When a weight was applied，only one thread broke—so the spider could do small repairs.Removing up to 10 percent of the threads from various areas made the web not weaker but actually up to 10 percent stronger.

　　Scientists have already been able to show how spider silk is up to five times as strong as the same weight of steel.They found that webs contain two types of silk.The first is stiff and dry and it is used in threads which spread out from the centre.The second is stickier and is referred to as“viscid silk”．This type of line is used to create the spiral(螺旋的)threads which are mainly used to trap food.

　　科学家们已经找到了蜘蛛网拥有如此强大力量的原因。

　　1．The scientists’findings could be helpful for people when they______.

　　A．plan to design a complex web

　　B．want to design stronger materials

　　C．decide to live a life without damage

　　D．hope to make a breakthrough in science

　　解析：细节理解题。根据第一段．..they claim the findings could be used to help design a new generation of super strength materials可知，答案为B项。

　　答案：B

　　2．Which of the following is a characteristic of a spider’s web？A.It can adapt to different loads.

　　B．It can expand itself in the sun.

　　C．It can mend itself if necessary.

【2017届高三（人教版）英语复习全国通用活页作业8】相关文章：

★ 2014届高考英语一轮复习必修1参考答案（外研版）

★ 山西省永济市涑北中学高三英语总复习：美文欣赏（2）（Mary’s Smile）

★ 2016年高考英语复习要做好的六件事

★ 【浙江专用】2014届高考英语一轮复习课时作业(三十九)选修8Unit 4《Pygmalion》

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (24)

★ 四川省2016届高考英语一轮复习课时作业（32） Module 2 Fantasy Literature 外研版选修6

★ 2014届高考英语一轮复习必修4参考答案（外研版）

★ 2017届高考英语二轮复习课时训练：8（含解析）

★ 【外研英语，七省专用】2014《走向高考》一轮总复习（2016春出版）第二部分 学生作业手册：必修三3-3

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (45)