Name:____________________________ Class: ______
Review Final Tests
TEST MAY
I.

Choose the word that has a different stress pattern from that of the other words:
1. A. imaginary
B. advantageous
C. information
D. incredible
2. A. president
B. manager
C. spectator
D. counsellor
II. Choose the word whose underlined part is pronounced differently from that of the other words:
3. A. arrival
B. vital
C. tidal
D. citadel
4. A. same
B. taste
C. swallow
D. page
5. A. treatment
B. struggle
C. initiate
D. total
III. Choose the best answer A, B, C or D that best completes each sentence or substitutes the
underlined words or phrases:
6. Although we are aware ________ the importance of the environment, we still over-exploit it.
A. from
B. on
C. for
D. of
7. By the end of World War II, 179 ________ of the Red Cross had conducted 12,750 visits to POW
(prisoner of war) camps in 41 countries.
A. conferences
B. symbols
C. convention
D. delegates
nd
8. Vietnam has a lot of ________ players who won many gold medals in The 22 SEA Games.
A. outstanding
B. outstretching
C. outlying
D. outgoing
9. A defensive player may only hold, block or pull a (an) ________ who is touching or holding the ball.
A. audience
B. referee
C. opponent
D. goalie
10. If a defender ________ a foul within the five meter area that prevents a likely goal, the attacking
team is awarded a penalty throw or shot.
A. interferes
B. commits
C. punches
D. touches
11. It is a good book. I think it is interesting enough for you to ________.
A. put down
B. swallow
C. look up
D. understand
12. Who does the book belong ________?
A. for
B. on
C. to
D. through
13. Probability of extinction depends ________ both the population size and fine details of the
population demography.
A. on
B. in
C. from
D. for
14. It is reported that humans are the main reason for most species' declines and habitat ________ and
degradation are the leading threats.
A. destroy
B. destructive
C. destructor
D. destruction
15. Can you ________ what it would be like to live without books?
A. imagine
B. advise
C. describe
D. understand
16. They had to delay their trip because of the bad weather.
A. get through
B. put off
C. keep up with
D. go over
17. The Vietnamese were very satisfied with excellent performances of the young and ________
athletes.
A. energy
B. energetic
C. energetically
D. energize
18. After a draw, there are two overtime periods of three minutes each.
A. penalty
B. score
C. goal
D. tie
19. A spectacular art performance program with the ________ of 300 musicians and 500 artists was held
to welcome the success of the Games.
A. participate
B. participation
C. participants
D. participating
20. Thanh: “Lan's the best singer in our school”
1

Nadia: “________________________________.”
A. Yes, tell me about it.
B. That's OK.
C. I can't agree with you more
D. Yes, please.
21. Mai: “Do you want another serving of the chicken soup?”
Scott: “_________________.”
A. No way
B. No thanks
C. No comment
D. No longer
22. She ________ be ill. I have just seen her playing basketball in the school yard.
A. can't
B. needn't
C. shouldn't
D. mustn't
23. He is unreliable. What he says ________________________.
A. can believe
B. cannot believe
C. can be believe
D. cannot be believed
24. Never ________ till tomorrow what you can do today.
A. put off
B. put on
C. put away
D. put out
25. The crowd are becoming ________ excited.
A. less and least
B. less and most
C. more and more
D. more and most
26. It took me a very long time to ________ the shock of her death.
A. turn off
B. get over
C. take on
D. keep up with
27. “You ________ have cooked so many dishes. There are only three of us for lunch.”
A. wouldn't
B. oughtn't
C. needn't
D. couldn't
28. Cigarettes ________ at the bakery.
A. must buy
B. cannot buy
C. cannot be bought
D. shouldn't buy
29. Vietnam is now one of the ________ rivals in the Southeast Asian games.
A. strong
B. stronger
C. most strong
D. strongest
30. If you want to be healthy, you should ________ your bad habits in your lifestyles.
A. give up
B. throw away
C. cut down
D. go over
IV. Choose the correct sentence among A, B, C or D that is CLOSEST in meaning to each of the
following questions
31. Tom began playing trumpet 3 years ago.
A. Tom has played trumpet 3 years ago.
B. Tom has been playing trumpet for 3 years.
C. Tom played trumpet for 3 years
D. Tom had played trumpet 3 years ago.
32. You can look up this word in the dictionary.
A. There are a lot of words in the dictionary for you to look at
B. You can find the meaning of this word in the dictionary.
C. The dictionary contains a lot of words except the word you need.
D. You should buy this dictionary to find the word you need.
33. We missed the turning because we forgot to take the map with us.
A. If we were taking the map with us, we did not miss the turning.
B. Without the right map with us, we missed the turning.
C. Without the map with us, we missed the turning.
D. Having remembered the map with us, we would not miss the turning.
V. Choose the correct sentence among A, B, C or D that best combines each pair of the sentences in
the following questions
34. David drove so fast. It was very dangerous.
A. David drove so fast, then was very dangerous.
B. David drove so fast, which was very dangerous.
C. David drove so fast that was very dangerous.
D. David drove so fast and was very dangerous.
35. He can play piano now. He could play it when he was 5.
2

