Amphibians lay their eggs

试卷相关题目

• 1Losing amphibians means losing

  A.knowledge about fatal human diseases.

  B.knowledge about air and water pollution.

  C.a chance to discover new medicines.

  D.an opportunity to detect poisonous gases.

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• 2When did British gentlemen begin to wear ties regularly、

  A.After the late 19th century.

  B.In the 1630s.

  C.In 1660.

  D.In the late 18th century.

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• 3Who brought the Frenchmen's neckwear to Britain、

  A.Tony Blair.

  B.Charles ll.

  C.Jim Callaghan.

  D.Andrew Turnbull.

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• 4Which of the following is NOT a social occasion、

  A.Going to church.

  B.Going to work in the office.

  C.Staying at home.

  D.Going to a party.

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• 5Why does Blair sometimes show up in a formal event without a tie、

  A.Because he wants to make a show

  B.Because he wants to attract attention.

  C.Because ties are costly.

  D.Because he wants to live in a casual way.

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• 6The arroyo toad is disappearing because

  A.it has been threatened by frogs.

  B.it is losing its habitat.

  C.a disease has been killing its eggs.

  D.it can't bear the cold of winter.

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• 7Coal miners once used the canary bird to detect

  A.poisonous gases.

  B.air pollution.

  C.water leakage.

  D.radiation.

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• 8Scientists think that the decline of amphibians could

  A.cause environmental change.

  B.cause a decline in other kinds of animals.

  C.be a warning signal for human beings.

  D.be a good sign for human beings.

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• 9Belle would be fed some fruit juice if she

  A.grasped the joystick.

  B.moved the joystick to the side of the light.

  C.sat quietly in a special chair.

  D.watched lights on a display panel.

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• 10The wires fixed under Belle's cap were connected to

  A.a plastic box next door.

  B.a computer at Cambridge University,

  C.a box of electronics in the booth.

  D.a box which, in turn, was linked to two computers

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