练习册

  • 练习册
  • 试题
    精英家教网 > 高中英语 > 题目详情
    Scientists are warning that ________ emissions of carbon (碳排放) are cut, we could be heading for an environmental disaster.
    A．beforeB．as
    C．unlessD．in case
    C
    C 考察连词。Before在…之前；as因为，由于；unless除非，如果不；in case万一，假使；句义：科学家警告说如果碳排放不下降，我们会面临环境灾难。根据句义和逻辑关系可知C正确。
    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：高中英语 来源：不详 题型：单选题

    The agent was about to sign his name to the document ________，to our surprise，a stranger broke in to prevent him.
    A．whileB．when
    C．asD．until

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    Beijing is ranked first in terms of traffic jams and expenses for culture ________ Guangzhou is more open to peasant workers than Beijing and Shanghai.
    A．whenB．since
    C．whileD．because

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    —I don't mind how you do it ______ you finish the painting on time.
    —OK, I see.
    A．as well asB．as far as
    C．as long asD．as fast as

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    It will be another 50 years ______ our country is expected to reach the level of a medium developed country.
    A．sinceB．before
    C．thatD．when

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    —I think George doesn't really care for TV plays.
    —Right, ________he still watches the program.
    A．andB．but
    C．orD．so

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    ________ I saw the beautiful­decorated house, I really wondered how she could manage that all by herself.
    A．WhileB．When
    C．As long asD．Now that

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    _______ didn't attend the lecture yesterday won't be given full marks.
    A．Any oneB．Whoever
    C．WhoD．The person

    查看答案和解析>>

    科目：高中英语 来源：不详 题型：单选题

    There will be no going back                  our decision is made.
    A．untilB．unlessC．onceD．before

    查看答案和解析>>

    同步练习册答案