Grade 9 - Unit 7 (part1)

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 nea[r]

UNIT 7: SAVING ENERGY

Getting started, listen and read

- 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

Answer key:

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

Read

- 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 /ˈvæljuəbl/ (a): quí 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

 label (n): nhãn hiệu

- 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 tròn

- energy-saving (a): tiết kiệm năng lượng

- 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

Answer key:

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

EXERCISES MATCH THE WORD IN COLUMN A WITH THE EXPLANATION IN COLUMN B

MULTIPLE CHOICE

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

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

8 luxurious H the quality of doing something well with no waste of time or money

3 Scientists are looking for an way to reduce energy consumption

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

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

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

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

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

SUPPLY THE CORRECT WORD FORM

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)

10 Yelling at teenagers is _ Talking

works better (effective)

USE THE WORDS IN THE BOX TO COMPLETE THE PASSAGE

replacing consumers effectively appliances accounts

innovations luxuries standard however scheme

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

CHOOSE THE WORD THAT BEST FITS THE BLANK SPACE IN THE

FOLLOWING PASSAGE

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

2 A explains B accounts C provides D cares

READ THE PASSAGE AND THEN DECIDE WHETHER THE STATEMENTS THAT FOLLOW ARE TRUE OR FALSE

A Many people still believe that natural resources will never be used up Actually, the

world’s energy resources are limited Nobody knows exactly how much fuel is left However,

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

However, many people do not approve of using nuclear power because it’s very dangerous What would happen if there were a serious nuclear accident? Radio activity causes

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

Read passage again and choose the best answer (A, B, C or D)

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

6 The word “limited” in line 2 has the closest meaning to

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

panels are totally silent and non-polluting

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

Read passage again and choose the best answer (A, B, C or D)

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 The word “non-polluting” is the same meaning with _