首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Americans are the first to apply the gene-editing technology. B、Americans are all celebrating the improvement in gene-editing.
A、Americans are the first to apply the gene-editing technology. B、Americans are all celebrating the improvement in gene-editing.
admin
2022-08-21
29
问题
A public opinion study says that most Americans would accept the use of gene-editing technology to create babies who are protected from some diseases. But the same study finds that Americans do not support changing the genetic structure, or DNA, of children so that they are faster, taller or more intelligent. The research was carried out by the Associated Press-NORC Center for Public Affairs Research. The opinion study suggests that many people are concerned about what gene-editing means for the future. More than 1000 people were questioned in the study. The researchers said Americans value the medical promise of technology that could change the genetic qualities human parents pass on to their children. But they worry whether it will be used in a moral way.
Gene editing takes out a part of DNA to remove, replace or repair a gene. Changes to adult cells only affect the person being treated. But editing genes in eggs, sperm or embryos can change the resulting child in ways that can be passed to future generations. Because of its important effects, international science guidelines say gene-editing should not yet be tested in human pregnancies. Scientists say more laboratory research is needed to prove whether or not it is safe. Dr. Robert Klitzman studies biological research rules. He noted that, if fertility clinics start to edit the genes of embryos, there will be hard choices to make about what conditions can be changed. What if scientists could identify genes involved with depression or autism or high body weight? Would they be acceptable to edit? "It’s one thing to look at the extremes of fatal diseases versus cosmetic things, but in the middle are going to be these very different issues, " Klitzman said.
More Americans oppose than approve of government support for testing gene-editing technology on human embryos. About 25 percent of them have no opinion. Jaron Keener, a Pittsburgh museum worker, said that he opposes the research because he fears it would not be used only to fight disease. "I just don’t have a lot of confidence people wouldn’t use it for their own gain, " he said. The study suggests a lack of trust in the technology. About one-third of Americans think gene editing will be used before it is fully tested. Nearly 90 percent of the people in the study thought that the technology will be used for the wrong reasons.
Questions 19 to 22 are based on the recording you have just heard.
19. What does the public opinion study find?
20. What are Americans concerned about the gene-editing technology?
21. What does the international science guidelines say about gene-editing?
22. What is the museum worker Jaron Keener’s attitude towards gene-editing?
选项
A、Americans are the first to apply the gene-editing technology.
B、Americans are all celebrating the improvement in gene-editing.
C、Americans approve of gene-editing only for health purposes.
D、Americans have called for an end to the gene-editing tests.
答案
C
解析
原文中提到,一项民意调查显示,大多数美国人会接受使用基因编辑技术以使婴儿免受某些疾病的侵害。但该调查同时发现,美国人不支持通过改变孩子的基因结构或DNA来让他们跑得更快、更高或更聪明。也就是说,美国人只赞成出于健康目的进行的基因编辑。因此答案为C。
转载请注明原文地址:https://kaotiyun.com/show/Ldx7777K
0
大学英语六级
相关试题推荐
A、Jogging.B、Swirnming.C、Tennis.D、Cycling.C四个选项都是体育运动,初步猜测题目和参与的运动有关。根据录音,人们提到的第三个最受欢迎的运动是网球,故答案是C。四个选项都有被提到,按照受欢迎的程度,第一位是jog
A、Itcanreducetheriskofheartdisease.B、Itcanimprovetheeffectofexercise.C、Itcanmakeusfeelhappy.D、Itcancures
A、Amancarefulwithmoney.B、Abook-lover.C、Anoisyreader.D、Atrouble-maker.A选项描述的是男士的特点,从他两次提及pay,可见花钱很谨慎,故A正确。B、D从原文内容无法推
A、Takecoursesofforeignlanguagesandcultures.B、Gainadeepunderstandingoftheirownculture.C、Participateininternation
A、Listeningtomusic.B、Readingbooks.C、Doingexercise.D、Exchangingfamilynews.B
A、Largeamountsofnewspaperandcoloredpaper.B、Smallpiecesofragsorcloth.C、Oldenvelopeswithlittleprinting.D、Softwo
A、Howtocareforpreciousmetals.B、Astandardunitformeasuringweight.C、Thevalueofpreciousmetals.D、Useofthemetrics
A、Onehour.B、Twohours.C、Threehours.D、Fourhours.B男士说观鲸之旅1点出发,3点回来,一共2个小时;而且女士两次提到twohours,故选B。
A、Thepsychologicaldependenceonhigh-techdevices.B、ThepsychologicaldependenceontheInternet.C、Thefearofbeingoutof
A、Studentsarenotrequiredtoattendregularclasslectures.B、Theprofessorvideotapesclasslecturesforreview.C、Classesar
随机试题
患者男,70岁,高血压10年。今日在服用降压药物后出现头晕、恶心、乏力。查体:血压110/70mmHg,脉搏106次/分。目前最主要的处理措施是
甲公司为增值税一般纳税人,主要从事汽车销售和维修业务,2018年6月,有关经济业务如下:(1)进口小汽车一批(非超豪华小汽车),取得海关进口增值税专用缴款书注明增值税税额176万元。(2)购进维修用原材料及零配件,取得增值税专用发票注明
下面的选文,完成下列问题。经验鲁迅①古人所传授下来的经验,有些实在是极可宝贵的,因为它曾经费去许多牺牲.而留给后人很大的益处。
试论民事权利的保护方法。
颜色:红色
依法治国方略的实施是一项浩瀚庞大、复杂而艰巨的系统工程,要全面发挥各种社会规范的调整作用,综合协调地运用多元化的手段和方法实现对国家的治理和管理。关于依法治国理念的基本要求,下列哪些说法是正确的()。
编译
有以下程序:#include<stdio.h>main(){intm=1,n=2,*p=&m,*q=&n,*r;r=p:p=q:q=r;printf("%d,%d,%d,%d\n",m,n,*p,*q);}程序的运行结果是()
A、TheUniversityofBritishColumbia.B、TheUniversityofToronto.C、McGillUniversity.D、TheUniversityofMontreal.B根据句(2)可知,
Theterm"qualityoflife"isdifficulttodefine.It【C1】______averywidescopesuchaslivingenvironment,health,employment,
最新回复
(
0
)