The phrase,“The early bird catches the worm” may be true.It 76____ people who wake up early get more done than people who don’t. 77____ saying is from Benjamin Franklin.He said：“Early to bed,early to rise makes a man healthy,wealthy,and wise.”Scientists have found that people who go to bed before 11 pm 78____ do better in life than people who sleep around 2:30 am.Their research showed that people who slept and rose early had a 79____ over people who slept and woke up late.There were differences 80____ the brain function of early birds and night owls(夜猫子).The scientists 81____ thirty-eight people in their research.The people answered questionnaires about their sleeping 82____ and when they felt tired during the day.They were then put into an early bird or night owl group 83____ on their answers.All of the people had MRI scans on their brain and did 84____ tests throughout the day.The researchers said there were big differences between the two groups.The early birds said they felt less sleepy and were able to do the tests more quickly than the night owls.The researchers believe that the night owls have to get up earlier to go to work,so they’re 85____ having to fight against their preferences and natural rhythms.
80.____
A.on B.in C.at D.for正确答案B
