AThe undersea world is very beautiful． Now more and more people want to dive in the water to find the secrets there． Scuba diving is a new sport today． It can take you into a wonder-ful undersea world．You will find many strange animals in the sea． Some ar

题目

A

The undersea world is very beautiful． Now more and more people want to dive in the water to find the secrets there． Scuba diving is a new sport today． It can take you into a wonder-ful undersea world．

You will find many strange animals in the sea． Some are as large as a school bus． Many sea animals give out light in the dark and some have sharp teeth．During the day， there is enough light． Here， under the sea， everything is blue and green．When fish swim nearby， you can catch them with your hands． When you have bottles of air on your back， you can stay in deep water for a long time． However， you can-t dive too deep． And you must be very careful when you dive in deep water．The deep sea is not an easy place to live in． It-s cold， and it，s dark， too． The deeper it is， the less sunlight there is． At about 3，000 feet， there is no light at all． It is very dark in the sea． Many fishes have no eyes． Some have big eyes． A few have eyes on one side． Besides the cold and the darkness， deep-sea animals face a third danger-other animals．

Animals eat! They must find food to eat． Many animals eat plants． However， some am-mals eat meat． This means these sea animals have two big jobs． They need to find animals as food， and they have to try not to become other animals' meal．

( )21． Why do people want to dive in the sea? Because ________ ．

A．they want to catch fish

B． they want to find the secrets of the undersea world

C． the sea is deep

D， there are all kinds of plants in the sea

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1.Previous studies show that parents tend to be aware of sleep problems in older children and adolescents and that pediatric practitioners are ( ) likely to identify sleep problems in these age group.：A、less…lessB、less…moreC、more…lessD、more…more

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更多“AThe undersea world is very beautiful. Now more and more people want to dive in the water ”相关问题

  • 第1题：

    He gave up his favorite job()for his family than for money.

    A.rather

    B.much

    C.all D.more


    参考答案：D

  • 第2题：

    以下说法错误的是()。

    A.more命令一次显示一屏文本，显示满之后会自动停下来，并在终端底部打印出“—More—”

    B.使用more命令时，如果要显示下一行，可按Space键

    C.使用more命令时，如果要显示下一页，可按Enter键

    D.使用more命令时，如果要在显示下一屏文本之前进行清屏，可使用“-c”参数


    正确答案：BCD

  • 第3题：

    less命令时more命令的一个简化版本，精简后功能比more弱，但更节约内存和CPU


    错误

  • 第4题：

    Please ________ it on the small table.

    A.many

    B.much

    C.more


    参考答案：C

  • 第5题：

    The(）creates?opportunities?for?more?direct?Integration?of the?physical?world?into?computer-based?systems,resulting?in?efficiently?improvements,economic?benefits,and?reduced human?exertions.

    A.internet of things
    B.cloud computing
    C.big datA
    D.mobile internet

    答案：A
    解析：
    本题翻译：
    （）创造了将物理世界更直接地整合到基于计算机的系统中的机会，从而提高了效率、经济效益，并减少了人类的劳动。
    A.物联网B.云计算C.大数据D.移动互联网
    根据题干意思，物联网就是运用各种信息技术，把物与物，物与人连接起来，实现互联互通，提高效率效益。
    云计算是基于网络“云”把大量数据运用程序分解成小程序进行计算的技术。
    大数据是数据集合。
    移动互联是互联网与移动通信的结合。
    此题重要理解几个名词的含义，除去教材上的定义，更多结合实际应用来理解，所以此题选择A选项。

  • 第6题：

    【多选题】以下说法错误的是（）

    A．more命令一次显示一屏文本，显示满之后会自动停下来，并在终端底部打印出“—More—”

    B．使用more命令时，如果要显示下一行，可按Space键

    C．使用more命令时，如果要显示下一页，可按Enter键

    D．使用more命令时，如果要在显示下一屏文本之前进行清屏，可使用“-c”参数


    C长时记忆的编码方式包括语义编码和表象编码两种，其中语义编码是长时记忆的主要编码方式。

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