energy produced from the flywheel. Wires send the converted AC current（交流电流） into any standard wall outlet-for this reason，the product line's name is Plug Out-and the energy created is used before the building draws power from the grid（电网）．Unlike the Green Revolution equipment，Plug Out machines cannot store extra energy. A third company，the Florida-based ReRev，is adding converters to a specific brand of spin bikes. But since the converters add＄1，000 to the price of the equipment，the ReRev and Green Revolution machines are at a disadvantage．

Resource Fitness，by contrast，sells its equipment for the same＄1，200 price as non- electricity-producing machines，removing the question of how long it will be until the energy savings pay for the cost of the unit．The company can afford to do this because its designs don’t call for the extra wiring needed for battery packs and large converters．It is also trying to price competitively with standard equipment so more gyms-and gym goers-will make the switch．

1.Members of the Green Microgym earn gift certificates for_______．

A .using the man-powered exercise equipment

B. saving electricity for local businesses

C. producing green electricity to power their phones

D. paying higher membership fees

2.The spin bikes made by Resource Fitness are different from those by Green Revolution in that_______.

A. they are easier to ride

B. they are more expensive

C. they don't have wires connected

D. they can not store extra electricity

3.What might prevent the green exercise equipment from getting more popular？

A .People's unwillingness to go green．

B. The high cost of making it.

C. Safety problems concerning electricity.

D. Lack of certificates．

4.The underlined words“make the switch”in the last paragraph most probably mean_____.

A. change to a different gym

B. use green exercise equipment

C. switch on the spin bikes

D. add a battery to the machine

MOSCOW(Reuters) – Russia hopes the United States will extend the deadline to retire its space shuttles beyond 2011 and has heard unofficially it is possible, the head of Russia"s space agency was quoted as saying on Friday.

The U.S. space agency NASA(美国宇航局) plans six more missions by its fleet of aging space shuttles by late next year or early 2011 after the construction of the $100 billion International Space Station (ISS) is completed. The shuttles will then be retired. But the head of Roscosmos, Russia"s space agency, said he would prefer to see further shuttle missions to the Space Station, now in orbit 360 km (225 miles) above Earth. "From some sources we have learned that it is possible to extend the life of the shuttle beyond 2011," Roscosmos chief Anatoly Perminov was quoted by RIA news agency as saying. Reuters was not invited to the briefing(简报会). "Then the situation would change substantially and it would be possible to work jointly with the Americans, unlike now, when the main burden (for the ISS) lies with the Russian side," Perminov was quoted as saying by Interfax. Perminov said he had not been told this through official channels, Interfax news agency reported. He added that NASA"s new chief and former astronaut Charles Bolden would visit Russia"s Baikonur cosmodrome on September 30 in his first foreign trip.

NASA"s future strategy is currently under review with the main focus on possible flights to Mars. It is also encouraging a private space taxi project to the ISS. NASA"s current plan, conceived under former President George Bush after the Columbia accident, is to complete the space station, retire the shuttles and build new spaceships. A new rocket and capsule to transport astronauts to the ISS is also being developed but will not be operational until about 2015. Until then, NASA will rely on Roscosmos and must pay $50 million per seat for flights to the ISS by Soyuz capsules.

The U.S., Russian and Chinese governments are the only entities currently capable of human orbital space flight, although several U.S. companies are developing vehicles and support services to do so.

1.What does the underlined word “this” in Paragraph 2 refer to?

         A．NASA agrees to extend the life of the shuttles beyond 2011.

         B．Reuters was not invited to the briefing.

         C．The US would work jointly with Russia.

         D．NASA’s new chief would visit Russia’s Baikonur cosmodrome.

2.NASA’s current plan includes all the following EXCEPT       .

         A．completing International Space Station

         B．flights to Mars

         C．retiring the current space shuttles

         D．building new spaceships

3.If the US doesn’t extend the life of the shuttles beyond 2011,         .

         A．International Space Station will be quit

         B．Roscosmos will have to build more spaceships

         C．NASA will have to quicken the development of the new rocket and capsule

         D．Roscosmos will be burdened with the transportation to ISS

4.We can infer from the passage that        .

         A．China has already been involved in the project of flights to Mars

         B．it is certain the NASA will retire the current space shuttles as planned

         C．NASA is considering Russia’s suggestion

         D．NASA will be able to provide a private space taxi project to the ISS by 2015.

Traditional surgical procedures require surgeons to make large incisions(伤口) in a patient’s body in order to gain access to the internal organs. It was once common for heart surgeons, who perform highly specialized and complex procedures, to make long incisions in a patient’s chest and then split the breastbone to reach the heart. Patients who undergo surgery are often at the risk of infection, as bacteria can infect the cut in the skin. In addition, there is often a lengthy recovery period.

A surgical technique known as “keyhole surgery” has become more common in recent years. In general, the surgeon will make a couple of small incisions around the area where the operation is going to be performed. Tubes are pushed into the holes, and a tiny camera, which is called an endoscope, is put into the body. The camera is attached to a large monitor screen that is positioned so that the doctor can see it while he performs the operation. In addition to the camera, doctors also push their tiny surgical instruments through the tubes. The awkward part of keyhole surgery is that it is counterintuitive; that is to say, if a surgeon wants to move the tool to the left, he or she must push it to the right.

Other advancements in technology are also being used today in the OR (operation room). A new machine called the “da Vinci Surgical System” has been tested in hospitals in the U.S.. Unlike keyhole surgery, the da Vinci’s robot’s moving parts are designed to imitate the natural hand and wrist movement of a surgeon, thus providing better control and sensitivity. The system is controlled by a surgeon from a console(控制台). Sitting at a console a few feet from the patient, the surgeon can perform an operation by holding and moving highly sensitive pads that enable him or her to control the instruments. The area of the body on which the surgeon is working is enlarged on a screen, which is attached to the console. This gives surgeons a realistic three-dimensional view of the area — similar to what they would see during a traditional surgical procedure.

Although the da Vinci Surgical System is undergoing some trials for some procedures, it has been welcomed as revolutionary by many surgeons. Patients with serious illnesses must still undergo major surgery, but the smaller incisions and less invasive procedures typically mean that a shorter recovery time is needed. In some cases, the patient’s stay in the hospital has been cut in half when the da Vinci Surgical System was used. On the downside, some operations have taken up to fifty minutes longer because surgeons are inexperienced at using the new technology. As surgeons become more familiar with the machines, the time needed for surgical procedures is likely to decrease.

1.What can be learned about the traditional surgery according to the passage?

2. Which of the following is one DISADVANTAGE of keyhole surgery?

3. The da Vinci Surgical System differs from keyhole surgery in that _______.

4. The passage mainly tells the reader ________.