课时作业(一) ⅰ.单项填空 1. at night, i watch more films and i usually ______ the tv at about two o’clock. i never watch tv all night. a. switch on b. switch off c. switch over d. switch down 答案 b 解析 switch on“打开”;switch off“关掉”;switch over“转换”;switch down“调小”。 2. ______ “tourism year” to be separately held in russia in 2012 and in china in 2013 will help ______ two peoples understand each other better. a. /; / b. the; / c. the; the d. a; the 答案 c 解析 考查冠词的用法。两个空格处都需要填定冠词the,分别