某些固定詞組中不用冠詞
(1)與by連用的交通工具名稱前：by bus乘公共汽車;by car乘汽車;by bike騎/坐自行車;by train乘火車;by air/plane乘飛機;by sea/ship乘船，但take a bus，in a boat，on the bike前需用冠詞。
(2)名詞詞組：day and night日日夜夜;brother and sister兄弟姐妹;hour after hour時時刻刻;here and there到處。
(3)介詞詞組：at home在家;in surprise驚奇地;at noon在中午;on foot步行;at night在晚上;on duty值日;at work在工作;on time準時;for example例如;in class在上課;on show展覽;in bed在床上。
(4)go短語：go home回家;go to bed上床睡覺;go to school去上學;go to work去上班;go shopping/swimming/boating/fishing去買東西/游泳/劃船/釣魚。
(1)與by連用的交通工具名稱前：by bus乘公共汽車;by car乘汽車;by bike騎/坐自行車;by train乘火車;by air/plane乘飛機;by sea/ship乘船，但take a bus，in a boat，on the bike前需用冠詞。
(2)名詞詞組：day and night日日夜夜;brother and sister兄弟姐妹;hour after hour時時刻刻;here and there到處。
(3)介詞詞組：at home在家;in surprise驚奇地;at noon在中午;on foot步行;at night在晚上;on duty值日;at work在工作;on time準時;for example例如;in class在上課;on show展覽;in bed在床上。
(4)go短語：go home回家;go to bed上床睡覺;go to school去上學;go to work去上班;go shopping/swimming/boating/fishing去買東西/游泳/劃船/釣魚。