STUDENTS ARE EXPECTED TO BE QUIET ANDCOMPLIANTIN THE CLASSROOM.A. RECA...

Câu 10:

Students are expected to be quiet and

compliant

in the classroom.

A. Recalcitrant

B. obedient

C. compatible

D. friendly

IV. Read the following passage on commuting, and mark the letter A, B, C, or D on your answer sheet

to indicate the correct answer to each of the questions.

In July of 1994, an astounding series of events took place. The world anxiously watched as, every few

hours, a hurtling chunk of comet plunged into the atmosphere of Jupiter. All of the twenty-odd fragments,

collectively

called comet Shoemaker- Levy 9 after its discoverers, were once part of the same object, now

dismembered and strung out along the same orbit. This cometary train, glistening like a string of pearls,

had been first glimpsed only a few months before its fateful impact with Jupiter, and rather quickly

scientists had predicted that the fragments were on a collision course with the giant planet. The impact

caused an explosion clearly visible from Earth, a bright flaming fire that quickly expanded as each icy

mass

incinerated itself. When each fragment slammed at 60 kilometers per second into the dense

atmosphere, its

immense kinetic energy was transformed into heat, producing a superheated fireball that

was ejected back through the tunnel the fragment had made a few seconds earlier. The residues from these

explosions left huge black marks on the face of Jupiter, some of which have stretched out to form dark

ribbons.

Although this impact event was of considerable scientific import, it especially

piqued public curiosity

and interest. Photographs of each collision made the evening television newscast and were posted on the

Internet. This was possibly the most open scientific endeavor in history. The face of the largest planet in

the solar system was changed before our very eyes. And for the very first time, most of humanity came to

fully appreciate the fact that we ourselves live on a similar

target, a world subject to catastrophe by

random assaults from celestial bodies. That realization was a surprise to many, but it should not have been.

One of the great truths revealed by the last few decades of planetary exploration is that collisions between

bodies of all sizes are relatively commonplace, at least in geologic terms, and were even more frequent in

the early solar system.