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UNIT 7.1

Total questions: 183

Worksheet time: 1hrs 26mins

Name
Class
Date
1.

Nick is reading a novel _______ Jack is reading a cartoon.

a)

while

b)

if

c)

but

2.

______ trees and burning forests destroy a lot of wildlife habitats.

a)

watering

b)

cleaning up

c)

cutting down

3.

The panda’s natural ______ is the bamboo forest.

a)

habitat

b)

ecosystem

c)

area

4.

I was not at home ______ he came to see me yesterday.

a)

while

b)

when

c)

if

5.

We cleaned up everything at the campsite ______ we left.

a)

until

b)

while

c)

before

6.

This weekend we're taking... in a clean up campaign.

a)

place

b)

part

c)

role

d)

position

7.

Pollution has a serious... on everyone in one way or another.

a)

effect

b)

end

c)

result

d)

conclusion

8.

.___________ spring comes, many Vietnamese villages prepare for a new festival season.

a)

Nevertheless

b)

When

c)

While

d)

However

9.

I'll play with my cat as soon as I...........home.

a)

will come

b)

came

c)

come

d)

comes

10.

I will stay here _______ it gets warmer

a)

when

b)

until

c)

before

d)

yes

11.

___________ we cook pies, we wash our hands.

a)

before

b)

after

c)

untill

d)

no

12.

He came home _________ he finished work.

a)

as soon as

b)

after

c)

no

d)

yes

13.

We should not only ______ more trees but also put much more effort into protecting forests.

a)

plant

b)

reduce

c)

stop

d)

cut down

14.

People all over the world are working to help save _______ animals from extinction.

a)

danger

b)

endangered

c)

dangerous

d)

dangerously

15.

A _______ is the total amount of greenhouse gases that are generated by our actions.

a)

carbon footprint

b)

carbon dioxide

c)

global warming

d)

ecosystem

16.

Some manufactures offer money for the return of batteries, so that they can ________ them safely.

a)

waste

b)

dump

c)

recycle

d)

throw away

17.

Around 8.7 million ____ of plants and animals exist on the Earth.

a)

means

b)

classes

c)

styles

d)

species

18.

______ pollution is the contamination of water such as lakes, rivers, oceans and groundwater.

a)

Water

b)

Air

c)

Soil

d)

Noise

19.

Forest fires ______ in environmental damage.

a)

contribute

b)

result

c)

lead

d)

create

20.

Cars and trucks pump out thousands of tonnes of poisonous _____ every year.

a)

pollutants

b)

exhaust pipes

c)

fumes

d)

chemicals

21.

Mệnh đề phụ thuộc thời gian bắt đầu bằng:

a)

because, since, as

b)

so that, in order that

c)

when, while, before, after, as soon as,...

d)

although, though, even though

22.

I always take off my shoes _____ I come home.

a)

even though

b)

so that

c)

because

d)

as soon as

23.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

Catherine was shocked ............. she found out the truth.

a)

When

b)

While

c)

Until

d)

as soon as

24.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

They have worked at this company ......... they graduated

a)

When

b)

While

c)

Until

d)

Since

25.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

At 8 pm last night, I was doing my homework ....... my sister was playing with her toys

a)

When

b)

While

c)

Until

d)

Since

26.

Khoanh tròn vào liên từ thích hợp để hoàn thành những phức dưới đây.

......... I had eaten my breakfast, I went to school by bus

a)

When

b)

While

c)

before

d)

After

27.

Nick is reading a novel _______ Jack is reading a cartoon.

a)

while

b)

if

c)

but

28.

The panda’s natural ______ is the bamboo forest.

a)

habitat

b)

ecosystem

c)

area

29.

Do not disturb me ___ I am busy with my work!

a)

when

b)

since

c)

although

d)

so that

30.

Joey was playing the guitar .................... Danny was washing the dishes.

a)

while

b)

if

c)

so

d)

or

31.

___ I have finished my work, I will take you to the mall.

a)

Before

b)

Since

c)

During

d)

After

32.
_______ you finish typing that report, make five copies of it and give it to aloof the officers.
a)
A. While
b)
B. When
c)
C. But
d)
D. Although
33.

