题目内容：

At the Fairmont San Francisco in California, the wealthy visitors arriving through the front door aren't the only guests staying at the five-star hotel.On the hotel's rooftop, the buzz(嗡嗡声)of bees can be heard.Bees have become more common guests at hotels, especially in San Francisco.Ten hotels have hives(蜂房)on rooftops.Urban beekeeping allows hotels to market sustainability(可持续性), harvest honey and raise awareness for the particular challenges bees face.

“When companies have honeybees, it helps in a few different ways...by bringing awareness to the fact that our noisy friends need flowers that are clean and free of pesticides(杀虫剂)in order to feed, and that our bees need habitats," says Becky Masterman of the University of Minnesota Bee Squad.

The U.S.agricultural industry has come to rely on commercial bees for much of its pollination(授粉)needs.At pollination time, commercial beekeepers provide truckloads of bees.European honeybees and Apis mellifera are brought in.They are not native to North America.Continuing losses of these commercial hives could eventually be felt at the grocery store.The costs of fruits and vegetables that the bees pollinate could potentially go up over time because the pollination costs are higher.

For the hotels, the bees offer more than honey.More guests are looking for places to stay that help the environment, says Melissa Farrar.She is the director of marketing communications for the Fairmont.The Fairmont offers tours of hive spaces to interested guests.Some guests go on to start their own hives.The Fairmont has also hosted school groups from preschoolers to high school photography classes."Maybe we can help people appreciate that nature's important, and that we take care of the environment.And if you want to eat fruits and veggies, you need bees in the background," says Ms.Farrar.

1.What is the text mainly about?

A. Wildlife research in San Francisco.

B. Environmentally aware tourism in America.

C. The introduction of beekeeping to hotels.

D. The conflict between commercial bees and native bees.

2.What is a result of using commercial bees for pollination?

A. More profits for greengrocers.

B. More expensive fruits and vegetables.

C. A decrease in the number of native bees.

D. An increase in greengrocery diversity in stores.

3.Why would more guests choose to stay at hotels with hives?

A. They regard it as a trendy thing to do.

B. They'd like to try the freshest honey.

C. They consider it an eco-friendly idea.

D. They come to learn to start their own hives.

4.What is Ms.Farrar’s attitude to urban beekeeping?

A. Doubtful    B. Supportive    C. Disapproving    D. Uncaring