drivers
expect 10 or 15 percent, too.\
A. ought B. should C. might D. can 32. millions of galaxies exist in the vast space outside the Milky Way.
A. It is estimated that B. An estimate that C. That is estimated D. That the estimate
33. As resident of Texas, Dennis __ to the House of Representatives in 1930 and
to the Senate in 1938.
A. when elected B. elected C. who was elected D. was elected
34. The instructions are too clear on the bottle: These tablets __ they are able to
make about twenty different sounds.
A. will be kept B. are to be kept C. shall keep D. shall have kept
35. Green have the power to make food from substances found in the air and soil.
A. only plants B. plants alone C. the only plants D. plants are alone
36. China and America are separated by __
A. Pacific Ocean B. a Pacific Ocean C. the Pacific Ocean D. Pacific Oceans 37. \
A. if or not you like it B. whether you like it or not C. do you like it or not D. you like it or not 38. __ I go on holiday, I always seem to be unlucky with the weather. A. Where B. How C. Whenever D. While 39. Many live in Hawaii, more than __ of whose people boast on Asian or Polynesian heritage.
A. two-thirds B. two-third C. second-third D. two-three 40. It is the earth's 40 mile deep crust with __ we are concerned when we seek
the cause of earthquake.
A. that B. what C. which D. whom III. Reading Comprehension Section A
Directions: There are 5passages in this section. Each passage is followed by 4
questions or unfinished statements. For each of them there are four choices marked
A, B, C and D. You shouM decide on the best choice and mark your
answer on the Answer Sheet.
Questions 41 to 44 are based on the following passage:
Scientists now believe that many, if not all, living things are born with some
type of hidden clock. These clocks are sometimes set by the number of hours of light
or darkness in a day, by the rhythm of the tides or by the seasons. One of the most remarkable of nature's living clocks belongs to the fiddler crab,
that familiar beach-dweller with the overgrown claw. Biologists have long known
that the crab's shell is darkest during the day, grows pale in late afternoon, then
begins to darken again at daybreak. This daytime darkening is valuable for protection against enemies and sunlight, and for many years it was thought to be a
simple response by the crab to the sun--just as if we were to get a tan during the day and lose it at night.
But when an enterprising scientist placed a fiddler crab in darkness, he was
amazed to find that the color of the crab's shell kept ticking off the time with the same accuracy.
Yet another startling fact was revealed: the crab's shell reached the darkest color
about 50 minutes later each day. There was a second clock inside the crab, for the
tides also occur 50 minutes later from day to day. Moreover, even when the crabs
were taken from the beach and put back in the dark, they continued their tidal
rhythm. More research disclosed that a crab from Cape Cod, Massachusetts, reached
its darkest color four hours earlier than the one taken from a beach on a neighboring
island. The tides on the nearby island were found to be exactly four hours later than
the Cape Cod tides.
Birds also have built-in timepieces which send them off on fall and spring
migrations. What the birds really have is a clock-like mechanism which allows them
to time hours of darkness or light in each day.
But what sends birds northward again in the spring? New research by Dr. Albert
Wolfson of Northwestern University seems to indicate that the timing of remm flight
is extraordinarily complex. In the fall of the year the short days and long nights
cause the \in migratory birds to undergo a kind of \preparation
for their spring remm and breeding. Then during the late fall and winter as the clock
\day
during the winter determines how fast the clock will mn, and hence when the
\will ring for the spring migration. The clock continues to run through
breeding time, then stops--to be re-wound again the next fall.
Scientists are now learning that many of the clocks of nature can be reset,
speeded up or slowed down--all for our benefit. Pioneering experiments at the U. S.