题型:阅读选择 题类: 难易度:普通
仁爱科普版八年级下学期Unit 5 Topic 2 Section B 练习题
Lin Wenqian is a girl student. When she was on a busy bus last month, she felt someone touching her. She was so afraid.
Zhou Bin, 12, is a boy. He likes to chat on the Internet. But once a stranger said lots of dirty things to him.Zhou was so surprised!
What can students do when this kind of thing happens? Here is some advice from some teachers and students:
Don't be afraid. Ask him or her to stop at once. If he or she doesn't listen, try to turn to others around you and call for help.
Keep calm. Be serious and keep a cool face. Say you don't like it and show you are angry.
If there is no one around, use clever ways. If you only shout or fight to make them angry, it could make things worse! They may take your life. Find excuses (借口) to run away. Say things like you are waiting for your parents or you want to go to the washroom.
How can we tell whether a drink is healthy or not? Recently, Shanghai began to grade drinks with four levels? A, B, C, and D.Level A and B drinks are healthier, while level C and D drinks have much sugar and fat.
Level A | 330ml soda | 0 sugar |
Level B | 330ml sports drink | ≈9g to 24g sugar |
Level C | 250ml energy drink | ≈32g sugar |
Level D | 500ml milk tea | ≈45g to 65g sugar |
The more, the better?
Some students have energy(能量)drinks before doing sports or taking exams. Energy drinks have a lot of sugar and caffeine(咖啡因). They could make one feel more excited. But remember not to drink too much at a time.
Do you know?
The World Health Organization(世界卫生组织)says children should have no more than 25g sugar a day.
Are sports drinks necessary?
·Having sports drinks sometimes is OK. They give us vitamins and minerals(矿物质).
·There is no need for them when you do sports for less than two hours.
·For people with heart problems, it is best not to have sports drinks.
Dawnn Karen, the person who first mentioned the idea of Dopamine(多巴胺) dressing, wrote about looking for joy through dress in her book Dress Your Best Life. Dopamine dressing is so popular in 2023 on the short video platform TikTok(抖音). {#blank#}1{#/blank#}
{#blank#}2{#/blank#} It can influence how we feel. Dawnn Karen started looking for ways to improve dopamine level just during the COVID-19 pandemic.
{#blank#}3{#/blank#} They found that in soccer games, teams with red uniforms always played better than in any other color. Another study showed that wearing green can make people become more creative. Green has also been found to help people relax, because it can remind them of nature. {#blank#}4{#/blank#}
But there are some problems with these scientific studies, as people around the world have different ideas about colors. {#blank#}5{#/blank#}
A. That's what scientists need to study in the future. B. Dopamine is a kind of chemical(化学物质) in our brain. C. One study showed that wearing red can lead to better performance. D. What kind of people like dressing in yellow? E. It encourages people to choose colorful clothes so that they can get more dopamine and feel happier. F. Yellow, the symbol of summer and warmth, can bring people energy and excitement. |
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