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    How was the ball-point pen invented? who John Loud, an American tanner when in 1888 Advantages help write faster, make life easier disadvantages need refilling, sometimes leak where to be used many fields Price low Changes become smaller and lighter Notes: ball-point pen圆珠笔 tanner制革工人 refill再充填 leak 漏 How was the ball-point pen invented? Unit 9 听力答案:(略) 1-5 ACBDB 6-10 ABBDB 11-15 CBBAC 36-40 BADBD 41-45 CCDBD 46-50 CAABB 51-55 DCDA A 56-58 FFT 59. He grew vegetables in his garden and sold them. With the money he set up a chemical laboratory. 60. Yes. Because he was awarded 1,368 different patents during his lifetime. 61. 1847 62. 1931 63. 3 months 64. built a lab 65. invented the phonograph 66. ancient 67. century 68. throw 69. towards 70. developed 71. was made 72. was asked 73. is; used 74. have sent 75. made; finish 76-80 DBGAE 81. helpful 82. how 83. questions 84. being 85. teaches 86. attitude 87. happiness 88. good 89. much 90. learn One possible version: How was the ball-point pen invented? We know that the ball-point pen is one of the most useful inventions. It was invented by an American tanner named John Loud in 1888. And it really helps us write faster and makes our life easier. But sometimes the ball-point pens leak and they need refilling. But they are widely used in many fields. And the price is usually low. Ball-point pens are becoming smaller and lighter. They are really useful in our life. 26-30 DCDCA 31-35 BCACA 36-40 BABDC 1-5 BCACB 【查看更多】

     

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    根据下面的表格写一篇80词左右的短文,标题已给出. 
    Who   John Loud , an American tanner    
    When  in 1888
    Advantages help write faster , make life easier
    Disadvantages need refilling, sometimes leak
    Where to be used many field
     Price slow
    Changes become smaller and lighter
    Notes: ball-point pen圆珠笔,tanner制革工人,refill再填充,leak 漏
                            How was the ball-point pen invented?
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