[知识拓展]
(1)be astonished at/ by sth. 对某事感到惊讶
be astonished to see / learn... 看到/得知……感觉很惊讶
be astonished ＋ that从句 对……感到惊讶
(2)astonishing adj. 令人惊讶的(指事物本身的特征)
astonished adj. 感到惊讶的(指人的主观感受)
(3)astonishment n. 惊讶
to one's astonishment 让某人惊讶的是……
in astonishment 惊讶地