Richard called me _______I was parking the car.

a)

when

b)

while

c)

as soon as

34.

Water pollution has _______ many diseases for plants, animals and especially people.

a)

led

b)

made

c)

caused

d)

done

35.

Water pollution can put negative _________ on our health.

a)

effects

b)

affect

c)

affect

d)

effecting

36.

Any factories pollute the environment will be _______ heavily.

a)

canceled

b)

fined

c)

protected

37.

According to scientists, exhaust fumes are _________ our hometown.

a)

treating

b)

poisoning

c)

protecting

d)

helping

38.

plastic

a)

nhựa

b)

sắt

c)

gỗ

d)

thuỷ tinh

39.

dấu chân carboon

a)

carbon free

b)

carbon foot

c)

carbon footprint

d)

carbon dioxide

40.

sử dụng một lần

a)

one use

b)

single-use

c)

multiple-use

d)

many uses

41.

pick up

a)

xả rác

b)

nhặt

c)

quét

d)

làm bẩn

42.

gặp nguy hiểm, có nguy cơ bị tuyệt chủng

a)

endangered

b)

danger

c)

dangerous

d)

endanger

43.

species

a)

con

b)

cái

c)

loài

d)

loại

44.

lửa trại

a)

campfire

b)

camp fire

c)

firecamp

d)

campingfire

45.

sự biến mất của các loài đang có nguy cơ tuyệt chủng

a)

endangered species loss

b)

loss endangered species

c)

loss endanger species

d)

loss species endanger

46.

product nghĩa là gì?

a)

người bán

b)

sản phẩm

c)

khách hàng

d)

dịch vụ

47.

rác thải

a)

rubbish

b)

plastic bag

c)

dump

d)

product

48.

litter

a)

xả rác

b)

nhặt rác

c)

đổ rác

d)

tái chế rác

49.

hệ sinh thái

a)

habit

b)

habitat

c)

ecosystem

d)

greenhouse

50.

sự ô nhiễm

a)
environment
b)
pollution
c)
beauty
d)

population

51.

habitat

a)

môi trường sống

b)

hệ sinh thái

c)

loài

d)

tuyệt chủng

52.

sự tuyệt chủng

a)

pollution

b)

extinction

c)

habitat

d)

population

53.

môi trường (adj)

a)

environment

b)

environmental

c)

environmentally

d)

environmentalist

54.

bảo vệ (v)

a)

protect

b)

protector

c)

protection

d)

protective

55.

bảo vệ (n)

a)

protective

b)

protected

c)

projector

d)

protection

56.

khí CO2

a)

carbon

b)

carbon footprint

c)

carbon dioxide

d)

carbonic

57.

sự ấm lên toàn cầu

a)

globe warming

b)

warm the globe

c)

global warming

d)

warm the globe up

58.

absorb

a)

hấp thụ

b)

nhả ra

c)

thu hút

d)

duy trì

59.

What is this?

a)

3Rs

b)

3R

c)

R3s

60.
  1. We should ______ our carbon footprint to protect the environment.

a)

A. pollute

b)

B. protect

c)

C. reduce

d)

D. endanger

61.
  1. You should turn off devices that you are not using to ______ electricity.

a)

A. save

b)

B. reuse

c)

C. release

d)

D. turn

62.
  1. "Carbon footprint" is the amount of carbon dioxide that we ______ into the environment.

a)

A. stop

b)

B. plant

c)

C. recycle

d)

D. release

63.
  1. People shouldn't throw away single-use products but ______ them.

a)

A. endanger

b)

B. recycle

c)

C. protect

d)

D. pollute

64.
  1. They can ______ campfires on the beach near the hotel.

a)

A. volunteer

b)

B. cut

c)

C. build

d)

D. litter

65.
  1. The people in my village often ______ down trees to build houses.

a)

A. cut

b)

B. pollute

c)

C. avoid

d)

D. release

66.
  1. You shouldn't dump the rubbish into the river to reduce ________ pollution 

a)

