酷兔英语

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第二篇 World Crude Oil
Production May Peak a Decade Earlier Than Some
Predict
练习:
1. Which of the following is closest in meaning to the word
"sparked" appearing in paragraph 2?
A. flashed
B. stimulated
C. changed
D. ended
2. The term "a bell shaped curve" appearing in paragraph 2
indicates that global oil production will
A. take the shape of a flat curve.
B. keep growing.
C. keep declining.
D. start to decline after global oil production peaks.
3. Which of the following is NOT true of the Hubbert model?
A. It successfully predicted that oil production peaked in the
U. S. in 1970.
B. It has been used to predict oil production in many
countries.
C It is insufficient to explain oil production cycles in some
countries.
D. It provides a very realistic and accurate oil production.
4. What is the major achievement of the new study mentioned in
the last paragraph?
A. It predicts global oil production will peak in 2014..
B. It predicts oil production will decline in 47 countries.
C. It confirms further the effectiveness of the Hubbert
model.
D. It discovers a new trend of worldwide oil production.
5. Who develop the new version of the Hubbert mode!?
A. American scientists.
B. Kuwaiti scientists.
C. British scientists.
D. Scientists of 47 major oil-producing countries.
第六篇
Weaving
with Light
练习:
1. To make a living, the Huichol create artwork and
A. sell it to tourists in their villages.
B. sell it in cities far away from their
villages.
C. display it in their village museum.
D. keep it in their homes to attract
tourists.
2. Why can Portable Lights emit light?
A. Electronic crystals are woven into
fabrics.
B. Items such-as clothes and bags are used to
carry lights.
C. The sun's energy is collected during the
day.
D. All of the above.
3. What does Sheila Kennedy say about Portable Lights?
A. This invention can change the lives of
people, both rich and poor.
B. They are widely used in the United
States.
C. Portable Lights can help poor people
around the world to get light.
D. They are expensive to make but easy to
carry.
4. What is the most important part of the Portable Light
technology?
A. HB LEDs
B. Glass Bulbs.
C. Incandescent lights.
D. Heated metal coils.
5. LEDs are different from light bulbs in that
A. LEDs are incandescent lights while light
bulbs are not.
B. LEDs have a metal coil while light bulbs
have not.
C. LEDs emit colored light while most light
bulbs don't.
D. LEDs are made up of tiny pieces of rock
while light bulbs are not.


*第三十四篇 Batteries Built by
Viruses
练习:
1. According to the first paragraph, people try to
A. kill microorganisms related to chicken
pox, the flu, etc.
B. keep themselves away from viruses because
they are invisible.
C. stay away from viruses because they are
causes of various diseases.
D. cure themselves of virus-related diseases
by taking medicines.
2. What is Belcher's team doing at present?
A. It is finding ways to get rid of
viruses.
B. It is mass-producing microbatteries.
C. It is making batteries with viruses.
D. It is analyzing virus genes.
3. What expression below is opposite in meaning to the word
"shrink" appearing in paragraph 5?
A. Broaden.
B. Spread.
C. Extend.
D. Expand.
4. Which of the following is true of Belcher's battery mentioned
in paragraph 6?
A. It is made of metal.
B. It is a kind of watch battery.
C. It can only be seen with a microscope.
D. It is a metallic disk with viruses inside
it.
5. How tiny is one battery part?
A. Its width is one tenth of a hair.
B. It equals the width of a hair.
C. It is as thin as a piece of paper.
D. Its width is too tiny to measure.

*第三十八篇
Longer
Lives for Wild Elephants
练习:
1. According to the first two paragraphs, unlike other zoo
animals, zoo elephants
A. have difficulty eating food.
B. live to a ripe old age.
C. are not afraid of predators.
D. develop health problems.

2. Which of the following about the international scientists'
research on the life spans of elephants is NOT true? (See paragraph
3)?
A. They compared zoo elephants with wild
elephants.
B. They kept detailed records of all the
elephants in their care.
C. They analyzed the records of the elephants
kept in zoos.
D. The zoo-born elephants they studied are
kept in European zoos.

3. What do the scientist find in their research?
A. Female elephants live longer than male
elephants.
B. Female zoo elephants live longer than
their wild counterparts.
C. Female zoo elephants die much earlier than
their wild counterparts.
D. Elephants in zoos and those in the wild
enjoy the same long life spans.

4. What are the possible causes of stress and obesity Zoo-raised
elephants generally suffer from?
A. They do not like living in herds.
B. They do not get enough exercise.
C. They do not live with their families.
D. Both B and C.
5. Which of the following does the author suggest in the last
paragraph?
A. It may not be a wise policy to keep
elephants in the zoo.
B. Elephants are no longer an endangered
species.
C. Zoo-born elephants should be looked after
more carefully.
D. Zoos should keep more animals except
elephants.



+第四十五篇
Some
People Do Not Taste Salt Like Others
练习:
1. In paragraph 2, John Hayes points out that
A. it is good to health to eat food without
salt.
B. many people reject low-salt food
completely.
C. many people accept low-salt tasteless food
reluctantly
D. food with reduced salt tastes better.
2. The fourth paragraph describes briefly
A. how to select subjects and what to do in
the research.
B. how to identify supertasters and
nontasters.
C. why to limit the number of subjects to 87
persons.
D. why to select more male subjects than
female ones.
3. The article argues that supertasters
A. like the taste of saltiness to block sweet
tastes in food.
B. like snack foods as saltiness is their
primary flavor.
C. consume less salt because they don't like
intensive tastes.
D. like to share salty cheese with
nontasters.
4. Which of the following applies to supertasters in terms of
bitter taste?
A. They like bitterness in foods as well as
saltiness.
B. They like high-salt cheese as it has
intense bitter taste.
C. They prefer high-salt cheese, which tastes
less bitter..
D. They prefer high-salt cheese as it is good
to health.
5. What message do the last two paragraphs carry'?
A. Taste acuity is genetically
determined.
B. Taste acuity is developed over time after
birth.
C. Taste acuity is related to one's eye and
hair color.
D. Taste acuity is still a mysterious subject
in science.

+第四十六篇
Marvelous
Metamaterials
练习:
1. What is true for metamaterials?
A. They will always remain in science
fiction.
B. They are already a reality.
C. They are nonexistent in nature.
D. Scientists begin to use them to build
invisible cloaks.
2. A hyperlens is a more powerful tool than a traditional
lens
A. as it can allow scientists to see small
things.
B. as it can help photographers to capture
images far away.
C. even if it is made of ordinary
materials.
D. as it can help scientists to see even the
wavelengths of visible light.
3. Scientists at the Polytechnic University of Valencia try to
invent
A. an acoustic cloak that can shuffle waves
of light.
B. an invisible cloak that can shuffle waves
of sound.
C. an acoustic cloak that can shuffle waves
of sound.
D. a cloak that is made of materials found in
nature.
4. According to Sánchez-Dehesa,
A. it is of great possibility to build an
acoustic cloak soon.
B. it is possible to build an acoustic cloak
in theory but far from reality.
C. it is totally impossible to build an
acoustic cloak.
D. it is theoretically impractical to build
an acoustic cloak.
5. What ways are some scientists looking into to protect the
island and oil rig from tsunamis?(Read the last paragraph.)
A. Surround them with metamaterials as
protective shields..
B. Stopping the tsunami with metamaterials
hours before it reaches them.
C. Building them with larger metamaterials to
keep away tsunamis.
D. Using the equipment made of metamaterials
to forecastarrival of a tsunami.


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