刚才那问题Blue ice cream topped with Black fruit? Sounds foreign

刚才那问题
Blue ice cream topped with Black fruit? Sounds foreign and not delicious at all! That’s the power of colour. It could either make your dinner more delicious or spoil 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 the mind.
People relate the colour 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. For thousands of years blue, purple and black were “colour warning signs”. Foods of these colours are most probably poisonous.
Then what are tasty colours? Scientists say people feel like eating more at the sight of red and colours close to it. These fire people’s hunger neurons 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、The underlined word “ lose appetite” means _________.
A．want to eat moreB．feel hungry
C．feel thirsty D．don’t want to eat
（ ）2、If you put your food on a black plate, you’ll _________.
A．eat it quicklyB．feel sadC．stop eatingD．feel happy
（ ）3、People don’t like blue foods because_________
A．most of them are poisonousB．the are ugly
C．they are foreignD．we don’t know the reason
（ ）4、The story mainly tells us_________
A．blue, black and purple foods are harmful
B．we should avoid eating poisonous food
C．why people like and dislike some certain colours of food
D．how to help mother make food