The company says its users have reported clearer and quicker thinking, improved memory for names, numbers, directions, increased alertness, awareness, mood, and better concentration at work or while driving.

　　Lumosity is currently offering a free trial of their program to new users so that you can see how well it works before you decide to subscribe.

　　1. Many middle-aged people’s memory is decreasing because.

　　A. their brains are injured

　　B. their brains don’t have enough oxygen

　　C. their brains aren’t supplied with enough blood

　　D. their brains are growing old

　　2. What’s the main idea of the fourth paragraph?

　　A. Our muscles need to exercise.

　　B. Scientists believe our brain needs improving by running.

　　C. Scientists believe proper mental practice can improve intelligence.

　　D. Our muscles have connections with our brain.

　　3. Which of the following is NOT the function of Lumosity?

　　A. Improving your memory and attention.

　　B. Increasing your resistance for diseases.

　　C. Recording your advance and offering feedback in detail on your improvement.

　　D. Modifying the games you play to build on the strengths you are developing.

　　4. If you want to order Lumosity, what should you do first?

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