A lecturer was giving a lecture to his students on stress management. He raised a glass of water and asked the audience, ‘How heavy do you think this glass of water is?’
All of the students tried to answer the question, and their answers ranged from 20g to 5OOg.
‘It does not matter on the absolute weight. It depends on how long you hold it. If I hold it for a minute, it is OK. If I hold it for an hour,l will have an ache in my right arm. If I hold it for a day, you will have to call an ambulance. It is exactly the same weight, but the longer I hold it, the heavier it becomes.’
‘If we carry our burdens all the time, sooner or later, we will not be able to carry on, because the burden is becoming increasingly heavier.’
‘What you have to do is to put the glass down, rest for a while before holding it again.’
We have to put down the burden periodically（定期地；周期性地），so that we can be refreshed and are able to carry on. Otherwise I think that we will break down on the half way and can’t realize our dream as we planned.All of us should really keep this in mind.
Before you return home from work tonight, put the burden of work down. Don’t carry it back home. You can pick it up tomorrow.
Whatever burden you are having now on your shoulders, let it down for a moment if you can. If you do like this, you can greatly improve your work efficiency（效率） and life quality.
Life is short; let’s enjoy it to the fullest.
根据短文内容完成表格，一空一词。

Title	How to relax ourselves
Theme	Put down the burden to get _______.
The lecturer’s question	How heavy is the glass of water? The question was raised on _______  stress.
The students’ answer	The students gave answers from 20g to 500g．
The lecturer’s explanations	•The weight of the glass of water  _______ on the time of holding it. •The longer you hold it, the heavier it will become. •Hold it for a minute, and you will feel _______. •If you hold it for an hour, your right arm will ache. •An  ambulance  will  have  to  be _______ if you hold it for a day. •If we carry the burden too long, we will be _______ to carry on.
The methods to relax	•To relax, you must put the glass down. •After a ______ , hold the glass up again. •Put down the burden _______ to get refreshed to carry on.
The writer’s _______	•Put down the burden of work before you go home and pick it up tomorrow. •Let down the burden on your  _______to rest for a while. •Enjoy your life.