微塑料對人類和生態(tài)系統(tǒng)的健康構(gòu)成了嚴(yán)重的威脅。為了清除水中的微塑料顆粒，中國科學(xué)家已經(jīng)開發(fā)出一種機(jī)器魚。

主題語境：人與社會 篇幅：347詞 建議用時：7分鐘

1 A group of Chinese scientists say that they have developed a robotic fish which can remove microplastic particles from water environments. Researchers who are working on the project say that these robots can help to clean up plastic pollution in oceans around the world.

2 Microplastics， pieces of plastic smaller than 5 millimeters， are large in quantity and widely distributed in the oceans. They are easily eaten by marine organisms and transmitted through the food chain， presenting a serious threat to human and ecosystem health.

3 The robotic swimmers， which are made of a soft chemical compound， are about 1.3 centimeters long. According to the researchers， such robots are designed to absorb microplastics while moving through the water.

4 The project was launched by a team at Sichuan University in southwestern China. The researchers said the robots had already performed well in shallow water and they

planned to carry out more tests in deeper waters.

5 The robotic fish were built to target microplastic particles， which are smaller than 5 millimeters. Studies have confirmed that microplastic pollution has been discovered in many natural environments. The material comes from the breakdown of manufactured plastic products and industrial waste.

6 The team said the robots can be controlled by light. Turning “a near?infrared light laser” on and off causes the fish's tail to move back and forth. The robotic fish can swim up to 2.76 body lengths per second. The researchers said this is faster than most similar soft robots.

7 Wang Yuyan was a member of Sichuan University's research team. She said that the small， lightweight robot is currently being used to collect microplastics for research

purposes. But Wang added that the team plans to expand that use so that the robot fish can remove larger amounts of microplastic waste from deep ocean areas.

8 “The fish can take in different kinds of microplastics and even repair itself when damaged，” the researchers said. “And if a robot fish is accidentally eaten by a real fish， the real fish could safely digest the material，” the team added. Wang said similar robots could be developed to be placed inside the human body to remove unwanted materials or diseases.

Reading Check

Detail

1. What was the robotic fish built for？

A. Breaking down chemical materials.

B. Protecting the water resource.

C. Removing plastics effectively.

D. Reducing plastic pollution in oceans.

Detail

2. What can we know about the robotic fish according to the text？

A. It has been used in deeper waters.

B. It is made from edible materials.

C. It has a length of 5 millimeters.

D. It cannot be repaired if breaking down.

Detail

3. How does the robot work？

A. It is controlled by light.

B. It is controlled by sound.

C. It is controlled by a sensor.

D. It is controlled by its tails.

Inference

4. What's the purpose of the text？

A. To introduce a product.

B. To advertise the robot fish.

C. To call on people to protect the ocean.

D. To stress the importance of technology.

Language Study

Ⅰ. Difficult sentence in the text

Researchers who are working on the project say that these robots can help to clean up plastic pollution in oceans around the world. 參與該項(xiàng)目的研究人員表示，這些機(jī)器魚可以幫助清理世界各地海洋中的塑料污染。

【點(diǎn)石成金】本句中，主句的主語是Researchers，主句的謂語動詞是say，who引導(dǎo)的是定語從句，在從句中作主語;that引導(dǎo)的是賓語從句。

Ⅱ. Text?centered chunks

remove...from 從……移除……

clean up 清理

in quantity 大量

be designed to do旨在做……

carry out 實(shí)行;執(zhí)行

up to 多達(dá)

take in 吸收