Q1：Do you prefer to study in the morning or in the evening?
If you choose to be a morning person，you could say——
active, acute, efficient, energetic
Night sleep refreshes me.
A版本1：For me, the best time to study is the fresh morning, which I feel suitable for concentration.In the morning, my mind is usually relaxed and more carefree. I study with an energized and open mind. The sunlight is also pretty great.
Early in the morning my body is fully relaxed and I am totally fresh. All the tensions in my mind were overrun by a good sleep and my mind is totally free from all worries. Fresh air of the morning makes me feel comfortable and I feel extra power in my body.
If you choose to be an evening person, you could say——
owl/night owl, burn the midnight oil
A版本2:I prefer studying in the evening,cuz it's the quietest period and no one will bother me.The atmosphere is very calm with minimal disturbance.
I prefer night studies as my brain is more active during nights. Waking up early in the morning, however, is a difficult task for me.
At night, my day has wound down. I use the usually quieter environment to my advantage. The nights have a generally better atmosphere for my study.
Q2：Why do some people find it difficult to focus in the morning?
burn the mid-night oil
A2：Everyone has a daily energy cycle.For some people the peak comes during the morning. For others it comes in the afternoon or evening. Probably they'd better save tasks requiring more energy for their sharper hours.
Q3：What do you do to improve your efficiency?
enough sleep and rest
create good study habits
establish a study zone
make study time a part of my daily routine
find a study partner
take short breaks
minimize computer use and the Internet
Eight hours' sleep must be guaranteed.
方案1：Whenever I read, my mind keeps cool and alert. If I feel sleepy or tired, I simply keep books aside and sleep. Because it is useless to read in such cases as nothing goes into brain.
方案2：When I find myself struggling with staying focused or about to doze off, I have a break for physical activity or a cold shower. They are extremely refreshing for both the body and mind.
方案3：I usually avoid eating a heavy meal before studying. A heavy meal would make me sleepy so that it becomes more difficult to study. For me, small and frequent meals are good alternatives.
方案4：Since I decided to study in the morning/evening, I've established a study routine. Finally, I believe my body has got used to it and I can get the best study performance possible. So, all that I do is pick one period and stick with it.