Don’t eat or drink in the lab（实验室）. Don’t bring food or ______ to the lab. There are ______ reasons. First, the bowls and cups are very easy ______ and the food or drinks can ______ . They can make the lab dirty. ______, there are many dangerous（危险的）things in the lab. It isn’t good for ______ if you eat them. If you put the food or drinks ______ your mouth in the lab, it is likely（可能的）that you ______ some of the dangerous things. Of course, it is always a good idea to wash your hands ______ you leave the lab. Third, the food or drinks can attract（招引）some mice（老鼠）or flies（苍蝇）. So, if you are hungry ______ thirsty, eat or drink outside the lab.

The PEP School Rules

Every school has its rules. There are some rules in Singapore’s schools, too. Read the school rules below.

The national song Students and teachers in Singapore must sing the national song in the morning every weekday.

The school uniform Students should wear school uniforms at school. They can’t wear their own clothes at school.

Be on time Students should get to school on time every weekday. In the morning, students should arrive at school before 7:15. In the afternoon, they must arrive at school before 12:35. But on Wednesday afternoon they do sports, so they can get to school before 1:15 p.m.

Leave the school Students can’t go out alone (单独). If someone has to leave the school, he or she must be accompanied (陪伴) by a parent or an authorized (经授权的) person.

Visitors to the school Visitors to the school should report to the General Office first. They can’t get into the school without permission (批准).

I’m not happy. There are too many rules in my house. It isn’t fair. I have to get up at five o’clock every morning. I can’t arrive late for school. I have to be there at eight o’clock. I have to come back home after school because I have to do my homework. In the evening I can’t watch TV because I have to help my mother make dinner and wash the dishes. I have to go to bed before ten o’clock. On weekends, I have to stay at home on Saturday morning. I have to clean my room and wash my clothes by eleven o’clock. On Saturday afternoon, I have to go to the children’s palace to learn the piano. Do you have lots of rules? Are they fair?

Your friend,

Alice

Many students in the USA always take the school bus to school every day. Parents think taking the school bus is very safe (安全的). But sometimes it is also dangerous. Some students lose their lives because they break the school bus rules.

Here are some school bus rules:

These rules are good for students. Remember them and don’t break them. So they can keep themselves safe.

When we play games with our classmates or friends, we usually need to make some rules first. I think it’s very important to have rules.

There are lots of rules in my school. We have to get to school on time. We have to wear the school uniform on Mondays and Thursdays. We can’t run in the hallways. We can’t fight. I think it’s very good to have rules at school.

We have to follow traffic (交通) rules. We can go when the lights are green and have to stop when the lights are red. The traffic rules make us safe.

When we take a car and sit next to the driver, we have to wear the safety belt (安全带). Also, little children need to take the back seats. The car rules make us safe, too.

Emily has to follow so many     61     at home. She has to do her homework     62     school. She can’t go out     63     school nights. She has to do the dishes after dinner. Then she can watch TV     64     half an hour. She likes     65    . She usually reads after dinner. She has to go to bed     66     ten o’clock because she has to get up     67     the next morning. She     68     a music club. She has to     69     her guitar every day. She doesn’t think she’s     70    .