Section B:长对话1

　　M: We'll start orange thing on your computerscreen.

　　W: Q8a semething about yesterday, It's aplastic Sweet tHat-blocks blue light. I have onethat I use to cover my phewe:ssrean too.

　　M: What do you mean by blue light? 

　　W: Q9.Blue light includes naturatlight, but italso includes light that isn't natural. Forexample,from computers, phones,

　　televisions, andother electronic devices.

　　M: So blue light is harmful and that's why youwant to block it.

　　W: It isn't that simple.@9,Blue light isn'tnecessarily bad for us. In fact, we need bluelight during the day to be herhgit[toomuch blue light, especially from electronicdevices can harm our health by weakeningour vision and making it harder for us to fallasleep. And poor sleep can cause all sorts ofhealth problems.

　　M: Q10.I'm not so sure that sleep is nearly asimportant as people always say it is.I haven'tslept enough in months, because I have toomuch work to do. And I feel fine. And it's thesame for most of my friends. Poor sleepmight be a problem for older people, butsurely young people can handle late nights.W:Well, Q11.the research I'v Pshows

　　that sleep isprobably even more important

　　than wei thought and that not having enoughsleep can contribute to serious health

　　probled li ppesity and heart disease. Andall the artificiat blue light from electronicdevices means we have to try harder to sleepwell.

　　M: Maybe you're right. I'm on my computervery late most nights and that's probablywhy I don't sleep enough.沪江

　　Question 8.What did the woman do toher computer?

　　Question 9. What does the woman sayabout blue light?

　　Question 10. Why does the man say hehasn't slept enough for months?Question 11. What has the womanlearned from the research she has read?