A. air

b)

B. water

c)

C. carbon

d)

D. campfire

67.
  1. Forests help release oxygen and absorb __________________

a)

A. carbon dioxide

b)

  B. global warming 

c)

C. environmental protection

d)

D. water pollution

68.
  1. We can take part in activities like picking ______ and planting trees to protect nature and the environment.

a)

A. up

b)

B. about

c)

C. down

d)

D. to

69.
  1. A number of cleaning products contain ______ chemicals

a)

A. safeful

b)

B. helpful

c)

C. harmful

d)

D. hopeful

70.
  1. The gases from the exhausts of cars have also increased ______ pollution in most cities.

a)

A. land

b)

B. sand

c)

C. water

d)

D. air

71.
  1. The death rate would ______ if hygienic conditions were improved.

a)

A. decrease

b)

B. increase

c)

C. be

d)

D. up

72.
  1. When radiation goes into the land, air or water, it is called radioactive ______.

a)

A. pollution

b)

B. polluted

c)

C. pollutants

d)

D. polluting

73.
  1. Too much use of electric lights in cities may ______ light pollution.

a)

A. go

b)

B. result

c)

C. cause

d)

D. lead

74.
  1. ______ pollution is the contamination of lakes, rivers, oceans, or groundwater, usually by human activities

a)

A. Soil

b)

B. Air

c)

C. Noise

d)

D. Water

75.
  1. Land pollution happens when human activities ______ the Earth's surface.

a)

A. cover

b)

B. destroy

c)

C. damages

d)

D. cause

76.
  1. The sight of too many telephone poles, advertising billboards, overhead power lines, or shop signs may cause ______ pollution.

a)

A. visual

b)

B. vision

c)

C. visualize

d)

D. visible

77.
  1. People don't care much about the environment, so they keep ______ it worse.

a)

A. made

b)

B. making

c)

C. to make

d)

D. make

78.
  1. Land pollution is responsible for damage done ______ natural habitat of animals.

a)

`A. with

b)

B. for

c)

C. to

d)

D. of

79.
  1. Americans throw ______ twenty-eight and a half million tons of plastic in landfills every year.

a)

A. in

b)

B. at

c)

C. to

d)

D. away

80.
  1. Scientists have come up ______ new ways of saving energy.

a)

A. with

b)

B. on

c)

C. to

d)

D. out

81.
  1. Thousands of people were exposed ______ radiation when the nuclear plant exploded.

a)

A. in

b)

B. at

c)

C. to

d)

D. away

82.
  1. Waste water from many factories which is dumped ______ water bodies directly cause water pollution.

a)

A. on

b)

B. into

c)

C. out

d)

D. by

83.
  1. ______ fumes from these vehicles are serious air pollutants.Waste

a)

A. Poisonously

b)

B. Poison

c)

C. Poisonous

d)

D. Poisons

84.
  1. Air pollution occurs when the atmosphere contains gases, dust, or fumes in ______ amounts.

a)

A. unharmed

b)

B. harmless

c)

C. harm

d)

D. harmful

85.
  1. She suffered ______ a serious disease because of drinking contaminated water for a long time.

a)

A. in

b)

B. at

c)

C. to

d)

D. from

86.
  1. We hope more people join our ______ programme.

a)

A. environment

b)

B. environmental

c)

C. environmentalist

d)

D. environmentally

87.
  1. Harmful gases like nitrogen oxides and sulphur oxides are ______ into the atmosphere during the burning of fossil fuels

a)

A. releases

b)

B. released

c)

C. release

d)

D. releasing

88.
  1. The ______ of air pollution are alarming.

a)

A. effective

b)

B. affect

c)

C. effect

d)

D. effects

89.
  1. You should drive carefully ______ the road is slippery.

a)

A. because

b)

B. while

c)

C. although

d)

D. after

90.
  1. I sleep with the window open ______ it's really cold.

a)

A. if

b)

B. unless

c)

C. as

d)

D. before

91.
  1. We will clean up the beach ______ it stops raining.

a)

A. while

b)

B. though

c)

