把下列各数填入相应的大括号内：

11，﹣$\frac{2}{3}$，6.5，﹣8，2$\frac{1}{2}$，0，1，﹣1，﹣3.14

（1）正数集合{　　　　…}，

（2）负数集合{　　　　…}，

（3）整数集合{　　　　…}，

（4）正整数集合{　　　…}，

（5）负整数集合{　　　…}，

（6）正分数集合{　　　…}，

（7）负分数集合{　　　…}，

（8）有理数集合{　　　…}．

用方框中所给单词的适当形式填空，每词限用一次。            

(1) Take some rest after lunch and you won't feel ____ in the afternoon. .

(2)When the child saw her parents waiting at the school gate, she ran ____  them.
(3)Don't ____  about your exams, everything will be fine.
(4)To protect____ , scientists suggest the people stop fishing in some parts of the ocean.
(5)My host family is really nice .They try____  best to make me feel at home .