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1、The lecture (deliver) by the Nobel laureate last week has sparked a heated debate among students. (所给词的适当形式填空)
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2、The novel, main character is a young detective, has won the annual literature award. (用适当的词填空)
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3、This is they call a once-in-a-lifetime opportunity. (用适当的词填空)
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4、The old man, with poor eyesight, tripped a small stone on the dimly-lit sidewalk and almost fell. (用适当的词填空)
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5、The scientist, with I worked on the project, will attend the international conference next month. (用适当的词填空)
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6、The snake, which is considered highly (poison), has been found in the nearby forest. (所给词的适当形式填空)
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7、The reason he was late for the ceremony was that he got stuck in traffic. (用适当的词填空)
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8、The customer filed a (complain) about the poor service at the restaurant. (所给词的适当形式填空)
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9、The exhibition (feature) paintings by Picasso will be held soon. (所给词的适当形式填空)
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10、There were (显著的) differences among women based on age, place of residence,and educational levels. (根据汉语提示单词拼写)
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11、The university (准许进入) only 10% of applicationts this year due to high competition. (根据汉语提示单词拼写)
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12、Two men (宣称) to be police officers went to the plotician's house and took him away. (根据汉语提示单词拼写)
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13、The professor used charts and graphs to（说明)his point clearly. (根据汉语提示单词拼写)
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14、The whole experience was (肯定) more positive than negative. (根据汉语提示单词拼写)
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15、Keeping a proper balance between study and rest keeps us (充满活力的).(根据汉语提示单词拼写)
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16、The (数字) represent a general decline in employment. (根据汉语提示单词拼写)
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17、Her family's support is particularly(珍贵的) to Josie. （根据汉语提示单词拼写）
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18、She (寻求) comfort in music when she faced difficulties. (根据汉语提示单词拼写)
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19、Honesty and kindness are among the most important（美德)in life. (根据汉语提示单词拼写)
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20、The design theory behind a pair of tiny robots may one day find its way into environmental monitoring, as well as search and rescue tasks. Modeled after a water strider (水黾) , an insect, the two robots each weigh in at 8 and 55 milligrams, and may mark the smallest, lightest, and fastest fully functional micro-robots in the world, according to Washington State University (WSU) .
Developed by a team of WSU researchers, the robots' tininess largely relies on a material known as a shape memory alloy (合金) . Although shape memory alloys change form when heated, they can "remember" their original shapes and return to them after cooling. Because of this, the two micro-robots do not require standard motors, and they use light and small ones instead of bulky moving parts.
Both the robots'motors are each made up of two shape memory alloys, allowing them to move their fins as fast as 40 times a second while also lifting over 150 times their weight. "They're very technologically sound. The development of the very lightweight robots opens up new possibilities in micro-robotics," said Conor Trygstad, a material engineering PhD student and study lead author. "Although the robots are impressive when compared to other robots, the pair still fall behind their biological relatives'," Trygstad said. They can currently move at a speed of about six millimeters a second; a water strider, by comparison, speeds along at about a meter per second. For now, the robots also require wired (连线的) power sources, thus seriously preventing any real-world applications for the moment.
Going forward, however, the team plans to copy other small insect species while also creating a new water strider robot which can move at a higher speed. Depending on using small batteries could also greatly increase the robots' areas of use, If the breakthrough designs continue improving, similar micro-robots could one day be employed to monitor hard-to-reach dangerous environments.
(1)、What is the inspiration for the two robots?A、A special monitor. B、The lightest micro robot. C、An insect species. D、A search-and rescue task.(2)、What might Conor Trygstad agree with?A、Both robots can identify sound. B、Both robots need wireless power sources. C、Both robots work better than water striders. D、Both robots have weaknesses besides strengths.(3)、What can be inferred about future versions of these robots?A、They will completely replace biological insects. B、Their speed may approach that of real water striders. C、They will prioritize appearance over functionality. D、Their production costs will make them impractical.(4)、What is the main purpose of the passage?A、To compare robots with water striders. B、To introduce breakthrough micro-robots and their potential. C、To explain how shape memory alloys work. D、To show the limitations of current robotics.