What makes scientists doubt about the belief that Megalodon is extinct、

试卷相关题目

• 1The following is commonly known EXCEPT ________.

  A.Megalodon, the largest shark, is extinct

  B.Megalodon is not extinct but just out of reach

  C.Megalodon was 52 feet long and had a jaw 7 or more feet wide

  D.Megalodon lived between several million years ago.

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• 2The woman's action before leaving the store shows that she ________.

  A.was sorry for what she had done

  B.was afraid she would be arrested

  C.decided she didn't want what she had picked up

  D.wanted to prove she had not intended to steal anything

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• 3The woman stealing perfume ________.

  A.guessed what the sputniks were for

  B.was frightened by its shape

  C.could see the camera filming her

  D.knew that the detective had seen her

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• 4The case last October was important because ________ .

  A.the store got the dresses back

  B.the equipment was able to frighten shoplifters

  C.other shops found out about the equipment

  D.the kind of evidence supplied was accepted by court

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• 5The sputniks hanging from the ceiling are intended ________.

  A.to watch the most desirable goods

  B.to make films that can be used as evidence

  C.to frighten shoplifters by their appearance

  D.to be used as evidence against shoplifters

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• 6What was special in their recorded sounds、

  A.To listen for changes in ocean structure.

  B.To listen for changes of ocean currents or volcanic activity.

  C.To Make sure whether there was a giant squid deep in the ocean.

  D.To follow the track of the Soviet warships under water.

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• 7What was special in their recorded sounds、

  A.A strange, powerful animal sound was heard.

  B.A big whale's sound was heard.

  C.A sea monster's sound was hear

  D.D.A giant squid's sound was heard.

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• 8What can be concluded from the passage、

  A.Scientists' discoveries always change people's belief.

  B.There are too many secrets to be discovered.

  C.Megalodon may be still alive deep in the ocean.

  D."Deep sound channel" allows sound waves to travel undisturbed.

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