Question

18．If you want to be a citizen scientist，the National Science Foundation（NSF） has got you covered．NSF supports citizen scientists across all areas of science，whether your passion（熱情）is scanning the night sky，exploring your own backyard or playing video games．
Join a Flock of Birders
eBird is an online platform that allows bird-watchers to record their sightings on a massive online database．With more than 100，000 active users，eBird involves bird population，distribution（分布）and habitat that users can explore in real time．In May 2015，there were 9.5 million records uploaded．
Count Every Drop
The Community Collaborative Rain and Snow Network is the largest provider of daily rainfall observations in the United States．Volunteers set up rain instruments and record data every time a rain，or snow storm passes．Data is organized and shared on the CoCoRaHS website，and used by the National Weather Service，scientists，farmers and so on．
Join the Plankton Party
Without plankton（浮游生物），life in the ocean would not exist．These tiny things form the base of the food chain and play an important role in the global carbon cycle．Plankton Party encourages citizen scientists to identify images snapped（拍照）by the ISIIS，an underwater robot．Classifying the images helps researchers understand plankton diversity，habitat and behavior．

21．What can bird-watchers do with eBird？C
A．Watch birds through satellites．
B．Choose their favorite birds．
C．Upload their sightings to a database．
D．Observe the night sky
22．Which subject can you learn about if you join Count Every Drop？D
A．Farming．
B．Biology．
C．Animals．
D．Weather．
23．What's the intention of the Plankton Party？A
A．To help researchers to learn about plankton．
B．To raise citizens'interest in plankton．
C．To inform citizens of how ocean life survives．
D．To tell us what ISIIS does with ocean life．

Answer 1

分析 你想成為一名公民科學家，NSF支持所有科學領域的公民科學家，本文介紹了集中成為公民科學家的國家科學基金會．

解答 21．C  細節理解題．根據句子；eBird is an online platform that allows bird-watchers to record their sightings on a massive online database．eBird是一個在線的平臺使觀鳥者記錄他們的觀測在一個巨大的在線數據庫．所以C選項上傳他們的目擊到數據庫是正確的．
22．D 細節理解題．根據句子：Volunteers set up rain instruments and record data every time a rain，or snow storm passes．Data is organized and shared on the CoCoRaHS website，and used by the National Weather Service，scientists，farmers and so on．志愿者建立雨儀器記錄數據，每一次雨或暴風雪過去．數據是有組織的、可共享的CoCoRaHS網站，并被國家氣象服務站，科學家、農民等應用．可見這家可讓人學到更過的天氣的知識，所以答案選D．
23．A 細節理解題．根據句子：Plankton Party encourages citizen scientists to identify images snapped（拍照）by the ISIIS，an underwater robot．Classifying the images helps researchers understand plankton diversity，habitat and behavior．可見Plankton Party可幫助研究人員了解浮游生物，所以答案選A．

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