3. 看图片，选择恰当的单词写在四线三格上。
cool cold hot warm
① It's ______ in spring.
② It's ______ in summer.
③ It's ______ in autumn.
④ It's ______ in winter.

warm
; hot
; cool
; cold

4. 看图片，选择恰当的句子并将序号填写在括号里。
( )
( ) ( )
( )
① Some trees are yellow.
② We can play in the snow.
③ The plants are green.
④ The flowers are beautiful.

③
; ②
; ④
; ①