3-D films are not new.They first appeared in 1903.The inventors wanted viewers to feel like they were really inside the film they were watching!When you watch a 3-D film，you feel as if the people on the screen are close enough to touch and that the airplane flying at you is flying right off the screen.To watch 3-D films，you may need to wear special glasses.Usually，people buy or borrow the glasses in the cinema.But have you ever thought of making one pair by yourself？
   Here are tips for making your own 3-D glasses.

①Get some card board.Cut out the shape of glasses.Make sure you can see through each hole when you hold it up to your eyes. ②Get some red and light blue acetate（醋酸透明塑胶片）. ③Glue the blue acetate on the right hole and the red on the left one.

Next time when you go to watch a 3-D film，don't forget to take your own handmade glasses!
（1）3-D films were invented to

D

D

.
A.make the airplane fly right off the Screen
B.make viewers touch the people on the screen
C.make the people on the screen closer to viewers
D.make viewers feel like they were really inside the film
（2）According to the passage，our own 3-D glasses are made up of

B

B

.
①glass②card board③acetate④paper
A.①②
B.②③
C.①③
D.③④
（3）The passage probably comes from

D

D

.
A.a storybook
B.a film poster
C.a news report
D.a science magazine