题目内容：

Imagine if Spider­Man came down from the ceiling to save Yao Ming or Shaquille O'Neal every time they injured their ligaments(韧带)on court.Though this ____ will have to remain a daydream，spider silk may really be able to cure their ____，scientists say.

Thought to be the strongest ____ fiber on the planet，spider silk could be used to rebuild injured ligaments.Randolph Lewis at the University of Wyoming in Laramine has been ____ the idea.

Spider silk has interested scientists for centuries.A(n)____ European folk story at least 2,000 years old tells of the possible medical ____ of spider webs.It said they could help in fighting infections，stopping bleeding and healing wounds.

Researches have found no ____ so far that spider webs can kill germs.But studies on animals have shown that spider silk helps ____ the rejection of medical implants.So Lewis' lab and others are changing spider silk into fibers that they hope might be ____ in medicine.

Researchers have found that spider webs could be used to rebuild ligaments ____ in one of the world's common knee injuries.“We're also ____ spider silk in artificial tendons(腱)．” Lewis said.

Scientists are also ____ spider silk to be used for stitching up(缝合)wounds which will help them heal without scarring(伤痕)．

1.A.hope        B．idea          C．expectation  D．opinion

2.A.wounds      B．diseases      C．colds        D．patients

3.A.man­made    B．valuable      C．natural    D．chemical

4.A.working on  B．carrying out  C．thinking of D．laughing at

5.A.terrible    B．ancient       C．funny        D．unbelievable

6.A.care        B．research      C．value        D．examination

7.A.evidence    B．value         C．experience   D．sense

8.A.reduce      B．increase      C．prevent      D．produce

9.A.helpless  B．useful        C．harmful      D．important

10.A.ruined   B．disabled      C．born        D．damaged

11.A.looking at B．looking after C．looking into D．looking over

12.A.proving  B．developing    C．helping     D．training