2024届高三英语完形填空文体专项训练3：说明文

高考英语完形填空文体专项训练3 说明文 A (2023·广东揭阳高三统考) Do you sometimes ignore your mom while chatting with friends？If you’re a teen，that’s fairly __1__.And new research may explain why so many __2__ tune out their mom’s voices. Young kids’ brains are very tuned in to their mothers’ voices.But as they grow up，everything __3__.Teenagers’ brains are more tuned in to strangers’ voices.Researchers scanned the brains of 7­ to 16­year­olds as they listened to things said by their mothers or by unfamiliar women.The words were purely __4__：teebudieshawlt，keebudieshawlt and peebudieshawlt.As the kids listened，certain parts of their brains became __5__.This was especially true in brain regions that help us to __6__ rewards and pay attention. This __7__ usually happens between ages 13 and 14.The brain seems to __8__ new needs that come with youth.As we __9__，our survival depends less and less on mom’s support.__10__，we rely more and more on our __11__—friends and others closer to our own age. However，these areas in the youthful brain don’t stop __12__ mom.It’s just that unfamiliar voices become more __13__ and worthy of attention.Mothers’ voices still have special power，especially in times of stress.Studies also showed that levels of stress hormones(荷尔蒙) __14__ when stressed­out girls heard their moms’ voices on the phone. So while both teens and their parents sometimes feel frustrated by missed messages，that’s okay.“That’s the way the brain is __15__，and there’s a good reason for it.” 1．A.strange B．rare C．common D．impossible 2．A.schoolboys B．teenagers C．adults D．girls 3．A.changes B．matters C．evolves D．counts 4．A.complicated B．meaningful C．nonsense D．nonstop 5．A.numb B．small C．calm D．active 6．A.record B．design C．detect D．process 7．A.action B．shift C．ability D．function 8．A.adapt to B．appeal to C．apply to D．attach to 9．A.struggle B．advance C．shrink D．mature 10．A.Once B．Otherwise C．Instead D．Besides 11．A.strangers B．competitors C．partners D．peers 12．