Violet
Dethi

Tin tức thư viện

Chức năng Dừng xem quảng cáo trên violet.vn

12087057 Kính chào các thầy, cô! Hiện tại, kinh phí duy trì hệ thống dựa chủ yếu vào việc đặt quảng cáo trên hệ thống. Tuy nhiên, đôi khi có gây một số trở ngại đối với thầy, cô khi truy cập. Vì vậy, để thuận tiện trong việc sử dụng thư viện hệ thống đã cung cấp chức năng...
Xem tiếp

Hỗ trợ kĩ thuật

  • (024) 62 930 536
  • 091 912 4899
  • hotro@violet.vn

Liên hệ quảng cáo

  • (024) 66 745 632
  • 096 181 2005
  • contact@bachkim.vn

ĐỀ THI HSG ANH 12 HÀ TĨNH 2025-2026

Wait
  • Begin_button
  • Prev_button
  • Play_button
  • Stop_button
  • Next_button
  • End_button
  • 0 / 0
  • Loading_status
Nhấn vào đây để tải về
Báo tài liệu có sai sót
Nhắn tin cho tác giả
(Tài liệu chưa được thẩm định)
Nguồn:
Người gửi: Trần Thanh Nhã
Ngày gửi: 23h:48' 06-02-2026
Dung lượng: 271.2 KB
Số lượt tải: 18
Số lượt thích: 0 người
Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
SỞ GIÁO DỤC VÀ ĐÀO TẠO

KỲ THI CHỌN HỌC SINH GIỎI TỈNH LỚP 12 THPT

HÀ TĨNH

NĂM HỌC 2025 - 2026
MÔN THI: TIẾNG ANH

ĐỀ CHÍNH THỨC

Thời gian làm bài: 180 phút

I. LISTENING (5 POINTS)
Part 1: You will hear a recording about natural phenomena. For questions 1-5, decide whether the
following statements are True (T) or False (F) according to what you hear. Write your answers in the
corresponding numbered boxes provided.
1. Under normal conditions, the trade winds that drive warm surface water towards Asia originate from the
West.
2. During El Niño, the weakening of trade winds leads to a surge in the amount of cold water rising to the
surface off the South American coast.
3. The climatic consequences of El Niño in North America are most distinctively observed during the spring
and autumn months.
4. A defining characteristic of La Niña is the accumulation of cold water in the eastern Pacific caused by
intensified upwelling.
5. The El Niño-La Niña cycle is a global weather influencer that poses a potential threat to food security and
water supplies worldwide.
Part 2: You will hear five different students talking about their first year at university. For questions 610, choose from the list (A-F) what each speaker says. Use the letters only once. There is ONE
statement you don't need. Write your answers in the corresponding numbered boxes.
A. I had to face some criticism when I chose a subject to study.

6. Speaker 1 _____________

B. I was able to change an earlier decision about my studies.

7. Speaker 2 _____________

C. I'm pleased that I'm able to combine studying with a job.

8. Speaker 3 _____________

D. I had to be careful when choosing which college to study at.

9. Speaker 4 _____________

E. I had to give up a good job to concentrate on my studies.

10. Speaker 5 _____________

F. I'm happy to have an active social life while at college.
Part 3: For questions 11 – 15, listen to an interview in which two filmmakers, Tilly Woodford and Lee
Davies, are talking about a documentary they have made about animals and choose the answer (A, B,
C, or D) which fits best according to what you hear. Write your answers in the corresponding
1

