单选题
Those (41) want to teach must study special subjects toward that goal. They work in public schools while being supervised (42) other teachers. They take state examinations. (43) they succeed, they are officially certified or approved to (44) public school teachers. The Bush Administration now (45) a new organization that seeks to expand certification. This group is (46) the American Board for Certification of Teacher Excellence. It says its new system will (47) good non-traditional teacher be certified if they (48) its requirements. The Department of Education (49) the board last year. The goal is to (50) barriers (障碍) to getting more good teachers. (51) just a few years, American public school will be educating three million (52) children. Recent college graduates can be considered (53) the new program. So can people in other jobs who (54) to become teachers. Others are retired people and currently uncertified public school teachers. (55) others are teachers working in (56) and special schools who seek official (57) of their skills. A number of long-established education groups object (58) the new system. They say it will devalue (贬低) the skills of teachers certified (59) the current system. Critics of the new system say teachers certified may lack important classroom (60) .