A:a - 4 b - 5 c - 2 d - 3 e - 6 f - 1
B:1 - 5 b a b b a
C:1 - 4 b b a a
D:1、smoking,smoke
2、plant,help
3、excited,Chinese
4、paper,plastic
E:a waste befriends c food d save e world
1、food
2、waste
3、save
4、efriends,world
F:1、What food are you going to make?
2、The sign means the floor is wet.
3、Jack is excited to get many red packets.
4、People use plastic to make bags and bottles.
5、Anna is going to watch fireworks tomorrow.
G:a - 2 b - 4 c - 1 d - 5 e - 3
H:1、signs
2、mean
3、What
4、means
5、Danger
6、can’t
7、floor
8、Wet
9、careful
10、About
I:1 - 5
J:1 - 5 a b b b B
K:略
L:略