Nocturnal Animals

题目与答案

1. Evolutionary Adaptations

   · Some nocturnal animals lose certain 31_____ over time due to lack of necessity.

   答案：organs

   原文定位：To begin, one of the most notable evolutionary trends among nocturnal species is the loss of certain organs that are no longer needed

   同义替换：「due to lack of necessity」↔「no longer needed」

2. Three-toed Sloth

   · they have a varied 32_____ compared to their three-toed relatives because they face less competition at night.

   答案：diet

   原文定位：Unlike its three-toed counterpart, this species has a far more varied diet. The key reason for this is that it forages primarily at night, which allows it to avoid competing with other animals for food resources

   同义替换：「compared to their three-toed relatives」↔「Unlike its three-toed counterpart」，「face less competition」↔「avoid competing with other animals for food resources」

3. · Their flexible 33_____ allows them to scan their surroundings efficiently.

   答案：head

   原文定位：Another crucial adaptation in two-toed sloths is their highly flexible head, which allows them to observe their environment more effectively

   同义替换：「scan their surroundings」↔「observe their environment」

4. · These sloths adjust their 34_____ depending on environmental conditions.

   答案：temperature

   原文定位：Additionally, these animals possess the ability to regulate their body temperature based on surrounding conditions

   同义替换：「environmental」↔「surrounding」，「adjust」↔「regulate」

5. · The presence of algae in their 35_____ helps them blend into their environment.

   答案：fur

   原文定位：Their fur hosts algae, which give it a greenish tint, allowing them to merge seamlessly with tree foliage

   同义替换：「algae in their fur」↔「fur hosts algae」，「blend into their environment」↔「merge seamlessly with tree foliage」

6. Kiwis and Bats

   · North Island brown kiwis adapted to a nocturnal lifestyle to escape 36_____ .

   答案：eagle

   原文定位：This bird has evolved to be active at night primarily to evade predators, particularly a species of eagle that once posed a significant threat to it

   同义替换：「adapted to a nocturnal lifestyle」↔「evolved to be active at night」，「escape」↔「evade」

7. · Their eyesight lacks the ability to perceive 37_____ but they have an excellent sense of smell.

   答案：colors

   原文定位：Interestingly, kiwis do not rely much on vision as their eyes are poorly adapted for detailed sight, especially when it comes to perceiving colors

   同义替换：「lacks the ability to」↔「poorly adapted for」

8. · The 38_____ laid by kiwis are unusually larger in proportion to their size.

   答案：eggs

   原文定位：Another surprising trait of kiwis is the size of their eggs. When compared to their body proportions, kiwi eggs are exceptionally large

   同义替换：「unusually larger in proportion to their size」↔「exceptionally large compared to their body proportions」

9. · Bats have specialized 39_____ skin for echolocation.

   答案：skin

   原文定位：One of their most remarkable adaptations is the presence of specialized skin on their ears, which enhances their ability to use echolocation

10. · Bats rely on 40_____ to keep their claws secure while sleeping.

    答案：gravity

    原文定位：This is made possible because their claws remain securely hooked onto surfaces due to gravity

    同义替换：「rely on」↔「due to」，「keep their claws secure」↔「claws remain securely hooked onto surfaces」