不错哦 Also, birds napping at the end of the line depend on single-hemisphere sleep, rather than total relaxation, more often than inner ducks did．Turning 16 birds through the positions in a four-duck row, the researchers found that compared with 12 percent for birds in internal spots, outer birds half-asleep during some 32 percent of napping time． “We believe this is the first evidence for an animal behaviorally controlling sleep and wakefulness at the same time in different regions of the brain,” the researchers say． The results provide the best evidence for a long-standing assumption that single-hemisphere sleep evolved（发展）as creatures scanned for enemies．The preference for opening an eye on the lookout side could be widespread, he predicts．He’s seen it in a pair of birds napping side-by-side in the zoo and in a single pet bird sleeping by a mirror．The mirror-side eye closed as if the reflection were a companion and the other eye stayed open． Useful as half-sleeping might be, it’s only been found in birds and such water animals as dolphins, whales, and seals．Perhaps keeping one side of the brain awake allows a sleeping animal to surface occasionally to avoid drowning． Studies of birds may offer unique insights（深刻的理解）into sleep．Jerome M．Siegel of the UCLA says he wonders if birds’ half-brain sleep “is just the tip of the iceberg．” He supposes that more examples may turn up when we take a closer look at other species． 77．According to the passage, birds often half sleep because ______． A．they have to watch out for possible attacks B．their brain hemispheres take turns to rest C．the two halves of their brain are differently structured D．they have to constantly keep an eye on their companions 78．What is implied about the example of a bird’s sleeping in front of a mirror? A．An imagined companion gives the bird a sense of security． B．Birds prefer to sleep in pairs for the sake of their security． C．The phenomenon of birds napping in pairs is widespread． D．A single pet bird enjoys seeing its own reflection in the mirror． 79．While sleeping, some water animals tend to keep half awake in order to ______． A．alert themselves to the approaching enemy B．emerge（浮现）from water now and then to breathe C．be sensitive to the ever-changing environment D．avoid being swept away by rapid currents 80．By saying “just the tip of the iceberg”, Siegel suggests that ______． A．half-brain sleep has something to do with icy weather B．the mystery of half-brain sleep is close to being solved C．most birds living in cold regions tend to be half sleepers D．half-brain sleep may exist among other species 非选择题部分（共40分） 第三部分：写作(共两节，满分40分) 第一节：短文改错(共10小题；每小题l分，满分l0分) 下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。 增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。 删除：把多余的词用斜线(＼)划掉。 修改：在错的词下划一横线，并在该词下面写上修改后的词。 注意：1．每处错误及其修改均仅限一词； 2．只允许修改l0处，多者(从第ll处起)不计分。
不错哦
例如： It was very nice to get your invitation to spend ∧ weekend with you. Luckily the I was completely free then, so I'll say "yes". I'll arrive in Bristol at around 8 p. m. am on a Friday evening.
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Tag:高三英语教学设计，高三英语教学设计方案，教学设计 - 英语教学设计 - 高三英语教学设计