PTE阅读写作SWT训练:Pirate蜘蛛以其他蜘蛛为食

随着PTE考生对PTE口语和PTE听力的重视,大家口语和听力的分数得到极大提高,但是PTE阅读渐渐考生们新的难题
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Build a web, catch a fly, wrap the fly in silk, then devour at leisure. This hunting strategy has proven so effective that orb-weaving spiders are one of the most successful groups of animals. They are found in almost every corner of the world and there are more than 3,000 species.

Making a web is a fairly sophisticated ploy. As well as multiple forms of silk and glue, the spider needs to perform a sequence of precise manoeuvres.

But why bother building your own web, when you can just invade somebody else’s and devour the architect?

A clandestine group of spiders known as “pirates” have adopted this nefarious method of nabbing their prey. Their hunting strategies are among the most remarkable in the animal kingdom.

Pirate spiders are members of the spider group that includes all the “orb weavers” – those that make the prototypical, circular webs we are all familiar with – but they do not make webs.

In fact, they have lost the ability. They can still produce silk, which they use to build egg sacs and wrap prey. But they are anatomically incapable of spinning a web. The number of silk “spigots” on their spinnerets is dramatically small compared to their relatives.

Instead, they invade the webs of other spiders, in a bid to lure and then kill the hapless architect. Gently, they pluck the strings of the web, enticing the host to approach.

Once the host spider has ventured close enough, the pirate makes its move.

First, it encloses its duped prey within its two enormous front legs. These are fringed with massive spines, called “macrosetae”, which they use to trap the host within a prison-like basket.

Then, the final move: the pirate bites its prey and uses its fangs to inject a powerful venom that instantly immobilises it.

It is a powerfully effective hunting technique.

devour: v. 毁灭;吞食

ploy: n. 策略,手法

manoeuvres: n. 调动; 演习

clandestine: adj. 秘密的

nefarious: adj. 极坏的;恶毒的

nab: v. 捉住,逮捕

prototypical: adj. 原型的;典型的

sac: n. [生物]液囊;囊

spinnerets: n. 喷丝头

hapless: adj. 倒霉的,不幸的

pluck: v. 摘;拔

entice: v. 诱使

dup: v. 打开;重复

fang: n. 毒牙

venom: n. 毒液

 

 

 

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