Styrofoam,orpolystyrene,isalight-weightmaterial,abou...

问题详情：

    Styrofoam, or polystyrene, is a light-weight material, about 95 percent air, with very good

  insulation(隔热) properties, according to . It is used in products from cups that

  keep your drinks hot or cold to packaging material that protects items during shipping.

    With the above good features, Styrofoam still enjoys a bad reputation. It cannot be recycled

  without releasing dangerous pollution into the air. The U.S. Environmental Protection Agency

  says it is the fifth-largest creator of harmful waste.

    But now the common worms which are usually disgusting can come to the rescue,

  specifically, mealworms. Scientists from the U.S. and China have discovered that mealworms can

  digest plastic. One mealworm can digest a pill-sized amount of plastic a day. Study co-author Wei-

  Min Wu says that in 24 hours, the plastic is turned into carbon dioxide.

    Since Styrofoam has no nutrition at all, are the worms hurt by eating plastic? Much to the

  scientists’ surprise, the study found that worms eating Styrofoam were as healthy as worms eating

  bran(谷糠).

    The researchers will study the worm’s eating habits and digesting system, looking to copy the

  plastic breakdown but on a larger scale. Once the way can be put into practice, it will make a

  revolutionary difference to the disposal of plastic.

    “Solving the issue of plastic pollution is important”, says Wu, a Stanford University

  environmental engineering instructor. After all, our earth is small and landfill space is becoming

  limited with too much garbage waiting to be dealt with, he says.

    About 33-million tons of plastic are thrown away in the United States every year. Plastic

  plates, cups and containers take up 25 percent to 30 percent of space in America’s landfills. One

Styrofoam cup takes more than 1 million years to recycle in a landfill, according to Cleveland

  State University.

  66. What do we know about Styrofoam?

  A. It    can be used to cool drinks.     B. It is a weightless material.

  C. It is harmful when recycled.     D. It is usually used on ships.

  67. What can we infer from the third paragraph?

  A. Mealworms have amazing digesting power.    B. Mealworms are not bad in their nature.

  C. Mealworms can rescue people’s lives.  D. People misunderstood mealworms in the past.

  68. Why will researchers study the worm’s eating habits and digesting system?

  A. To find ways to help mealworms grow larger.

  B. To imitate their ways of breaking down plastic.

  C. To help develop their digesting ability.

  D. To make sure of their safety after eating plastic.

  69. In the future, plastic may be recycled ________.

  A. by raising amounts of mealworms     B. by environmental engineering instructors

  C. using a method inspired by eating mealworms  D. without sending out dangerous pollution

  70. What’s the main idea of this passage?

  A. Styrofoam is widely used in daily life.

  B. Mealworms are genius at eating plastic.

  C. Plastic recycling may be no more a problem.

  D. Plastic can be turned into carbon dioxide.

【回答】

CABDC

知识点：阅读理解

题型：阅读理解