PASSAGE 33(1)

PASSAGE 33

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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 from 1 to 10.

Large animals that inhabit the desert have evolved a number of adaptations for reducing
the effects of extreme heat. One adaptation is to be light in color, and to reflect rather than
absorb the Sun's rays. Desert mammals also depart from the normal mammalian practice of
maintaining a constant body temperature. Instead of trying to keep down the body temperature
deep inside the body, which would involve the expenditure of water and energy, desert
mammals allow their temperatures to rise to what would normally be fever height, and
temperatures as high as 46 degrees Celsius have been measured in Grant's gazelles. The
overheated body then cools down during the cold desert night, and indeed the temperature may
fall unusually low by dawn, as low as 34 degrees Celsius in the camel. This is an advantage
since the heat of the first few hours of daylight is absorbed in warming up the body, and an
excessive buildup of heat does not begin until well into the day.
Another strategy of large desert animals is to tolerate the loss of body water to a point that
would be fatal for non-adapted animals. The camel can lose up to 30 percent of its body weight
as water without harm to itself, whereas human beings die afterlosing only 12 to 13 percent of
their body weight. An equally important adaptation is the ability to replenish this water loss at
one drink. Desert animals can drink prodigious volumes in a short time, and camels have been
known to imbibe over 100 liters in a few minutes. A very dehydrated person, on the other hand,
cannot drink enough water to rehydrate at one session, because the human stomach is not
sufficiently big and because a too rapid dilution of the body fluids causes death from water
intoxication. The tolerance of water loss is of obvious advantage in the desert, as animals do not
have to remain near a water hole but can obtain food from grazing sparse and far-flung pastures.
Desert-adapted mammals have the further ability to feed normally when extremely dehydrated,
it is a common experience in people that appetite is lost even under conditions of moderate
thirst.

Question 1: What is the main topic of the passage?
A. Weather variations in the desert.

B. Adaptations of desert animals.

C. Diseased of desert animals.

D. Human use of desert animals.

Question 2: According to the passage, why is light coloring an advantage to large desert
animals?
A. It helps them hide from predators.
B. It does not absorb sunlight as much as dark colors.

– Website chuyên đề thi – tài liệu file word mới nhất

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C.

It helps them see their young at night.

D.

It keeps them cool at night.

Question 3: The word "maintaining" is closest in meaning to____________
A. measuring

B. inheriting

C. preserving

D. delaying

Question 4: The author uses of Grant's gazelle as an example of
A.

an animal with a low average temperature

B.

an animal that is not as well adapted as the camel

C.

a desert animal that can withstand high body temperatures

D.

a desert animal with a constant body temperature

Question 5: When is the internal temperature of a large desert mammal lower?
A. Just before sunrise

B. In the middle of the day

C. Just after sunset

D. Just after drinking

Question 6: The word "tolerate" is closest in meaning to___________.
A. endure

B. replace

C. compensate

D. reduce

Question 7: What causes water intoxication?
A. Drinking too much water very quickly.

B. Drinking polluted water.

C. Bacteria in water.

D. Lack of water.

Question 8: Why does the author mention humans in the second paragraph?
A.

To show how they use camels.

B.

To contrast them to desert mammals.

C.

To give instructions about desert survival.

D.

To show how they have adapted to desert life.

Question 9: The word "obtain" is closest in meaning to____________.


A. digest

B. carry

C. save

D. get

Question 10: Which of the following is NOT mentioned as an adaptation of large desert
animals?
A. Variation in body temperatures.
C. Drinking water quickly.

