第二节  语法填空(共10小题:每小题1.5分,满分15分)
阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空,并将答案填写在答题卷标号为31-40的相应位置上。
Most of us have been in both positions: the giver and the receiver. And while a certain amount of joy can be picked from being a receiver,    31   enormous amount of joy comes   ____32    giving.
I have been offered help and offered payment    33    certain things I do, and I almost always turn down such offers. I know I shouldn't, but it's a pride thing. I do expect payment when I do a regular job,   34   I just wish to help when I do something for someone. However when we turn down offers for help, we do not realize it. But it actually hurts those    35    offer to help, and we are denying those people the chance   36    (feel) the joy of giving. Most people on this earth will not offer genuine help if they cannot do so. And if they do, they are motivated only by the desire to share    37    they have with others.
The next time you    38    (offer) help, no matter what that offer may be, do not turn   ___39   down! Swallow your pride and allow that helpful person the   40   (please) of giving! And when you can, pay it forward and bless back!