把下列词语按一定顺序排列，并说明理由。（只填序号）     

1．①国庆节  ②儿童节  ③劳动节  ④建军节  ⑤植树节    

排序：_____________________________________________    

理由：_____________________________________________

2．①东亚  ②福州  ③中国  ④亚洲  ⑤福建  

排序：______________________________________________

理由：______________________________________________

3．①林则徐  ②李白  ③朱元璋  ④陆游  ⑤秦始皇

排序：_______________________________________________

理由：_______________________________________________

括号中所给动词的正确形式填空。

1. It's five o'clock. The students ________ (play) football on the playground.

2. You _______ (not pass) the exam if you don't work hard enough.

3. The baby is sleeping. Could you please stop ________ (make) so much noise?

4. This machine ________ (use) for cleaning the house.

5. The man spoke very slowly. He wanted me ________ (understand) what he said.