B. Eating while dehydrated.
D. Being active at night.

ĐÁP ÁN - PASSAGE 33
Question 1: What is the main topic of the passage?
Câu chủ đề của bài:
Large animals that inhabit the desert have evolved a number of adaptations for

reducing the effects of extreme heat.
=> B (Những động vật lớn sinh sống tại sa mạc đã đa dạng hóa sự thích nghi để giảm tác
động cùa cái nóng khủng khiếp)
Question 2:
According to the passage, why is light coloring an advantage to large desert animals?
One adaptation is to be light in color, and to reflect rather than absorb the Sun's rays.
(để phản chiếu lại thay vì hấp thụ tia nắng mặt trời)
=> B
A. Nó giúp chúng trốn khỏi động vật ăn thịt.
C. Nó giúp chúng nhìn thấy con con vào ban đêm
D. Nó giữ cho chúng mát vào ban đêm Question 3:
maintain (v); to make something continue at the same level, standard, etc. - giữ cái gì ổn
định ở cùng 1 mức độ, duy trì, giữ gìn, bảo tồn (theo từ điển Oxford Learner's Dictionary) =
preserve
measure (v): đo lường
inherit (v): thừa hưởng, kế thừa
delay (v): trì hỗn


=> C
Question 4:
The author uses of Grant's gazelle as an example of
…, desert mammals allow their temperatures to rise to what would normally be
fever height, and temperatures as high as 46 degrees Celsius have been measured in
Grant's gazelles. (động vật có vú sa mạc cho phép nhiệt độ tăng tới mức nhiệt độ của cơn
sốt, và nhiệt độ đến 46°c được đo từ linh dương gazel của Grant.)
=> C (Linh dương gazel của Grant được đưa ra làm ví dụ cho lồi động vật có vú trên
sa mạc có thể chịu đựng nhiệt độ cơ thể cao)
A.

động vật với nhiệt độ cơ thể trung bình thấp

B.

động vật khơng thích nghi tốt như lạc đà

D.

động vật sa mạc với nhiệt độ cơ thể không thay đổi.

Question 5:
When is the internal temperature of a large desert mammal lower?
The overheated body then cools down during the cold desert night, and indeed the
temperature may fall unusually low by dawn.
=> By dawn = just before sunrise
=> A
Question 6:
tolerate (v): to allow somebody to do something that you do not agree with or like - cho
phép ai làm gì mà bạn khơng đóng ý/ khơng thích (theo từ điển Oxford Learner’s Dictionary)
= endure (v): chịu đựng, cam chịu, chịu được
replace (v):thay thế
compensate (v): bù, đền bù, bồi thường
reduce (v): giảm
=> A
Question 7: What causes water intoxication?


... because the human stomach is not sufficiently big and because a too rapid dilution
of the body fluids causes death from water intoxication. (việc làm loãng quá nhanh lượng
chất lỏng trong cơ thể - uống quá nhiều nước gây nên cái chết bởi sự nhiễm độc nước)

=> A
Question 8: Why does the author mention humans in the second paragraph?
Desert animals can drink prodigious volumes in a short time, and camels have been
known to imbibe over 100 liters in a few minutes. A very dehydrated person, on the other
hand, cannot drink enough water to rehydrate at one session, ... (Một động vật trên sa
mạc có thể uống 1 lượng nước khổng lồ trong 1 thời gian ngắn,... 1 người rất khát nước, mặt
khác, lại khơng thể uống đủ nước để hồn lại lượng nước đã mất trong 1 lúc...)
=> Tác giả để cập đến con người để so sánh con người với động vật trên sa mạc để làm
nổi bật khả năng thích nghi của chúng
=> B
Question 9:
obtain (v): to get something, especially by making an effort - nhận được cái gì, thành tựu
gì sau khi đã nỗ lực cố gắng (theo từ điển Oxford Learner's Dictionary) = get
digest (v):tiêu hóa
carry (v): mang
save (v): tiết kiệm
=> D
Question 10:
Which of the following is NOT mentioned as an adaptation of large desert animals?
desert mammals allow their temperatures to rise to what would normally be fever height
Desert animals can drink prodigious volumes in a short time,
Desert-adapted mammals have the further ability to feed normally when extremely
dehydrated
=> D không được đề cập trong bài