A.learned to live without light

  B.evolved ingenious devices to help them

  C.found ways to supply their own light

  D.developed extremely sensitive eyes

2.According to the selection,some species that live where there is no light have _____.

  A.long,sensitive feelers                     B.luminous fins

  C.enormous owl-like eyes                 D.no actual eyes

3.The deepwater member of the squid family emits a fluid that ______.

  A.looks like ink

  B.is luminous

  C.protects it from its enemies

  D.darkens the water around it

4.It is supposed that about half of the varieties of fish living in the dark depths have _____.

  A.evolved more than one means of creating light

  B.some power of illumination

  C.developed extremely sensitive feelers

  D.almost telescopic eyes

5.Implied but not stated:

  A.Where there is no light,the power of illumination is necessary for survival.

  B.Food-hunting is a difficult problem in the ocean depths.

  C.When a fish is being pursued,it often turns off its light.

  D.All fish in the darkest depths of the ocean have some device to compensate for lack of light.

Passage 2

    Harry Houdini was one of the greatest American entertainers in the theatre this century.He was a man famous for his escapes — from prison cells,from wooden boxes floating in rivers,from locked tanks full of water.

    He appeared in theaters all over Europe and America;crowds came to see the great Houdini and his “ magic ” tricks.

    Of course,his secret wasn't magic or supernatural powers,it was simply strength.He had the ability to move his toes as well as he moved his fingers.He could move his body into almost any position he wanted.

    Houdini started working in the entertainment when he was 17,in 1891.He and his brother Theo performed card tricks in a club in New York.They called themselves the Houdini Brothers.When Harry married in 1894,the brothers ended their partnership.Harry and his wife Bess worked together as magician and assistant.But for a long time they were not very successful.Then Harry performed his first spectacular prison escape,in Chicago in 1898.Harry persuaded a detective to let him try to escape from the prison,and he invited the local newspapermen to watch.It was the publicity that came from this that started Harry Houdini's success.Although he was a clever magician in many other ways,he was-and is-remembered for his escapes.