• 龙津小学—林育婷-语文-一分钟

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    • Practice2

    Write directions from your place to start. Don't say the name of the place where you finish!

    To Big Ben

    We shall take the boat from Bridge to Big Ben. We shall arrive at Waterloo Bridge fifteen minutes later. We spend twenty minutes there. Take photos of you and the Waterloo Bridge. Then We shall take the boat down the river. We shall arrive at Railway Bridge another fifteen minutes later.

    We shall stop there for sightseeing and photo taking for twenty minutes. Then we shall take Bus 11 down the Red Street. We shall spend one hour at the park. After that we take Bus 12 to our final stop. Guess what it is? Yes, you are right. Our last stop is Big Ben! We shall spend the whole afternoon there. There is a lot to see there.

    • 教学网站

    优秀网站

    人民教育出版社:http://www.pep.com.cn/ 
    亿库教育网:http://www.ekunet.cn/ 
    1299数学站:http://www.12999.com/indexrj1.html 
    中学数学站:http://www.mdv.com.cn/res/index.htm 
    迈达威中小学教学资源库:http://www.mdv.com.cn/res/index.htm 
     

    • Grammar2

    语法小测试

    One 填空

    1、He is playing     borrowed flute.(a/the)

    2、I     ride a bike, but I can not ride a horse. (can/could)

    Two 选择

    3、He      speak English.

    A could B may C can

    4 -I ____ singing when I was a student. What about you, Rose?

    -I couldn't sing at all, but I ____ dancing and playing the piano.

    A. am good in; do well at

    B. do well in; am good at

    C. was good at; did well in

    D. did well at; was good in

    5       he want to see a movie?

    A Do B Does C Is

    6 You      take the book out of the room.

    A can’t B couldn’t C mustn’t

    Three 判断句子语法十否错误

    7 I play the basketball well.

    8 You couldn’t open the computer before the class.

     

     

    答案:

    1、a 2、can

    3、C 4、C 5、 B

    7、X 8、X

     

     

     

     

    • 问题情境二

     如果小明用两种正多边形形状的地板砖来镶嵌地板,那他可以怎样选择呢?为什么?

        提示:用刚才剪出的边长相等的正三角形,正方形,正五边形,正六边形中的两种正多边形镶嵌,哪两种正多边形能镶嵌成一个平面图案?

     

    1.正三角形与正方形的镶嵌

    图案1
    图案2

    2.正三角形与正六边形的镶嵌

     

    图案1

     

    图案2

    3.拓展——其他用两种正多边形镶嵌的图案

    正八边形与正方形的平面镶嵌

    正十二边形与正三角形的平面镶嵌

    结论:当围绕一点拼在一起的两种正多边形的内角加在一起恰好组成一个周角时,这两种正多边形就能镶嵌。

    同理,当围绕一点拼在一起的几种正多边形的内角加在一起恰好组成一个周角时,这几种正多边形就能镶嵌。

    • Story2

    • Song1

    song:How do you know

    • Other1
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