北京地区成人本科学士学位英语统一考试2 0 2 3 年 05 月 0 7日 Par t I R e ad in g C om p r eh ension (3 0%) Dire c tio n s: T h e re a re th ree p assages i n this pa r t. E a c h passag e is foll o we d by som e q ues t ions o r unf i nish e d st atements. For e ac h o f t h em there are four ch o ice s mar k ed A, B, C and D. You sh o ul d d ec i d e o n t h e best c hoi c e a nd bla ck en the corresponding letter on the Answ e r Sheet。 Pass a ge 1 Quest i ons I to 5 a r e based on the foll o wing p a ssage: Sp e nding 5 0 mi n utes w i t h a cell pho n e clos e to your ear i s en o ugh to change bra in c ell ac tivit y i n the p ar t of the brai n cl o sest to th e a n tenna(天线). B ut whether t h a t c aus e s an y ha r m is no t c le ar, s c i e n ti s ts at the N ational I n stitu t e of Hea l t h sai d at a co nf e r enc e la st m ont h, a d din g th a t th e st ud y will not likely s ettle concer ns of a link b etwee n cell phones a nd brain ca n ce r. “Wha t we showed i s g l uco s e (葡萄糖) me tabolism(代谢)(a sign of brai n activi t y) in c reas e s i n t he brain in p eopl e who w e r e ex p osed to a ce l l p ho ne i n t he are a c losest t o t he a n tenna,” sa id Dr. N ora V olkow o f the NIH, who se s t u dy w as publ i s h ed in th e Journa l o f the Amer i ca n Me d i c al Associa ti o n. ( 7 6) T h e s tud y was meant t o...