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The commission recommended that the space agency ______ a better quality-control program for engine parts.

While ______ the cause of the accident to one part, the commission also raised broader concerns about quality control.

The Obama ______ hasn’t tried to formulate policy that far into the future.

The manufacturers rely increasingly on governments, here and abroad, to ______ and expand.

The most ______ explanation is that professors are not particularly interested in students’ welfare.

The focus of the conference was the application of computer-game technologies and ______ environments to real-world business problems.

His casual clothes were not ______ for such a formal occasion.

The wealthier nations ______ their poorer neighbors of their most able citizens.

With its share of the market falling sharply, Vermeer opened a plant in Beijing, taking a Chinese partner and drawing help for the ______ from the Chinese.

The old gentleman ______ to be an old friend of his grandfather’s.

The ______ between direct and non-direct investment is thus meant to focus on the issue of control.

It is well known that the first ______ can only work hard planting young trees for a new business, while the following people may obtain the successful fruits.

Three ______ of workers produce machines that reduce tree branches to wood chips.

The problem of ______ injury and sickness received a good deal of publicity and attention this year.

Tall and ______, with close-cropped hair, Austin looks like anyone else on the track team.

He was ______ a medal for his outstanding contribution to science.

Directions: As a developing country, china is faced with the dual tasks of developing economy and protecting the environment. Which one is more important to a developing country? Write an essay to clarify your own points of view towards this issue. You should write no less than 200 words.

For millions who have lost jobs or faced eviction in the economic downturn, homelessness is perhaps the darkest fear of all. In the end, though, for all the devastation wrought by the recession (衰退), a vast majority of people who have faced the possibility have somehow managed to avoid it. (1)Nevertheless, from 2007 through 2009, the number of families in homeless shelters—households with at least one adult and one minor child—leapt to 170,000 from 131,000, according to the Department of Housing and Urban Development. (2)More than 550,000 people have received aid, including more than 1,800 in Rhode Island, with just over a quarter of the money for the program spent so far nationally, state and federal officials said.Even so, it remains to be seen whether the program is keeping pace with the continuing economic hardship. (3)The number of families who have sought help this year at Crossroads has already surpassed the total for all of 2009. Through July, 324 families had come needing shelter, compared with 278 all of last year.National data on current shelter populations are not yet available, but checks with other major family shelters across the country found similar increases. (4)Without national data, it is impossible to say for certain whether these are anomalies. Clearly, however, many families are still being sucked into the swirling financial drain that leads to homelessness. (5)

Petroleum products, such as gasoline, kerosene, home heating oil, residual fuel oil, and lubricating oils, come from one source—crude oil found below the earth’s surface, as well as under large bodies of water, from a few hundred feet below the surface to as deep as 25,000 feet into the earth’s interior. Sometime crude oil is secured by drilling a hole through the earth, but more dry holes are drilled than those producing oil. Pressure at the source or pumping forces crude oil to the surface. Crude oil wells flow at varying rates, from ten to thousands of barrels per hour. Petroleum products are always measured in 42-gallon barrels.Petroleum products vary greatly in physical appearance: thin or thick, transparent or opaque, but their chemical composition is made up of only two elements: carbon and hydrogen, which form compounds called hydrocarbons. Other chemical elements found in union with the hydrocarbons are few and are classified as impurities. Trace elements are also found but these are of such minute quantities that they are disregarded. The combination of carbon and hydrogen forms many thousands of compounds which are possible because of the various positions and joinings of these two atoms in the hydrocarbon molecule.The various petroleum products are refined from the crude oil by heating and condensing the vapors. These products are the so-called light oils, such as gasoline, kerosene, and distillate oil. The residue remaining after the light oils are distilled is known as heavy or residual fuel oil and is used mostly for burning under boilers. Additional complicated refining process rearranges the chemical structure of the hydrocarbons to produce other products, some of which are used to upgrade and increase the octane rating of various types of gasoline.

In Japan’s capital city of Tokyo, earthquake danger limits the height of buildings. The city has spread out far and the traffic has become so heavy that it is very difficult to get from one place to another. The price of land, too, has skyrocketed. All this explains why a group of Japanese land developers came to the conclusion that there was nowhere to go but down. So far they have dug out space underground for fifteen major shopping centers, and the underground construction has only begun.What are some of the advantages of shopping and eating underground? Clean, filtered air is one of them. The city of Tokyo has one of the most serious smog problems in the world. Another advantage is that you escape the ever-present threat of traffic accidents on the city’s busy streets. Still another is the convenience of getting around: You’re usually right next to, or even in, a subway station. And you can even spend the night underground if you like. The Kyobashi Station, for example, in downtown Tokyo, has a hotel with a bar, restaurant, and barbershop.All sorts of surprises can be found in the underground world. At the enormous Shinjuku Subway Station you drive down a winding road lined with water fountains to arrive at a scarce item in Tokyo—a parking lot—and you find stores and shops a few steps away. In the second basement of the Toshiba is a “Fisherman’s Wharf” crowded with pleasant little seafood places. A tunnel that connects the Hibiya and Sanshin Buildings has a number of art galleries, as well as medical and dental clinics. In between are little coffee shops where you can relax and get refreshments.Probably the most versatile of the underground wonders, and certainly the most complicated to build, is the Yaesu Subcenter at the heart of the city, where four subway lines link up. Its shopping promenade, which is the size of three football fields, contains 350 stores. In Yaesu you can eat in a different place every day for three months. You can draw money out of a bank and invest it at a stockbroker’s office. There are tailors, watch repairers, furriers, florists, and book sellers. You can meditate in the Plaza of Water while gazing at eight tanks of rare fish. And you can even get arrested by a police officer from the Yaesu subterranean police station!Under all the commercial activity is a parking lot for 520 cars. And under that is a control center where TV monitors watch the devices that watch the air-its temperature, moisture, and purity. There is no alarm for earthquakes, which are common in Tokyo, but the experts feel that there would be fewer problems underground than on the surface in case of tremors. Yaesu also has emergency generators for power and a chemical system for fighting fire.Underground construction can be complex and expensive. At times, the Yaesu crews could work only three hours a day because their activities interfered with the running of the subway. Then there was the problem caused by finding unidentified water and gas pips. Since many of the municipal blueprints of pipe systems were destroyed during World War II, strange pipes kept turning up; and work had to be stopped while they were identified and taken care of by detour or replacement.There was also some resistance from the people above ground. A good many neighborhood shopkeepers began to picket the project crying, “underground is for moles.” They reasoned that they would lose a lot of their business to the underground competition. The Yaesu people countered by offering them a chance to buy stock in the project. There were a lot of takers, and this had the effect of quieting the complainers. The Yaesu builders wanted to go deeper, but after they had spent 31 million dollars, they ran out of money. Still, there seems to be little doubt that there will be further development down under. In a city like Tokyo, almost the only space left is underground.1. If you want to have your hair cut, you can go to the __.2. It will take _ to eat in a different place every day in Yaesu.3. Which of the following statements is NOT true?4. Why underground pipes are difficult to be identified?5. What can be inferred from the passage that?

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