Grade 9 - Unit 7 (part1)

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<b>UNIT 7: SAVING ENERGY </b>

<b>Getting started, listen and read </b>

- energy /ˈenədʒi/ (n): năng lượng
- bill /bɪl/ (n): hóa đơn

- enormous /ɪˈnɔːməs/(a): quá nhiều, to lớn
- reduce /rɪˈdjuːs/(v): giảm

 reduction (n): sự giảm lại

- plumber /ˈplʌmə(r)/ (n): thợ sửa ống nước
- crack /kræk/ (n): đường nứt

- pipe/paɪp/ (n): đường ống (nước)
- faucet /ˈfɔːsɪt/ (n) = tap: vòi nước
- drip/drɪp/ (v): chảy thành giọt
<b>Answer key: </b>

b/1.True
2.True
3.False

→ Mr. Ha has not checked the pipes in her house yet.
4.False

→ Mrs. Ha suggests getting a plumber to check the cracks in the pipes.
5.True

<b>Read </b>

- right away = immediately: (adv) ngay lập tức
- folk /fəʊk/ (n): người

- explanation /ˌekspləˈneɪʃn/(n): lời giải thích
 explain (v)

- bubble /ˈbʌbl/ (n): bong bóng
- valuable /ˈvỉljuəbl/ (a): q giá
 value (n): giá trị

- keep on = go on = continue: tiếp tục

- minimize /ˈmɪnɪmaɪz/ (v): giảm đến tối thiểu
 minimum (n/a) : tối thiểu  (pl.n) minima

- complain to s.o /kəmˈpleɪn/ (v): than phiền, phàn nàn
 complaint (n): sự than phiền

- complicated /ˈkɒmplɪkeɪtɪd/ (a): phức tạp
 complication (n): sự phức tạp

 complicate (v): làm phức tạp

- resolution /ˌrezəˈluːʃn/ (n): cách giải quyết
 resolve(v): giải quyết

- politeness /pəˈlaɪtnəs/(n): sự lịch sự

 polite(a): lịch sự><impolite (a): mất lịch sự
- label /ˈleɪbl/ (v): dán nhãn

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- clear up: dọn sạch

- truck /trʌk/ (n): xe tải

- look forward to: mong đợi (+V-ing)
- refreshment /rɪˈfreʃmənt/ (n): sự nghỉ
ngơi

- fly /flaɪ/ (n): con ruồi
- float /fləʊt/ (v): nổi

- surface /ˈsɜːfɪs/ (n): bề mặt
- electric shock (n): điện giật
- wave /weɪv/ (n): làn sóng

- local /ˈləʊkl/ (a): thuộc về địa phương
 local authorities/ɔːˈθɒrətiz/: chính
quyền đại phương

- prohibit /prəˈhɪbɪt/ (v) = ban (v): ngăn
cấm

 prohibition (n): sự ngăn cấm
- fine /faɪn/ (v): phạt tiền

 fine (n): tiền phạt

- solar energy: năng lượng mặt trời
 solar (a): thuộc về mặt trời
 sun (n): mặt trời

 sunny (a): đầy nắng

- nuclear power: năng lượng hạt nhân
- power (n) = electricity: điện

 powerful (a): hùng mạnh

- heat /hiːt/ (n, v): sức nóng, làm nóng
 hot (a): nóng

- install /ɪnˈstɔːl/(v): lắp đặt
 installation (n): việc lắp đặt
- coal /kəʊl/ (n): than

- luxuries /ˈlʌkʃəri/ (n): xa xỉ phẩm

- necessities /nəˈsesəti/ (n): nhu yếu phẩm
- consume /kənˈsjuːm/ (v): tiêu dùng
consumer /kənˈsjuːmə(r)/ (n): người
tiêu dùng

 consumption /kənˈsʌmpʃn/ (n): sự tiêu thụ
- effectively /ɪˈfektɪvli/ (adv): có hiệu quả
effective (a) : hiệu quả

- household /ˈhaʊshəʊld/ (n): hộ, gia đình
- lightning /ˈlaɪtnɪŋ/ (n): sự thắp sáng
 light (v): thắp sáng

