Smartphones have become a part of our daily lives. However, to protect younger ___51___ （ student ） eyesight and make sure they focus on their studies, primary and middle schools will have more specific rules to limit students' mobile phone use on campus.
The Ministry of Education released （发布） ___52___ notice in January that restricts （限制） primary and middle school students from carrying mobile phones ___53___ school. Those who still require ___54___ （ they ） phone for some reason must get their parents' and teachers' approval （批准） ___55___ must hand their phones over during class time.
The policy aims to improve students' focus on study and fight addiction （沉迷） to the internet and ___56___ （ game ） .
According to a 2020 report by the China Internet Network Information Center, China ___57___ （ have ） 175 million internet users under the age of 18 in 2019, with 74 percent having their own mobile devices.
This is ___58___ （ worry ） , as long-time use of smartphones harms children's eyesight, cervical vertebrae （颈椎） and even the brain, according to the World Health Organization.
Li Jisen, an 18-year-old from Beijing 101 Middle School, agrees with the new policy. "In general, there are more advantages than disadvantages," he said. Li believes ___59___ regulating （规范） phone use at school is the only way ___60___ （ put ） the focus back on study.
One of the world's most important and lovely animals is quickly disappearing，Can you guess which one it is？It（49） （have） the longest neck among all animals．Yes，it's the giraffe．
In 1985，there were between 152，000and 163，000giraffe，and they（50） （live） in the plains （平原） and forests of Africa．"The number of giraffes（51） （fall） by as much as 40percent since the 1980s，"says a new report on endangered wild animals and plants．
Why are there fewer and fewer giraffes？Because humans（52） （cut） down many trees to build more houses．And they are also killing the animals（53） （eat） their meat．A report from the International Union for Conversation of Nature（自然保护国际联盟） says，"Giraffes（54） （disappear） silently in the near future．And it is time that we do something for the giraffe before it is too late．"
People think giraffes are everywhere．Kids'books are full of giraffes，and there（55） （be） always giraffes in zoos．But giraffes are in great danger now．Humans should stop killing off certain endangered wild animals and try hard to help save them．
Mrs．Dean was to the policemen who had helped her kids arrive safely．（thank）
Mary and Tony are a pair of pet pigs．The two have recently got a special license so that their can take them for a walk．（own）
Mr．Smith，do you think teenagers must be kept away from the Internet？
No，I with this．The internet can help learn more about the world．（agree）
There are ways to stay healthy when seasons change．You should wash your hands ，exercise，eat and sleep well．（careful）