22、    Have you ever seen blue ice cream topped with black fruits? That sounds foreign and not delicious at all! That’s the power of colors．It could either make your dinner more delicious or spoil(搞糟)the whole table．

    Scientists have found that blue may make people lose appetite．If you don’t want to eat too much at your classmate’s birthday party，put your cake on a blue plate．You’ll stop eating soon．

    Why is it that people don’t feel like eating when they see blue? It’s all in their mind．

    People relate the color of food they see with food in their memory．But where does one find blue food? There are almost no blue leafy vegetables and no blue meat．So people get a “foreign” or “strange” feeling about the food itself．

    Also，people naturally try to avoid being poisoned(中毒)．For thousands of years，blue．purple and black were “color warning signs”．Foods of these colors are most probably poisonous．

    Then what are tasty colors? Scientists say people feel like eating more when they see red and colors close to it．These fire people’s hunger neurons(神经元)and make the blood run faster．

    So what should go into dishes? You need to think it over before helping your mum with dinner．

1．In Chinese，the underlined word “lose appetite” is _____________________________．

2．If you put your food on a blue plate，you’ll __________________________．

3．People think that __________________________ are dangerous signs．

4．People may eat more when __________________________ because they fire people’s neurons and make the blood run faster．

5．The title of this massage should be __________________________．