片。

　　2．On_arriving at the hospital reception, we saw there were a lot of people there.

　　一到达医院的挂号处，我们就看到那儿有许多人。

　　3．After we got home, granny took the medicine just as the doctor had instructed.

　　我们回家后，奶奶就按医生的嘱咐吃了药。

　　4．They say that most drugs have side effects, and that not_all diseases can be cured by medicine.

　　 他们说大多数的药都有副作用，而且并不是所有的疾病都可以通过用药得以治愈。

　　5．Taking_exercise,_on the other hand, is always safe.

　　 另一方面，进行锻炼总是安全的。

　　 wear somebody out　使筋疲力尽；使厌烦

　　(教材P25)Today I feel worn out.

　　今天我感到很疲惫。

　　wear(sth.)out　　　　　 穿破；用坏

　　worn out (指人)疲惫不堪的，(指物)破烂不堪的

　　wear away (因重复使用)磨光，磨平

　　wear well 耐穿，耐磨，耐用

　　①The overall(工作服)wears well.

　　这件工作服耐穿。

　　②He wore out two pairs of shoes this summer.

　　今年夏天他穿坏了两双鞋。

③Most of the grass had already been worn away by the spectators.