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UNIT 9
UNDERSEA WORLD
A. MULTIPLE CHOICES:
I/ Choose the word whose underlined part has a different pronunciation from the others in each
group:
1/ A. sea

B. ocean

C. cheap

D. teach

2/ A. word

B. work

C. worm

D. world

3/ A. desks

B. parks

C. pays

D. effects

4/ A. govern


B. secret

C. between

D. prefer

9/ A. messages

B. choices

C. pollutes

D. classes

10/ A. oversized

B. cared

C. filled

D. minded

II/ Choose the word whose main stress is placed differently from the others in each group:
1/ A. mystery

B. understand

C. overcome


C. various

D. exhausted

6/ A. offend

B. insult

C. baby

D. sparkling

7/ A. inhabit

B. natural

C. finally

D. evidence

8/ A. biodiversity B. international C. sophisticated D. independently
9/ A. complete

B. reveal

C. surface

10/ A. indication

B. understanding

sophisticated tools.
A. passed

B. run

C. flown

D. conquered

5/ Today’s scientists have overcome many of the challenges of the depth by using more
sophisticated tools.
A. summons

B. dare

C. objection

D. stimuli

6/ Today’s scientists have overcome many of the challenges of the depth by using more
sophisticated tools.
A. complicated B. worldly

C. experienced D. aware

7/ They can send submarines and devices to investigate the ocean depths, taking photographs
and samples of animal life to bring back to the surface for further study.
A. trace

B. explore

IV/ Select the antonym of the following bold and underlined word in each sentence in the unit:
1/ For centuries, people have been challenged by the mysteries that lie beneath the blue depths of the
ocean.
A. overhead

B. top

C. over

D. high


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2/ For centuries, people have been challenged by the mysteries that lie beneath the blue depths of the
ocean.
A. lengths

B. narrowness

C. width

D. surface

3/ How different a picture we now have of the ocean as the sea has begun to reveal its secrets.
A. public

B. opening

C. knowledge


A. educated

B. healed

C. defended

D. brought

8/ Fish only species that are not of concern, threatened or endangered.
A. bettered

B. born

C. safeguarded D. taught

9/ Keep only fish that you will eat; release the rest.
A. catch

B. hold

C. take

D. have

10/ Be a smart shopper, choose your seafood responsibly.
A. soft

B. weak

C. untidy

B. dependence C. dependable D. dependant

5/ My grandpa's attitudes are very _______, considering his age.
A. modern

B. modernity

C. modernize

D. modernization


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6/ The sea bed _______ here to 5000 meters.
A. deep

B. deepens

C. deeper

D. depth

7/ You've got to try to keep _______ as you grow older.
A. act

B. active

C. action

D. actor

A. could

B. should

C. did

D. would

2/ The doctors are doing all that they _______, but she's still not breathing properly.
A. can

B. could

C. shall

D. might

3/ We _______ to have agreed without knowing what it would cost.
A. shouldn’t

B. couldn’t

C. didn’t

D. oughtn't

4/ He said he _______ see his brother the next day.
A. ought to

B. should


B. unless

C. supposing

D. provided

9/ I wouldn't work for them _______ they paid me twice my current salary.
A. if

B. provided

C. in case

D. as long as

10/ We’ll buy everything you produce, _______ of course the price is right.


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A. unless

B. as long as

C. provided

D. if

VII/ Find the one mistake (A, B, C or D) in these sentences and then correct them:
1/ There are, (A) unless you don't mind me (B) saying so, one or two (C) problems (D) with this plan.

