高一下学期unit16scientistsatworkbb内容摘要：
so soon in weather with rain and strong winds. the frame of the kite by making a small ______ of two pieces of light wood. a tail to the frame and a long string to the cross so you can control the kite. , fix a very piece of metal, pointing a foot or more above the frame, to the top of the longer stick of the cross. ribbon, which must not get wet, will you ______the electricity. conducted chargedtearcross tie sharp protect from Step4. Fast reading Read the following statements and decide if they are true or false. 1752 scientists already knew what lightning is. ﹙ ﹚ 2. Franklin was helped by a friend to do the experiment.( )。阅读剩余 0%
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