1. (2022六上·奉贤期中) Choose the words or expressions and complete the passage（选择最恰当的单词或词语完成短文）

There are four1in a year. They are spring, summer, fall and winter. Spring comes after2. It becomes warmer and the days become longer. Plants begin to grow and many animals have babies. Summer is the3 season. It does not get dark until late. Plants grow fast. In fall, the days get shorter. The weather turns 4. Trees may lose their 5. Some birds fly to warmer places. Winter is the coldest season. It gets dark early in the evening. Plants stop growing and6trees are bare(光秃的) .