1. Xiaohong walks in the street, walking 60 meters every minute. After leaving home 1 1 minute, her mother found Xiaohong's math book at home and immediately chased Xiaohong with it at a speed of 280 meters per minute. A few minutes after mom left, did she catch up with Xiaohong?
60* 1 1=660 meters-Xiaohong reached 660 meters away, and her mother began to catch up.
280-60 = 220- Mom walks 220 meters more than Xiaohong every minute.
660/220=3
Mother caught up with Xiaohong three minutes after the departure.
There is a circular pool in the park with a perimeter of 1449 meters. A and B are walking along the circular pool. A walks 36 meters per minute, and B walks 38 meters per minute. If two people go to the same place and the same direction at the same time, how long does it take for A to catch up with B for the first time? If two people walk in the same direction at the same time, how long will it take them to meet for the first time?
38-36 = 2-A walks 2 meters more than B per minute.
1449/2=724。 five
Then 724. Five points. A can catch up with B for the first time.
1449/(38+36)= 19 and 19/37- the total distance divided by the total speed can be used to calculate the time.
It takes 19, 37 minutes for two people to meet for the first time.
Two. language
1. Write four idioms (gentleness) (grace) (prestige) (grace).
Write four idioms describing people's excitement and joy (ecstatic) (beaming) (beaming) (ecstatic)
Fill in the words
Li Lili Li
(Li) style character
4. Arrange the words in the following groups in a certain order.
1. Spring Festival Tomb-Sweeping Day Dragon Boat Festival Mid-Autumn Festival Chongyang (time from morning till night)
2. Books, reference books, dictionaries and modern Chinese dictionaries (from large to small)
3. Washington Lincoln Nixon Clinton George W. Bush (from morning till night)
4. Han Dynasty, Sui Dynasty, Tang Dynasty, Song Dynasty and Ming Dynasty (from morning till night)
5. Write three idioms that describe the qualities of heroes (helping others) (sacrificing oneself for others) (being selfless).