unit 1 the world of our senses -Welcome to the unit课件（牛津译林版模块3）.ppt

* Unit 1 The world of our senses 1. With what do we see and hear? 2. How do we know whether a dish is delicious? How do we know that a flower has a pleasant smell? 3. What do we do when we want to know whether the water in the basin is hot or cold? touch/feel smell taste hear sight eyes see the sense with We do ears hearing tongue/taste buds taste nose smell hands/feet/skin touch A person who cannot see is _____ and someone who cannot hear is _____. blind deaf What would happen if you lost one or two of your senses? Read the passage on page 1 and answer. 1. Do you know how blind people can read? They can read by touching raised dots which represent numbers and letters. This system is called _______. Braille 2. How do the deaf communicate with each other? They use body language or sign language. However, even if we have good senses, they can still confuse us. Look at the following pictures and try to answer the questions. What do you see in the picture? What can you see in this picture? Do you see a vase or two faces? If you look at the white part, you can see a vase. If you look at the black part, you can see two faces. Which is longer? Actually the two lines are of the same length. How can you find out whether the two lines are of the same length? We can use a ruler to measure the two lines. Or you can use two pieces of paper to cover both ends of the two lines. Are these lines straight? How can you prove that the two lines are straight? You can place a ruler next to the line. You can also use a ruler to draw more straight lines which run parallel to the two lines. Are these pillars round or quadrate? Move or not? Count the black dots. Is the woman real or in the jigsaw? Why are people misled by their own eyes? Because the background or other lines confuse the eyes. Also, what we expect to see can change what we see. Actually it’s more the brain that is confused than the eyes. 1. Do you use one of your senses m