47. A.To ease B. To bear C. To carry D. To place
Section
C (12分)
Directions: Complete the following passage
using the word or phrase that best fits the context.
Jean Driscoll can go faster in her
wheelchair than the world’s best marathoners can run！
In April, Jean finished the Boston
Marathon in 1 hour 34 minutes 22 48 . That’s about 33 minutes 49
than the winning male
runner！She competed on the track, too. She was second in the
800-meter wheelchair demonstration race at the 1992 Olympics.
Jean doesn’t like to be told she’s brave. “I’m
not in sports 50 I’m courageous,” she says. “It’s because
I’m a competitive person！”Jean was born with spina bifida (脊柱裂), 51 damaged his spine. She began to use a 52 to get around in high school. Then she
tried wheelchair soccer and was amazed. “Players banged
each other and 53 out of their chairs，” she says.“It was fun.”
Jean
tried other wheelchair sports.At the University of Illinois, 54 wheelchair basketball team won two
national titles.
Now Jean coaches and teaches .She tried to
get people to set goals.“When I sign my
autograph,” says Jean,”I 55 , ‘ Dream big and
work hard. ’ ”
Ⅲ Reading comprehension (30分)
Directions: Read
the following three passages. Each passage is followed by several questions or
unfinished statements. For each of them there are four choices marked A, B, C
and D. Choose the one that fits best according to the information given in the
passage you have just read.
A
Science Daily (Apr. 27,2009)-Dutch
ecologist Roxina Soler and
her colleagues have discovered that subterranean (地下的)
and aboveground herbivorous(食草的)insects can communicate
with each other by using plants as telephones. Subterranean insects issue
chemical warning signals through the leaves of the plant. This way, aboveground
insects are warned that the plant is already “occupied”.
Aboveground, leafing-eating
insects prefer plants that have not yet been occupied by Subterranean
rooting-eating insects. Subterranean insects sent out chemical signals through
the leaves of the plant, which warn the aboveground insects about their
presence. This messaging makes it possible for spatially-separated insects to
avoid each other, so that they do not compete for the same plant.
In recent years it has been
discovered that different types of aboveground insects develop slowly if they
feed on plants that also have Subterranean residents and vice versa(反之亦然).It
seems that a system has developed through natural selection,which
helps the Subterranean and aboveground insects to notice each other. This avoid
unnecessary competition.
Though the “green telephone
lines”, subterranean insects can also communicate with a third party, namely
the natural enemy of caterpillars(毛虫).Parasitic wasps(寄生的黄蜂)lay their eggs inside aboveground insects. The wasps also benefit
from the signals sent by the leaves, as these help them find more insects for
their eggs.
The communication between Subterranean
and aboveground insects has only been studied in a few cases.It
is still not clear how widespread this phenomenon is. But scientists are
looking into it. This research was carried out at the Netherland Institute for
Ecology by Roxina Soler,
Jeffrey Harvey, Martijin Bezemer,
Wim van der Putten and Louise Vet. The PhD project, in which this study
was carried out, was funded by the Free Competition of NWO Earth and Life
Sciences.