物联网专业英语教程第二版答案

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目录

第一章....................................................................................................................................... 2

passage1：施工管理Construction Management ........................................................... 2 Passage2 项目管理与计算机 .......................................................................................... 2 Project Management and the Computer .......................................................................... 2 第二章.........................................................

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目录

第一章....................................................................................................................................... 2

passage1：施工管理Construction Management ........................................................... 2 Passage2 项目管理与计算机 .......................................................................................... 2 Project Management and the Computer .......................................................................... 2 第二章.........................................................

参考答案

Unit 1

Text A Exercises

I. Answer the following questions according to the text.

1. The Internet of Things refers to uniquely identifiable objects (things) and their virtual representations in an Internet-like structure. The term Internet of Things was first used by Kevin Ashton in 1999.

2. It stands for Radio-frequency identification. It is often seen as a prerequisite for the Internet of Things.

3. Casagras is a global network infrastructure, linking physical and virtual objects through the exploitation of data capt

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目录

第一章....................................................................................................................................... 2

passage1：施工管理Construction Management ........................................................... 2 Passage2 项目管理与计算机 .......................................................................................... 2 Project Management and the Computer .......................................................................... 2 第二章.........................................................

UNIT 1

A 电路

电路或电网络由以某种方式连接的电阻器、电感器和电容器等元件组成。如果网络不包含能源，如电池或发电机，那么就被称作无源网络。换句话说，如果存在一个或多个能源， 那么组合的结果为有源网络。在研究电网络的特性时，我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成，所以必须首先定义这些元件的电特性. 就电阻来说，电压-电流的关系由欧姆定律给出，欧姆定律指出：电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为: u=iR (1-1A-1)式中 u=电压，伏特；i = 电流，安培；R = 电阻，欧姆。 纯电感电压由法拉第定律定义，法拉第定律指出：电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到：U=Ldi/dt 式中 di/dt = 电流变化率， 安培/秒； L = 感应系数， 享利。 电容两端建立的电压正比于电容两极板上积累的电荷q 。因为电荷的积累可表示为电荷增量dq 的和或积分，因此得到的等式为 u= ， 式中电容量C 是与电压和电荷相关的比例常数。由定义可知，电流等于电荷随时间的变化率，可表示为i = dq/dt。因此电荷增量dq 等于电流乘以相应的时间增量，或dq = i dt，

1.With low-power machinery or vehicles the operator can usually apply sufficient force through a simple mechanical linkage from the pedle or handle to the stationary part of the brake. In many cases, however, this force must be multiplied by using an elaborate braking system.（P5） 用低能机器或传力工具，操作者通过向踏板或把手的一个简单机械连接构件作用足够的力量到车闸固定的部分。大多数情况，然而，用一个详细（复杂）的车闸系统使这个力量成倍增加。

2. The fundamental principle involved is the use of compressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneo

1.With low-power machinery or vehicles the operator can usually apply sufficient force through a simple mechanical linkage from the pedle or handle to the stationary part of the brake. In many cases, however, this force must be multiplied by using an elaborate braking system.（P5） 用低能机器或传力工具，操作者通过向踏板或把手的一个简单机械连接构件作用足够的力量到车闸固定的部分。大多数情况，然而，用一个详细（复杂）的车闸系统使这个力量成倍增加。

2. The fundamental principle involved is the use of compressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneou

泛读教程1第二版答案

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xt>section a

1-5 dbbba cca

1-5 ddabc cbc

word match

delegationa group of people representing a much larger group of people prior existing before

ultimatelyfinally

run to organize or control

disciplinea branch of a sport; a branch of knowledge

gendersex

catalyst someone or something that causes change

cultivate to develop or improve something

foruma meeting in which people can exchange ideas and discuss things intimate having a very close relationship

conquer to win; to defeat

propose to make an offer of

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Unit 1 Section A

I Comprehension of The Text

1. The attitude is that if one is not moving ahead heis falling behind.

2. Time is treated as if it were something almostreal. (People budget it, waste it, steal it, kill it, cut it, account for it;they also charge for it.) They do this because time is a precious resource.

3. Everyone is in a rush —often under pressure. City people always appear to be hurrying to get wherethey are going, restlessly seeking attention in a store or el