- account for: chiếm

- replace /rɪˈpleɪs/ (v): thay thế
 replacement (n): sư thay thế
- bulb /bʌlb/ (n): bóng đèn trịn

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- standard /ˈstændəd/(n): tiêu chuẩn

- last /lɑːst/ (v): kéo dài

- scheme /skiːm/ (n): plan kế hoạch
- freezer /ˈfriːzə(r)/ (n): tủ đông
 freeze (v) : làm đông

- tumble dryer /ˈtʌmbl - /ˈdraɪə(r)/: máy sấy
- compared with: so sánh với

 compare (v): so sánh
 comparison (n): sư so sánh
- category /ˈkætəɡəri/ (n): loại

- ultimately /ˈʌltɪmətli/ (adv) = finally: cuối cùng, sau hết
 ultimate (a) = final : cuối cùng

- as well as : cũng như

- innovate /ˈɪnəveɪt/ (v) = reform /rɪˈfɔːm/: đổi mới
 innovation (n) = reform: sự đổi mới

<b>Answer key: </b>
a/ 3

b/

1. They are interested in products that will not only work effectively, but also save
money.

2. We can use energy-saving bulbs instead of ordinary 100 watt-light bulbs.
3. She will pay US$2.

4. The label tells the consumers how much energy efficiency each model has, compared
with other appliances in the same category.

5. By saving energy, we can conserve the Earth’s resources.

<b>EXERCISES </b>

<b>MATCH THE WORD IN COLUMN A WITH THE EXPLANATION IN COLUMN B </b>

<b>MULTIPLE CHOICE </b>

1. A(n) _______ is someone who works to protect the environment from the destruction.
A. consumer B. plumber C. conservationist D. electrician

2. Ultimately, we will have to make the decision ourselves.

A. Consequently B. Finally C. Basically D. Generally

<b>A </b> <b>B </b>

1. innovation A. the need for something

2. necessity B. the protection of natural environment

3. category C. a tire, or a group of things having some features that are the same
4. account for D. the introduction of new things, ideas…

5. conservation E. make something smaller in size, weight, price
6. efficiency F. to be the explanation or cause of something
7. reduce G. containing valuable and expensive things

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3. Scientists are looking for an ______ way to reduce energy consumption.

A. disappointing B. useless C. effective D. hopeful

4. “I think we should fix the dripping faucets.” – “______.”

A. We will B. Good idea C. Yes, please D. I’m afraid.

5. If we don’t find _____ sources of power, we will use up all the fossil fuels in the near
future.

A. effective B. efficient C. natural D. alternative

6. You should have a (n) ______ check your motorbike regularly.

A. mechanic B. carpenter C. electrician D. plumber
7. In the winter, heating ______ 20 percent of the electricity bill.

A. consists of B. accounts for C. divides into D. takes up

8. The Western countries can store solar energy so as to ______ their places on the cloudy
days.

A. melt B. soften C. heat D. dissolve

9. If we ______ wasting electricity, we will have to pay a lot next month.

A. go on B. cone on C. keep up D. put on

10. Another way to ______ is to turn off the electric fans when you aren’t in the room.
A. keep solid waste B. reuse paper C. save energy D. reduce garbage

<b>SUPPLY THE CORRECT WORD FORM </b>
1. Many people cannot afford even basic

_______ such as food and clothing.
(necessary)

2. Energy _______ includes searching for
alternative fuels. (conserve)

3. The new appliance does not only work
_______ but also saves money. (effect)
4. My neighbor asked me to come over and

replace their _______ faucet in the
kitchen. (drip)

5. You should stop wasting money on
_______ and start saving for future.
(luxury)

6. These _______ will conserve the earth’s
resources. (innovate)

7. A lot of houses in European countries will
be _______ by solar energy (hot)

8. The store is having a discount for energy
_______ light bulbs, (save)

9. ______, it is English that helps you apply
for a good job. (ultimate)

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<b>USE THE WORDS IN THE BOX TO COMPLETE THE PASSAGE </b>

<i>replacing consumers effectively appliances accounts </i>
<i>innovations luxuries standard however scheme </i>

In Western countries, electricity, gas, and water are not (1) _________ but necessities.
Companies now realize that consumers want products that will not only work (2) _________,
but also save money.

