Lesson 7.1.3. Home Appliances

Listening

Lesson 7.1.2. Means of personal security and home security

Speaking

Language development

Ex 8. Fill in the words from the list, then make sentences using the completed phrases: machine, correctly, switch on, analog, equipped with, guarantee, safety, recording, device, washing, the appliance, certificate, installed, earthing, digital, video

Ex 9. Fill in the correct preposition, then make sentences using the completed phrases: in, per, at, by, up, for, on, at, for, about

1. work ____ using a signal 6. ___ cashpoints

2. _____ a constant rate 7. information _____ money

3. frames ___ second 8. all ___ one.

4. grow ____ with mobile phones 9. to pay ____ goods

5. ___ the ground 10. enroll ___ courses

Ex 10. In pairs, discuss these questions.

1. Do you use digital devices in everyday life? What kind of devices do you use?

2. How will computers be used in future?

3. What new digital devices you think will have been developed by 2020?

Ex 11. Match the verbs with the nouns.

1. give a money

2. keep b a PIN

3. access c databases

4. enter d presentations

5. transfer e records

Ex 12. In small groups, choose one of the devices below and discuss how it makes your life easier.

Washing machine

Computer

Mobile phone

GPS navigation system

Digital camera

Ex 1. Listen to Sarah Woods giving a class about RFID tags and decide which answers are correct:

1. RFID stands for

Radio Frequency Identification/ Radio Frequency Identification Download

2. Radio tags

can only be attached or embedded into products/ can be attached to or embedded into products, animals and humans

3. Active RFID tags

have a communication range of several hundred metres/ have a communication range of 5 metres.

4. RFID chips

will help us track ordinary objects like car keys or books / won’t be able to locate objects when they are lost or stolen.

5. Radio tags may be implanted under the skin

to confirm a patient’s identity and cure illnesses / to give doctors instant access to a patient’s medical history.

Ex 2. In pairs, discuss how secure you think RFID is. Give reasons for your answers.

Ex 3. Read and translate the text about wireless security cameras.

Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio. However, some wireless security cameras are battery-powered, making the cameras truly wireless from top to bottom.

Wireless cameras are proving very popular among modern security consumers due to their low installation costs and flexible mounting options; wireless cameras can be mounted/installed in locations previously unavailable to standard wired cameras.

Types of Wireless Security Cameras

Analog wireless is the transmission of audio and video signals using radio frequencies. Typically, analog wireless has a transmission range of around 300 feet (91 meters) in open space; walls, doors, and furniture will reduce this range.

Pros. Multiple receivers per camera: the signal from one camera can be picked up by any receiver; you can have multiple receivers in various locations to create your wireless surveillance network.

Cons. Susceptible to interference from other household devices, such as microwaves, cordless phones, video game controllers, and routers.

Digital wireless camera is the transmission of audio and video analog signals encoded as digital packets over high-bandwidth radio frequencies.

Pros. Wide transmission range - usually close to 450 feet (open space, clear line of sight between camera and receiver).

Uses and Applications

Wireless security cameras are becoming more and more popular in the consumer market. They are a cost-effective way to have a comprehensive surveillance system in your home or business without needing an expensive installation. Wireless cameras are also a great for people renting homes or apartments. Since there is no need to run video extension cables through walls or ceilings (from the camera to the receiver or recording device) one does not need approval of a landlord to install a wireless security camera system.

A wireless security camera is also a great option for seasonal monitoring and surveillance. You can observe your pool or patio in the summer months and take down the camera in the winter.

Ex 4. Answer the questions.

1. What is a wireless security camera?

2. Why are wireless security cameras very popular among consumers?

3. What are advantages and disadvantages of using these devices?

4. What types of wireless security cameras do you know?

5. Have they got any disadvantages? Compare them.

6. What other security devices do you know?

Ex 5. In pairs, discuss the advantages and disadvantages of traffic enforcement cameras.

Ex 6. Comment on the following statements.

1. Speed enforcement cameras are used to monitor compliance with speed limits

2. Use of cameras is opposed by some motorists and motoring organisations.

Ex 7. Prepare the presentat on the following topic: «Child security»

Ex 1. What home appliances do you see in the pictures? Which of them do you use in your everyday life?

Ex 2. Discuss in pairs, the advantages and disadvantages of modern home appliances.

Ex 3. Read the washing machine instruction. Look at the picture of the washing machine and discuss what buttons and indicators are used to start a machine, to select a required program, to activate a new wash cycle, to delay the start, etc.

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