1、use可以作動詞和名詞
(1) 作動詞時,“使用,利用,服用(毒品)”
過去式used,過去分詞used,現(xiàn)在分詞using.
(2) 作名詞時,“使用,使用權(quán),功能”
形容詞useful , 副詞usefully
2、關(guān)于use 的三個固定句型:
(1) used to do sth. "過去常常做某事"
(2) be used to do sth. "被用來做某事"
(3) be used to doing sth "習(xí)慣做某事"
3、辨析:
(1)used to do sth. "過去常常做某事"
to 后加動詞原形,否定句為didn't use to或used not to
eg: I used to take a walk after supper every night.
(我過去常常在每天晚上飯后去散步)
(2) be used to do sth. "被用來做某事"
to 后加動詞原形
eg: Wood is used to make paper.
(木材被用來造紙)
(3) be used to doing sth "習(xí)慣做某事"
to是介詞,后加名詞,動名詞或代詞
eg: He is used to getting up early.
(他習(xí)慣早起)