- to underlie- underlay- underlain (v.): nằm dưới, ở dưới
- seaward (n.): hướng biển; (adv.): về hướng biển
- to subdivide (v.): chia nhỏ ra
- ridge (n.): chóp, chỏm, ngọc, đỉnh (núi)
- basin (n.): chỗ trũng, lòng chảo; (địa chất) lưu vực; vịnh nhỏ
- tip (n.): đầu, đỉnh, chóp
- expanse (n.): dải, dải rộng (đất...)
1/ A. Sea

B. Ocean

C. Lake

D. River

2/ A. it

B. whom

C. that

D. which

3/ A. is

B. lies

C. runs

D. stands


D. almost

8/ A. in

B. at

C. from

D. between

9/ A. to

B. of

C. with

D. by

10/ A. shape

B. face

C. size

D. side

11/ A. and

B. but


B. area

C. place

D. point

Đáp án
UNIT 9
UNDERSEA WORLD
A. MULTIPLE CHOICES:
I/ Choose the word whose underlined part has a different pronunciation from the others in each group:
1/ B. ocean ; 2/ C. worm
; 3/ C. pays ; 4/ C. lesson ; 5/ B. Atlantic
6/ A. gun ; 7/ D. supply ; 8/ A. depth
; 9/ C. pollutes
10/ D. minded
II/ Choose the word whose main stress is placed differently from the others in each group:
1/ A. mystery
; 2/ B. paragraph ; 3/ D. delete
; 4/ D. forget
5/ D. exhausted ; 6/ A. offend
; 7/ A. inhabit
8/ C. sophisticated ; 9/ C. surface ; 10/ A. investigate
III/ Select the synonym of the following bold and underlined word in each sentence in the unit:


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1/ D. painting ; 2/ B. dissimilar ; 3/ A. spread
4/ D. conquered

6/ B. beginning ; 7/ D. almost
; 8/ C. from ; 9/ A. to
10/ D. side ; 11/ A. and ; 12/ C. defining ; 13/ B. depth
14/ D. because of; 15/ D. point


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Bài tập tiếng Anh lớp 10 Unit 9: Undersea World có đáp án
I/ Match the sentences, clauses or phrases in column A with the ones in column B to make meaningful
sentences:
A
1/ The engineer _____ is my father’s friend.

B
A/ which makes them bored to death.

2/ Mr. Cao and Ms. Ngoc, _____ have just B/ who can answer these questions
traveled to Paris.
3/ The road _____ is not very long.

C/ which she dropped this morning.

4/ Our neighbors have nothing to do, _____.

D/ who constructed that house

5/ Jackie Chang the gentlest man _____

E/ which is a famous football club in England.

7/ What I have to say to Amy doesn't concern you.
8/ There wasn't enough coal during the war, so we had to use it sparingly.
9/ She always wore a coat, even in the heat of summer.
10/ A couple of people objected to the proposal, but the vast majority approved of it.
III/ Supply the correct form of the word in brackets:
1/ He suffers from a (nerve) _______ disorder.
2/ I worry about the (destruct) _______ effect that violent films may have on children.
3/ (Mystery) _______, the light came on, although no one was near the switch.
4/ The river froze to a (deep) _______ of over a meter.
5/ Children are encouraged to take an (investigate) _______ approach to learning.
6/ Disneyworld is one of Florida's major (tour) _______ attractions.
7/ Tyler is remarkably (world) _______-wise for such a young girl.
8/ He never goes out without his security men in (attend) _______.
9/ There's not enough (interact) _______ between the management and the workers.
10/ Commodity prices can be a useful (indicate) _______ of inflation, he claimed.
IV/ Complete the second sentence so that it has a similar meaning to the first one, using the word
in brackets:
1/ We might win $ 5000, and then we’d travel to Thailand. (if)
→ We’d travel __________________________________________ $ 5000.
2/ His electric fan is not working and he feels hot. (would)
→ If his

_______________________________________________ so hot.

3/ They should give up smoking to protect their health. (would)
→ If they ___________________________________ improve their health.
4/ Perhaps we would go to Hanoi to visit our friends. (Went)
→ If we ________________________________________ visit our friends.
5/ I think you should pay attention to the lessons in class. (You)
→ If I _______________________________________ the lessons in class.

