english 11: unit 11: sources of energy

8/7/2019 English 11: Unit 11: Sources of energy

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Unit 11SOURCES OF ENERGY


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Vocabulary

device (n) an object or a piece ofequipment that has been designed to do a

particular job

base sth on to use an idea, a fact, asituation, etc. as the point from which sth

can be developed

sheet(n) a flat thin piece of any material corrugated(adj) shaped into a series of

regular folds that look like waves (like the

roof of the house)


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Vocabulary insulate (v) to protect sth with a material

that prevents heat, sound, electricity, etc.from passing through insulation (n)

rubber(adj) PVC

attach (v) join one thing to another

flow (v) (of liquid, gas or electricity) tomove steadily and continuously in one

direction desire (v) to want sth; to wish for sth

operate (v) to use or control a machine or

make it work


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I. Listen and answer the

question:

1. What are solar heaters?

2. Where was the design, which the

solar heater based on, developed?

3. What can the solar heater do?

4. How many parts does the solarwater heater have? What arethey?

5. How long will the solar heater last?


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II. True or false:

1. The solar water heater can heatseventeen liters of water to fifty degreesCelsius.

F

2. The black mental surface will heat thewater.

T

3. The black mental plate is called areceptor.

F


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II. True or false:4.There are two pipes that let water flow into

the system.F

5.You can use the hot water at the top of the

tank for washing and cleaning.T

6.Its not difficult to build the solar heater.

T7.The heater can work in any kind of

weather.

F


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Vocabulary

to provide sth for sb (v) to give sth to sbor make it available for them to use

motor(n) a device that uses electricity,

petrol / gas, etc. to produce movementand makes a machine, a vehicle, a boat,

etc. work

industry (n) the production of goods fromraw materials, especially in factories

industrial (adj) connected with industry

industrialize (v)


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Vocabulary

approve (v) (of sb/sth) to think that sb/sth is

good, acceptable or suitable opp.disapprove

estimate(v) to form an idea of the cost,

size, value etc. of sth, but withoutcalculating it exactly

complex (adj) made of many different things

or parts that are connected; difficult tounderstand

generator(n) a machine for producing

electricity


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III. Listen and fill in the blank:

Answers:1.fifteen

2.motors

3.industrial

4.approve

5.crops

6.estimate

7. measure

8. size

9. falling10.turbine

11.generator

12.material

13.prevented


10/16

Game Look at the followingpictures and guess whatkind of energy are they.

Winners get presents.


11/16Wind energy


12/16Water energy


13/16Solar energy


14/16Geothermal heat energy


15/16Fossil Fuels energy


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Members:

Nguyn Ngc MyHunh Bo Ngc

Phm Th Hng PhngT Hunh Nh

english 11: unit 11: sources of energy

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