A Look and say(根据提示,编创对话)
a　　b
S1: ... makes ... messy/dirty.
S2: We can ...

a. S1: Throwing rubbish makes the classroom messy. S2: We can put the rubbish in the bin.
b. S1: Littering makes the park dirty. S2: We can pick up the litter.

B Listen and match(听录音,将相关的图片连线)

1 b 2 a 3 d 4 c

1 A: What the city messy and dirty five years ago?
B: Rubbish and black smoke the city messy and dirty. (make)
2 To (keep) the air clean, we should (take) the bus or metro to work.
3 Let’s (move) the desk to Helen’s bedroom.
4 There were some (factory) in the city centre many years ago.
5 A: Let’s (walk) to school today, Mike.
B: Good idea!

1 made, made 2 keep, take 3 move 4 factories 5 walk