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
numbered boxes.
11. Tilly asserts that the genesis of the documentary was sparked by:
A. Experiencing a profound emotional connection with a creature.
B. Desiring to instill in her progeny an appreciation for animals.
C. Acknowledging that her comprehension of animals was somewhat deficient.
D. Reflecting on her childhood recollections of animal husbandry.
12. What were Lee's initial sentiments towards participating in the documentary project?
A. Intrigued about the potential synergy with Tilly.
B. Remorseful about having to relinquish his other endeavor.
C. Apprehensive about adopting a divergent working methodology.
D. Skeptical about the extent of interest in the subject matter.
13. What does Tilly insinuate about the gentleman she interviewed?
A. He struggled with the responsibilities of pet care.
B. He neglected to consider his pets' requirements.
C. He was in disagreement with Tilly's propositions regarding pet nutrition.
D. He exclusively concentrated on the enjoyable aspects of pet ownership.
14. Which revelation astonished Lee and Tilly the most during their investigation?
A. The lengths some individuals would go to safeguard wildlife.
B. The paucity of knowledge concerning animal communication.
C. The significant transformation in societal attitudes towards pets.
D. The economic significance of the pet industry.
15. Upon retrospection of the documentary, they express regrets that:
A. Several narratives had to be excised from the final rendition.
B. The documentary lacked a substantial amount of their personal insights.
C. They centered their attention on the least contentious issues.
D. Their limited budget constrained their capabilities.
Part 4: For questions 16-25, listen and complete the following text, write NO MORE THAN THREE
WORDS taken from the recording in each blank. Write your answers in the corresponding numbered
spaces.
Sleep is a state of unconsciousness and paralysis that almost all of us experience every night. It is regulated
by the body clock, or (16) _____________ located in the brain. The body clock responds to light cues,
ramping up production of the (17) _____________ at night and switching it off when it senses light.
Sleep consists of four stages, occurring in cycles throughout the night. Stages one and two are light sleep – a
2

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
(18) _____________ from being awake to falling asleep. Heart rate and breathing begin to slow, body
temperature falls, and muscles may (19) _____________. Stage three is sometimes called delta sleep, due to
the release of slow delta (20) _____________ during this stage. This is the first stage of deep sleep, where
our (21) _____________ produce the most growth hormone to service bones and muscles, allowing the body
to repair itself. Dreams happen in stage four. During this stage, chemicals are released to prevent us from
acting out our dreams. Although the eyes are closed, they dart (22) _____________ as if in waking
condition. Compared to a century ago, humans are sleeping far less today. This is brought about by (23)
_____________, stress, and the proliferation of technology. People who fail to get seven hours of sleep a day
can suffer from (24) _____________, thus reducing life expectancy. So for a healthier, longer life, get (25)
_____________.
II. LEXICO-GRAMMAR
Part 1: Choose the correct word or phrase to complete each sentence. Write your answers A, B, C or D
in the corresponding numbered boxes.
1. He gave me a _____________ box to say sorry to me for what he had done.
A. small square jewelry metal

B. small metal square jewelry

C. small square metal jewelry

D. small jewelry square metal

2. _____________, the driver couldn't make out the road signs.
A. It was a lot of freezing fog and icy patches

B. There is a lot of freezing fog and icy patches

C. It being a lot of freezing fog and icy patches

D. There being a lot of freezing fog and icy patches

3. Fame and fortune _____________, Donna never forgot her hometown.
A. notwithstanding

B. though

C. albeit

D. even so

4. It is imperative that the password of every online account _____________ confidential.
A. need keeping

B. need to keep

C. needs to be kept

D. needed keeping

5. Four miles off the southern coast of Massachusetts _____________, a popular summer resort.
A. where the island of Martha's Vineyard lie

B. lies the island of Martha's Vineyard

C. the island of Martha's Vineyard lies there

D. does the island of Martha's Vineyard lie

6. She is reported to be _____________ a spectator.
A. an athlete more than

B. more an athlete than

C. an athlete of more than

D. more of an athlete than

7. We had been walking for over 20 miles, and we were _____________ exhausted.
A. actually

B. thoroughly

C. solely

D. merely

8. The board of directors finally reached a _____________ and were able to draw up the agreement to
implement the new strategy.
3

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
A. consensus

B. cohesion

C. solidarity

D. resolution

9. I had to explain the problem to my sister several times before the _____________ finally dropped.
A. stone

B. hammer

C. axe

D. penny

10. As I said before, the report will be released in the _____________ of time. I can't estimate when that will
be.
A. rightness

B. fullness

C. greatness

D. correctness

11. Making hand-knitted scarves has become a _____________ industry in many parts of the country.
A. cottage

B. street

C. service

D. youth

12. John had a close shave this morning. He _____________ in that car crash.
A. should have been killed

B. ought to have been killed

C. could have been killed

D. must have been killed

13. When they see hungry Canadian children on TV, the message about poverty will hit _____________.
A. form

B. hulk

C. soul

D. home

14. There is no _____________ that will help you lose weight without effort, the only way is to exercise and
follow a diet.
A. smoking gun

