Tuatara

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题目与答案

1. 28 The two living species of tuatara look alike.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：TRUE

   原文定位：Although the tuatara species appear similar, they have genetic differences

2. 28 Many of the tuatara bones that have been found are millions of years old.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：FALSE

   原文定位：Tuatara bones have been found in many parts of New Zealand. Where dated, they are usually a few hundred to 5,000 years old

3. 29 The tails of male tuatara are a different colour from the tails of female tuatara.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：NOT GIVEN

   原文定位：Males are larger than females, and have more developed spines in the crest along the neck, back and tail

4. 30 There are higher numbers of female hatchlings than males.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：NOT GIVEN

   原文定位：Evidence indicates the gender of tuatara hatchlings is determined by both genetic and environmental factors. It is said that it is more likely for warmer eggs to produce male tuatara, and cooler eggs to produce females

5. 31 The tails of male tuatara are a different colour from the tails of female tuatara.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：NOT GIVEN

   原文定位：Males are larger than females, and have more developed spines in the crest along the neck, back and tail

6. 32 The female tuatara lays eggs in a burrow.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：FALSE

   原文定位：Tuatara mate in late summer, and the female usually lays 6-10 eggs the following spring, in a shallow nest at ground level. She may guard the nest for a few nights, then return to her burrow underground

7. 33 Once they have hatched, young tuatara have to look after themselves.
   • TRUE
   • FALSE
   • NOT GIVEN

   答案：TRUE

   原文定位：The hatchlings receive no parental care and need to find their own food

8. The tuatara

   Lifespan

   ·maximum lifespan unknown

   ·34 many live to at least _____ years old

   答案：80

   原文定位：Their maximum lifespan is not known for certain, but many tuatara have reached 80 years still looking vigorous and healthy

9. Behaviour

   ·35 attack other creatures with their _____

   答案：teeth

   原文定位：Both sexes are territorial, and males aggressively defend their territory by posing and fighting if necessary. Teeth are their main weapons, and a bite can cause serious injury

10. ·36 eat young _____ that live in the same burrows, invertebrates and reptiles

    答案：seabirds

    原文定位：Tuatara are carnivorous, eating invertebrates, lizards and the baby seabirds with which they often share burrows

11. Population

    ·37 abundant until rats were introduced by _____ people

    答案：Polynesian

    原文定位：Tuatara were once widespread and abundant on the New Zealand mainland, but when Polynesian settlers arrived in New Zealand, in about 1250-1300 AD, they brought with them Pacific rats which killed tuatara

12. ·38 by the 1840s, hardly any tuatara found on the _____

    答案：mainland

    原文定位：By the time of European settlement, in the 1840s, tuatara were almost extinct on the New Zealand mainland

13. ·39 islands off the north-eastern coast and in Cook Strait now home to the _____ tuatara

    答案：common

    原文定位：The Brothers Island tuatara survived only on the tiny, 4 hectare North Brother Island, in Cook Strait. The common tuatara lives on islands off the north-eastern coast of New Zealand, and on some islands in Cook Strait

14. ·Brothers Island tuatara found on North Brother Island

    ·40 density of tuatara on Stephens Island is up to _____ tuatara for every hectare

    Protection of the species

    ·tuatara population dropped until rats eradicated from islands

    ·eggs were gathered by the Department of Conservation

    答案：2500

    原文定位：The largest population is on Stephens Island, where there are estimated to be as many as 2,500 per hectare in some places, and a total of at least 30,000