Mr. Hart has trained her. He's her ______.

As long as her parents can remember, 13-year-old Katie Hart has been talking about going to college. Her mother, Tally, a financial-aid officer at an Ohio university, knows all too well the daunting calculus of paying for a college education. Last year the average yearly tuition at a private, four-year school climbed 5.5 percent to more than ＄17,000. The Harts have started saving, and figure they can afford a public university without a problem. But what if Katie applies to Princeton (she's threatening), where one year's tuition, room and board-- almost ＄ 34,000 in 2002-- will cost more than some luxury cars? Even a number cruncher like Tally admits it's a little scary, especially since she'll retire and Katie will go to college at around the same time.

Paying for college has always bean a humbling endeavor. The good news: last year students collected ＄ 74 billion in financial aid, the most ever. Most families pay less than full freight. Sixty percent of public-university students and three quarters of those at private colleges receive some form. of financial aid-- mostly, these days, in the form. of loans. But those numbers are not as encouraging as they appear for lower-income families, because schools are changing their formulas for distributing aid. Eager to boost their magazine rankings, which are based in part on the test scores of entering freshmen, they're throwing more aid at smarter kids-- whether they need it or not.

The best way to prepare is to start saving early. A new law passed last year makes that easier for some families. So-called 529 plans allow parents to sock away funds in federal-tax-free-investment accounts, as long as the money is used for "qualified education expenses" like tuition, room and board. The plans aren't for everyone. For tax reasons, some lower-and middle-income families may be better off choosing other investments. But saving is vital.

Aid packages usually come in some combination of grants, loans and jobs. These days 60 percent of all aid comes in the form. of low-interest loans. All students are eligible for "unsubsidized" federal Stafford loans, which let them defer interest payments until after graduation. Students who can demonstrate need can also qualify for federal Perkins loans or "subsidized" Staffords, where the government pays the interest during school.

Traditional scholarships, academic or athletic, are still a part of many families' planning. Mack Reiter, a 17-year-old national wrestling champion, gets so many recruiting letters he throws most away. He'll almost certainly get a free ride. Without it, "we would really be in a bind," says his mother, Janet. For everyone else, it's worth the effort to pick through local and national cholarship offerings, which can be found on Web sites like collegeboard. com.

What does the author intend to illustrate with the example of the Harts?

A．The difficulty of paying the tuition.

B．The increasing tuition in the university.

C．The far-sight of the parents.

D．The promising future of Katie.

As long as her parents can remember, 13-year-old Katie Hart has been talking about going to college. Her mother, Tally, a financial-aid officer at an Ohio university, knows all too well the daunting calculus of paying for a college education. Last year the average yearly tuition at a private, four-year school climbed 5.5 percent to more than $17,000. The Harts have started saving, and figure they can afford a public university without a problem. But what if Katie applies to Princeton (she's threatening), where one year's tuition, room and board — almost $34,000 in 2002 — will cost more than some luxury cars? Even a number cruncher like Tally admits it's a little scary, especially since she'll retire and Katie will go to college at around the same time.

Paying for college has always been a humbling endeavor. The good news: last year students collected $74 billion in financial aid, the most ever. Most families pay less than full freight. Sixty percent of public-university students and three quarters of those at private colleges receive some form. of financial aid — mostly, these days, in the form. of loans. But those numbers are not as encouraging as they appear for lower-income families, because schools are changing their formulas for distributing aid. Eager to boost their magazine rankings, which are based in part on the test scores of entering freshmen, they're throwing more aid at smarter kids— whether they need it or not.

The best way to prepare is to start saving early. A new law passed last year makes that easier for some families. So-called 529 plans allow parents to sock away funds in federal-tax-free-investment accounts, as long as the money is used for "qualified education expenses" like tuition, room and board. The plans aren't for everyone. For tax reasons, some lower-and middle-income families may be better off choosing other investments. But saving is vital.

Aid packages usually come in some combination of grants, loans and jobs. These days 60 percent of a ll aid comes in the form. of low-interest loans. All students ate eligible for "unsubsidized" federal Stafford loans, which let them defer interest payments until after graduation. Students who can demonstrate need can also qualify for federal Perkins loam or "subsidized" Staffords, where the government pays the interest during school.

Traditional scholarships, academic or athletic, are still a part of many families' planning. Mack Reiter, a 17-year-old national wrestling champion, gets so many recruiting letters he throws most away. He'll almost certainly get a free ride. Without it, "we would really be in a bind," says his mother, Janet. For everyone else, it's worth the effort to pick through local and national scholarship offerings, which can be found on Web sites like collegeboard. com.

What does the author intend to illustrate with the example of the Harts?

A．The difficulty of paying the tuition.

B．The increasing tuition in the university.

C．The far-sight of the parents.

D．The promising future of Katie.

Fill in the chart according to the hydride related knowledge.

"If we don't achieve some major step changes in crop yields by 2050," says Dr. James Hartwell, "there will be a major shortfall in available food to feed the world's population." It's a serious problem to which Hartwell and a team at Liverpool University may help fend part of a solution. They are investigating the unusual properties of a Madagascan plant, the Kalanchoe fedtschenkoi. Unlike other plants it captures its carbon dioxide at night and is ten times more water-efficient than crops such as maize, which means it is highly suitable for desert area. Making desert lands more amenable to crops will be increasingly important over the coming decades.

Hartwell has been fascinated by desert plants since he was an undergraduate, and his interest carried through to his doctorate and a research Fellowship, What Liverpool University has added to the research is sophisticated DNA sequencing technology. "We tapped into that," says Hartwell, "and realised it was perfect for going into our desert plants and starting to understand what genes they are using to survive desert conditions and, in particular, to perform. this nocturnal(夜间发生的) CO2 fixation that they do. "

This aspect of the plant is taking on major significance. "The Intergovernmental Panel on Climate Change has predicted that in the next 50 years, already droughty regions will become droughtier," explains Hartwell, "and if they will expand, there will be increasing desertification."

There are two possible directions in which the results of this research may be used. They are not actually producing a desert plant but their high level research may lead to that. They may be able to deploy (展开，移植)the knowledge and, potentially, some of the genes into food crops such as wheat and soy beans. Though, as Hartwell points out, it relies on Genetically Modified food becoming widely accepted.

The other route is that these plants could be grown for biomass (大面积高密度的)that could feed into biofuel production. "If this is viable we could perhaps provide, certainly a percentage, of the world's biofuel needs through using marginal land, and growing desert plants that are very happy to grow there. " With questions being asked about the impact of current biofuel production, as well as food production and prices, the research at Liverpool can create real possibilities for adapting land usage in a time of climate change.

We may infer from the flint paragraph that ______.

A．world population will be a serious problem in the future

B．Hartwell and his team has found a total solution to the food shortage

C．the Kalanchoe fedtschenkoi needs more water than other plants

D．making the crops fit to the desert conditions is significant

Which of the following statements concerning Tennessee Williams is NOT correct?

A．He has been influenced by Anton Chekhov,D. H. Lawrence and Hart Crane.

B．His last Broadway play is named Clothes for a Summer Hotel.

C．The recurrent themes in many of his plays are loneliness and desire.

D．He was awarded Nobel Prize for his brilliance as a dramatist.