B. straight arrow

C. silver bullet

D. golden brick

15. She was determined to become wealthy and to this _____________ she started her own company.
A. view

B. end

C. aim

D. object

16. He just thoroughly enjoyed reading it with me and was thrilled to _____________ that it was his very
own story.
A. heaven

B. shreds

C. goodness

D. bits

17. There was only _____________ evidence; nobody actually saw the man take anything. However, he was
seen leaving the building via CCTV cameras around the time of the robbery.
A. extenuating

B. circumstantial

C. diminished

D. suspended

18. “What a meaningful thing you've done for your less fortunate friends, my son!” - “_____________”
A. Thank you, Mom. That's just a bit I can do for them
B. Thanks for taking care of me, Mom.
C. What a wonderful gift you've made for me
D. I don't really care. I must go now.
19. After the heated argument, both parties decided to _____________ and find a way to move forward
together.
A. cut to the chase

B. call it quits

C. bury the hatchet

D. bite the bullet

20. As a politician, he must be strong to withstand the _____________ which are constantly directed at him
by the media.
4

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
A. shipfitters

B. pitstops

C. battlecries

D. brickbats

Part 2: Write the correct FORM of each capital word in the following passage in the corresponding
numbered boxes. Write your answers in the given box.
The benefits of the Internet are widely known: it offers access to all kinds of information (21.
IMAGINARY) _____________ and provides opportunities to communicate with others around the world,
to share opinions and play games. Parents recognise that it can (22. LOCK) _____________ a world of
learning and new experiences for their children, but because the Internet is comprised of millions of private
sites which no one can control, (23. EVITABLE) _____________ there are risks involved. It potentially
exposes (24. YOUNG) _____________ to offensive material and even dangerous situations, and crimes like
abductions, which begin with (25. SEEM) _____________ harmless online introductions, becoming
increasingly common. Recently, however, there have been efforts to raise awareness of the (26.
DANGEROUS) _____________ on the Internet. Parents should tell their children to remember at all times
that in chatrooms, they are dealing with complete strangers and not giving out any personal information is
the key to Internet safety. (27. SPECIAL) _____________ software can be installed which filters out
unsuitable sites. There are also safe sites for children where (28. MEMBER) _____________ is required.
Such sites are constantly monitored to make sure that no one breaks the rules: no sharing of personal details,
no requests for email addresses and no rudeness. The Internet is vast and (29. GOVERN) _____________,
but provided certain precautions are taken, young people can safely benefit from its (30. RICH)
_____________.
Part 3: Match each item on the left with a suitable item on the right to form a collocation/idiom. Then
use each of the collocations/idioms to fill in the sentences below. Write your answers in the
corresponding numbered boxes.
turned on

the slack

got

the beans

went through

the handle

made

water

went against

the waterworks

took up

the roof

held

the grain

dropped

cold feet

flew off

the grade

5

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
spilt

a brick

31. When two team members were absent, the others _____________. It was rather unfair.
32. When the students kept talking during the lesson, the teacher suddenly _____________.
33. As soon as she didn't get what she wanted, she _____________.
34. Prices of essential goods _____________ last year due to economic crisis.
35. We hoped to give the bicycle to Sue as a surprise, but it turned out Max had _____________ before the
party.
36. It _____________ for her to lie, so she decided to tell the truth even though it was difficult.
37. It really _____________ that it was Tom who leaked our plan as his wife could benefit much from the
project.
38. You really _____________ the other day when you told Brian that his daughter had cheated in the exam.
39. The standards for entry to the professional golf school were very high and only a few candidates
_____________.
40. I was all set to take the job in Tokyo, but at the last minute I _____________ and decided to stay in
Britain.
III. READING (5 POINTS)
Part 1: Read the following advertisement and decide which answer A, B, C, or D best fits each gap.
Write your answers in the numbered boxes.
Our biological clocks govern almost every aspect of our lives. Our sensitivity to stimuli (1)
_____________ over the course of the day, and our ability to perform certain functions is subject to
fluctuations. Consequently, there is a(n) (2) _____________ time for tasks such as making decisions: around
the middle of the day. Anything that (3) _____________ physical co-ordination, on the other hand, is best
attempted in the early evening. What is more, there is a dramatic drop in (4) _____________ if these
activities are carried out at other times. The risk of accident in a factory, for example, is 20% higher during
the night shift.
Primitive humans lived their lives in (5) _____________ with the daily cycle of light and dark. Today
we are (6) _____________ convinced that we can impose schedules on our lives at will. Sooner or later,
however, we pay a price for ignoring our natural rhythms. A good example is jet lag, (7) _____________ by
crossing several time zones. People suffering from jet lag can take several days to adjust to new time zones,
and have a reduced ability to make decisions, which is a worrying thought, as serious (8) _____________ of
judgement can be made. And this may be just the (9) _____________ of the iceberg. An increasing number
6