C. since

d)

D. as soon as

92.
  1. Mary plays with the boy ______ he is naughty.

a)

A. although

b)

B. until

c)

C. when

d)

D. because

93.
  1. He won't get paid for time off ______ he hasn't got a doctor's note.

a)

A. unless

b)

B. till

c)

C. because

d)

D. if

94.
  1. She went to the gym ______ she had finished her work.

a)

A. after

b)

B. before

c)

C. unless

d)

D. while

95.
  1. Don't drink too much water ______ you are having a meal.

a)
  1. A. till

b)
  1. B. until

c)
  1. C. while

d)
  1. D. even though

96.
  1. Don't forget to turn off the lights ______ you go out.

a)

A. though

b)

B. because

c)

C. after

d)

D. before

97.
  1. I don't know the reason ______ you didn’t go to school.

a)

A. what

b)

B. whose

c)

C. why

d)

D. where

98.
  1. He was talking about the film ______ he saw last night.

a)

A. that

b)

B. how

c)

C. who

d)

D.whom

99.
  1. ______ thermal pollution happens, the water temperature in streams, rivers, lakes, or oceans changes.

a)

A. Until

b)

B. When

c)

C. Before

d)

D. As soon as

100.
  1. Noise pollution occurs ______ there are too many loud sounds in the environment.

a)

A. while

b)

B. and

c)

C. because

d)

D. so

101.
  1. The roads were slippery ______ it started to rain.

a)

A. so

b)

B. as soon as

c)

C. when

d)

D. before

102.
  1. Renewable ______ of energy, such as solar and wind power, are crucial for a sustainable future.

a)

A. sources

b)

B. pollutions

c)

C. consumption

d)

D. permission

103.
  1. We should be mindful of our carbon ______ and seek ways to reduce it.

a)

A. handprint

b)

B. printer

c)

C. fingerprint

d)

D. footprint

104.
  1. The loss of habitat and climate change contribute to the ______ of species.

a)

A. extinct

b)

B. exit

c)

C. extinction

d)

D. extincted

105.
  1. It is important to contain and properly dispose of hazardous materials to prevent environmental contamination. CLOSEST

a)

A. crucial

b)

B. unnecessary

c)

C. unimportant

d)

D. careful

106.
  1. The government should strictly regulate and permit industrial activities to minimize their impact on the environment. CLOSEST

a)

A. dismiss

b)

B. allow

c)

C. protect

d)

D. reduce

107.
  1. The residents of the community actively participate in environmental conservation efforts.CLOSEST

a)

A. throw

b)

B. ignore

c)

C. impact

d)

D. take part

108.
  1. Protecting the environment is crucial for maintaining a diverse range of ecosystems.CLOSEST

a)

A. varied

b)

B. same

c)

C. similar

d)

D. polluted

109.
  1. The release of toxic chemicals into the environment poses a serious threat to ecosystems and human

health. CLOSEST

a)

A. cause

b)

B. deadly

c)

C. coral

d)

D. volunteer

110.

We should save energy by using energy-efficient appliances and adopting sustainable practices. OPPOSITE

a)

A. store

b)

B. waste

c)

C. renew

d)

D. resident

111.

It is our responsibility to protect the environment and preserve it for future generations.OPPOSITE

a)

A. destroy

b)

B. cover

c)

C. little

d)

D. contain

112.

Implementing measures to reduce greenhouse gas emissions is crucial in combating climate change.OPPOSITE

a)

A. decrease

b)

B. cut down

c)

C. minimize

d)

D. increase

113.

Remember to turn off lights and electronic devices when they are not in use to conserve energy.OPPOSITE

a)

A. switch on

b)

B. tum down

c)

C. go over

d)

D. go away

114.

Cleaning up polluted water sources is a challenging task that requires collaboration and expertise.OPPOSITE

a)

A. contaminated

b)

B. forget

c)

C. pure

d)

D. non-living

115.

  1. You should wait here when / until/ while your parents come back.



(a)  

116.

