题型:阅读理解 题类:模拟题 难易度:困难
福建省2018届高三毕业班英语质量检测试卷
On a college camping trip, curiosity about waves and sand caused Rob Thieler to study shorelines around the world. Thirty years later and now a U.S. Geological Survey research geologist, Thieler, is combining science and smartphone technology to help study an endangered bird, the Atlantic Coast piping plover.
The piping plover is a shorebird that breeds(繁殖)along the Atlantic Coast, the Great Lakesand the Great Plains. Rising sea levels associated with climate change, as well as increased development in their beach habitats(栖息地), threaten the species(物种). To help track changes in piping plover habitats, Thieler developed a free app called iPlover in 2012. This is a marked change from the typical way scientists collect data, which involves gathering information using specialized equipment or writing in notebooks and then putting into spreadsheets.
Since releasing iPlover, scientists have gathered data across 1500 km of breeding range. Thatequals about a third of the distance across the U.S., which is a large area to cover for only two thousand breeding pairs of piping plovers on the east coast. Instead of having to travel and spend days at each site, a number of cooperators in the field use the app to collect and send data, allowing scientists to gather data more efficiently. It also allows them to collect data at the same time during each breeding season, providing a better picture of changes that happen over longer periods of time. And fast, centralized access means scientists can look at data quickly to get a real-time idea of where and how piping plovers are using their habitats.
While iPlover is used by trained field staff, other apps like the U. S. Geological Survey'sweb-based “iCoast—Did the Coast Change?” invite citizen scientists to identify coastal changes by comparing bird's-eye-view photographs taken before and after storms. All the information scientists and citizen scientists alike collect helps federal and state agencies create policyplans for addressing climate change impacts (影响) worldwide.
Lots of people stress out about talking in front of the class or getting laughed at if they make a mistake in front of an audience. {#blank#}1{#/blank#} The “stress hormones" that your body produces at times like these can actually help you focus.
But when worry and stress about performing get to be too much, these hormones give people that “red alert(紧急状态)” feeling—the one that causes you to feel cold or sweaty, or get butterflies in your stomach. {#blank#}2{#/blank#}
Be prepared. {#blank#}3{#/blank#} Rehearse(排练) as much as you can and practice in front of others at every opportunity. Most of all, think positively. Tell yourself “I'll be OK" or “I can do this" even if you are not 100% sure of it
Look after yourself. Before big performances it's easy to let taking care of yourself slip as you spend too much time on rehearsals and practice. {#blank#}4{#/blank#} Exercise can also help you feel good, and along with sleep and nutrition, is an excellent way of keeping those stress hormones from getting out of control.
Find out what the experts do. You can find books, DVDs, and online information about how to give your best when you perform, depending on what type of performance you're preparing for {#blank#}5{#/blank#} Or ask the cast of your school play or your drama or music teacher how they beat stage fright. And if your parents or grandparents ever performed, they may have their own secrets to share.
A. Confidence helps beat stress hormones. B. The following tips can help you avoid that feeling. C. You're less likely to freeze up if you're well prepared. D. You can do this whether you're performing alone or as part of a group. E. Check out stories about Olympic gymnasts or your favorite star to get their tips. F. Feeling nervous before a performance is part of your body's way of helping you do your best. G. You'll look and feel your best if you get enough sleep and eat healthy meals before your performance. |
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