Many museums house works of art，and some have valuable pieces that can never be replaced．These museums give the （51）　　（公众）a chance to enjoy their treasures．In the past，people could （52）　　（几乎不）talk when visiting museums．Today，rules aren't as strict，but following some （53）　　 （基本的）rules is still necessary．

Respect（尊重）the space

Keep the museum space clean and throw away all rubbish．

（54）　　（避免）standing against walls and watch where you walk．

No food is allowed．Finish （55）　　（吃）all the food before entering the museum．

Respect the art

No touching the art．Hands，（56）　　（手指）or any body part should never come into contact with the artwork.（Someone thinks a small touch won't hurt the artwork，but imagine how those"touches"would add up with （57）　　 （百）or thousands of visitors every day．）

No flash photos．Bright lights can be （58）　　（有害的）to the art．

Respect other visitors

Complete silence isn't necessary，but talk in a low （59）　　（说话声）．

Stand in lines while buying tickets or waiting．

Follow the rules （60）　　 （在…上面）．It can make everyone's museum experience safe and enjoyable．