4B 7 8 4.5 Listen to the solution to the puzzle in 6. What is the answer? Is the answer a surprise?


In pairs. Student A read the puzzles below. Student B go to page 190. When you are ready, explain the puzzle to your partner. Help each other find the answer.


1


LIGHT BULBS You are alone in a new house. You are


standing next to three light switches on the ground floor. You want to find out which switch turns on the light in the basement. You cannot see any wires, the light in the basement, or the other two lights which are on the top floor. You can only visit the basement once. What do you do?


2


CATCHING


A BALL You throw a ball as hard as you can and make it stop and return to you without bouncing it off a wall or anything similar. The ball has nothing attached to it. How do you catch it?


60


English for the 21st


Century • Unit 4


See page 178 for answers.


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