A. He has been able to play piano when he was 5.
B. He has been able to play piano since he was 5.
C. He has been able playing piano for 5 years.
D. He was able to play piano since he was 5.
VI. Choose the underlined part among A, B, C or D that needs correcting:
36. The environment where wild animals are living is now badly destroying.
A. where
B. are living
C. badly
D. destroying
37. Species become extinct or endangerment for a number of reasons, but the primary cause is the
destruction of habitat by human activities.
A. endangerment
B. reasons
C. destruction
D. activities
38. I can't find the letter I received from my boss some days ago. I might throw it into the waste paper
pin.
A. can't find
B. received
C. might throw
D. into
39. Modern motorcycles are lighter, faster and specialized than motorcycles of 25 years ago.
A. Modern
B. lighter
C. specialized
D. of
40. Everyone said they would attend his birthday party, but nobody turned on.
A. they
B. would attend
C. nobody
D. on
VII. Choose the word or phrase among A, B, C or D that best fits the blank space in the following
passage:
United Nations Children's Fund (UNICEF) organization was (41)  ________ by the United Nations in
1946 to provide food, clothing, and rehabilitative programs for European children brutalized by World War
II (1939- 1945). In 1950 the United Nations made UNICEF (42) ________  for improving the welfare of all
children worldwide. The organization's mission is threefold: (1) to ensure that basic nutrition, health, and
education needs of children are satisfied, (2) to give children the opportunity to (43) ________ their
potential, and (3) to create an international ethical Standard of behavior toward children.
Since 1950 UNICEF has focused primarily on promoting “sustainable development” in more than 150
(44) ________ nations. By providing community-based Services to teach community leaders to build wells
and sewage-disposal Systems, UNICEF has helped provide  millions of children with clean drinking water
and sanitary living conditions. By training educators to develop effective school programs, the organization
has enabled children around the world to benefit (45)________ a primary school education. In recognition
of its efforts, UNICEF received the 1965 Nobel Peace Prize.
41. A. found
42. A. responsible
43. A. increase
44. A. developed
45. A. with

B. built
B. responsibly
B. enlarge
B. developing
B. of

C. founded
C. responsibility
C. expand
C. development
C. about

D. made
D. responded
D. rise
D. develop
D. from

VIII. Choose the item among A, B, C or D that best answers the question about the passage:
Will people still read books 100 years from now? A few years ago, many people would have said no. It
seemed likely that computers and the Internet would replace books. Now, however, most experts think that
books are here to stay.
There are a number of reasons why computers will not replace books entirely. One reason is that books
on paper are much cheaper than computers. And books do not need a power source. You can read a book for
as long as you want and wherever you want. You never have to worry about losing power. Also, many
people feel more comfortable reading words in a book than reading words on a computer screen because it is
less tiring to the eyes.