5/ I brought him some sandwiches because I thought he _______ be hungry.
6/ Do the best you _______ - I realize the circumstances are not ideal.
7/ They knew there _______ be trouble unless the report was finished by the next day.


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8/ _______ she look lovely in that hat?
9/ The cause of the accident _______ never be discovered.
10/ When I was younger I _______ stay up all night and not get tired.
VII/ Rewrite the sentences using the word in brackets, beginning as shown:
1/ There’s no point in asking Ms. Hoa to kelp. (worth)
→ It _______________________________________ Ms. Hoa to help.
2/ Linh couldn’t get her parents’ permission to buy a cell phone. (let)
→ Linh’s parents ________________________________ a cell phone.
3/ “Where are you going, Phong?” asked Loan. (where)
→ Loan asked ____________________________________________.
4/ Khanh’s behavior at the party annoyed us. (Khanh)
→ We were _____________________________________ at the party.
5/ It’s a good thing you lent me some money or I would have had to go to the bank. (you)
→ I would have had _____________________________ some money.
6/ Huy didn’t listen to what his teacher told him. (notice)
→ Huy took ________________________________________ advice.
7/ His sister had to finish the homework and write an assignment as well. (addition)
→ His sister had to ____________________________ an assignment.
8/ When I was a child, I played football almost every day. (my)
→ I played football ________________________________________.
9/ Let’s visit the museum this afternoon. (go)
→ Why _____________________________________ this afternoon?
10/ Trang found it difficult to concentrate on her lesson because of the noise. (difficulty)
→ Trang ________________________________ because of the noise.

3

4

5

6

7

8

9

10

D

H

J

A

F

G

C



IV/ Complete the second sentence so that it has a similar meaning to the first one, using the word
in brackets:


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1/ We’d travel to Thailand if we won $ 5000.
2/ If his electric fan were working, he would not feel so hot.
3/ If they gave up smoking, they would improve their health.
4/ If we went to Hanoi, we would visit our friends.
5/ If I were you, I would pay attention to the lessons in class.
6/ If her brother used computer better, he would work for that company.
7/ If our parents had enough money, we could make a trip to New York.
8/ If I were a millionaire, I could buy a villa in Ho Chi Minh city.
9/ We won’t go out unless it stops raining.
10/ He wouldn’t write if he didn’t hear some news.
V/ Supply the correct verb tense, paying careful attention to the tense sequence:
1/ comes

; 2/ were

; 3/ won’t have ; 4/ would have written

5/ would/ could catch

; 6/ will go ; 7/ had written

8/ would be ; 9/ saw ; 10/ is
VI/ Complete the following sentences, using “WILL, WOULD, SHOULD, CAN, COULD, MAY,
MIGHT, DON’T, DOESN’T, WAS”. Each word is used only once:

1 – 3 – 5 – 4 – 6 – 2 – 7 – 9 – 11 – 8 – 10 – 12


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UNIT 9: UNDERSEA WORLD
I. PRONUNCIATION:
1. a. here
b. clear
c. idea
d. there
2. a. tour
b. sure
c. pair
d. poor
3. a. cheer
b. where
c. care
d. pair
4. a. jellyfish
b. submarine
c. magazine
d. conservation
5. a. cancer
b. damage
c. defense
d. widen
II. VOCABULARY AND GRAMMAR:
6. One ocean is divided ………………….five different parts: the Pacific, Atlantic, Indian,
Antarctic and Arctic Oceans.
a. with

d. large
12. The scientists have collected different ………………to analyze for their experiment.
a. plants
b. animals
c. submarines
d. samples
13. It’s raining. You should ……………..
a. take an umbrella
b. see a doctor
c. take a rest d. pay by check
14. It is too far to walk. You should …………….
a. ask a policeman
b. take a taxi
c. call the police
d. wear an
overcoat
15. If I had a typewriter, I ………………it myself.
a. will type
b. would type c. would have typed
d. had typed
16. If I …………….a big prize in a lottery, I would give up my job.
a. win
b. won
c. will win
d. had won
17. I could get a job easily if I had had a degree.
A
B
C
D

