Lesson 61 Trouble with the Hubble 哈勃望远镜的困境

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单词讲解

  • space n.空间
    outer space
    There is no space in my room.

  • distant adj.遥远的

  • distance n.距离
    different adj.
    difference n.
    important adj.
    importance n.
    significant adj.
    significance n.
    convenient adj.
    convenience n.

  • billion n.十亿

语法讲解

  • The Hubble telescope was launched into space by NASA… at a cost of over a billion dollars.

  • Right form the start there was trouble with…
    There be + n. + 介词短语
    There is a girl in the classroom.
    There are problems in front of us.

  • The pictures it sent us were very disappointing because its main mirror was faulty.
    分析句子 :
    标准化的步骤
    标点符号,关键词,分析主谓
    The pictures it sent(谓) us were(谓) disappointing…!
    名词 + 从句 是定语从句
    他发给我的图片令人失望.

  • NASA is… going to put the telescope right, so it will … be sending up four astronauts to repair it.

  • A robot-arm … will grab the telescope
    and hold it .
    while the astronauts make the necessary repairs.

  • By the time you read this, the Hubble’s eagle eye will have sent us… pictures.
    by + 时间 表示”截止到…时间”,与完成时连用.
    by the time + 句子 引导时间状语从句
    by the time you read this 时间状语从句,一般现在时表示将来
    by the time 一般现在时到将来用将来完成时

知识扩展

  • 将来完成时 考点 :
    by + 将来完成时
    by the time + 句子(一般现在时)