2024年中考英語詞組辨析:can/ be able to
Ⅰ. can “能”表過去或現在“能力所及”時,與be able to 通用。如:
① He can / is able to speak German. 他會說德語。
② He could / was able to run very fast when I was a boy. 我小時候就跑得很快。
Ⅱ. be able to 的過去時還可表一種“經過努力做到了”的意思。而can的過去時則沒有這種意義。如:
He started late, but he was able to catch the eight o’clock train. 他出發晚了,但他還是趕上了八點鐘的火車。
Ⅲ.can 通常只用于上述兩種時態,而be able to 則可用于各種時態。如:
He has not been able to come since he got hurt. 自從受傷以后,他就一直未能前來。
Ⅳ. 在表猜測時,只能用can,而不能用be able to ,如:
That can’t be your bag. 那不可能是你的書包。