3. What can we infer from the last paragraph?

　　A. 3D food printing will replace traditional cooking.

　　B. The future of 3D food printing is uncertain.

　　C. It would hurt our tradition of food culture.

　　D. 3D food printing would be a failure.

　　4. Which of the following can be the best title for the text?

　　A. 3D food "printing": coming to the kitchen

　　B. Can 3D printing create everything?

　　C. 3D-printing food will be in fashion!

　　D. The disadvantage of 3D food printing

　　If a woman has an extra piece of cake, don't blame it on greed, blame it on her brain.

　　Scientists have found that women's brains react to food very differently--and much more strongly--than men's. Academics found that decades of dieting pressure on women and advertising have programmed certain parts of the female brain to react strongly when faced with any kind of food. Men, on the other hand, are not usually as obsessive (着迷的) about what they eat.

　　Dr. Rudolf Uher and his colleagues at the Institute of Psychiatry in King's College London used brain scanning technology, known as functional magnetic resonance imaging (FMRI), to look at the brains of eighteen men and women.

　　The volunteers were given images of food to look at, as well as food to taste. Their brain reactions were observed by the scientists.

　　They found that the female brains reacted much more strongly than those of males.

　　The same reaction did not happen when they were shown non-food images. The team believe this means women think more about food than men tend to do.

　　Dr. Uher said, "This could be related to biological differences between men and women. But the more likely explanation is that women have a more complicated reaction to food because of social pressure.

　　Professor Carey Cooper, psychology and health professor at Lancaster University, said, "For centuries women have had a providing role--preparing and cooking food for their families. And it is part of that rule to make sure the food is safe. They will therefore be much more sensitive to food than men are, and I would not be surprised if that was now built into their DNA. If the female brain reacts to food because it historically has developed neural (神经的) pathways to do this, then food will be the way they express their stress. Food actually, is a comfort for women."

　　But other experts have said that more research must be done before the results can be proved. American scientist Angelo del Parigi of the John B. Pierce Laboratory in New Haven, Connecticut, said, "Looking at an FMRI alone cannot make sure whether the stronger reaction in women is due to innate (天生的) differences or a learned process."

　　5. Dr. Uher and his colleagues carried out the research by comparing _______.

　　A. FMRI's effectiveness on women and men

　　B. volunteers' reaction to different kinds of food

　　C. volunteers' reaction to food before and after meals

　　D. women's and men's reaction to different images

　　6. In Dr. Uher's opinion, women react more strongly to food than men most probably because they are _______.

　　A. told to do so for a long time

　　B. influenced by advertisements

　　C. forced by powerful social influences

　　D. born to do so due to biological reasons

　　7. According to Professor Carey Cooper, women _______.

　　A. turn to food when they feel sad

B. are stressed because of food safety