This is a letter by Selena Bieber to the students in he school.
（1）What problem is Selena Bieber trying to fix？ BB
A．High school lessons are too difficult.
B．Classes start too early in the morning.
C．Too many students are late for school.
D．Lunch break is too short for taking a rest
（2）What can we learn from the letter？ DD
A．Too much melatonin can hurt teenagers' brains.
B．The brain stops making melatonin after 11 p.m.
C．Sleeping longer helps the body to make more melatonin.
D．We can sleep better when the brain's making melatonin.
（3）Below is some information from another study.Do the ideas in Selena's letter agree with the information？ DD
We studied 48 high school students and found that the students who went to bed earlier did better on their school tests.This is not only true for those who slept nine hours，but also true for those who slept less.And some of them agreed that they learned better in early' morning classes.
A．Yes，because Selena says it is better to sleep from 11 p.m.jye.ai 8 a.m.
B．Yes，because Selena says getting up early is not helpful for learning.
C．No，because Selena says students are supposed to get to school by 7：30 a.m.
D．No，because Selena says teenagers' brains don't work well in early morning classes.
【答案】B；D；D
【解答】
【點評】
聲明：本試題解析著作權屬菁優(yōu)網(wǎng)所有，未經(jīng)書面同意，不得復制發(fā)布。
發(fā)布：2024/4/20 14:35:0組卷：6引用：1難度：0.6
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