题目内容
20.The river is so polluted that every day we can see a lot of thingsfloating (漂浮)on the water.分析 这条河流被污染的如此严重以至于我们每天都能看到许多垃圾正漂浮在水面上.
解答 答案 floating.考查非谓语动词.因为The river is so polluted 表示"河流被污染了",所以用see sb doing sth表示"看到许多垃圾正漂浮在水面上".
点评 考查非谓语动词.
see sb doing sth 是强调看见某人正在做某事,着重动作过程,而see sb do sth 是看见某人做某事,着重于看见这件事的发生.
如:I saw him drawing by the river then.
我见他那时正在河边画画.
I saw him draw by the river sometimes
我看见他有时在河边画画
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