关于细节题

smoker

读结构的方法基本掌握了，但是遇到大段的细节内容不看吧不知道会不会出细节题，总是不太放心啊。但是。1.因为行数多。2。有专业内容。3。想略看，结果导致看又没看太懂，效率低。有些像是63/33得第一段。请问各位是怎么处理这种问题的？

Passage 33 (33/63)

Until recently most astronomers believed that the space between the galaxies in our universe was a near-perfect vacuum. This
orthodox view of the universe is now being challenged by astronomers
who believe that a heavy “rain” of gas is falling into many galaxies
from the supposedly empty space around them. The gas apparently
condenses into a collection of small stars, each a little larger than
the planet Jupiter. These stars vastly outnumber the other stars in a
given galaxy. The amount of “intergalactic rainfall” into some of these
galaxies has been enough to double their mass in the time since they
formed. Scientists have begun to suspect that this intergalactic gas is
probably a mixture of gases left over from the “big bang” when the
galaxies were formed and gas was forced out of galaxies by supernova
explosions.