题目内容：

根据句意和所给的汉语写出单词，每空一词。

1.Our English teacher always spends as much time as she can __________(解释）the new words to us.

2.It is warm all year round and sometimes is very hot in Kunming, _______________ ( 尤其) in May and June.

3.That kind of animal has four ______________  (胃). That’s amazing!

4. Their house is very ____________(类似的) to ours, but it’s bigger than ours..

5. The two stories happened in different_______（背景）of times.