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1、2023-2024江西省高三上学期联考英语试卷
2、江西省高三联考2024英语
3、江西省2024高三联考英语答案
4、江西省第三次大联考2024英语
5、2023-2024江西省高三阶段性考试英语
6、2023-2024江西省高三联考英语试卷
7、江西2024高三四月联考
8、江西省2024年全国第三次联考
9、2024年江西省高三联合考试答案英语
10、2024年江西省高三联合考试

B.Singapore needs to solve the energy problems urgently.C.The radiant system is effective and energy-efficient.D.Singapore is more advanced in modern technology.65.What's the author's attitude towards the prospect of the radiant system?A.Objective.B.Ambiguous.C.Positive.D.CriticalDA simple paper sensor featuring smiley and faces drawn in ultraviolet-sensitive(UV-sensitive,紫外线敏感的)ink has been produced by researchers in an attempt to keep us safe in the sun.Scientists say the different facial expressions appear in sequence as UV exposure increases,offering a low-tech way for people to judge when it is time to cover up.Further,the sensor can respond to varying levels of the different components of UV radiation.While altraviolet-A4 rav(UVA)is thought to cause skin ageing and wrinkles,it is mainly UVB thatcauses sunburn and leads to skin cancer.While Bansal noted weather reports often contain a UV index to give a guide to the strengthof UV radiation,it doesn't tell people whether they are within safe levels of exposure at that time,and it's usually based on the standard for fair skin.Writing in the journal Natufe Communications,Bansal and his colleagues describe how theysought to handle the issue by creating a cheap device based on phosphomolybdic acid(PMA,)This substance turns from colorless to blue in the presence of lactic acid()and UVradiation.The team then used this mixture of lactic acid and PMA as an ink to draw four.invisiblefaces on paper,and used some transparent sheets to create filters()that were put on top ofthe faces.This allowed the researchers to finely adjust the intensity of UV radiation reaching theink so that the faces could change color in sequence as exposure to UV radiation rose from 25%to50%,then 75%,and finally 100%of a"safe"amount.By further adjusting the number of filters for each of the four faces,the team were able toadjust the system to produce different sensors to work for six different skin tones,like dark,fair orolive skin.Bansal said that while these devices were designed using UV light in the laboratory,they are currently being tested in outdoor conditions.The team hope that the sensors will be on themarket in a year,cost about one dollar a piece.66.What is the main function of the simple paper sensor?A.To encourage people to cover up in full sun.B.To remind people to pay attention to UV exposure.C.To tell people the difference between UVA and UVB.D.To inform people of the harm of UV radiation.67.What does the author intend to do in Paragraph 3?A.Introduce the advantages of the sensor.B.Present the safe level of UV exposure.C.Explain the necessity of the sensor to people.D.Provide the tips on preventing UV radiation.高三英语第8页，共10页