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
of people suffer from (10) _____________ affective disorder (SAD), a form of depression that can be
triggered by living in artificial conditions. SAD can be serious, and sufferers may even need to take
antidepressant drugs.
1. A. modifies

B. ranges

C. varies

D. wavers

2. A. peak

B. summit

C. maximum

D. optimum

3. A. requests

B. demands

C. dictates

D. stipulates

4. A. performance

B. severance

C. abeyance

D. renaissance

5. A. agony

B. work

C. conflict

D. tune

6. A. powerfully

B. firmly

C. steadily

D. highly

7. A. caused when we confuse our body's biological clocks
B. causing when we confuse our body's biological clocks
C. caused why we confuse our body's biological clocks
D. caused when we confuse our biological body's clocks
8. A. errors

B. mistakes

C. inaccuracies

D. fallacies

9. A. peak

B. pinnacle

C. top

D. tip

10. A. suspended

B. stark

C. seasonal

D. severe

Part 2: Fill each of the following numbered blanks with ONE suitable word and write your answers in
the corresponding numbered boxes.
In an (11) _____________ to escape from their hectic and materialistic city lives, more and more
Northern Europeans are buying houses in rural areas of France, Spain, Italy and Greece. Some relocate
permanently in (12) _____________ of a more meaningful existence. Those who cannot afford to give up
their jobs seek a therapeutic respite (13) _____________ their stressful lifestyle by relaxing for a few weeks
each year in their second home in the sun.
However, many of those who relocate permanently find that life in the country is not as quiet and
uneventful as they (14) _____________ anticipated. Aspects of village life which seemed delightfully
atmospheric in the context of a two-week holiday can grate (15) _____________ the nerves when you live
with them on a daily basis. Recently, a group of British residents in an Italian village (16) _____________
local farmers to court because they found the smell of the villagers' pigs distasteful. In other cases,
foreigners have complained to neighbors about the enthusiastic early morning crowing of their cockerels, or
to village priests about the regular tolling of (17) _____________ bells.
Understandably the (18) _____________ inhabitants are somewhat resentful of these attitudes. They
argue that the foreigners have an unrealistic view of (19) _____________ country life is like and that, since
no-one forced them to come and live in a village, they are being hypocritical by now complaining about the
7

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
inconveniences of (20) _____________ life.
Part 3: For questions 21-30, read the following passage and do the tasks that follow.
BESTCOM CONSIDERATE COMPUTING
A. 'Your battery is now fully charged,' announced the laptop to its owner Donald A. Norman in a synthetic
voice, with great enthusiasm and maybe even a hint of pride. For the record, humans are not at all unfamiliar
with distractions and multitasking. 'We are used to a complex life that gets constantly interrupted by
computer's attention-seeking requests, as much as we are familiar with procreation,' laughs Ted Selker of the
Massachusetts Institute of Technology (MIT) Media Lab.
B. Humanity has been connected to approximately three billion networked telephones, computers, traffic
lights and even fridges and picture frames since these things can facilitate our daily lives. That is why we do
not typically turn off the phones, shut down the e-mail system, or close the office door even when we have a
meeting coming or a stretch of concentrated work. We merely endure the consequences.
C. Countless research reports have confirmed that if people are unexpectedly interrupted, they may suffer a
drop in work efficiency, and they are more likely to make mistakes. According to Robert G. Picard from the
University of Missouri, it appears to build up the feeling of frustration cumulatively, and that stress response
makes it difficult to focus again. It is not solely about productivity and the pace of life. For some
professionals like pilots, drivers, soldiers and doctors, loss of focus can be downright disastrous. 'If we could
find a way to make our computers and phones realise the limits of human attention and memory, they may
come off as more thoughtful and courteous,' says Eric Horvitz of Microsoft Research. Horvitz, Selker and
Picard are just a few of a small but prospering group of researchers who are attempting to make computers,
phones, cars and other devices to function more like considerate colleagues instead of egocentric oafs.
D. To do this, the machines need new skills of three kinds: sensing, reasoning and communicating. First, a
system must: sense or infer where its owner is and what he or she is doing. Next, it must weigh the value of
the messages it wants to convey against the cost of the disruption. Then it has to choose the best mode and
time to interject: Each of these pushes the limits of computer science and raises issues of privacy, complexity
or reliability. Nevertheless, 'Attentive' Computing Systems, have started to make an appearance in the latest
Volvos, and IBM has designed and developed a communications software called WebSphere that comes with
an underlying sense of busyness. Microsoft has been conducting extensive in-house tests of a way more
sophisticated system since 2003. In a couple of years, companies might manage to provide each office
employee with a software version of the personal receptionist which is only available to corner-suite
executives today.
E. However, the truth is that most people are not as busy as they claim to be, which explains why we can
often stand interruptions from our inconsiderate electronic paraphernalia. To find out the extent to which
8

