A student newspaper reports that most students go to sleep at 1:30 am. Even if that’s an overstatement (夸张), it’s close to the truth. Scientists say teens should sleep nine hours each night. But that’s hard. Some are even “pulling all-nighters” (开夜车). These students must hand in their homework the next day but they haven’t done it. In the morning they don’t look healthy and you can tell who’s been doing it. One of my classmates did a survey on the topic. She found that most kids pull all-nighters to finish homework, but some do it for other reasons, such as playing computer games!
Maybe our lack(缺乏) of sleep is because of laziness — I think I’m a rather lazy student — or maybe it’s because we have too much to do in American high schools. I usually go to bed around midnight. If I stayed up past 1:30 am, I wouldn’t get any work done. I’d be falling asleep at my computer. My classes begin at 7:30 am. I’m partly awake in my first class. By the second, I’m a little sleepy. By my third class, I’m sleepy. By midday I’m finally fully awake. But by 3:00 pm, I’m slowing down again. Yet I get more sleep than usual students.
Most American high schools seem to have a similar(相似的) problem with sleepy students. High school classes start at 7:30 am, so students have to get up one and a half hours before that to get ready and catch the bus. It’s believed that lack of sleep can be bad for both grades and health. Some schools are paying attention. Classes in those schools start at 8:30 am.
【小题1】What does the underlined sentence “it’s close to the truth” mean?

A Manchester teenager has received a phone bill（账单） for over ? 420 after sending 3,800 text messages in just one month．

Tony Russell has had his new mobile phone for only one month, but now his father, Lionel, has taken it away．

“He's been asking me for a mobile for years because all his friends have got one,” explained Lionel．”I finally bought one for his birthday because he's been doing so well at school, but he and his friends are crazy about sending text messages．They do it all the time．They even text each other from different sides of the school playground．

Tony said, “I thought texting was much cheaper than phoning, so I've been texting my friends all day long and even into the early hours of the morning．I've been going to bed at 2:00 most nights．Sometimes my hand hurt because I pressed the buttons so much, but I was having such good fun that I couldn't stop!”

His father said, “I have forgiven him, but I am angry with the phone company as they are encouraging this crazy behavior．” He has made his son promise to pay back the money, so Tony has been working on Saturdays．He has found a job in a shoe shop．“I think it will take me about half a year to clear this debt（债务）,” he said．

76．What does the passage mainly talk about?

　 A．A father who worries about his son．　 B．A teenager who sent too many text messages．

C．Young students' problems at school． 　　　 D．A young man and his friends．

77．Tony got the mobile phone because _____

A．he's been asking his mother for years　　 B．he wanted to change a better one

C．he needs a birthday present　　　　　　 D．he's been doing well at school

78．The underlined（加下划线的） word “text” probably means______

A．make a phone to　　　　　　 　　　　　 　B．send messages to

C．write a letter to　　　　 　　　　　　　　　 　D．read textbooks to

79．When he sent text messages, Tony ______．

A．made friends at school　　　 　　　　　 　B．hurt himself

C．felt quite happy　　　　　 　　　　　　　 　D．got help from his friends

80．How much does Tony get for his job every month?

A．About ?70．　 　　 B．About ?90．　 　 C．About ? 35． 　　 D．About ? 630