3

Will books in the future be exactly the same as the books you can buy today? The answer to that
question is no. In the future, you may only need to buy one book. With this one book, you will be able to
read novels, plays, and newspapers. It will look like today's books, but it will be electronic.
One of the people working on the book of the future is Professor Joseph Jacobson from Massachusetts
Institute of  Technology. Professor Jacobson's electronic book will have a small button on the side. When
you press the button, words will instantly appear on the page. When you want to read a different story, you
can push the button again and a new story will quickly appear.
46. The phrase “are here to stay” in the first paragraph mostly means ______.
A. won't come
B. are nearby
C. won't disappear
D. are useless
47. Which of the following is TRUE according to the passage?
A. Reading today's books needs a power source.
B. Reading words on computer screen is tiring to the eyes.
C. In the future, computers will replace paper books completely.
D. Books will disappear completely sooner or later.
48. What will the book of the future look like?
A. It will look like a book you buy today.
B. It will look different from today's books.
C. It will look like a computer.
D. We don't know what it will look like.
49. The button on the side of the electronic book is used ________.
A. to turn a light on and off
B. to change what you read
C. to turn the power on and off
D. to make the book more beautiful
50. What is the main topic of the passage?
A. The decline of today's books
B. How to use an electronic book
C. The book of the future
D. Why a power source is important

4

ĐỀ ÔN THI HỌC KỲ 2
TEST 1, JUNE
Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part is
pronounced differently from that of the rest in each of the following questions.
Câu 1. A. rhinoceros
Câu 2. A. generation
Câu 3. A. penalize

B. diversity
B. endanger
B. penetrate

C. identify
C. organization
C. penalty

D. extinction
D. agencies
D. penny

Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the
position of the main stress in each of the following questions.
Câu 4. A. vertical
Câu 5. A. compete

B. penalty
B. punish

C. referee
C. eject

D. personal
D. commit

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following
questions
Câu 6. The Red List has been introduced to raise people's awareness __________ conservation needs.
A. on

B. of

C. at

D. for

Câu 7. The first question must ________ before you attempt the others.
A. answer

B. to answer

C. be answered

D. have answered.

Câu 8. You ________ take care of that cut on your hand soon, or it will get infected.
A. can

B. might

C. should

D. ought

Câu 9. You'd better __________ those glasses carefully if you want them to arrive intact.
A. pack

B. to pack

C. packing

D. have packed

Câu 10. A driver's license can _________from the Licensing Bureau at the corner of Pine Street and 5 th
Avenue.
A. obtain

B. be obtaining

C. have obtained

D. be obtained

Câu 11. - “Jane has broken her leg. She is in hospital now.”
- “___________________________”
A. I don't expect so

B. That's nothing

C. Oh, what a surprise!

D. I'm sorry to hear that

Câu 12. Humans depend _________species diversity to provide food, clean air and water.
A. on

B. of

C. to

D. for

Câu 13. - “Can I get a taxi for you?”
- “___________________________”
A. Yes, of course.

B. All right, you can.

C. Thanks. It's very kind of you.

D. No, I don't like.

Câu 14. Defensive players are not allowed to interfere ___________ the opponent's movement.
A. with

B. in

C. of

D. into

C. performed

D. committed

Câu 15. He _____ a second clear foul and was sent off.
A. combated

B. executed

Câu 16. The goal in the last few minutes took the score to 2 - 2. The match ended in a__________.
A. tie

B. triumph

C. champion

D. record

Câu 17. Many people believed that the more they produced and consumed __________ .
A. they were the more affluent

B. they were affluent more
5

C. the more affluent they were

D. they were more affluent

Câu 18. You have to be highly_________ to do well in sport these days.
A. competed

B. competitor

C. competition

D. competitive

Câu 19. In the 22nd Sea Games, Vietnamese athletes showed _________and commitment.
A. enthusiasm

B. enthusiastic

C. enthusiast

D. enthusiastically

Câu 20. The two children tried _________they could to bring about a reconciliation between their parents.
A. more hard

B. so hard as

C. as hard as

D. harder

Câu 21. A spectacular art performance program with the _________of 300 musicians and 500 artists was
held to welcome the success of the Games.
A. participate

B. participant

C. participation

D. participating

Câu 22. Vietnamese marksman Nguyen Manh Tuong, who owned five gold medals during the Games, was
awarded the most _________athlete title.
A. outstanding

B. remarkable

C. significant

D. admirable

Câu 23. Never postpone till tomorrow what you can do today.
A. take over

B. put off

C. call out

D. turn down

Câu 24. The firemen fought for three hours before they managed to ________ the fire.
A. give up

