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ENGLISH 10 - UNIT 9: UNDERSEA WORLD
I. Phonetics:
A. Choose the word that has the underlined part pronounced differently from the rest:
1. a. dear

b. clear

c. year

d. bear

2. a. here

b. where

c. wear

d. pair

3. a. floor

b. poor

c. usually

d. casual

4. a. jealous



8. a. organism

b. environment

c. temperature

d. satellite

9. a. carnivore

b. entrapment

c. technology

d. Atlantic

10. a. secret

b. ocean

c. migrate

d. herbicide

II. Choose the best answer:
11. She needs a change. She ………… go away for a few days
a. may

b. might

d. destructively

15. The life …………….. of sperm whale can be up to seventy years.
a. period

b. length

c. distance

d. span

16. Many dolphins can dive to .................................................. of 200 meters.
a. depth

b. height

c. low

d. tall

17. The police have completed their ........................................... to the accident.
a. investigation

b. investigate

c. investigatory

d. investigator

18. This book will provide you ……………. all the information you need.

a. would know

b. has know

c. knows

d. knew

c. couldn't tell

d. might tell

22. You....................Mark. You know it's a secret.
a. should tell

b. shouldn't tell

23. 'Would you like some cake?' 'No, thanks. If I

………… cake, I....................fat.'

a. ate/ will get

c. mould eat/ could get

b. ate/ would get

d. am eating/ will get

24. She's been studying hard for the exam, so she.................to pass.

b

c

d

28. What would you do if you have chance to travel in the submarine?
a

b

c

d

29. Do you think I should apply to this job?
a

b

c

d

30. If modern technology didn't exist, we will never have these precious pictures.
a

b

c

are about 350 species of sharks that live in oceans over the world. All of the sharks are carnivores, but
most of them don't attack people. Some sharks are very small - the smallest shark is about 6 inches
long - about as long as your hand. But some sharks are very large. The largest species 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 wade. 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.
Nowadays scientists want to learn more about sharks for several reasons. For example, cancer is
common in many animals, including, people. However. it is rare in sharks. Scientists want to find out
why sharks almost never get cancer. Maybe this information can help people prevent cancer too.
1. According to the passage, sharks…………………….
a. are big mammals.

b. usually live in warm water. c. are meat eaters.

d. always attack humans.

2. How long is a smallest shark?
a. About 6 centimeters

b. As long as a hand

c. As one's long hand d. About 1,5 meters

3. The word 'they' in line 11 refers to……………………..
a. sharks

b. sounds


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Dolphins are known as cetaceans or marine (1)................they breathe air, they are warm-blood, and
they bear live young ones called (2) ................
The size of dolphins very greatly. The smallest dolphins is just about 50 kg in weight and 1.2 meters in
length (3) ................. the largest one can weigh up to 8.200 kg and is 10 meters long.
Dolphins are sociable creatures. They swim together in group known as (4) ..............They show great
ability in the water and you can often (5)........................ them playing (6).............. ships. Dolphins are
interested in humans and often rescue people in the sea (7)...............are in danger. They are intelligent
creatures and make sounds to

(8)................with each other. Scientists have studied dolphins

(9) ................many years and are now looking into the possibility of dolphins (10)............able to carry
out tasks under the sea.
1. a. fish

b. creatures

c. mammals

d. life

2. a. babies

b. calves

c. young

d. diets


d. next

7. a. which

b. they

c. when

d. who

8. a. talk

b. contact

c. communicate

d. connect

9. a. in

b. since

c. for

d. during

10. a. be

b. being