2014職稱英語考試綜合類沖刺練習(xí)之概括大意1

　　Unlocking the Human Genome (基因組)

　　1. A 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 (破譯) all of the some 100,000 genes in the human body. Scientists are using DNA fingerprinting techniques to do the decoding.

　　2. DNA is the substance found in the chromosomes (染色體) 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 (蛋白質(zhì)) .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.

　　3. ut 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 (突變) .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.

　　4. It 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 all that 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 discover of each of the genes in our body.

　　A.that person's health

　　B.a scientific answer

　　C.scientific researchers

　　D.the genes

　　E.the function

　　F.the size

　　答案：23.B 24.E 25.F 26.D 27.D 28.C 29.A 30.E

　　課程推薦：零基礎(chǔ)高效通關(guān)職稱英語，網(wǎng)校12小時(shí)助您穩(wěn)拿68分

    環(huán)球網(wǎng)校友情提示：如果您在此過程中遇到任何疑問，請(qǐng)登錄環(huán)球網(wǎng)校職稱英語頻道及論壇，隨時(shí)與廣大考生朋友們一起交流!

    編輯推薦：
    2014年職稱英語考試報(bào)名時(shí)間匯總
    2013年職稱英語考試真題及答案交流
    2014年職稱英語等級(jí)考試輔導(dǎo)招生簡(jiǎn)章
    2014年職稱英語考試高端押題保過套餐
    環(huán)球網(wǎng)校2012職稱英語考試輔導(dǎo)通過率