controllable urge wells up to return to Long Island even as others make their way south. I guess I am a snowbird stuck in reverse. Instead of enjoying Florida's mild winters, I willingly endure the severe weather on Long Island, the place I called home for 65 years.

I'm like a migratory bird (候鸟) that has lost its sense of timing and direction, my wings flapping against season.

　So what makes me fly against the tide of snowbirds? The answer has a lot to do with my reluctance to give up the things that define who I am. Once I hear that the temperature on Long Island has dipped into the range of 40 to 50 degrees, I begin to long for the sight and crackling sound of a wood fire. I also long for the bright display of colors-first in the fall trees, and then in the lights around homes and at Rockefeller Center. Floridians decorate too, but can't create the special feel of a New England winter.

I suppose the biggest reason why I return is to celebrate the holidays with people I haven't seen in months. What could be better than sitting with family and friends for a Thanksgiving turkey dinner, or watching neighbors children excitedly open gifts on Christmas? Even the first snowfall seems special. I especially enjoy seeing a bright red bird settling on a snow-covered branch. (My wife and I spend winters at a retirement community in Ridge, and I'm grateful that I don't have to shovel.)

While these simple pleasures are not unique to Long Island, they are some of the reasons why I come back. Who says you can't go home?

29．What's the difference between Florida and Long Island?

　　A．Winters in Florida are milder. B．The snowbirds in Florida are rarer.

　　C．Weather in Florida is severer. D．Florida is nearer to the ocean.

30．What does the underlined word "reluctance" in Paragraph 3 mean?

　　A．Unwillingness. B．Expectation. C．Coincidence. D．Motivation.

31．Which of the following words can best describe the author?

　　A．Imaginative and outspoken. B．Hard-working and serious.

　　C．Homesick and easy-going D．Anxious and painful.

32．What's the author's purpose in writing the text?

　　A．To describe his dream to be a free bird.

　　B．To express his feeling of missing his hometown.

　　C．To praise the beauty and warmth of his hometown.

　　D．To explain the reasons for moving from his hometown.

　　　D

　　Plastic-Eating Worms

　　Humans produce more than 300 million tons of plastic every year. Almost half of that winds up in landfills(垃圾填埋场)，and up to 12 million tons pollute the oceans. qSo far there is no effective way to get rid of it, but a new study suggests an answer may lie in the stomachs of some hungry worms.

Researchers in Spain and England recently found that the worms of the greater wax moth can break down polyethylene, which accounts for 40% of plastics. The team left 100 wax worms on a commercial polyethylene shopping bag for 12 hours, and the worms consumed and broke down about 92 milligrams, or almost 3% of it. To confirm that the worms' chewing alone was not responsible for the polyethylene breakdown, the researchers