My mother is a teacher. On weekdays, she gives lessons at school and on Saturdays she works in clubs. On Sundays, she is still busy.

On Sunday morning, mum gets up at six. She cooks breakfast for us first. And then it's time for cleaning. After that, she has breakfast with father and me. At 9, she goes to buy food for lunch in the supermarket. She can have a short rest after lunch. In the afternoon, mum doesn't go out. She helps me with my lessons. She does some reading, too.

    Mother watches TV at about 7 when she finishes (完成) the housework. But at that time she is always tired and falls asleep (睡着) in the sofa sometimes.

与“杨氏之子”中“之”字的意思不同的是哪一个，请选出来。（   ）

如图，平行四边形ABCD的对角线交于点O，且AB=5，△OCD的周长为23，则平行四边形ABCD的两条对角线的和是（　　）

时临仲夏，岁至端午。历史的车轮碾过2200余年，纪念爱国诗人屈原成为每逢此时华夏儿女的一种民族自觉。***主席曾在不同场合多次提到屈原，赞叹其心忧家国，情牵百姓，勇于探索，清正高洁的人格魅力和思想精髓，并几度引用屈原诗歌中的名句来阐述思想，寄情言志。下面关于屈原的叙述，正确的是（    ）

①屈原是战国末期楚国人，他吸收民歌精华，采用楚国方言，创造出一种新体诗歌

②屈原的代表作品《离骚》，是千古传诵的抒情长诗

③每年端午，我们吃粽子、划龙船，据说都是为了怀念屈原这位伟大的爱国诗人

④世界和平理事会把屈原定为世界文化名人

亚洲最高大的山脉是（    ）