精英家教网 > 高中英语 > 题目详情

________! Iceberg! Iceberg ahead!

[  ]

A.Look at
B.Look out
C.Look after
D.Look on

练习册系列答案
相关习题

科目:高中英语 来源: 题型:阅读理解

Birds that are half-asleep—with one brain hemisphere (半球) alert and the other sleeping—control which side of the brain remains awake, according to a new study of sleeping ducks.

    Earlier studies have documented half-brain sleep in a wide range of birds. The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves. The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere’s eye stays open and alert. Birds also can sleep with both hemispheres resting at once.

    Decades of studies of bird groups led researchers to predict extra alertness in the end-of-the-row sleepers which tend to be attacked more easily. Sure enough, the end birds tended to watch carefully on the side away from their companions. Ducks in the inner spots showed no preference for gaze direction.

    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 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 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.

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

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.

While sleeping, some water animals tend to keep half awake in order to ______.

A. alert themselves to the approaching enemy

       B. emerge from water now and then to breathe

       C. be sensitive to the ever-changing environment

       D. avoid being swept away by rapid currents

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

查看答案和解析>>

科目:高中英语 来源:2014届江苏宿迁泗洪县洪翔中学高二下学期期中考试英语卷(解析版) 题型:其他题

In today’s world, over 7,000 different languages are spoken. English is one of the most recognized languages in the world and is the language of choice for many people across the globe. For this reason it plays a significant role in communication between different societies and organizations. It is important that global workers can effectively use this style of English in order to be successful in the world business markets.

Global English, also known as international English, is the movement towards using an international standard for this common language. It is also the concept of using the English language to communicate across the world and in various dialects. In today’s society of constant communication among people around the world, it is important that the English language is not tied to one local dialect such as the United States, the UK or Australia, but rather represents a broad usage of language so that it can be understood in all countries. When using global English, it is important to write and speak clearly so it can be understood around the world.

There are a variety of techniques that can be adopted to successfully use global English. Avoid sentences and paragraphs which are long and wordy. Try not to use false subjects, such as sentences that start with “It is” or “This has” which can be confusing. Instead, start the sentence with a specific descriptive subject.

Do not use mini word clusters (串) because they may confuse anyone who is just learning the English languages. Mini words are short, common words with one-to-three letters. Avoid using idioms, such as “the tip of the iceberg” and “right around the corner”. Instead, say exactly what you mean. Also, because many languages do not use pronouns such as “it” or “they”, try to avoid them. Avoid using phrasal verbs, such as “keep up” or “get into” because they aren’t easy to understand in some languages. Finally, since most languages have different formats for writing dates, it is best to write out the month, date and year completely.

In a word, it is important to read and write global English. By understanding the concepts of global English and using proper techniques, a business can successfully grow in the global business economy.

Title

Global English

Theme

English shouldn’t be tied to one local dialect but should represent a broad usage of language so that it can be understood around the world.

Concept of global English

The movement towards using an international standard for English to make it a 1.     of communication across the world and in various dialects.

2.       of global English

Enabling global workers to communicate effectively and 3.      success in the world business markets.

4.       on using global English

● Avoid long and wordy sentences and paragraphs.

● Try not to use false subjects which can result in 5.      .

● Use a specific descriptive subject as the6.     of the sentence.

●7.       using mini word clusters.

● Do not use idioms and express your8.       exactly.

● Try to avoid pronouns like “it” or “they”

● Do not use phrasal verbs because they’re 9.       to understand in some languages.

● Write out the month, date and year in a 10.       manner.

 

 

查看答案和解析>>

科目:高中英语 来源:2014届山东省高二10月月考英语试卷(解析版) 题型:短文改错

文中共有10处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。请按下列情况改正:

此句话多一个词:把多余的词用斜线( )划掉, 在该行右边横线上写出该词,并也用斜线划掉。

此句话缺一个词:在缺词处加一个漏字符号(∧),在该句话右边写出该加的词。

此句话错一个词:在错的词下划一横线,在该词的下边写出改正后的词。

注意:1.每处错误及修改均仅限一词;

     2.只允许修改10处,多者(从第11处起)不计分。

One afternoon on April, 1912, a new ship set off from England to America on it first trip. It was one of the largest and best ship at that time. It was cold, but the ship was pleasant and people are enjoying themselves. The next day was even cold. People could see icebergs here or there. It was night, suddenly, the man on watch shouting “look out! Iceberg!" It was too late, a ship hit the iceberg and came to a stop. There that was a very big hole in the ship and water began to come. Slowly the ship started to go down.

 

查看答案和解析>>

科目:高中英语 来源:2013届福建省高二下学期期末模块测试英语试卷(解析版) 题型:阅读理解

Birds that are half-asleep — with one brain hemisphere (半球) alert(警觉) and the other sleeping — control which side of the brain remains awake, according to a new study of sleeping ducks.

    Earlier studies have recorded half-brain sleep in a wide range of birds. The brain hemispheres take turns sinking into the sleep stage characterized by slow brain waves. The eye controlled by the sleeping hemisphere keeps shut, while the wakeful hemisphere’s eye stays open and alert. Birds also can sleep with both hemispheres resting at once.

    Decades of studies of bird groups led researchers to predict extra alertness in the end-of-the-row sleepers which tend to be attacked more easily. Sure enough, the end birds tended to watch carefully on the side away from their companions. Ducks in the inner spots showed no preference for gaze(注视) direction.

    Also, birds napping (打盹) 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 inner 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 developed over time 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 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.

1.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 organized

    D. they have to constantly keep an eye on their companions

2.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.

3.It can be inferred that _______.

A. Birds never sleep with both hemispheres resting at once.

B. Inner ducks depend on single-hemisphere sleep, rather than total relaxation, as often as birds napping at the end of the line do

C. It is not the first time for scientists to research on birds’ half-brain sleep 

D. Birds hardly sleep without a companion

4.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

 

查看答案和解析>>

科目:高中英语 来源:2010届高考二轮复习必备词汇及应用训练系列:名词(二) 题型:单项填空

162. At the social gathering the weather is the subject which usually breaks the _____.

A.ice

B.iceberg

C.topic

D.Instance

 

查看答案和解析>>

同步练习册答案