专题03 阅读理解（第二期）-2022中考英语逆袭冲刺 好题特快专递（浙江专用）

2022中考英语逆袭冲刺 好题特快专递 （浙江专用） 第二期 专题03 阅读理解 （2022·浙江杭州·一模）The webs that spiders build to catch insects seem weak. However, the strength of spider thread is greater than steel (钢铁). Webs can even stand up to very strong storms. In each spider web, some threads are sticky, but some are not. When a spider is moving on the web, it will not step on the sticky threads. After a time the silk will lose its stickiness and become unable to catch insects. Then, spiders usually eat their own web. Now a team of scientists has worked out why the spider web is so strong. It is not just the strength of the thread, but the clever design of the web. “The key to a web’s success is its ability to keep its shape and strength even after some of the threads break,” said scientists at the Massachusetts Institute of Technology (麻省理工学院). The scientists found the thread itself has the ability to become softer or harder. So it can hold different types of heavy things. In tests, scientists used three other strong mat