For most North American households, lighting (3) ________ for 10 percent to 15
percent of the electricity bill. (4) _________, this amount can be reduced by (5) ________ an
ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use a quarter of the
electricity of (6) ________ bulbs and last eight times longer. Therefore, (7) ________ can save
about US7 to US21 per bulb.

In Europe, there is a labeling (8) _________ for refrigerators, freezers, washing
machines and tumble dryers. The label tells the consumers how much energy efficiency each
model has, compared with other (9) _________ in the same category.

Ultimately, these (10) __________ will save money as well as conserve the Earth's
resources.

<b>CHOOSE THE WORD THAT BEST FITS THE BLANK SPACE IN THE </b>
<b>FOLLOWING PASSAGE </b>

Every day, in homes all over the world, people waste huge (1) ______ of energy and
water. Hong Kong is estimated to waste about $5 billion worth of energy a year. This is due to
their bad habits. For example, leaving lights, air-conditioners and televisions on when no one
is in the room (2) ______ for wasteful energy consumption. Using too much water, or not (3)
______ dripping taps, also contributes to the problem. Most people do not realize (4) ______
saving energy in the home will actually save them money. If people use (5) ______ energy,
gas and electricity bills will become lower. Most of the ways we can use to decrease energy
consumption in the home are very simple. The most obvious one is (6) ______ household
appliances when they are not in use.

1. A. numbers B. sums C. amounts D. qualities

2. A. explains B. accounts C. provides D. cares

3. A. closing B. reducing C. fixing D. breaking

4. A. which B. there C. whether D. that

5. A. lower B. fewer C. more D. less

6. A. turn off B. turn on C. break down D. break up

<b>READ THE PASSAGE AND THEN DECIDE WHETHER THE STATEMENTS THAT </b>
<b>FOLLOW ARE TRUE OR FALSE </b>

<b>A. </b> Many people still believe that natural resources will never be used up. Actually, the
<b>world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, </b>
we also should use them economically and try to find out alternative sources of power.
According to Professor Marvin Burnham of the New England Institute of Technology, we
have to start conserving coal, oil and gas before it’s too late; and nuclear power is the only
alternative.

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cancer and may badly affect the future generations. The most effective thing is that we should
use natural resources as economically as possible.

1. We can use natural resources as much as possible.

2. The alternative sources of power are very important for future use.

3. We can find kinds of alternative sources of power in nature.

4. Nuclear power has a bad effect on people’s life.

<b>Read passage again and choose the best answer (A, B, C or D) </b>
5. What is the best title for the passage?

A. The importance of nuclear energy C. The choice of using natural resources
B. Using nuclear power economically D. How to conserve natural resources
<b>6. The word “limited” in line 2 has the closest meaning to. </b>

A. stopped B. controlled C. restricted <b>D. prohibited </b>

<b>B. </b> Solar energy has been used for
generating electricity since 1954. Solar panels
are installed on the roofs of houses to turn the
energy of the sun into the electricity that people
can use for heating, cooking, lighting and many
other purposes. In order to get solar energy
what we need are solar panels and the sun. One
of the advantages of solar energy is that solar
<b>panels are totally silent and non-polluting. </b>
However, solar energy also has some
disadvantages. We can only generate solar
energy during daytime because the system
depends on sunlight.

The main disadvantage of solar energy

is that solar panels are expensive. Scientists are
doing their best to reduce the cost of solar
panels so that more and more people can use
this environmentally friendly source of energy
in the near future.

1. Solar energy is unfriendly to the
environment.

2. People can get solar energy without the sun.
3. Solar panels will be cheaper in a few years.
4. There aren’t any disadvantages of solar energy.

<b>Read passage again and choose the best answer (A, B, C or D) </b>
5. What is the main idea of the passage?

A. The purposes of using solar energy.

B. People are interested in saving money and natural resources.
C. Solar energy helps save money.

D. The advantages and disadvantages of solar energy.

6. <b>The word “non-polluting” is the same meaning with _______. </b>

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