you，well，easy，suggestion，unless，improve，study，about，when，normal，conversation，remind
The human brain is very small and light （only 2% of our total body weight），but it needs about 20% of the oxygen （氧氣） that our body takes in．We can't think well if our brain isn't getting enough oxygen，so always make sure there is enough oxygen in the air （1）

when

when

you need to learn or remember something!
No one can remember everything，but everyone can learn how to （2）

improve

improve

their memory．Here are some （3）

suggestions

suggestions

-none of them can make your memory 100% perfect，but all of them are helpful：
●When you want to remember something，tell a friend （4）

about

about

it．This way the new information becomes more memorable．Later on，think about the （5）

conversation

conversation

with your friend．It will （6）

remind

remind

you of the information you wanted to remember．
●Don't train your brain too hard．When you've remembered a list of new words，stop （7）

studying

studying

．It's better to study a lot of material for a long time!But remember：you do have to practice the new words regularly （定期地）!
●Our memory works （8）

well

well

when we are asleep．If you want to remember something，go to sleep right after learning it．
●If you have to remember something big，break it down into smaller parts．It's （9）

easier/easy

easier/easy

to remember 198756430387 if you break it down into four smaller parts：198-756-430-387．
●If you want to remember a piece of information，and you can't，don't get angry．Relax and tell （10）

yourself

yourself

，"If it's important，I will remember it later．"