Fill in the blanks with poems

1. In the poem "Bird Singing Stream", the poet wrote the poem in (spring) (full season). From the words (spring mountain, spring stream), it can be seen that the environment at that time was very (quiet) because (people were idle with osmanthus, and the night was quiet and the spring mountain was empty).

2. The word "Buqi". "Send Bao Haoran to East Zhejiang" has a unique conception. The poet interweaves (beauty) and (beautiful scenery) to write, which fully shows the poet's deep affection for (Bao Haoran) and his concern for (beautiful spring scenery).

3. The last two sentences of bamboo and stone refer to (all kinds of harsh natural environment), which further shows the spirit of bamboo (tenacity and straightness).

4. Parents often use "(young people don't work hard), (old and young are sad)" to guide us to study hard; Teachers often use "(what we get on paper is always simple) and (never know how to do it)" to guide us to actively participate in practical exercise.