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1、2024年衡水金卷先享题英语四
2、2024衡水金卷先享题分科综合卷英语二
3、2024衡水金卷分科综合卷英语
4、2024衡水金卷先享题全国卷二
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9、衡水金卷先享题分科综合卷2024英语一答案
10、2024衡水金卷先享题答案英语二

they just can't be easily accessed.Now,researchers at MIT have developed a means of getting back memories in mice sufferingfrom Alzheimer's.The method relies on a technique that uses light to control genetically modifiedneurons(转基因神经元).“Currently it is too early to be used in human trials as it involvesinserting light emitting (equipment into the subjects'brains,but the same principles stillapply,"the researchers said."The important point is that this is evidence of the concept.That is,even if a memory seems tobe gone,it is still there.It's a matter of how to get it back,"said the senior researcher SusumuTonegawa.The team took two groups of mice,one genetically engineered to develop Alzheimer's andone healthy.They then placed them into a room and gave them a mild electric shock.All of themice showed fear when put back in an hour later.When placed in the room a third time severaldays later,the Alzheimer's mice acted normally.They had forgotten the shock.The researchers were then able to bring back the memory of the shock by activating the cellsin which the memories were stored.Even when the mice were put into an unfamiliar room,theyshowed fear when the cells associated with the shock were activated."Short-term memories seem to be normal in order of hours.But for long-term memories,theseearly Alzheimer's mice seem to be damaged,"said the lead researcher Dheeraj Roy."Directlyactivating the cells that we believe are holding the memory helps them get it back.This suggeststhat it is indeed an accessible problem to the information,not that they are unable to learn or storethis memory.”28.What do the researchers use to control genetically modified neurons?A.Light.B.Machine.C.Electricity.D.Sound.29.How do the Alzheimer's mice act several days later after the electric shock?A.They are used to living in the new condition.B.They can't be activated by the researchers.C.They can't remember the electric shock and behave as usual.D.They are afraid of the researchers and the electric shock.30.What can we infer from the text?A.Mice can't suffer from the Alzheimer's disease.B.Researchers can recover early memories in mice with Alzheimer's.C.Researchers have used the method in human beingsD.The early Alzheimer's mice can transform their own brain cells.31.What does the author want to express in the text?A.To tell us that mice have no memory.B.To inform us how to prevent the Alzheimer's.C.To introduce the new discovery about the Alzheimer's.D.To show the different behaviors about mice with the Alzheimer's.DScientists found that emotions have different meanings across 2,474 spoken languages,but