B. put out

C. break off

D. cut back

Câu 25. The United Nations ________ is a golden rectangular building in New York City.
A. head-centers

B. headquarters

C. headships

D. headlands

Câu 26. Help and supports are rapidly sent to wherever there are victims of catastrophe.
A. epidemic

B. destruction

C. misfortune

Câu 27. ________ is the natural environment in which a plant or animal lives.
A. Habitat
B. Conservation
C. Extinction
Câu 28. The more goals the players ________, the more exciting the match became.
A. marked
B. made
C. scored
Câu 29. It took me a very long time to ________ the shock of her death.
A. turn off
B. get over
C. take on
Câu 30. What may happen if John will not ________ in time?
A. go along
B. count on
C. keep away

D. disaster
D. Biodiversity
D. sprinted
D. keep up with
D. turn up

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is CLOSEST in meaning
to each of the following sentences
Câu 31. It's obvious that the child has run away.
A. The child must have run away.

B. The child might have run away,

C. The child need have run away.

D. The child could have run away.

Câu 32. We have a six o'clock deadline for this work.
A. This work must be finished by six o'clock.

B. This work could be finished by six o'clock.

C. This work might be finished by six o'clock.

D. This work need be finished by six o'clock.

Câu 33. He only feels happy whenever he doesn't have much work to do.
A. The more he works, the happier he feels
B. The less he works, the happier he feels.
C. His work makes him feel happy.
D. He feels happier and happier with his work.
Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of
the sentences in the following questions
6

Câu 34. Smoking is an extremely harmful habit. You should stop it immediately.
A. When you give up smoking immediately, you will affect your health with this harmful habit.
B. You should give up smoking immediately and you will fall into an extremely harmful habit.
C. As smoking is an extremely harmful habit, you should give it up immediately.
D. Stop smoking immediately so it will become one of your extremely harmful habit.
Câu 35. As she became more famous, it was more difficult for her to avoid paparazzi.
A. Being famous means avoiding paparazzi.
B. The more she became famous, the more it was difficult for her to avoid paparazzi.
C. It was more difficult for her to avoid paparazzi though she became famous.
D. The more famous she became, the more difficult it was for her to avoid paparazzi.
Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in
each of the following questions
Câu 36. There are many reasons why a particular species may become endanger.
A. why
B. species
C. may
D. endanger
Câu 37. Endangered species, such as the California condor, are at immediate risk of extinction and probably
cannot be survived without direct human intervention.
A. such as
B. at immediate risk
C. be survived
D. human
Câu 38. The harder he tried, the worst he danced before the large audience.
A. The
B. tried
C. worst
D. large
Câu 39. Instead of calling off the meeting, maybe we can just put it over until next month.
A. calling
B. off
C. put it
D. over
Câu 40. The letter presented the family to a problem that would be difficult to solve.
A. presented
B. to
C. that
D. would
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct
word(s) for each of the blanks
In the 1960s the women's liberation movement (41) ________ suddenly into the public
consciousness and quickly grew into the largest social movement in the history of the United States.
Women's liberation movement was a continuation of the 19th century women's right movement. The
movement's major (42)________ has included not only legal , economic, and political gains but also has
changed the ways in which people live, dress, dream of their future, (43) ________ a living. About health,
for example, many male physicians and hospital have made major improvements in the treatment of women;
more and more women have become doctors and succeeded in their medical research such as breast cancer,
which affect many women, now receive better funding and treatment, thanks to women's efforts. Feminists
have insisted that (44) ________ against women become a political issue. The women's liberation
movement has also made changes in education: curricular and (45) ________ have been written to promote
equal opportunity for girls and women; more and more female students are admitted to universities and
professional schools.
Câu 41.
Câu 42.
Câu 43.
Câu 44.
Câu 45.

