The 30th Olympic Games took place in London from July to August in 2012. Luckily, Chinese 1 fans could watch the exciting games in 3D on TV.
When you watch 3D movies or TV, you have to wear a(n) 2 pair of glasses. The 3D glasses make the pictures from the screen 3 they are there in the room with you.
3D means having three dimensions(维度): width, height and depth. 3D technology is similar to the way that the human brain and eyes work. 4 the pupils(瞳孔) of a person’s eyes are about 6. 5 cm apart, when we look at something, each eye sees it from a different angle (角度). Our eyes 5 the two pictures to our brain, and the brain puts them together. The small 6 between the picture from the right eye and the picture from the left eye allows us to see depth(立体感).
