1 Once non - renewable energy sources are used...... they are gone forever
A.Out B.Up C.For D.Off
2 What .... if carbon dioxide levels continue to increase ?
A. happen B.Will happen C.Will be happened D.Will be happening
1.Chọn đáp án A,B,C,D
1.Businesses have ... more money in renewable energy in recent year
A.invested B.limited C.controlled D.affected
2.Once non-renewable energy sources are used ..., they are gone forever
A.off B.up C.out D.for
3.The Shinkanseen bullet train, a ... passengertrain off Japan, can reach a speed of 320km/h
A.high-speed B.non-speed C.speedless D. low-speed
4.At present, ... are constantly working on improving transportation
A.inventives B.invents C.inventions D.inventors
The city of Aukland is so ... that it is paying people to leave
A.effective B.overcrowded C.eco-friendly D.pleasant
5.It is not unusual to be stuck in traffic ... several hours during rush hours
A.in B.on C. for D.at
1.solar and wid......instead of fossil fuels within 20 years
A.are used B.will be used C.will use D.will be using
2.humankind's future..........bright if they can utilize renewable energy in the future
A.is B.was C.will be D.won't be
3.we...........able to create a future that's free of carbon pollution by using renewale energy sources
A.will be B.won't be C.will be being D.will have been
(3) Read the text. (Page 44)
Dear guests, I’d like to talk to you today about renewable and non-renewable energy.
Fossil fuels are nom-renewable energy sources. They include oil, coal, and natural gas. They can be used to create energy, generate electricity or drive big machinery. Unfortunately, they are harmful to the environment. Viet Nam still relies mostly on non-renewable energy sources, however, hydro power is increasingly used here too.
Hydro and nuclear power can generate a great deal of energy. They are renewable and plentiful. However, hydro power is limited because dams cannot be built in certain areas. Nuclear power can provide enough electricity for the world’s needs, but it is dangerous.
The sun and the wind are other alternative sources of energy. The win turns turbines to make electricity. Solar power can be converted into electricity. It can be used to heat or cool our houses. Although there are some disadvantages, these alternative energy sources can offer abundant amounts of clean, safe electricity. They will be valued more and more in the future in Viet Nam.
a. Match the verbs with the nouns.
Verbs Nouns
1. create
2. drive
3. generate
4. turn
5. heat a. machinery
b. turbines
c. energy
d. houses
e. electricity
Answer: 1…,2…,3…,4…,5…
b. Answer the questions.
1. How many types of energy sources are mentioned in the text? What are they?
…………………………………………………………………………………………..
2. What are the disadvantages of hydro and nuclear power?
………………………………………………………………………………………….
3. Why do you think the wind and the sun are called alternative sources of energy?
…………………………………………………………………………………………
4. What types of energy does Viet Nam use most?
……………………………………………………………………………………
We use many different energy sources to do work for us. Energy sources are classified into two groups - renewable and nonrenewable. Non-renewable energy sources are those that take millions of years to form and will run out some day. It is energy that comes from fossil fuels such as coal, crude oil, and natural gas. Fossil fuels are mainly made up of carbon and were formed millions of years ago. The chemical reaction which takes place when we burn fossil fuels releases carbon compounds such as carbon monoxide and carbon dioxide into the air. Carbon dioxide is one of the green house gases which is contributing to global warming and air pollution. On the other hand, renewable energy sources will never run out, are better for the environment and do not cause pollution. Renewable energy is often called green energy because it is a natural energy, always available and does not have to be formed like nonrenewable energy. The green energy is always there. For example, the Sun consistently shines, water is abundant, and the winds blow throughout the year. The five types include solar, energy from the Sun; geothermal, energy from heat within the Earth; hydroelectric, energy from moving water; biomass, energy from dead plants and microorganisms and finally, energy from the wind.
UNIT 10: SOURCES OF ENERGY
1. What are some non-renewable sources of energy? Talk about the possible bad effects they have on the environment.
2. What are some renewable sources of energy? Talk about the-possible benefits they bring to the environment.
3. What can you do to reduce the energy bills in your family?
4. Your school needs to cut down on electricity bill. Make suggestions and recommendations to the principal.
5. What can people/ the government do to save non-renewable sources of energy for our next generations?
Vt topic với những ý trên
IV. Choose the best answer, a, b, c or d to complete the sentence.
1. Once non-renewable energy sources are used_______________they are gone forever.
a. out b. up c. for d. off
2. Many chemicals have a damaging effect ______________effect environment.
a. on b. inc. to d. for
3. Renewable energy isalso called”____________energy” because it doesn’t pollute the air.
a. inexhaustible b. available c. clean d. dangerous
4. ____________ the pollution it cause, coal still plays an important role inthe production of electricity around the world.
a. Despite b. Due to c. Even though d. However
5. What ________if carbondioxide levels continue to increase?
a. happenb. will happen c. will be happened d. will be happening
6. The use of wind energy is growing rapidly because it is widely available and______________.
a. environmentalfriendly b. environmental friendlyc. environment friendlyd. friendly environmental
7.Using solar panels at home can help____________your electric bill and your carbon footprint.
a. reduceb.increasec. provided. convert
8. Wind power is the most promising______________source of energy.
a. non-renewable b.natural c. limited d. alternative
9. You can save much water by______________.
a. using energy saving light bulbs b. using biogas for cooking c. taking showers instead of baths d. walking or riding a bike to school
10. ‘Is it difficult to reduce our carbon footprints?’ ‘________________’
a.It depends on the way you think. b. Not at all. Just practicing the 3R’s. c. It’s not if we still rely on fossil fuels. d. I’m not sure. What will happen?
Children tend to be more _____________ than adults. (imagine)
More renewable energy sources will be used to solve the problem of____. POLLUTE
Because our major sources of energy are running out while the solar energy is abundant and___ .LIMIT
____,fossil fuels are harmful to theenvironment.FORTUNATE
Energy is used to produce a lot of____things.ELECTRic
The____of wind turbines will be completed by next Friday.INSTALL
It can be found in only some places of the earth. It comes from___inside the earth.DEEP
Put the correct form of the verbs in brackets.
1. At present, global demand for energy (increase) rapidly.
2. Three years ago, we (install) a solar water heating system on our roof.
3. What (happen) if non-renewable resources run out?
4. A small recycle plant (build) on the river in ten years' time. .
5. If the electricity (make) from wind turbines, it is green.
| roofs | garden | non - polluting | polluting |
| the moon | are | renewable | the Sun |
Solar energy is a long lasting source (0)..of.. energy, and it can be used almost anywhere. To generate solar energy, we only need solar cells and (1).....................! Solar cells can easily be installed on house (2) ................., so we don’t need any new space. Compared to other (3)...................... sources, they also possess many advantages: wind and water power rely on turbines which (4).................noisy, expensive and which take up large space. Solar cells are totally silent and (5).......................... As they have no moving parts, they require little maintenance and have a long lifetime.
Question 5
