高考英語復(fù)習(xí)備考：同源高考-修復(fù)師讓化石“活”了起來等3則

1、高考英語復(fù)習(xí)備考：同源高考一修復(fù)師讓化石“活” 了起來等3那么修復(fù)師讓化石“活” 了起來化石被發(fā)現(xiàn)時(shí)通常被包裹在層層的巖石中，很少有人能認(rèn)出它們是什么。修復(fù)師必須 移除周圍的積物，才能讓古老的生物盡可能呈現(xiàn)出最原始的狀態(tài)。當(dāng)然，這需要修復(fù)師們 極大的專注和耐心。Restorer Luo Yongming, 51， sits unmoving for almost an hour, staring into the microscope as he uses a pneumatic pen on a crinoids fossil. Crinoids are a family of marine

2、 animals that still exist today as starfish and sea urchins, and the part Luo is cleaning is only 3 to 4 centimeters long. For most people, the process is repetitive and boring, but not for Luo. Touching species from ancient times and trying to restore them to their original states is like talking t

3、o history and preserving ancestral memories. The more I restore, the more I feel the magic, he said.When Luo was young, he played in the mountains around the factory where his father worked. He found many stones containing fossilized insects, which first aroused his interest. He later studied mining

4、 at college and then joined a geological prospecting team after graduation.In 1998, a friend brought a crinoids fossil for restoration to the office next to Luos at the geological investigation research institute. Seeing the elderly researchers wearing reading glasses and trembling as they handled t

5、he fossil, Luo offered to help. 4 trembling是seeing的賓語補(bǔ)足語。II. Text-centered chunksstare into凝視;注視offer to do主動(dòng)去做take a break 休息一下新型智能義肢為方便缺失手臂的殘疾人的生活，上海交大研究人員研發(fā)出了一款技術(shù)先進(jìn)的義肢。Gu Guoying and his colleagues at Shanghai Jiao Tong University, in China, have just come up with what looks to be a significant a

6、dvancean affordable prosthetic hand that not only responds like a real one to signals from the wearers brain, but is also able to signal back to the brain what it is touching and doing.The whole hand is covered with a flexible elastomeric （彈性體）layer to imitate skin and is attached to the users resid

7、ual limb. In contrast to current models, which are electrically powered, the new prosthetic hand is powered by a compressed air pump. This reduces its weight below 300 gramshalf that of some current models.The hand uses similar signal processing algorithms （算法）to other prosthetics on the market. The

8、 big advance is that it does not require invasive surgery or electronic implants into the residual limb to communicate with the users brain. Sensors on the skin record electrical signals from the remaining arm muscles. The signals then are interpreted by pattern recognition software that sends appro

9、priate commands to the pump to move the artificial hand. Meanwhile, other signals travel in the opposite direction from sensors in the hands fingertips to nerves in the arm, from which they are relayed to the brain and provide a sense of touch. The result is something which responds like a hand and

10、feels like one to the user.Dr Gu and his colleagues compared the efficacy of their invention with that of existing models using tests borrowed from research into strokes and spinal cord injuries. These included writing, grasping and lifting objects, and lifting food to the mouth. Normally, they foun

11、d it worked betterparticularly for delicate tasks like handling fragile objects, petting a cat and shaking hands.The other advantage of Dr Gu and his colleagues invention is that it is cheap. The components it is made from cost about $500. Existing models may sell for $10, 000 or more. If it goes in

12、to production, that will permit the transformation of many more of the lives of the people who have lost a hand, or were born without one.Reading checkWhat makes the prosthetic hand an advance?A. Its shape. B. Its functions.C. Its structure. D. Its skin.Whats the advantage of the power system of the

13、 new hand?It weighs less.Ifs more powerful.It costs less.D. Its more energy-efficient.What does the underlined word “residual” in paragraph 2 probably mean?A. Injured. B. Remaining.C. Missing. D. Artificial.What can we infer from the last paragraph?We can buy the new prosthetic hand for about $500.T

14、he new prosthetic hand is not available on the market at present.Disabled people have benefited a lot from the new product.The new invention is not expensive.Language StudyDifficult sentence in the textMeanwhile, other signals travel in the opposite direction from sensors in the hands fingertips to

15、nerves in the arm, from which they are relayed to the brain and provide a sense of touch.與此同時(shí)，其他信號那么以相反的方向從指尖上的傳感器傳到手臂的神經(jīng)中，再從那里 傳到大腦，從而產(chǎn)生觸覺。智能繃帶人們在處理傷口的時(shí)候，難免會(huì)因碰及傷口而造成疼痛。新型智能繃帶可以防止這種 情況的發(fā)生，給傷者帶來福音。How can doctors make sure a dressed wound is healing without taking off the ban d age? This is a difficu

16、lt problem, because removing a bandage can damage the healin g process. Technology presented in a new study could help.This new smart bandage contains a sensor that can sensitively measure wound moi s ture levels and then transmit the data to a nearby smartphone, without requiring doct ors to remove

17、 the bandage. By changing the geometry and materials in the bandage, u sers may be able to adjust it to suit different types of wounds. The technology could help doc tors to monitor wounds more easily and successfully.Chronic wounds can be a source of significant suffering and disability for patient

18、s wh o experience them. Getting such wounds to heal is tricky and there are many factors that can affect wound healing. However, one of the most important is moisture levels. If the wound is too dry, the tissue can become dry; if the wound is too wet, it can become white and wrinkly. However, if a d

19、octor wants to check the moisture levels of a wound ,then he or she needs to remove the bandage, potentially damaging the delicate hea ling tissue. These issues have inspired this latest smart bandage.The choice of materials was a challenge, so researchers applied a special material onto a gauze （紗布

20、）using a technique called screen printing, and then connected the gauze with commercially available bandage materials. The idea is that changes in the moisture levels of the wound cause a change in an electronic signal measured by the sensor.To test their bandages, the researchers exposed them to ar

21、tificial wound liquid, a nd also tested different bandage materials and shapes. They found that the bandage wa s highly sensitive, providing different readings in different conditions, suggesting it co uld be a valuable tool in wound management.“We developed a range of bandages with various layers a

22、nd different absorption pro perties and characteristics, said Dr Luca Toscanini, one of the researchers. The ide a is that each type of wound could have its own appropriate dressing. However, we will need to further perfect the sensor geometry and determine the appropriate sensor value s for the bes

23、t healing before we can apply our technology to various types of wounds.”What does paragraph 2 mainly talk about the smart bandage?Its popularity.Its wide application.Its working mechanism.Its complex structure.Whafs the key factor that influences wound healing?The applied medicine.The function of the tissue.The degree of suffering.The wounds moisture levels.How can we describe the smart bandage?A. Green. B. Firm.C. Convenient. D. Flexible.What can we infer from what Dr Luca Possanzini said in the last paragraph?There is a variety of bandages availa