.

　　A. cause the brain to fix memories

　　B. stop people remembering bad experiences

　　C. prevent body producing certain chemicals

　　D. wipe out the emotional effects of memories

　　68. We can infer from the passage that

　　.

　　A. experts are not sure about the effects of the pills.

　　B. the pill will certainly stop people's emotional memories

　　C. taking the pill will do harm to people's physical health

　　D. the pill has already been produced and used by the public America

　　69. which of the following does Rebecca Dresser agree with in the last paragraph?

　　A. some memories can ruin people's lives.

　　B. people want to get rid of bad memories.

　　C. experiencing bad events makes us different from others.

　　D. the pill will reduce people's sufferings from bad memories.

　　70. You may probably read the passage in

　　A. a guidebook

　　B. a textbook

　　C. a medical magazine

　　D. a science fiction

　　D

　　Ask someone what they have done to help the environment recently and they will almost certainly mention recycling. Recycling in the home is very important of course. However, being forced to recycle often means we already have more material than we need. We are dealing with the results of that over-consumption in the greenest way possible, but it would be far better if we did not need to bring so much material home in the first place.

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