  1. My sister was sleeping when / as soon as/ while I was studying for the test last night.



(a)  

117.
  1. As soon as / While/ After I left home for school, It rained heavily.

a)
  1. As soon as

b)
  1. While

c)
  1. After

118.
  1. The train arrived while / as soon as/ before Elle was having lunch.

a)
  1. while

b)
  1. as soon as

c)
  1. before

119.

Because / Although/ If the water is very cold in January, they go swimming anyway

a)

because

b)

although

c)

if

120.
  1. My father goes jogging every morning before / after/ until he gets ready for work.

a)

before

b)

after

c)

until

121.
  1. I learned a lot about wildlife until / after/ as soon as I visited Cuc Phuong National Park yesterday.

a)

until

b)

after

c)

as soon as

122.
  1. I usually drink a glass of warm milk after/ until / before I go to bed.

a)

after

b)

until

c)

before

123.
  1. Who takes care of the baby when / after/ before your mother is away?

a)

when

b)

after

c)

before

124.
  1. After / Before / While we receive your confirmation email, we will send you a link to download the program.

a)

after

b)

before

c)

while

125.
  1. I have to wait while / before / until my mum comes home.

a)

while

b)

before

c)

until

126.
  1. Before/When / While she is ready, we will leave.

a)

before

b)

when

c)

while

127.
  1. I'll send you a text message until / as soon as / before I hear from Nam.

a)

until

b)

as soon as

c)

before

128.
  1. Before/After / While she goes, she will turn off all the computers.

a)

before

b)

after

c)

while

129.
  1. He will send them an email before / until / as soon as he arrives in London.

a)

before

b)

until

c)

as soon as

130.
  1. I will give you my reply before /by / this time I leave this afternoon.

a)

before

b)

by

c)

this time

131.
  1. I'll go online while / as soon as / until I get home.

a)

while

b)

as soon as

c)

until

132.
  1. Before/Until / When Mr. Tan phones, please let me know.

a)

before

b)

until

c)

when

133.
  1. Let's play with the children after / until / while it is time to go.

a)

after

b)

until

c)

while

134.

What type of waste is the most harmful for marine life?

a)

metal

b)

plastic

c)

glass

d)

paper

135.

Which is not part of the Three R's of Environment?

a)

Reduce

b)

Reuse

c)

Recycle

d)

Repair

136.

môi trường sống

(a)  

137.

Water pollution has _______ many diseases for plants, animals and especially people.

a)

led

b)

made

c)

caused

d)

done

138.

Water pollution can put negative _________ on our health.

a)

effects

b)

affect

c)

affect

d)

effecting

139.

Any factories pollute the environment will be _______ heavily.

a)

canceled

b)

fined

c)

protected

140.

According to scientists, exhaust fumes are _________ our hometown.

a)

treating

b)

poisoning

c)

protecting

d)

helping

141.

________ pollution can directly cause hearing loss.

a)

Noise

b)

Water

c)

Light

d)

Land

142.

A lot of waste from hotels and factories is _____ into the lakes.

a)

dumped

b)

affected

c)

protect

d)

pollute

143.

Ships spill oil in oceans and rivers. This leads ________ the death of many aquatic animals and plants.

a)

in

b)

on

c)

to

d)

about

144.

The boy doesn’t go to bed ______.

a)

while his parents were arriving home

b)

when his parents will arrive

c)

until his parents arrive home

d)

by the time his parents arrived home

145.

_______, Joe stays in bed and reads magazines.

a)

Whenever raining

b)

As it will be raining

c)

When it will rain

d)

Whenever it rains

146.

______, the alarming clock woke him up.

a)

While my brother was sleeping

b)

As soon as my brother has slept

c)

Before my brother was sleeping

d)

By the time my brother sleeps

147.

She telephoned the police immediately ______ the robbery.

a)

until she saw

b)

as soon as she saw

c)

before she saw

d)

when she sees

148.

______ the work, he called me out for coffee.

a)

When he has finished

b)

While he is finishing

c)

After he had finished

d)

Before he will finish

149.

______ to the classroom after the break time, he found his bag was not there.

a)

While he is returning

b)

When he returned

c)

Before he had returned

d)

After he has returned

150.

