练习册

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

       3.I need some b______ water to drink.

    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：

    5.父母劝我们不要单独外出。

     Our parents advised _________ ________ ________ _________ _________ _________.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    (   )3.I like flowers.I hope to study at a school _______ many flowers and trees in it.

        A.in                         B.with

        C.on                         D.by

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    （2）The shoes with light are used for ________ in the dark.

       A.see       B.seeing      C.sees     D.seen

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    4.Mona knows the styles _______ the clothes well.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

       8.The _______(地震)happened suddenly last year.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    (    )4.I'll go to London ________, and stay there for _______.

            A.sometimes,sometime      B.sometimes,some time

            C.sometime,some time      D.sometime,some times.

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    （2014 厦门） It seems very natural that if you have two dollars and add two dollars to them, you have four dollars. But do you know it took man millions of years to be able to think this way? In fact , one of the most difficult things to teach children is the idea of numbers.

        In ancient times , when a man wanted to tell how many animals he owned, he had no system（体系）of numbers to use. He put a stone or pebble into a bag for each animal. The more animals,the more stones or pebbles he had. It may explain why the word “calculate” comes from the Latin word “calculus” which means “stone”.

        Later on , man used tally marks to count. People would just scratch（划下）a line or tally mark for each object they wanted to count, but they had no word to tell the number.

        The next step in the development of the number system was probably to use fingers. Again we have word that goes back to this. The word “digit” comes form the Latin word “digitus”. It means “finger”! And the fact that we have 10 fingers led to the general use of 10 in the system of numbers.

        The number system we use today was invented by the Hindus in India thousands of the years ago and was brought to Europe during 8th to 11th century by Arab traders. In this system all numbers are written with the nine digits 1,2,3,4,5,6,7,8,9 and zero. It is decimal system（十进制）, that is, it is built on the base of 10.

    1. Man first used ______ for counting.

      A.a line or tally mark      B. a stone or pebble      C. fingers

    2. If A and B each scratched three lines for their own objects to be counted, they      would probably have ______ objects in all.

       A. three          B. six              C. nine

    3.The two Latin words in the text are _______ .

      A. calculus and stone      

      B. digitus and finger          

      C. calculus and digitus

    4.  _______invented the number system we use today.

      A. The Hindus in India     B. Europeans      C. Arab traders

    5. There are ________ steps in the development of the counting system.

      A. two          B. four             C. five

    查看答案和解析>>

    科目：初中英语 来源： 题型：

    (   )9.(2014.陕西)Every day,too much water _______ in our school.We shuold save it.

            A.is wasted                B.wastes

            C.was wasted               D.wasted

    查看答案和解析>>

    同步练习册答案