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Passage 2
Questions 6 to 10 are based on the following passage:
There are two kinds of memory: shot-term and long-term. Information in
long-term memory can be remembered at a later time when it is needed. The
information may be kept for days or weeks. However, information over and over.
The following experiment shows how short-term memory has been studied.
Henning studied how students who are learning English as a second language
remember vocabulary. The subjects in his experiment were 75 college students.
They represented all levels of ability in English: beginning, intermediate, and
native-speaking students.
To begin, the subjects listened to a recording of a native speaker reading a
paragraph in English. Following the recording, the subjects took a 15-question
test to see which words they remembered, each question had four choices. The
subjects had to circle the word they had heard in the recording. Some of the
questions had four choices that sound alike. For example, weather, whether,
wither, and wetter are four words that sound alike. Some of the questions had
four choices that have the same meaning. Method, way, manner, and system would
be four words with the same meaning. Finally the subjects took a language
proficiency test.
Henning found that students with a lower proficiency in English made more of
their mistakes on words that sound alike; students with a higher proficiency
made more of their mistakes on words that have the same meaning. Henning’s
results suggest that beginning students hold the sound of words in their
short-term memory, and advanced students hold the meaning of words in their
short-term memory.
6. Henning made the experiment in order to study .
A. how students remember English vocabulary by short-term memory
B. how students learn English vocabulary
C. how to develop students’ ability in English
D. how long information in short-term memory is kept
7. Which of the following statements is TRUE according to the passage?
A. Information in short-term memory is different from that in long-term
memory.
B. Long-term memory can be achieved only by training.
C. It is easier to test short-term memory than long-term memory.
D. Henning gave a separate test on vocabulary to his students.
8. From Henning’s result we can see that .
A. beginners have difficulty distinguishing the pronunciation of words
B. advanced students remember words by their meaning
C. it is difficult to remember words that sound alike
D. it is difficult to remember words that have the same meaning
9. The word “subjects” in the passage means .
A. memory B. the theme of listening material
C. a branch of knowledge studied D. the students experimented on
Scattered through the seas of the world are billions of tons of small plants
and animals called plankton. Most of these plants and animals are too small for
the human eye to see. They drift about lazily with the currents, providing a
basic food for many larger animals. Plankton has been described as the
equivalent of the grasses that grow on the dry land continents, and the
comparison is an appropriate one. In potential food value however, plankton far
outweighs that of the land grasses. One scientist has estimated that while
grasses of the world produce about 49 billion tons of valuable carbohydrates
each year. The sea’s plankton generates more than twice as much.
Despite its enormous food potential, little effort was made until recently to
farm plankton as we farm grasses on land. Now marine scientists have at last
begun to study this possibility, especially as the sea’s resources loom even
more important as a means of feeding an expanding world population.
No one yet has seriously suggested that “planktonburgers” may soon become
popular around the world. As a possible farmed supplementary food source,
however, plankton is gaining considerable interest among marine scientists.
One type of plankton that seems to have great harvest possibilities is a tiny
shrimplike creature called krill. Growing to two or three inches long, krill
provide the major food for the giant blue whale, the largest animal ever to
inhabit the Earth. Realizing that this whale may grow 100 feet and weigh 150
tons at maturity, it is not surprising that each one devours more than one ton
of krill daily.
Krill swim about just below the surface in huge schools sometimes miles wide,
mainly in the cold Antarctic. Because of their pink color, they often appear as
a solid reddish mass when viewed from a ship or from the air. Krill are very
high in food value. A pound of these crustaceans contains about 460
calories—about the same as shrimp or lobster, to which they are related.
If the krill can feed such huge creatures as whales, many scientists reason,
they must certainly be contenders as new food source for humans.
1.Which of the following best portrays the organization of the passage?
A.The author presents the advantages and disadvantages of plankton as a food
source.
B.The author quotes public opinion to support the argument for farming
plankton.
C.The author classifies the different food sources according to amount of
carbohydrate.
D.The author makes a general statement about plankton as a food source and
then moves to a specific example.
2.According to the passage, why is plankton regarded to be more valuable than
land grasses?
A.It is easier to cultivate.
B.It produces more carbohydrates.
C.It does not require soil.
D.It is more palatable.
3.Why does the author mention “planktonburgers”?
A.To describe the appearance of one type of plankton.
B.To illustrate how much plankton a whale consumes.
C.To suggest plankton as a possible food sources.
D.To compare the food values of beef and plankton.
4.What is mentioned as one conspicuous feature of krill?
A.They are the smallest marine animals.
B.They are pink in color.
C.They are similar in size to lobsters.
D.They have grass like bodies.
5.The author mentions all of the following as reasons why plankton could be
considered a human food source except that it is ___.
A.high in food value.
B.in abundant supply in the oceans.
C.an appropriate food for other animals.
D.free of chemicals and pollutants.