A. dated
A. achievement
A. put
A. power
A. textbooks

B. originated
B. civilization
B. make
B. struggle
B. novels

C. introduced
C. status
C. get
C. violence
C. picture books

D. burst
D. power
D. take
D. society
D. magazines

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct
answer to each of the questions
Reading is still the best source of information available and it can give you a great edge and distinct
7

advantage in life, the secret to a successful life is information, the answers to nearly all our problems are
documented in text somewhere. As Mark Twain quoted, "The man who does not read has no advantage over
the man who cannot read".
Books can stimulate and excite your imagination as well as arousing your curiosity, everything that
exists and has ever existed is documented and can be found in a book, reading can teach you new skills,
ideas and give you a new positive outlook on life. Books can take you out of your world and away from your
personal perspectives and difficulties for a while as they let you into the private mind, the ideas and opinions
of others.
Reading has many benefits and a book can serve more than one useful purpose at the same time. It is a
form of relaxation while at the same time it can stimulate your mind, reading can help you to feel better,
books can be our teachers, mentors and inspirations .You can learn and better your life just by reading a
book, authors and good writers can take you to places and imaginary worlds where no other form of
entertainment or technology can rival.
Câu 46. What does the passage mainly discuss?
A. How to develop good reading habits

B. The influence of books

C. The benefits of reading D. The importance of reading good books
Câu 47. It can be concluded from the passage that_________.
A. reading makes you a better writer
B. reading can help you improve the quality of your life
C. reading can help you expand spiritually and mentally
D. reading is one of the cheapest forms of entertainment
Câu 48. According to the passage, a book cannot help you_________ .
A. solve your problems

B. broaden your knowledge

C. relax

D. develop your personality

Câu 49. The word “they” in line 10 refers to_________.
A. perspectives

B. difficulties

C. books

D. ideas

Câu 50. Which of the following is NOT the benefit of reading?
A. It improves your physical fitness

B. It melts away stress

C. It encourages positive thinking

D. It helps you learn

- THE END -

8

REVISON TEST (2ND SEMESTER)
TEST 2, JUNE
Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in
pronunciation
Question 1: A. student
B. actually
C. situation
D. status
Question 2: A. admiration
B. amazing
C. athlete
D. aspect
Question 3: A. castle
B. title
C. settle
D. little
Mark the letter A, B, C or D to indicate the word that differs from the other three in the position of the
primary stress
Question 4: A. mosquito
B. maintain
C. reserve
D. temperature
Question 5: A. entertainment
B. information
C. difficulty
D. understanding
Mark the letter A, B, C or D to indicate the correct answer to each of the following questions
Question 6: It isn't cold outside. You _________ wear a coat.
A. may
B. mustn't
C. need
D. needn't
Question 7: Some species of rare animals are in _________ of extinction.
A. danger
B. dangerous
C. endanger
D. endangered
Question 8: All traffic laws _________.
A. is observed
B. must be observed
C. must have observed
D. had better observed
Question 9: _________ you study for these exams, _________ you will do.
A. The harder / the better B. The more hard / the more good
C. The more / the much
D. The hardest / the best
Question 10: Paula applied for the post but she was _________.
A. turned down
B. checked out
C. kept under
D. pushed ahead
Question 11: The firemen were able to _________ the fire in Church Street.
A. put out
B. put on
C. get out
D. get on
Question 12: The globe gets _________ because of the changing of the weather.
A. hot and hot
B. the hottest and hottest
C. hotter and hotter
D. more and more hot
Question 13: Do you want to stop in this town, or shall we _________?
A. turn on
B. turn off
C. go on
D. look after
Question 14: My classroom is _________ this one
A. as big as
B. as big that
C. so big as
D. so big that
Question 15: Gertrude takes _________ her mother; she has blue eyes and fair hair, too
A. in
B. up
C. after
D. down
Question 16: In the 22nd SEA Games, Vietnamese athletes showed _________ and commitment.
A. enthusiasm
B. enthusiastic
C. enthusiast
D. enthusiastically
Question 17: The referee had no hesitation in awarding the visiting team a _________.
A. penalty
B. penal
C. penalize
D. penalization
Question 18: He broke the world 100 meters _________.
A. reward
B. medal
C. record
D. award
Question 19: The reviewer _________ Mathew's new novel as a new style of modern science fiction.
A. chewed
B. digested
C. drew
D. described
Question 20: They have launch a/an _________ to send food to the flood victims.
A. aid
B. proposal
C. appeal
D. attraction
Question 21: He _________ a second clear foul and was sent off.
A. committed
B. executed
C. performed
D. combated
Question 22: Even if China has made great efforts to ensure the _________ of the panda, it is still in danger
of extinction.
9

