________ with some research materials, he decided on three possible approaches in his experiment.

A. Preparing      B. Prepared          C. Having prepared   D. Prepare

 ________ with some research materials, he decided on three possible approaches in his experiment.

   A. Preparing          B. Prepare          C. Having prepared       D. prepared

.（2010·浙江温州中学高三9月月考）      12. ______ with some research findings, I decided on three possible approaches.

A. Preparing                      B. Having prepared

C. To prepare         D. Prepared

It was the summer of 1965. Deluca, then 17, visited Peter Buck, a family friend. Buck asked Deluca about his plans for the future. “I’m going to college, but I need a way to pay for it,” DeLuca recalls saying. “Buck said, ‘You should open a sandwich shop.’”

That afternoon, they agreed to be partners. And they set a goal: to open 32 stores in ten years. After doing some research, buck wrote a check for $1000. DeLuca rented a storefront (店面) in Connecticut, and when they couldn’t cover their start-up costs, Buck kicked in another $1000.

But business didn’t go smoothly as they expected. DeLuca says, “After six months, we were doing poorly, but we didn’t know how badly, because we didn’t have any financial controls.” All he and Buck knew was that their sales were lower than their costs.

DeLuca was managing the store and going to the University of Bridgeport at the same time. Buck was working at his day job as a nuclear physicist in New York. They’d meet Monday evenings and brainstorm ideas for keeping the business running. “We convinced ourselves to open a second store. We figured we could tell the public, ‘We are so successful, we are opening a second store.’” And they did—in the spring of 1966. Still, it was a lot of learning by trial and error.

But the partners’ learn-as-you-go approach turned out to be their greatest strength. Every Friday, DeLuca would drive around and hand-deliver the checks to pay their suppliers. “It probably took me two and a half hours and it wasn’t necessary, but as a result, the suppliers got to know me very well, and the personal relationships established really helped out,” DeLuca says.

And having a goal was also important. “There are so many problems that can get you down. You just have to keep working toward your goal,” DeLuca adds.

DeLuca ended up founding Subway Sandwich, the multimillion-dollar restaurant chain.

DeLuca opened the first sandwich shop in order to ____.

       A．support his family

       B．pay for his college education

       C．help his partner expand business

       D．do some research

Which of the following is true of Buck?

       A．He put money into the sandwich business.

       B．He was a professor of business administration.

       C．He was studying at the University of Bridgeport.

       D．He rented a storefront for DeLuca.

What can we learn about their first shop?

       A．It stood at an unfavorable palce.

       B．It lowered the prices to promote sales.

       C．It made no profits due to poor management

       D．It lacked control over the quality of sandwiches

They decided to open a second store because they ___    .

       A．had enough money to do it.

       B．had succeeded in their business

       C．wished to meet the increasing demand of customers

       D．wanted to make believe that they were successful

What contribute most to their success according to the author?

       A．Learning by trial and error.     B．Making friends with suppliers.

       C．Finding a good partner.       D．Opening chain stores.

C

Planting trees around poultry farms can improve air and water quality -- and relations with neighbors. Research has shown that just three rows of trees near poultry houses can reduce the release of dust and ammonia(氨). They can also reduce the strong smell of ammonia gas.

The trees take dust, ammonia and odors in their leaves. They also provide shade from the sun, so they reduce cooling costs in summer. And they act as a windbreak, so they reduce heating costs in winter. Trees can also improve water quality around farms by removing pollutions from soil and groundwater.

Several years ago, people were objecting to the odor of poultry farms on the Delmarva Peninsula in the eastern United States. Delmarva is where the states of Delaware, Maryland and Virginia come together. Two thousand farms there can each house an average of seventy-five thousand chickens.

Traditionally the farms used windows to provide fresh air in the chicken houses. Farmers rarely planted trees or tall crops around the buildings, so there would be no barrier to the airflow. But then farms began to use new ventilation systems. Instead of windows, the new systems used tunnel fans to circulate air. The fans directed airflow from the poultry houses toward the homes of neighbors.

Researchers began dealing with the problem in two thousand. They found that over a period of six years, planting three rows of trees reduced total dust and ammonia by more than half. And they found that smells were reduced by eighteen percent.

Farmers may think trees will take too long to grow and be effective. But some trees can grow quickly. At least one-third of the Delmarva farms have planted trees, technically known as vegetative environmental buffers. The idea offers a way to cut pollution, save money and energy, and make the neighbors happy.

49. The second paragraph mainly tells us ______.

A. planting trees as much as possible

B. the advantages of trees

C. how to reduce heating costs

D. why trees are received

50. The word “odor” in paragraph 3 means ______.

A. plant          B. smell         C. height        D. water

51. The farms on the Delmarva Peninsula used to use ______ in chicken houses to provide fresh air.

A. trees          B. tunnel fans C. windows    D. poles

52. It can be learned from the last two paragraphs that ______.

A. three rows of trees are really good to the environment

B. researches began to realize the problem in 2000

C. most farmers show interest in planting trees

D. the trees growing quickly can be cut off in a few years