b. knew
c. had known
d. didn’t know
25. If he worked more slowly, he …………….so many mistakes.
a. would make b. will make
c. wouldn’t make d. would have made
26. I shouldn’t drink that wine if I ………….you.
a. am
b. was
c. had been
d. were
27. Most of the earth surface ……………by water.
a. is covered
b. covers
c. covered
d. cover
28. Sperm whales are the …………..animals on earth that have teeth.
a. big
b. biggest
c. bigger
d. most big
29. What a beautiful view. You should ……………a photograph.
a. make
b. give
c. bring
d. take
30. He might get fat if he …………….smoking.
a. stops
b. stop
c. stopped

c. If he answered all questions, he wouldn’t fail the exam.
d. If he had answered all questions, he wouldn’t have failed the exam.
43. She forgets her visa that’s why she comes back.
a. If she doesn’t forget her visa, she won’t come back.
b. If she forgot her visa, she would come back.
c. If she had forgotten her visa, she would have come back.
d. If she didn’t forget her visa, she wouldn’t come back.
44. If I knew his address, I ………….it to you.
a. will give
b. would give c. would have given
d. had given
45. If you …………..under the mosquito net, you wouldn’t be bitten so often.
a. sleep
b. sleeps
c. had slept
d. slept


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Bài tập tiếng Anh lớp 10 unit 9 có đáp án
UNIT 9: UNDERSEA WORLD
I. Circle the word that is pronounced differently from the others.
1. bear

leave

peace

cheap


ourrent

6. where

share

wear

fear

7. cheer

feed

deep

sea

8. pear

clear

sphere

idea

9. heir

dear

2. Community police have made a very positive……………..to crime prevention.
3. This new discovery……………..traditional beliefs.
4. They are investigating the……………..disappearance of a young woman.
5. Seventy-five percent of the earth surface is……………..by water.
6. The power station has been shut down for essential……………..
7. The……………..of the seabed is being carried out.
8. Sperm whale populations are at risk due to hunting and their accidental……………. in fishing
nets.
9. By the age of eighteen he was complete……………..of his parents.
10. The government has just set up a wildlife……………..project.


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III. Choose the word or phrase that could best explain the underlined word or phrase in each
sentence.
1. If modern technology did not exist, we would never have such precious information.
a. valuable

b. precise

c. confidential

d. detailed

2. Some marine animals are dangerous to humans.
a. living in the mountain

b. living in the ocean

c. living in the forest

d. the time of growing up
7. We had an accidental meeting with an old friend at the party last night.
a. unpleasant

b. unexpected

c. unlucky

d. unacceptable

8. How many offspring does a sperm whale usually have?
a. eggs

b. mammals

c. babies

d. diets

IV. Complete these sentences with should/ shouldn’t + infinitive (or a passive form) using one of
these verbs: include, keep, meet, refrigerate, stay, break, tell, warn, take, play.


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1. Those boys……………..football on the street. It’s very dangerous.
2. This medicine……………..in a cool place.
3. You……………..him about this deal. It’s supposed to be absolutely confidential.
4. Here’s someone you really……………..
5. She……………..in bed all day unless she’s ill.
6. According to the label, the jam……………..after opening.

3. Peter’s got a very bad cold.
…………………………………………………………………………………………...
4. Ann’s phone bill was enormous! Three hundred pounds!
…………………………………………………………………………………………...
5. Keith wants to drive home, but he hasn’t got his glasses.
…………………………………………………………………………………………...
6. One of my teeth is loose.
…………………………………………………………………………………………...
7. I’ve lost my cheque book and credit cards.


