阅读理解

Blue ice cream topped（浇）with black fruit sounds uncommon and not delicious at all. That's the power of colour. It could either make your dinner more delicious or spoil（糟蹋）the whole table. Scientists have found that blue may make people lose appetite（食欲）. 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 want to eat when they see blue？It's all in the mind. People connect the colour of food they see to the food in their memory. But where does one find blue food？There are almost no blue vegetables and no blue meat. So people have an "uncommon" or “strange” feeling about the blue food. Also，people try to keep away from being poisoned（中毒）. For thousands of years，people think that blue，purple and black were “colour warning signs". Foods of these colours are most probably poisonous.

Then what are tasty colours？Scientists say people would like to eat more at the sight of red or colours close to it. So what should go into dishes？You need to think it over before helping your mum with dinner.

【小题1】According to this passage，which food do people usually prefer？

A．Blue vegetables.

B．Purple bread.

C．Red meat.

D．Black fruit.

【小题2】According to this passage，which colour may make people dislike eating？

A．Blue.

B．Green.

C．Red.

D．Yellow.

【小题3】What colours of food are thought to be poisonous？

A．Blue，red and purple.	B．Black，blue and white.
C．Purple，black and green.	D．Black，purple and blue.

【小题4】Which of the following is NOT true？

A．People have found that blue may make people lose appetite.

B．Putting your food in a blue bowl can make you eat less.

C．People usually like the food with dark colours.

D．We never see blue meat.