(’14承德双滦区三模)I stayed up too late to watch the football last night. So I'm very ________ today.
A.hungry B.sleepy C.excited D.busy
(2014廊坊一模) Parents are always worried about children's ________ when they go out.
A.study B.work C.food D.safety
(’14天津)If you work harder, you'll have another ________ to play the violin at a concert.
A.question B.chance C.mistake D.problem
(’15原创)Don't make _______. It's time to have a meeting.
A.voice B.sound C.taste D.noise
(’15原创)I'm very tired today. So having a rest at home is my best ________.
A.opinion B.choice C.discussion D.answer
Many of us have developed the bad habit of staying up late. It is_______for our health.
The Sleep Research Center at the University of Surrey found a direct link_______the time of sleeping and genes （基因). Each cell （细胞) in our bodies _____some information in our DNA that acts as a kind of operating instruction. ______, each cell only reads a part of the instruction it needs. Professor DerkJan Dijk asked,“Can ______affect how a gene reads instructions?” He carried out an experiment and asked his ______to spend a week sleeping around seven hours to eight hours a night. And then the next week he______them to sleep six to seven hours a night.
Blood samples were taken each week to compare______genes were in blood cells. They were being used during the long and ______nights.
It is clear that changing the time of sleeping can______our genes, which influence our health. And we may fall______more easily when we sleep less. The important message is that getting sleep about eight hours a night can make an exciting _____to our health in just a few days. It is in this way that it_______our genes. So stop staying up late to listen to______broadcast, read one more chapter, have one more drink or do a little bit more work.______you don’t think it will make some differences, you will regret. Anyway, going to bed early and getting up early is a good habit.
1.A.real B.easy C.kind D.bad
2.A.between B.around C.in D.under
3.A.hurts B.makes C.carries D.goes
4.A.However B.Especially C.Luckily D.Quietly
5.A.study B.play C.sleep D.sing
6.A.workers B.volunteers C.doctors D.students
7.A.asked B.stopped C.prepared D.enjoyed
8.A.what B.which C.how D.why
9.A.small B.dark C.short D.brave
10.A.eat B.change C.bring D.sell
11.A.ill B.smart C.sad D.shy
12.A.difficulty B.difference C.importance D.invitation
13.A.looks after B.looks around C.looks for D.looks like
14.A.other B.another C.others D.the other
15.A.Until B.Unless C.If D.When
