科技英语课后练习答案
Unit 1 练习答案及课文译文
Part 2 Reading A
I
1 F 2 T3F 4T5T 6.F 7.T 8.T 9.F 10.T
II
1. Reducing the time and cost of product development and production.
2. The product cycle is composed of two main processes：the design process and the manufacturing process．
3. The activities involved in the design process can be classified largely as two types：synthesis and analysis．
4. Rapid prototyping is becoming popular because this technology enables the construction of a prototype by deposition layers from the bottom to the top．
5. This includes the preparation of drawings，reports，and bills of materials.
III
1.d 2.e 3.b 4.j 5.i 6.c 7.f 8.h 9.g 10.a
IV
1.处理速度 2.用户友好的交互图形 3. 产品周期 4. 设计规格 5. 设计评价
6.CAD 7.CAM 8.CAE 9.design process 10.production process
Unit 3
Part 2 Reading A
Ⅰ Mark the following statements with T(true ) or F (false) according to the passage.
1.F 2.T 3.F 4.F 5.T 6.F 7.T 8.T 9.F 10.F
ⅡGive brief answers to the following questions.
1. Nissan will unveil a new city car ,the pixo and a battery-electric concept car
2. Pixo is available with manual or automatic transmissions.
3. Sales start from late spring .
4. The NuVu battery pack uses new laminated lithium-ion cells with a capacity of 140 wh/kg .
5.There are no door mirrors to disturb the airflow.
Ⅲ Match the items listed in the following two columns.
1-5 j f d c g
6-10 e I h b a
Ⅳ Translate the following expressions.
1.手动或自动挡
2.内部设计
3.薄板锂离子电池
4.太阳能电池板
5.头尾灯
6 concept car
7. Horse power
8. test bed
9. battery pack
10. turning circle
ⅤTranslate the following sentences into Chinese.
1. 尼桑推出了一种新产品—城市汽车Pixo和一款电力驱动的概念车—NuVu，预示了尼桑未来的重点会放在电力驱动车上。
2. 尼桑表示，如果个人的流动性水平持续下降的话，正在进行的城市化将推进对城市中驾驶的各类汽车进行彻底的重新思考。
3. Nuvu最重要的方面是其内部设计，聪明的整体设计提供了极大的舒适和空间。
4. 两个踏板，用于停车和前进。还有数字仪表盘来显示速度，行驶距离和电池容量。
5.凭借其轻巧的结构，Pixo在NEDC(新欧洲循环驾驶 )试验中产生的二氧化碳排放量低至103克/公里，燃料消耗量为4.6升 /100公里。
UPart 2 Reading A
I. 1. T 2. T 3. F 4. F 5.T 6. F 7. T 8. F 9. T 10. F
II.
1. Three. They are a Communication System, A Measur
