阅读下面的短文，然后根据短文内容回答问题。It's early in the morningand the alarm clock has already rung several time. You have to pull yourselfout of bed and rush to school because you're afraid of being late for school.
As a school student, this is probably a commonexperience for you. But thanks to new rules, students in Zhejiang andHeilongjiang provinces can now stay in bed longer than before.
On Feb 23, the Zhejiang Department of Educationannounced (宣布) a new rule that asksprimary schools to start school later. According to the rule, start times couldbe different among different grades, with students in Grade 1 and 2 starting noearlier than 8:30 am.
A similar guideline (指导方针) was announced by the education department in HeilongjiangProvince on Feb 24. Students from all primary and junior high schools in theprovince have been required (要求) to arrive at school noearlier than 8 am.
According to a 2016 study by the ZhejiangDepartment of Education, half students in Grade 4 slept nine hours or more anight, while the enough sleep time for primary students in 10 hours.
"I welcome the new rule so much. It is sucha wonderful rule that gives my son enough time for breakfast, which isnecessary for his health and growth", a mother named Xu Li said. She isfrom Hangzhou and his son is in Grade 1. These changes have received muchpraise as they make students get enough sleep and enough time for breakfast.
Pushing back school times isn't unique (唯一的) to China. In the United States, schools in at least 21 statesbegan to start school later in 2017, as studies have shown that later schoolstart times could be good for students' development.