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
such disruption may claim people's daily time, an IBM Research team led by Jennifer Lai from Carnegie
Mellon University studied ten managers, researchers and interns at the workplace. They had the subjects on
videotape, and within every period of a specific time, they asked the subjects to evaluate their
'interruptibility'. The time a worker spent in leave-me-alone state varied from individual to individual and
day to day, and the percentage ranged from 10 to 51. Generally, the employees wished to work without
interruption for roughly 1/3 of the time. Similarly, by studying Microsoft workers, Horvitz also came to the
discovery that they ordinarily spend over 65 per cent of their day in a low-attention mode.
F. Obviously, today's phones and computers are probably correct about two-thirds of time by assuming that
their users are always available to answer a call, check an email, or click the 'OK' button on an alert box.
But for the considerate systems to be functional and useful, their accuracy has to be above 65 in sending
when their users are about to reach their cognitive limit.
G. Inspired by Horvitz's work, Microsoft prototype Bestcom-Enhanced Telephony (Bestcom-ET) digs a bit
deeper into every user's computer to find out clues about what they are dealing with. As I said earlier,
Microsoft launched an internal beta test of the system in mid-2003. Horvitz points out that by the end of last
October, nearly 3,800 people had been relying on the system to field their incoming calls.
H. Horvitz is, in fact, a tester himself, and as we have our conversation in his office, Bestcom silently takes
care of all the calls. Firstly, it checks if the caller is in his address book, the company directory, or the 'recent
call' list. After triangulating all these resources at the same time, it attempts to figure out what their
relationship is. The calls that get through are from family, supervisors and people he called earlier that day.
Other callers will get a message on their screens that say he cannot answer now because he is in a meeting,
and will not be available until 3pm. The system will scan both Horvitz's and the caller's calendar to check if
it can reschedule a callback at a time which works for both of them. Some callers will take that option, while
others simply leave a voicemail. The same happens with e-mails. When Horvitz is not in his office, Bestcom
automatically offers to transfer selected callers to his cellphone, unless his calendar implies that he is in a
meeting.
For questions 21 - 26, decide whether the following statements are True (T), False (F) or Not Given
(NG). Write T, F, NG in the corresponding numbered boxes provided.
21. According to Ted Selker, human reproduction has been disturbed throughout history.
22. If people are interrupted by calls or e-mails, they usually put up with it.
23. Microsoft is now investigating a software which is compatible with ordinary offices.
24. People usually have a misperception about whether they are busy or not.
25. Experts in Carnegie Mellon University conducted a research observing all occupations of IBM.
26. Current phone and computer systems have shortcut keys for people receiving information immediately.
9

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
For questions 27-30, complete the notes below. Choose ONE WORD ONLY from the passage for each
answer. Write your answers in the corresponding numbered box provided.
Bestcom system makes further efforts in order to find 27. _____________ about what users are doing.

Check

the

_____________

28. If callers are not in directory, a(n) Bestcom

the

provide

a

Between message will show up on their screen, solution by transfering your

the caller and the user saying the user is not available at the call
whether

will

caller

has moment.

The

system

will

to

the

user's

30.

