题目内容
Newton ________ weight (重力) .
[ ]
解析：
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解析：根据题意，牛顿发现了重力，要用一般过去时态，此项属于科学方面的发现，用 discover。故选B。 |
提示：
|
启示： discover意为“发现”。指发现本身就存在，但尚未为人所知的事情、地方、思想等。也用于指发现自己以前不知道的事实。跟find意思很接近，但表示新发现，尤指科学发现时，只能用 discover。其后可跟名词、代词、名词性从句等作宾语，有时也可使用“连接副词／连接代词＋动词不定式”的结构作定语。discover和invent不一样，后者只指“发明”，即创造出世界上不存在的事物。 |
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