"What happens if there's a power failure "we protested."And our legs have weakened because of no exercise." Some people run,some drive to the gym,and others wear watches to count their steps. But a few trips up and down stairs after breakfast get my blood flowing and the muscles work- ing and I'm set for the day.Occasionally my back aches and I'm reduced to a snail's pace.But speed is no longer a priority. 24.What does the author intend to do by responding to her friends in that manner A.Show her gratitude for their concern 3B.Defend her daily habit of using stairs管i,特出5月a C.Stop them from asking the same question D.Hide her embarrassment about the broken stairs 25.What troubles the author's children most about the stairs A.Their safety B.Their appearance C.Their maintenance D.Their effectiveness 26.How do the stairs benefit the author (代0食酱，诗破共)六测 伦一的 A.They provide a sense of belonging (代1代指，代。【份：心示法》下 B.They serve as a reminder of her past从个t依货，高是， 意C.They help her stay active and mobile沿，.泄程d白t, D.They offer a beautiful view.of the surrounding area 赋…i 27.What sort of person is the author A.Athletic and determined B.Sensitive and traditional C.Practical and economical D.Optimistic and independent Picture this:you're at the grocery store feeling satisfied as you reach for the lowfat yogurt.But then,you find yourself grabbing a pack of sugary cookies.If this sounds famil- iar,you're not alone.To study the complex dance of healthy and unhealthy choices,a re- search team conducted two studies. In Study they lyedeworld purchase dat ve5,000 shopping trips at a large Dutch supermarket chain.Using handheld scanners,shoppers scanned each product as they selected it,allowing the researchers to track the exact sequence of their choices.In Stud- y2,they invited 504 shoppers in the U.S.to participate in an online grocery shopping simu- lation ()Participants made 25 product choices across various categories. Across both studies,acebalancing actpatte appeared the relative healthiness of an initial product choice,was inversely(成反比地)related to the relative healthiness of the next choice.In other words,a healthier choice was typically followed by an unhealthier one, and vice versa(反之亦然)。音 The reseacers found that,in thereaorld shoppingatheathierchoices were balanced out more than unhealthier ones.However,in the online experiment,the opposite was true-unhealthier choices led to more obvious balancing. The studies did not account for how much of each product shoppers purchased or con- sumed.It's possible that the balancing of healthy and unhealthy choices extends beyond just product selection to serving sizes and consumption quantities as well.Additionally,the stud- ies were limited to Dutch and American consumers,The generalizability of the findings to other cultures and food environments remains to be tested. This research is a reminder that our food choices don't happen in isolation.They're influ- enced ... ...
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