新冀教版必修一Unit 2单元分层练（基础达标+能力提升）（原卷+解析卷）

中小学教育资源及组卷应用平台 冀教版必修一Unit2单元分层练（基础达标+能力提升）（原卷） 一、根据提示或首字母填写出单词的正确形式 A Big Meal to Beat Jet Lag Before a long-distance air trip, we've always felt guilty for enjoying a big meal in departure lounges, especially in the middle of the night. But passengers finally have an excuse 　1． 　 (eat) their fill because a big meal can help beat jet lag. It has long been known that darkness prompts the body to feel sleepy by sending signals to a central part in our brain. And in the same way, natural light makes us feel 　2． 　 (awake). But scientists also discovered that each of our millions of cells had 　3． 　 own tiny sleep pattern which contribute to the body overall 　4． 　 they are all taken together. Besides, they found insulin(胰岛素)could kick-start the tiny sleep patterns 　5． 　 eachcell and encourage our bodies to change the time at 　6． 　 we want to fall asleep. According to a recent study 　7． 　 (conduct) by a group of researchers at Yamaguchi University in Japan, foods which kick-start a big release of insulin, such as carbohydrates, can be crucial to 　8． 　 (reset) our body clock when we get out of sync(同步) with our natural cycle. The study tested the theory on mice which 　9． 　 (feed) unusually large meals during the night. Researchers found that insulin was released when the mice ate food high in sugar, and it had an effect on the cells' biological clock. Dr. Makoto Akashi, the leading researcher of the study, said, "Insulin may help the stomach clock synchronize with mealtime. For example, for jet lag, dinner 　10． 　 be enriched with ingredients promoting insulin secretion(分泌), which might bring forward our biological clock. " 二、选词填空（词汇运用） Choose the proper words to complete the following sentences. Each word can be used only once. Note that there are two more words than you need. A. remote B. eventually C. demanding D. matureE. polished F. discipline G. stretch H. respondI. delight J. lack K. refer L. constantly 11．The conventional wisdom is that boys tend to　 　more slowly than girls. 12．You should　 　yourself, get uncomfortable and get out of your comfort zone, and then keep getting out. 13．A(n)　 　of qualifications can be a major obstacle to finding a desirable job. 14．Richard picked up the　 　control and turned on the television as soon as he got home. 15．The term "time machine", coined by Wells, is now universally used to　 　to a vehicle transporting people into the far future. 16．Some people are so envious that they are angry when anyone does well, and some people are so ill-intentioned that they　 　 in other people' s misfortunes. 17．Even very young premature babies　 　to their mother' s presence. 18．It is a technically　 　piece of music to play, so only a few artists dare to perform at live concerts. 19．The sun is　 　evaporating the earth's moisture, which then gathers in clouds and eventually falls as snow, hall, sleet, or r ... ...