课时作业（十九）Fit for life-【学易优】2024年高考英语一轮总复习课时分层突破（牛津译林版）

课时作业 课时作业（十九）Fit for life I,阅读理解 "This study not only helps us better under- 1 stand what happens in brain developing when ado- (2023·南京市考前训练题（一）) lescents are exposed to alcohol but more impor- A new gene editing procedure may provide tantly,gives us hope that one day we will have doctors with a potential cure for both anxiety and effective treatments for anxiety and alcohol use alcohol use disorders.Researchers say the treat- disorder,"Pandey reports. ment acts like a "factory reset"for the patient's 1.What does the underlined word "that"refer to in brain. Paragraph 2? Previous studies by the same team found that A.The consumption of alcohol in adulthood. too much drinking during adolescence changes a B.The decrease of chemistry in the amygdala. person's brain chemistry in the region of the Are C.The control of emotions in one's adolescence. gene,by decreasing Arc expression in the amygdala D.The change of brain chemistry in Arc gene region. (杏仁核)affecting how people process emotions. 2.How does the new study get the results? When that occurs,it makes someone more likely to A.By using chemical tools. suffer from mental health issues and use alcohol B.By analyzing brain structures. too much during adulthood. C.By referring to previous studies. The new study focused on reprogramming D.By doing experiments on animals. such changes to the brain at a genetic level."It 3.According to Subhash Pandey, provides evidence that gene editing is a potential A.acetylation may relieve alcohol use disorder antidote(解毒剂)to these effects,,offering a kind! B.gene editing has a wide use in brain development of factory reset for the brain,if you will,"says C.gene editing can save patients from chemical poi- Subhash Pandey,study senior author. sons Using the gene-editing tool CRISPR-dCas9, D.methylation may contribute to the manage- the team controlled the acetylation(乙酰化)and ment of emotions methylation(甲基化)processes in the Arc gene of 4.What may be the purpose of the research? lab ra