题型:阅读表达 题类: 难易度:普通
河北省沧州市南皮县2024年中考二模英语试题
Scientists have created an underwater robot that can tell different kinds of pollution at the bottom of the sea. The robot will help clean-up teams find the rubbish and give them a chance to remove the things that can cause the most harm to the environment.
The robot, which weighs nearly 100 pounds and uses special cameras to take 3D pictures, was created by a team at Skarv Technologies.
The researchers put their work to the test at a lake. First, the robot swam up and down in rows at about six feet above the lake bed, collecting information with the special cameras. Then a computer turned the information into a map, which showed different kinds of rubbish in different colors.
A total of 3, 894 objects were found in the lake and divided into different kinds. "There's too much rubbish," a member of the Skarv Technologies team, Fossum, told New Scientist."There's somewhere around 165 to 300 tons of rubbish in the lake."
It is not always possible for clean-up teams to remove all the rubbish they find underwater, because there is something more important to clean. The robot will be used to help the teams find the most harmful things. And the teams spend their time, efforts and money in removing them first. "Glass isn't really polluting," said Fossum. "So if you know there's an area with a lot of glass, you probably can ignore (忽视) that. Instead, you should pay more attention to the things that are putting heavy metals (金属) into the environment."
Besides helping to check the pollution, the robot can also tell the positions of animals in the sea. It can avoid hurting the animals while the clean-up teams remove the rubbish.
own make child themselves small job pay after or around |
Most American families are {#blank#}1{#/blank#} than the ones in other countries. Most American families have one or two {#blank#}2{#/blank#}.
Children in the US will leave their parents' home {#blank#}3{#/blank#} they grow up. They usually live far from their parents because they want to find good {#blank#}4{#/blank#}. They often write to their parents {#blank#}5{#/blank#} telephone them. And they often go to visit their parents on holidays.
Parents usually let their children choose their {#blank#}6{#/blank#} jobs. Americans think it is important for young people to decide their lives by {#blank#}7{#/blank#}.
Many people ask the children to do some work {#blank#}8{#/blank#} their house. And in many families, the parents {#blank#}9{#/blank#} their children for doing some housework so that(为了) they can learn how to {#blank#}10{#/blank#} money for their own use.
试题篮