The red king crab

文章大意

雅思听力Part4介绍红帝王蟹在北方海域的出现与影响：渔民发现其出现在从未记录过的地点，追踪显示它们来自更南区域；蟹群增多导致章鱼明显减少；港口常见其厚重粗糙的蜕壳碎片；幼蟹栖息在浅水湾躲避天敌，冬季迁往更深更暗水域，给监测带来困难。

题目与答案

1. Introduction

   ·31 The Red King Crab is migrating into European waters from the far _____ .

   答案：south

   原文定位：Tracking devices placed on several individuals revealed they originally traveled from an area located further south, although the reasons for leaving that region are still debated

   同义替换：「is migrating into」↔「originally traveled from」，「from the far」↔「from an area located further」

2. ·32 Its rapid spread threatens local marine species such as _____ which it preys on.

   答案：crabs

   原文定位：Along with the shift in location, one worrying trend is the noticeable drop in octopuses, which disappear quickly whenever the crabs population increases

   同义替换：「threatens」↔「the noticeable drop in;disappear quickly」，「local marine species」↔「octopuses」，「which it preys on」↔「which disappear quickly whenever the crab population increases」

3. Physical characteristics

   ·33 The Red King Crab has a deep red _____ that develops after several molts.

   答案：spot

   原文定位：Guides say visitors often ask why these clever animals are becoming harder to spot;Moving on, people who work at the harbor sometimes find discarded pieces of its shell, usually washed up after storms. These fragments feel surprisingly dense when handled, much heavier than most expect.

   同义替换：「a deep red」↔「the texture is so rugged;fragments feel surprisingly dense」

4. ·34 Juvenile crabs often remain in _____ waters where predators are fewer.

   答案：shallow

   原文定位：In addition to this, younger crabs tend to remain in shallow inlets because these places offer hiding spots from larger predators

   同义替换：「Juvenile」↔「younger」，「waters」↔「inlets」

5. Migration behaviour

   ·35 When travelling in large groups, the crabs damage long stretches of _____ .

   答案：coastline

   原文定位：When we look at their movement patterns, in some northern villages, people have noticed long tracks along the water's edge after large groups have passed through. These patterns often appear on exposed coastlines, especially in places where tides are strong. Photographers sometimes wait for these rare gatherings to capture unusual images

   同义替换：「travelling」↔「passed through」，「damage long stretches of」↔「long tracks along the water's edge」

6. ·36 During _____, they they tend to move into deeper water.

   答案：winter

   原文定位：As winter approaches, the crabs usually shift into darker, deeper waters where conditions are more stable

   同义替换：「move」↔「shift」，「During」↔「As;approaches」

7. Impact on people

   ·37 Fishermen complain that their _____ are frequently damaged.

   答案：nets

   原文定位：One recurring issue involves the nets, which often return in a condition that requires extra time to sort out

   同义替换：「Fishermen」↔「crews」，「complain that」↔「One recurring issue involves」，「frequently」↔「often」

8. ·38 Some communities are concerned about the effect on their local _____ .

   答案：economy

   原文定位：Some believe these shifts could eventually reach the wider economy, though no one agrees on what that outcome might look like

9. Management and control

   ·39 In the 1960s, Soviet _____ intentionally introduced the Red King Crab to boost fishery production.

   答案：engineers

   原文定位：According to those notes, a group of engineers handled the practical side of the initiative during its early stages

   同义替换：「In the 1960s」↔「decades ago;during its early stages」，「intentionally introduced」↔「a carefully organized operation that introduced」

10. ·40 Today, environmental _____ warn that its ecological impact may be greater than expected.

    答案：scientists

    原文定位：A number of scientists argue that some surrounding habitats may struggle if certain trends continue

    同义替换：「Today」↔「In recent years」，「warn」↔「argue」，「its ecological impact」↔「some surrounding habitats may struggle」，「may be greater than expected」↔「if certain trends continue」