新视野大学英语视听说教程 4 Unit 8-1
时间：2018-12-29 作者：英语课 分类：新视野大学英语：视听说教程 4
Uint8
II. Basic Listening Practice
1. Script
M: Scentists claim the world population has 99.5% of the same DNA 1.
W: But this doesn’t tell us there is no such thing as race.
Q: What is true of the DNA of difference races?
2. Script
W: With the advent 2 of the genetic 3 map we know where everything is, but do we know where to go with it?
M: Your map seems to differ largely from my geographical 4 map!
Q: What does the man imply?
3. Script
M: As you know, it has taken millions of years of evolution and natural selection to get us where we are today.
W: Yes, but now that we have genetic engineering, we seem to have decided 5 that we want to be God.
Q: What does the woman imply?
4. Script
M: I think the research into cloning will lead us into dangers, filling us with false hopes of perfection.
W: It’s too late to turn back the clock. We’ll just have to depend on common sense to solve uncommon 6 problems.
Q: What does the woman mean?
5. Script
W: In America, many prisoners are having their cases reviewed, and some have even been freed through DNA testing.
M: Except for the ones whose death sentence has already been carried out.
Q: What can we learn about DNA testing from the dialog?
Keys: 1.B 2.C 3.D 4.A 5.C
- DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
- Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。
- Swallows come by groups at the advent of spring. 春天来临时燕子成群飞来。
- The advent of the Euro will redefine Europe.欧元的出现将重新定义欧洲。
- It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
- Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
- The current survey will have a wider geographical spread.当前的调查将在更广泛的地域范围內进行。
- These birds have a wide geographical distribution.这些鸟的地理分布很广。
- This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
- There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。