______, we will leave.

a)

As soon as it has stopped raining

b)

Once it stopped raining

c)

When it had stopped

d)

While it was stopping raining

151.

I lock my bicycle ____ going to class.

a)

before

b)

while

c)

because

d)

who

152.

The thief broke in to his house ____ he was asleep.

a)

before

b)

although

c)

when

d)

if

153.
The tiger went hunting __________ it got dark.
a)
if
b)
when
c)
until
154.

hệ sinh thái

a)

habit

b)

habitat

c)

ecosystem

d)

greenhouse

155.

sự ô nhiễm

a)
environment
b)
pollution
c)
beauty
d)

population

156.

habitat

a)

môi trường sống

b)

hệ sinh thái

c)

loài

d)

tuyệt chủng

157.

sự tuyệt chủng

a)

pollution

b)

extinction

c)

habitat

d)

population

158.

môi trường (adj)

a)

environment

b)

environmental

c)

environmentally

d)

environmentalist

159.

bảo vệ (v)

a)

protect

b)

protector

c)

protection

d)

protective

160.

Joey was playing the guitar .................... Danny was washing the dishes.

a)

while

b)

if

c)

so

d)

or

161.

She had an unpleasant experience ................. she was in Thai Lan.

a)

when

b)

or

c)

by

d)

but

162.

I lock my bicycle ____ going to class.

a)

before

b)

while

c)

because

d)

who

163.

I bring my own lunch ____ the food in the canteen is terrible.

a)

unless

b)

while

c)

since

d)

whom

164.

If the temperature _____________ rising, the polar ice caps will melt.

a)

kept

b)

keeps

c)

has kept

d)

will keep

165.

Because of _______ pollution, the bicycle may someday replace the automobile.

a)

water

b)

air

c)

noise

d)

soil

166.

Students should learn some practical ways that help to __________ pollution.

a)

save

b)

cure

c)

reduce

d)

shorten

167.

__________ she left the party, Jenny said goodbye to the host.

a)

Before

b)

After

c)

As soon as

d)

Until

168.

People think that global warming ____________ lots of problems in the future.

a)

causes

b)

is causing

c)

will cause

d)

has caused

169.

They travelled across India, and then flew on to Japan.

a)

They travelled across India as soon as they flew on to Japan.

b)

After flying on to Japan, they travelled across India.

c)

They didn't travel across India until they flew on to Japan.

d)

After travelling across India, they flew on to Japan

170.

Parents should teach children not to __________ wastes on the road.

a)

litter

b)

poison

c)

cause

d)

pick up

171.

It was not until midnight that the noise next door stopped.

a)

The noise next door stopped before it was midnight.

b)

The noise next door only stopped at midnight.

c)

The next-door neighbours made noise after midnight.

d)

I wanted the noise next door to stop before midnight.

172.

Nick is reading a novel _______ Jack is reading a cartoon.

a)

while

b)

if

c)

but

173.

Which of the following is the greenest form of transport?

a)

bus

b)

bicycle

c)

motorbike

174.

______ trees and burning forests destroy a lot of wildlife habitats.

a)

watering

b)

cleaning up

c)

cutting down

175.

The panda’s natural ______ is the bamboo forest.

a)

habitat

b)

ecosystem

c)

area

176.

I was not at home ______ he came to see me yesterday.

a)

while

b)

when

c)

if

177.

We cleaned up everything at the campsite ______ we left.

a)

until

b)

while

c)

before

178.

What is that?

a)

plastic bags

b)

plastic rubbish

c)

plastic

179.

san hô

a)

carrot

b)

coral

c)

toxic

180.

chất

a)

pollution

b)

substance

c)

subscribe

d)

resident

181.

sewage

a)

chất thải

b)

cái chết

c)

công nghệ

d)

sự ô nhiễm

182.

Don't go out ___ you've finished your work.

a)

until

b)

while

c)

where

d)

because

183.

Make sure you close all the windows ___ it starts to rain.

a)

until

b)

before

c)

while

d)

after