A. reserve
B. survival
C. endangerment
D. destruction
Question 23: The athlete had tried his best to _________ his SEA Games title and records.
A. carry
B. perform
C. defend
D. support
Question 24: Pasteur devoted all his life _________ science.
A. for
B. in
C. about
D. to
Question 25: It was really kind _________ you to help those poor people.
A. by
B. of
C. at
D. to
Question 26: The delegation to the SEA Games was composed _________ top competitors of the country.
A. on
B. of
C. for
D. among
Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlined word(s)
Question 27: It took Mr. Ba a long time to recover from the death of his wife.
A. get over
B. take away
C. take off

D. get through

Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s)
Question 28: The chairman initiated the proceedings with a brief speech.
A. confused
B. closed
C. started

D. complicated

Mark the letter A, B, C or D to indicate the sentence that best completes each of the following exchanges
Question 29: - “You look nice in that red shirt”
- “________________”
A. Am I? Thanks
B. Oh, poor me
C. I'm interesting to hear that
D. It's nice of you to say so
Question 30: Alfonso: “I had a really good time. Thanks for lovely evening.”
Maria: “________________”
A. Oh, that's right
B. Yes, it's really good
C. I'm glad you enjoyed itD. No, it's very kind of you.
Mark the letter A, B, C or D to indicate the correct word or phrase that best fits each of the numbered
blanks
For many young people, sport is a popular part of school life and being in one of the school teams and
playing in matches is very important. (31) _________ someone is in a team, it means a lot of extra practice
and often spending a Saturday or Sunday away (32) _________ home, as many matches are played then.
It (33) _________ also involve travelling to other towns to play against other school teams and then
staying on after the match for a meal or drink. Sometimes parents, friends or other students will travel with
the team to support (34) _________ own side.
When a school team wins a match, it is the whole school which feels proud, not only the players. It can
also mean that school (35) _________ well-known for being good at certain sports and pupils from that
school may end up playing for national and international teams so that the school has some really famous
names associated with it.
Question 31: A. If
B. So
C. Then
D. As
Question 32: A. on
B. at
C. from
D. for
Question 33: A. ought
B. has
C. is
D. can
Question 34: A. our
B. their
C. whose
D. its
Question 35: A. does
B. makes
C. becomes
D. comes
Mark the letter A, B, C or D to indicate the correct answer to each of the questions
Many ants forage across the countryside in large numbers and undertake mass migrations; these
activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns
home after finding a source of food, it marks the route by intermittently touching its stinger to the ground
and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as
the context changes. These trails incorporate no directional information and may be followed by other ants
in either direction.
10

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept
secret from members of other species. It is not surprising then that ant species use a wide variety of
compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with
the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would
suffice to lead a column of ants three times around Earth.
The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant
detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest
concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant
moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one
and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the
vapor space.
The signal it receives causes it to swing to the left, and the ant then pursues this new course until its
right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down
the trail.
Question 36: What does the passage mainly discuss?
A. The mass migration of ants
B. How ants mark and follow a chemical trail
C. Different species of ants around the world
D. The information contained in pheromones
Question 37: The word “intermittently” in the first paragraph is closest in meaning to _________
A. periodically
B. incorrectly
C. rapidly
D. roughly
Question 38: According to the passage, why do ants use different compounds as trail pheromones?
A. To reduce their sensitivity to some chemicals
B. To attract different types of ants
C. To protect their trail from other species
D. To indicate how far away the food is
Question 39: The author mentions the trail pheromone of the leafcutter ant in the second paragraph to point
out _________
A. how little pheromone is needed to mark a trail
B. the different types of pheromones ants can produce
C. a type of ant that is common in many parts of the world
D. that certain ants can produce up to one milligram of pheromone
Question 40: According to the passage, the highest amount of pheromone vapor is found _________
A. in the receptors of the ants
B. just above the trail
C. in the source of food
D. under the soil along the trail
Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following
questions.
Question 41: This building will have finished by the end of 2020.
A. will
B. have finished
C. by
D. of
Question 4...