练习册

  • 练习册
  • 试题
    精英家教网 > 初中英语 > 题目详情

    8.  The old man needs m_________   (医疗的）care. He's very weak.

    练习册系列答案
    年级 高中课程 年级 初中课程
    高一 高一免费课程推荐！ 初一 初一免费课程推荐！
    高二 高二免费课程推荐！ 初二 初二免费课程推荐！
    高三 高三免费课程推荐！ 初三 初三免费课程推荐！
    相关习题

    科目：初中英语 来源： 题型：

    3.  有价值的任何东西   ________________

    4.  粉色的发带       _________________

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    1.  奇怪的事情 ________________                

    2.  背景信息  ________________

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    1.  A bus_______ (drive) is responsible for the safety of his passengers.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    w.阅读理解

    (2014 •天津）Is there intelligent (有智力的）life on other planets? For years, scientists said "no," or "we don't know. ，， But today this is changing. Seth Shostak and Alexandra Barnett are astronomers (天文学家).They believe intelligent life exists (存在) somewhere in the universe. They also think we will soon contact these beings (人，生物).

       Why do Shostak and Barnett think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. " This is long enough for other planets to have intelligent life," say Shostak and Barnett. The second reason is size―the universe is huge. "Tools like the Hubble Telescope (哈勃望远镜）have shown that there are at least 100 billion galaxies," says Shostak. "And our galaxy, the Milky Way, has at least 100 billion stars. Som^ planets going around these stars might be similar to Earth."

        In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes (高倍望远镜)allow scientists to discover smaller planets―the size of Mars or Earth一in other solar systems. These planets might have intelligent life.

        Have beings from space already visited Earth?

       "Probably not," says Shostak. "It's a long way away. However, intelligent beings may contact us in other ways, such as radio signals (信号）.In fact, they may be trying to communicate with us now, but we don't have the right tools to receive their messages. However, this is changing. By 2025, we could make contact with other life forms in our universe and we might help each other."

    (       )1. Seth Shostak and Alexandra Barnett are_____ .

    A. astronomers                B. farmers

    C. singers                   D. drivers

    (       )2. What is the best title for Paragraph 2?

    A.  The Age and Size of Earth

    B.  Our Galaxy:The Milky Way

    C.  Why Intelligent Life Might Exist

    D.  Earth ： The Only Planet with Intelligent Life

    (     )3. Why was it hard to look for signs of intelligent life in the universe in the past?

    A.  There were not any smaller planets.

    B.  There were not any powerful telescopes.

    C.  The astronomers were not interested in them.

    D.  The Milky Way didn't exist at that time.

    (     )4. Why haven't beings from space visited us yet according to Shostak?

    A.  They're afraid of us.

    B.  It's a long way away.

    C.  They didn't want to see us.

    D.  They don't know how to use radio signals.

    (     )5. What does the underlined phrase "life forms" in the last paragraph mean?
    A. Messages.               B. Tools.

    C. Intelligent beings.       D. Radio signals.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    3.  He's visited the place where his a_____________ (祖先) lived.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    (      )3. The book is on Tina's desk. __________it is hers.

    A. Maybe                 B. May be

    C. Can                    D. Might

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    5.  房间里一定有人在哭泣。一

    There _______  _______ _ someone _______ _ in the room. 

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    2.   The 1________ of the song are very beautiful and sound like poems.

    查看答案和解析>>

    同步练习册答案