四、阅读短文，选择正确的答案。
My hometown is a beautiful city. It's clean and tidy most of the time. But sometimes it's dirty. Smoke from cars and factories makes the air dirty. We must move some factories away from the city. Students can take the bus and the metro to school. But some people like throwing rubbish everywhere. So sometimes the streets are messy and dirty. We hope people can put it in the bin. If people don't obey the rules，they will be punished(被惩罚). Then，the city will be more and more beautiful.
()1. Sometimes the city is .
A. clean
B. tidy
C. dirty
()2. To keep the air clean，we can move some away from the city.
A. schools
B. factories
C. shops
()3. In the city，some people like to everywhere.
A. shout
B. spit(吐痰)
C. litter
()4. make(s) the streets messy and dirty.
A. Cars
B. Rubbish
C. Bins
()5. If people don't put rubbish in the bin，they will .
A. be punished
B. lose their jobs
C. be fined(被罚款)

1.C；2.B；3.C；4.B；5.A

1. 定位短文第2、3句“It's clean and tidy most of the time. But sometimes it's dirty.”，可知城市有时是脏的，选C。
2. 根据短文“We must move some factories away from the city.”，可知为保持空气清洁，可将一些工厂搬离城市，选B。
3. 短文提到“But some people like throwing rubbish everywhere.”，litter表示扔垃圾，与throw rubbish意思一致，选C。
4. 由短文内容可知，人们乱扔垃圾导致街道脏乱，对应rubbish，选B。
5. 从短文“If people don't obey the rules，they will be punished(被惩罚).”可知，不把垃圾放进垃圾桶属于不遵守规则，会被惩罚，选A。

一、听录音，根据所听对话及问题，选择正确的答案。(听两遍)
()1. A. We don't know.
B. Yes，it is.
C. No，it isn't.
()2. A. Walk to school.
B. Sweep the floor.
C. Clean the blackboard.
()3. A. Take the bus.
B. On foot.
C. Take the metro.
()4. A. She saw a bin.
B. She threw the rubbish in the bin.
C. She threw the rubbish on the ground.
()5. A. He got a fever.
B. He hurt his leg.
C. He caught a cold.

暂无法确定，请补充录音对话及问题内容。

本题为听力类选择题，需要依据所听对话及问题内容来选择正确答案，但目前缺少对应的录音对话与问题文本，无法开展解题分析，请补充相关录音内容后再进行作答。