练习材料：
L46-1: Do it yourself
Even men who can hardly drive a nail in straight are supposed to be born electricians, carpenters, plumbers and mechanics. When lights fuse, furniture gets rickety, pipes get clogged, or vacuum cleaners fail to operate, some woman assume that their husbands will somehow put things right. The worst thing about the do-it-yourself game is that sometimes even men live under the delusion that they can do anything, even when they have repeatedly been proved wrong. It is a question of pride as much as anything else.
Last spring my wife suggested that I call in a man to look at our lawn mower. It had broken down the previous summer, and though I promised to repair it, I had never got round to it. I would not hear of the suggestion and said that I would fix it myself. One Saturday afternoon, I hauled the machine into the garden and had a close look at it. As far as I could see, it needed only a minor adjustment: a turn of a screw here, a little tightening up there, a drop of oil and it would be as good as new.
任务配置：L0+L4
知识笔记：
nail n.钉子
electrician n.电工，电气技师
carpenter n.木匠
plumber n.水管工
mechanic n.技工
fuse v.(使)〔因保险丝熔断〕中断工作
rickety adj.摇摇晃晃的
clog v.塞住
vacuum n.真空 a vacuum cleaner 真空吸尘器
somehow adv.不知为何
delusion n.错觉
be under delusion that 有......错觉
lawn n.草坪
mower n.割草机 a machine used for cutting grass
haul v.用力拖拉
minor adj.较小的
screw n.螺丝
tighten v.使变紧
练习感悟：
Never leave the things until tomorrow you can do today.
