语法 were held fixedHe also decided that if an electric current in a wire could move a magnet,then if the magnet were held fixed,and the wire allowed to be mobile,then a current flowing in the wire should cause it to move.if the magnet were held fi

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语法 were held fixedHe also decided that if an electric current in a wire could move a magnet,then if the magnet were held fixed,and the wire allowed to be mobile,then a current flowing in the wire should cause it to move.if the magnet were held fi
语法 were held fixed
He also decided that if an electric current in a wire could move a magnet,then if the magnet were held fixed,and the wire allowed to be mobile,then a current flowing in the wire should cause it to move.
if the magnet were held fixed这句中FIXED是什么用法 为什么不是TO BE FIXED

语法 were held fixedHe also decided that if an electric current in a wire could move a magnet,then if the magnet were held fixed,and the wire allowed to be mobile,then a current flowing in the wire should cause it to move.if the magnet were held fi
if the magnet were held fixed中的fixed是主语（the magnet）的补语；主语补语是由主动语态中的宾语补足语变化而来的.比如if the magnet were held fixed这句话如果使用主动语态,我们可以这样说：if we(主语) hold（谓语） the magnet（宾语） fixed（宾语补足语）.但是在科技文章中,一般是没有动作的执行者的,也就是说句子的主语一般不会是“人”,所以被动语态用得就多.
这句话里不用to be fixed是因为不定式一般表示将要做的动作.if the magnet were held fixed的意思是“如果将磁体/铁固定”,而不是if the magnet were held to be fixed“如果磁体/铁将要（被）固定”吧.（我对这种专业性的内容是外行,见笑.）

语法 were held fixedHe also decided that if an electric current in a wire could move a magnet,then if the magnet were held fixed,and the wire allowed to be mobile,then a current flowing in the wire should cause it to move.if the magnet were held fi When were the Olympic Games held Beijing? the2000 olympic games were held in where were the first olympic games held? a privately held Chinese company语法 were held用法were heldare heldwill be held在什么情况下用? The sports meeting _____ last weekend.A.is holding B.is held C.was held D.were held The 30th Olympic Games( )in london in 2012 A was held B were held The 2008 Olympic Games_____in Beijing.空上是填:was held还是were held? 可以用when and where the meeting tobe held吗?to be held 是什么语法形式? Where were the 2005 National Games of China be held 奥林匹克运动会的英文the Olympic Games was还是were held? Where were the 5th Asian Games be held? Where were the 4th East Asian Games be held? where were the first international olympic games held? Which country were the 2006 World Cup held? 英译汉 语法 being held 这种语法是什么 怎么用when is this year's festival being held? Do you know when and where 2010 World Table Tennis Championships____?A.held B.will be held C.were held 为什么要用were?而不是用was?