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…………………………………………………………………………………………...
8. My shoes have got a hole in them. I only bought them last week!
…………………………………………………………………………………………...
9. My children spend all their pocket money on sweets.
…………………………………………………………………………………………...
10. I’m always tired because I’ve been working very hard.
…………………………………………………………………………………………...
VI. Put the verb into the correct form.
1. If my grandfather…………….(be) still alive, he would be a hundred today.
2. I…………….(offer) to give you a lift if I had my car here.
3. Where…………….(you/ choose) if you could live anywhere in the world?
4. If you…………….(drive) from London to Glasgow, which way would you go?
5. If I…………….(live) out of town, I…………….(take) up the garden.
6. We…………….(not have) any money if we…………….(not work)
7. I…………….(not mind) living in England if the weather…………….(be) better.
8. If I were you, I…………….(not wait), I…………….(go) now.
9. If we…………….(have) more reliable car, we…………….(drive) to Spain rather than fly.
10. If Mr Morgan…………….(be) still head teacher, he…………….(not permit) such bad behavior.


5. covered

8. entrapment

3. challenged

6. maintenance

9. independent

III. 1. a

2. b

3. d

4. d

5. b

6. a

7. b

8. c

IV.
1. shouldn’t play


9. I think you should tell them to buy fruit.
10. I don’t think you should work so hard.
VI.
1. Was/ were

6. wouldn’t have – didn’t work

2. would offer

7. wouldn’t mind – was/were

3. did you choose

8. wouldn’t wait – would go

4. drove/ were driving

9. had – would drive

5. lived – would take/ could take

10. was/ were – wouldn’t permit


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Bài tập tiếng Anh lớp 10 unit 9 có đáp án
I. Comment on these situations. Use a type 2 conditional.
1. Alan always overeats at lunch because he never cats breakfast.
If Alan ate breakfast, he wouldn’t overeat at lunch.

4. A: What’s your idea of the most perfect place for a holiday?
B: I think I………………...(go) to the Seychelles if I………………...(have) the money.
5. A: Do you and your brother get together very oftern?
B: No, we………………...(see) each other more if we………………...(live) closer, but he lives in
Scotland.
6. A: Is it going to be a big party?
B: Yes, if most people………………...(come), there………………...(be) about 100 of us.
7. A: Let’s go to the beach.
B: No, it’s too cold. If it………………...(be) warmer, I………………...(not mind) going to the
beach.
8. A: I don’t know what happened to my dictionary. I’ve looked everywhere for it.
B: What………………...(you/do) if you………………...(not find) it?
9. A: Do you have any plans for next year?
B: Well, I………………...(travel) if I………………...(can afford) it.
But I don’t have any money.
10. A: Why do you read newspapers?
B: Well, if I………………...(not read) newspapers, I………………...(not know) what was
happening in the world.
III. Choose the correct completion.
1. I’m not an astronaut. If I……………an astronaut, I……………my camera with me on the rocket
ship.
a. am/ will take

b. was/ would take

c. were/ had taken

d. was/ would have taken

2. Don’t throw aerosol into a fire. An aerosol……………if you……………it into a fire.

a. is

b. was

c. had been

d. would be

6. If you……………all of my questions, I……………anything to help you.
a. don’t answer/ can’t do

b. didn’t answer/ won’t do

c. wouldn’t answer/ can’t do

d. wouldn’t answer/ couldn’t do

7. If I……………wings, I……………take an airplane to fly home.
a. have/ won’t have to

b. had/ wouldn’t have

c. have/ will have to

d. had/ didn’t have to

8. ‘Here’s my phone number.’
thanks, I……………you a call if I……………some help.
a. will give/ will need


of sharks may be 60 feet long and weigh 15 tons. Unlike many other kinds of fish, sharks do not have
bone. Their bodies are made up of a kind of tough white flexible material (called cartilage). Sharks do
not have ears. However, they ‘hear’ sounds and movements in the water. Any sound or movement
makes the water vibrates. Sharks can feel these vibrations, and they help the sharks find food. Sharks
use their large eyes to find food, too. Most sharks see best in low light. They often hunt for food at
dawn, in the evening, or in the middle of the night.