29. _____________ if there is

contact information of the _____________ a suitable time for no meeting in his or her
user, such as their family, both, or callers can choose to leave a schedule.
friends or colleagues.

voicemail to users.

Part 4: Reading the following text and mark the letter A, B, C or D to indicate the correct answer to
each of the questions from 31 to 40.
History of the Chickenpox Vaccine
Chickenpox is a highly contagious infectious disease caused by the Varicella zoster virus; sufferers
develop a fleeting itchy rash that can spread throughout the body. The disease can last for up to 14 days and
can occur in both children and adults, though the young are particularly vulnerable. Individuals infected with
chickenpox can expect to experience a high but tolerable level of discomfort and a fever as the disease works
its way through the system. The ailment was once considered to be a “rite of passage” by parents in the
U.S. and thought to provide children with greater and improved immunity to other forms of sickness
later in life. This view, however, was altered after additional research by scientists demonstrated unexpected
dangers associated with the virus. Over time, the fruits of this research have transformed attitudes toward the
disease and the utility of seeking preemptive measures against it.
A vaccine against chickenpox was originally invented by Michiaki Takahashi, a Japanese doctor and
research scientist, in the mid-1960s. Dr. Takahashi began his work to isolate and grow the virus in 1965 and
in 1972 began clinical trials with a live but weakened form of the virus that caused the human body to create
antibodies. Japan and several other countries began widespread chickenpox vaccination programs in 1974.
However, it took over 20 years for the chickenpox vaccine to be approved by the U.S. Food & Drug
10

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193 để mua ạ
Administration (FDA), finally earning the U.S. government's seal of approval for widespread use in 1995.
Yet even though the chickenpox vaccine was available and recommended by the FDA, parents did not
immediately choose to vaccinate their children against this disease. Mothers and fathers typically cited the
notion that chickenpox did not constitute a serious enough disease against which a person needed to be
vaccinated.
Strong belief in that view eroded when scientists discovered the link between Varicella zoster, the
virus that causes chickenpox, and shingles, a far more serious, harmful, and longer-lasting disease in older
adults that impacts the nervous system. They reached the conclusion that Varicella zoster remains dormant
inside the body, making it significantly more likely for someone to develop shingles. As a result, the medical
community in the toefl.magoosh.com 7 U.S. encouraged the development, adoption, and use of a vaccine
against chickenpox to the public. Although the appearance of chickenpox and shingles within one person can
be many years apart—generally many decades—the increased risk in developing shingles as a younger adult
(30-40 years old rather than 60-70 years old) proved to be enough to convince the medical community that
immunization should be preferred to the traditional alternative.
Another reason that the chickenpox vaccine was not immediately accepted and used by parents in the
U.S. centered on observations made by scientists that the vaccine simply did not last long enough and did
not confer a lifetime of immunity. In other words, scientists considered the benefits of the vaccine to be
temporary when given to young children. They also feared that it increased the odds that a person could
become infected with chickenpox later as a young adult, when the rash is more painful and prevalent and can
last up to three or four weeks. Hence, allowing young children to develop chickenpox rather than take a
vaccine against it was believed to be the “lesser of two evils.” This idea changed over time as booster shots
of the vaccine elongated immunity and countered the perceived limits on the strength of the vaccine itself.
Today, use of the chickenpox vaccine is common throughout the world. Pediatricians suggest an
initial vaccination shot after a child turns one year old, with booster shots recommended after the child turns
eight. The vaccine is estimated to be up to 90% effective and has reduced worldwide cases of chickenpox
infection to 400,000 cases per year from over 4,000,000 cases before vaccination became widespread. ■ (I)
In light of such statistics, most doctors insist that the potential risks of developing shingles outweigh the
benefits of avoiding rare complications associated with inoculations. ■ (II) Of course, many parents continue
to think of the disease as an innocuous ailment, refusing to take preemptive steps against it. ■ (III) As
increasing numbers of students are vaccinated and the virus becomes increasingly rarer, however, even this
trend among parents has failed to halt the decline of chickenpox among the most vulnerable populations. ■
(IV)
31. According to paragraph 1, which of the following is true of the chickenpox virus?
11

A. It leads to a potentially deadly disease in adults.

Bộ đề thi HSG Tiếng Anh 12 Các Tỉnh Thành Phố giải chi tiết liên hệ Zalo O988166193
 
Gửi ý kiến