[衡中同卷]2024届信息卷(一)英语试题

[衡中同卷]2024届信息卷(一)英语试题正在持续更新，目前答案城为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

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1、2024年衡中同卷信息卷英语
2、衡中同卷2024年信息卷
3、2024年衡中同卷信息卷新高考
4、2024衡中同卷先享题信息卷二
5、2024年衡水信息卷
6、2024年衡中同卷信息卷全国一卷
7、2024衡中同卷英语答案
8、2024衡中同卷下学期一调
9、2023-2024衡中同卷高三期中英语
10、2024衡中同卷单元卷英语答案

DrFiddaman wondered whtr it n-foundiren()of ae structuralchanges.To find out,he and his colleagues got their hands on nearly 1,000 chicken bones fromancient times across Europe and Asia,some of them up to 2000 years old.Sections,of DNA fromthese remains were mapped on to the ones of today's virus.As the authors pieced together the sets of genes of ancient MDV,however,they noticed thatthe genes were arranged identically to those in modern species.It suggests that the increasedvirulence resulted not from large structural changes,but from point mutations()In particular,changes had occurred in the arrangement of a gene called MEQ,which has an essential role intumour（肿瘤)formation.This discovery suggests that the ancient MDV may o have been able tocause tumours.To testthis assumption,Dr Fiddaman followed up with a daring experiment.He made the ancient form of theMEQ gene and shoot it into living chicken cells It did not turn on any of the genes associated withtumour formation.In comparison,a modem MEQ gene quickly showed its tendency to cause tumours.By combining ancient and modern genetic biology,the methods pioneered in the paper revealhow,and more importantly why,any virus mutates.That could help scientists tackle other virusesthat pull on the purse-strings of farmers-by designing new vaccines(疫苗)，for instance一oreven to work out how to prevent another global pandemic.8.What is widely acknowledged about the revival of an ancient virus?A.It is a challenging task.B.It reveals the virus evolution.C.It means a disaster for humans.D.It helps people fight diseases.9.What caused the virulence change of MDV?A.Point mutations in MEQ.B.The occurrance of a new gene.C.The reproduction of the ancient MDV.D.Large structural changes in modern.species.10.How did Dr Fiddaman test the assumption?A.By investigating a typical case.B.By conducting a field survey.C.By studying the related theories,D.By doing a comparative experiment.11.What can we infer from the last paragraph?A.Viruses weaken gradually when they mutate.B.The finding throws light on handling other viruses.C.A global pandemic requires a world effort to end it.D.Farmers will face more complex challenges than before.英语试题第4页（共10页）