题型:阅读选择 题类: 难易度:困难
广东省深圳市2022年超常思维竞赛六年级英语复赛真题
A group of Chinese scientists have invented a small type of robotic fish to clean up microplastics in the ocean. The robot's "secret weapon" is a layer (层)of mother-of-pearl. This material comes from clam(蛤蜊)shells. The robots are designed to absorb(吸收) microplastics while moving through the water.
These fish-shaped robots are only 1.5 cm long. They can travel fast underwater. They are made of a soft chemical compound. As they swim along, they pick up microplastics nearby. The tiny pieces then stick to them.
According to the researchers, the robots can take in different kinds of microplastics and even repair themselves when damaged. And if a robot fish is accidentally eaten by a real fish, it could safely digest the material, the team added.
The robots work well, but the scientists still want to improve them. The ideal versions will dive even deeper and remove larger amounts of microplastic waste from deep ocean areas. Besides that, they even say that similar robots could be developed to be placed inside the human body to remove unwanted materials or disease.
【跨文化:不同国家的交通规则】There are different traffic rules in different countries.In China, drivers must drive on the right side of the road. They also need to stop at red lights and give way to walkers at crossings. In the US, the rules are the same.
In England, people drive on the left side of the street. Before crossing the street, people must always look right first and then look left. If someone drives drunk three times in 10years, he can't drive for the next 109 years.
In Germany, there are special(特殊的) traffic lights for walkers and bikes. Drivers must also use headlights(头灯) and taillights(尾灯) when driving in the dark.
In France, drivers must give way to cars coming from the right at the crossing.
Some traffic rules in different countries | ||||||||||||||||||||||||||||||||||||||||||||||
China | Drive on the right side of the road. Drivers should {#blank#}1{#/blank#}at red lights and give way to walkers at crossings. | |||||||||||||||||||||||||||||||||||||||||||||
{#blank#}2{#/blank#} | The rules are the same as those in China. | |||||||||||||||||||||||||||||||||||||||||||||
England | People drive on the {#blank#}3{#/blank#}side of the street. Before crossing the street, people must look right first. | |||||||||||||||||||||||||||||||||||||||||||||
Germany | There are special {#blank#}4{#/blank#}for walkers and bikes. Drivers must use headlights and taillights when driving in the dark. | |||||||||||||||||||||||||||||||||||||||||||||
France | Drivers must give way to cars coming from the right at the {#blank#}5{#/blank#}. |
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