给下列短语选择正确的中文翻译，只填序号
| A．当心！ | B．头疼 | C．我迟到了. | D．玩具马 |
( ) （1）I’m late . ( ) 2、toy horse
( ) （3）have a headache ( ) （4）be careful!
We should not cuttrees.
A. off B. upC. down
The weather is gettingin August.
A. more hot B. hoterC. hotter
Trees can keepcool.
A. usB. weC. our
We need more trees.
A. plantB. to plantC. planting
听音，选出你所听到的单词。
（）（1）A . cleanB. cool C. keep D. car
（）（2）A . hot B. hotter C. get D. getting
（）（3）A .buildingB. changing C. singing D. interesting
（）（4）A .plant B. down C. becomeD. long
（）（5）A .spring B. air C. freshD. rice