四 15選10部分

　　47 N) tend

　　48 L) negative

　　49 H) efficiently

　　50 B) associated

　　51 A) alert

　　52 D) function

　　53 F) definitely

　　54 O) younger

　　55 E) continuing

　　56 G) different

　　五 仔細閱讀部分

　　57 D) Interracial lodging may have diverse outcomes

　　58 D) Being surrounded by white peers motivates a black student to work harder to succeed

　　59 C) Roommates of different races just don’t get along

　　60 D) The school randomly assigns roommates without regard to race

　　61 B) It is unscientific to make generalizations about it without further study

　　62 B) Rates of death from illnesses have risen due to global warming

　　63 A) It was challenged by some climate and risk experts

　　64 B) It is invalid in terms of methodology

　　65 D) Its rough estimates are meant to draw the attention of world leaders

　　66 D) How rich countries can better help poor regions reduce climate hazards