能深入地理解文本内容，熟练掌握本文所涉及的动词过去式。
T: Please read the text by yourselves and circle the verbs of the past form.
我能归纳出实意动词的一般过去式的构成规律。
I can find out the rules of the verbs forms of the simple past tense.
英文的过去式构词并非一成不变，但是孩子能自己发现基本的构词法。
English doesn't always follow that pattern, but the child has discovered a pattern.
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