Deep Sea Discovery

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题目与答案

1. 1 During his 2007 dive, Michiels expected to encounter total darkness at about 15 metres.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：TRUE

   原文定位：In theory, once he reached about 15 metres, he should have been plunged into darkness

   同义替换：「expected」↔「should have been」，「encounter」↔「be plunged into」

2. ·gobies depend on red fluorescence to show their 10_____ .

   答案：location

   原文定位：red-eyed gobies use signals to indicate their location and keep their group together

   同义替换：「show」↔「indicate」

3. ·there are variations in the markings of fish among those 11_____ which are very similar.

   答案：species

   原文定位：And closely related species do not have completely identical markings

   同义替换：「very similar」↔「closely related」，「variations」↔「not completely identical」

4. Other benefits of red fluorescence:

   ·fish cannot easily be seen near backgrounds of 12_____ which give off a red light

   ·helps some fish catch their prey

   答案：corals

   原文定位：During his first dive with the red filter, he noticed corals glow a dark but faint red too. Against this irregular red background, a fish that glows red all over would be hard to distinguish

5. The ability to see red amongst fish:

   ·the only fish proven to have this ability is the 13_____ .

   答案：seahorse

   原文定位：One exception is the seahorse, whose eyes are sensitive to red

6. 2 Michiels could see the red markings on fish without the aid of the red filter.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：TRUE

   原文定位：Even with the red filter removed, Michiels co them out without much trouble once his eyes grew accustomed to the gloom

   同义替换：「without」↔「removed」，「see」↔「make them out」

7. 3 Other divers had assumed they would see fish with red markings.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：FALSE

   原文定位：It seen.. strange that no diver or researcher had spotted all this red before, but as Michiels points out, no one saw it because no one expected to see it

8. 4 All the fish with red markings that Michiels found during his diving expeditions came from the Red Sea.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：NOT GIVEN

   原文定位：he dives in the Red Sea, observing fish life;On that one dive Michiels discovered three fish species with prominent red markings, and has found many others since;have identified some 50 species with red fluorescence

9. 5 Michiels first thought of the possibility that fish could fluoresce while he was in Germany.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：FALSE

   原文定位：At 20 metres down, there had to be some other explanation for the red Michiels was seeing. He suspected fluorescence

10. 6 Michiels remains uncertain as to what creates fluorescence in fish.
    • TRUE
    • FALSE
    • NOT GIVEN

    答案：TRUE

    原文定位：However, Michiels says they are still not sure exactly what is fluorescing

    同义替换：「remains uncertain」↔「still not sure」

11. Michiels's findings

    Michiels has observed:

    ·50 types of fish with red fluorescence in total

    ·markings mainly near the 7_____

    答案：head

    原文定位：The most common markings tend to be on the body towards the head and to a lesser extent around the eyes, and then the fins

    同义替换：「mainly near」↔「tend to be towards」

12. Some of Michiels's beliefs are that:

    ·red fluorescence is used specifically for 8_____ purposes.

    答案：communication

    原文定位：red fluorescence has a very particular function: communication with other members of the species

    同义替换：「used for」↔「function」

13. ·fish, like some animals, use fluorescence to keep 9_____ away.

    答案：enemies

    原文定位：to ward off enemies

    同义替换：「keep away」↔「ward off」