职称英语考试

试题来源：2007年职称英语等级考试真题（理工类C级）
【单选题】

Unlocking the Human Genome（基因组）
　　1A project to unlock secrets-what scientist could resist that challenge?This is what many scientists are doing as they work on the Human Genome Project.The aim of the project is to decode（破译）all of the some 100,000 genes in the human body.Scientists are using DNA fingerprinting techniques to do the decoding.
　　2DNA is the substance found in the chromosomes（染色体）of a cell.A chromosome is a chain of genes.Each gene carries a piece of genetic information.At any one moment in a cell,thousands of genes are turned on and off to produce proteins（蛋白质）.The challenge for scientists is to find out what role each gene plays in protein production.At some point this decoding will be complete.Then scientists will have a map of an ideal genome,or a picture of the total genetic nature of a human being.The ideal genome is called a consensus（交感）genome.Everything works well in a consensus genome.
　　3But no one in the world has a consensus genome.Everyone's genome is different from the ideal.These differences are referred to as genetic mutations（突变）.Genetic mutations in a person's genome mean that the person has a greater than average chance of suffering from health problems.Some problems are not life-threatening.These would include things like colorblindness,or mild headaches.Other problems are serious,such as heart disease,or cancer.
　　4It will take years to identify the role of each of the 100,000 genes,The short-term goal of the project is to find the physical and mental health problems a person is likely to encounter during his or her lifetime.The long-term goal is to have each person live a longer,healthier life.
　　23.paragraph 1　　　　　.
　　24.paragraph 2　　　　　.
　　25.paragraph 3　　　　　.
　　26.paragraph 4　　　　　.
　　A　How does DNA work?
　　B　What is the Human Genome Project about?
　　C　How are the DNA samples collected?
　　D　What are the goals of the Human Genome Project?
　　E　What is the role of each gene?
　　F　What are the consequences of genetic mutations?
　　27.The Human Genome Project is trying to map allthat make us human.
　　28.Decoding the human  genome is a challenge to.
　　29.Genetic mutations in a person's genome may affect.
　　30.Scientists are trying hard to discoverof each of the genes in our body.
　　A　that person's health
　　B　a scientific answer
　　C　scientfic researchers
　　D　the genes
　　E　the function
　　F　the size

网考网参考答案：B、E、F、D、D、C、A、E
大数据分析：根据网考网与考试题库的统计分析，该试题：
57%的考友选择了A选项
15%的考友选择了B选项
10%的考友选择了C选项
8%的考友选择了D选项
1%的考友选择了E选项
9%的考友选择了F选项
考友解析与评论：
 · 题目都看不懂，整个就是乱蒙。
 · 这题答案有争议，我认为选B、E、F、D、D、C、A、E
 · 这题不解，原来选B、E、F、D、D、C、A、E，感觉没错啊