六级Researchers from Brown University found that a network in the left hemisphere of the brain "remained more active" than the network in the right side of the brain.

布朗大学的研究人员发现，大脑左半球的网络比大脑右侧的网络“更活跃”。

2017年6月六级真题（第三套）阅读 Section A

四级She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones.

她计算出，如果左半球在陌生的环境中保持警觉以保持警惕，那么它会对不规则的嘟嘟声做出反应，将人们从睡眠中唤醒，并忽略定时的嘟嘟声。

2017年12月四级真题（第一套）阅读 Section C

六级As some countries expand operations in Antarctica, the United States maintains three year-round stations on the continent with more than 1,000 people during the southern hemisphere's summer, including those at the Amundsen-Scott station, built in 1956 at an elevation of 9,301 feet on a plateau at the South Pole.

随着一些国家扩大在南极洲的业务，美国在南半球夏季在该大陆维持了三个全年有1000多人的观测站，其中包括1956年在南极高原海拔9301英尺处建造的阿蒙森-斯科特观测站。

2016年12月阅读原文

六级For example, dolphins, as well as other marine animals, shut down one hemisphere of the brain when they go to sleep.

例如，海豚和其他海洋动物在睡觉时会关闭大脑的一个半球。

2017年6月六级真题（第三套）阅读 Section A

六级As some countries expand operations in Antarctica, the United States maintains three year-round stations on the continent with more than 1,000 people during the southern hemisphere's summer, including those at the Amundsen-Scott station, built in 1956 at

随着一些国家扩大在南极洲的业务，美国在南半球的夏季在该大陆维持了三个全年有1000多人的站点，其中包括1956年在南极洲修建的阿蒙森·斯科特站

2016年12月六级真题（第三套）阅读 Section B

六级When the researchers repeated the laboratory experiment on the second and third nights they found the left hemisphere could not be stimulated in the same way during deep sleep.

当研究人员在第二晚和第三晚重复实验室实验时，他们发现在深度睡眠时，左半球不能以同样的方式受到刺激。

2017年6月六级真题（第三套）阅读 Section A

四级On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.

仅在第一个晚上，左半球(半球) 他们大脑的一半睡眠深度不如右半球。

2017年12月大学英语四级考试真题（第1套）

四级Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night.

由于好奇左半球是否真的保持清醒以处理周围环境中检测到的信息，佐佐木博士重新进行了实验，同时向睡眠的参与者发出了定时的嘟嘟声(蜂鸣声) 相同音调的不规则嘟嘟声和不同音调的不规律嘟嘟声。

2017年12月大学英语四级考试真题（第1套）

考研Also, the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere, possibly resulting in an alteration of the earth’s chief food-growing zones.

此外，大气温度的升高将导致北半球气候的巨大变化，可能导致地球主要粮食种植区的变化。

1992年全国硕士研究生入学统一考试英语试题

考研However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling.

然而，大部分燃料在北半球燃烧，那里的温度似乎在下降。

1992年全国硕士研究生入学统一考试英语试题

考研Strengthening economic growth, at the same time as winter grips the northern hemisphere, could push the price higher still in the short term.

在北半球冬季来临的同时，经济增长的加强可能会在短期内推高价格。

2002年全国攻读硕士学位研究生入学考试英语试题