B. The scientists have made great progress in connecting the genes with the cancers.
C. Many medical companies show great interest in drawing the human genome map.
D. The United States began the Genes Study early in the 19th century.
4. The author suggests that the Human Genome Project can cause _______.
A. the policy makers to feel very worried and careful
B. the scientists to work harder
C. many people to find work easily
D. a lot of companies to produce many new drugs
5. The main idea of this article is about _______.
A. unlocking genetic code
B. the genes' discovery
C. the great human genome
D. the genes and the scientists
【答案解析】
绘制人类基因组图,这将意味着人类消灭癌症、艾滋病的危害,延长人类寿命将成为现实。
1. B。语义理解题。从文章最后一段第1句话Once these genes are found and studied, researchers can develop new ways to attack infections(传染), and genetic diseases 可以看出科学家们完成人类基因组图的目的。
2. C。细节题。因为 …the leading organization for genetic research is in the United States,所以答案选 C。
3. D。判断题。美国是在 1990 年,即 20 世纪末开始绘制人类基因组图的,所以选项D 不对。
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