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    that foot the fall do try they slow both of Galileo lived in the city of Pisa, where there is a leaning tower about 180 76 high. From the top 77 the tower Galileo dropped a light ball and a heavy ball exactly at 78 same time. They 79 fell at about the same speed and hit ground together. He 80 it again and again. Every time he got the same result. At last, he decided 81 he had found the truth about 82 objects. As we know now, heavy objects and light objects fall at the same speed unless air holds 83 back. A feather falls 84 than a stone only because the air holds the feather back more than it 85 the stone. 【查看更多】

     

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    选词填空。
        
    that foot  the  fall  do  try  they  slow  both  of
         Galileo lived in the city of Pisa, where there is a leaning tower about 180 __1__ high.  From the top
     __2__ the tower Galileo dropped a light ball and a heavy ball exactly at __3__ same time.  They __4__ 
     fell at about the same speed and hit ground together.  He __5__ it again and again.  Every time he got the
      same result.  At last, he decided __6__ he had found the truth about __7__ objects.  As we know now,
      heavy objects and light objects fall at the same speed unless air holds __8__ back.  A feather falls
    __9__ than a stone only because the air holds the feather back more than it __10__  the stone.

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    选词填空。
    that foot the fall do try they slow both of
         Galileo, lived in the city of Pisa, where there is a leaning tower about 180    1    high. From the top     2 
     the tower Galileo dropped a light ball and a heavy ball exactly at    3    same time. They    4    fell at about the
    same speed and hit ground together. He    5    it again and again. Every time he got the same result. At last, he
    decided    6    he had found the truth about     7   objects. As we know now, heavy objects and light objects
    fall at the same speed unless air holds    8    back. A feather falls    9    than a stone only because the air holds
    the feather back more than it    10    the stone.
    1.______ 2.______ 3.______ 4.______ 5.______
    6.______ 7.______ 8.______ 9.______ 10.______

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