Modern humans have a hard time controlling their desire to eat. Often you eat not because you are hungry, but because you are affected by other things. How much you eat is strongly affected by how much those around you eat. People eating alone eat least. People eating with one other person eat 35 percent more than they do at home. People dining in a party of four eat 75 percent more. Eating with overweight friends? You’ll eat more. Is your waitress overweight? You’ll eat more. Wide variety of food? You’ll eat more.
Plates can decide how sweet dessert tastes. If people ate it off a paper plate, they’d say, “This is good.” If they ate it off a fancy silver plate, they would say, “This is the greatest cake I’ve eaten in my entire life.”
Your knowledge about what makes food good or bad also affects how much you eat. You tend to eat more when you think the food is good, and less when you think it is bad. So Grandma’s cookies always taste better than other cookies. “Good food” even has a “health halo (光环) effect”. If we are eating something healthy, we feel that everything in that meal is healthy. Due 
to this, people often believe that a cheese cake with a salad has fewer calories than the cheese cake alone. That’s perhaps also why eating organic food might turn you into an annoying guy. Your brain may use anything that makes you feel good about your own morality to excuse your immoral behavior.
Food and hunger affect your judgment too. Hungry judges give more serious sentences. Kids who don’t eat breakfast behave worse than kids who eat their breakfast. People who have low blood sugar are more likely than the average person to have trouble concentrating and controlling their unpleasant emotions.
32. What is mentioned as a cause of overeating?
A. Suffering from great loneliness.
B. Being served by a helpful waitress.
C. Being treated to high quality food.
D. Eating with many friends.
33. According to the passage, an annoying person may be one who ______.
A. finds an excuse for eating more
B. is crazy about the quality of plates
C. competes with others in making cookies
D. teaches people to stick to morality
34. According to the passage, people are more likely to make a bad judgment when ______.
A. they don’t feel hungry
B. they aren’t overweight
C. they have low blood sugar
D. they know little about food
35. What would be the best title for the passage?
A. When Can’t We Go on a Diet?
B. What Affects Eating?
C. How to Make Good Food
D. Where to Find Safe Food