To get a sense of how women have progressed in science, take a quick tour of the physics department at the University of California, Berkeley. This is a storied place, the 1 of some of the most important discoveries in modern science-starting with Ernest Lawrence' s invention of the cyclotron(回旋加速器) in 1931: A generation ago, female faces were 2 and, even today, visitors walking through the first floor of LeConte Hall will see a full corridor of exhibits 3 the many distinguished physicists who made history here, 4 all of them white males. But climb up to the third floor and you'll see a 5 display. There, among the photosof current faculty members and students, are portraits of the 6 head of the department,Marjorie Shapiro, and four other women whose research 7 everything from the mechanics of the universe to the smallest particles of matter. A sixth woman was hired just two weeks ago. Although they're still only about 10 percent of the physics faculty, women are clearly a presence here. And the real 8 may be in the smaller photos to the right; graduate and undergraduate students, about 20 percent of them female. Every year Berkeley sends its fresh female physics PhDs to the country' s top universities.. That makes Shapiro optimistic, but also 9 " I believe things are getting better," she says, "but they' re not getting better as 10 as I would like."[A] circumstance [B] confidence[C] covers [D] current[E] deals [F] different[G] exposing [H] fast[I] honoring [J] hope[K] presently [L] rare[M] realistic [N] site[O] virtually