78% =____     180%=____500%=____  201%=____

3.5%=____      0.09%=____     0.2%=____      90.4%=____

我国现已执行“酒驾入刑”，其科学根据是，过量的酒精可以麻痹人的（　　）

判断一种物体是不是导体时，我们可用的工具有____。我们利用____把电送到人们需要的地方 ，利用____阻止电流到人们不需要的地方。

    Rick is a good man．He makes birthday cakes in a shop．His cakes are great and have very good prices，so many people buy his cakes．He makes friends with lots of his customers(顾客)．They all like him very much．One evening．he wants to go home，but many of his old customers come in．Rick smiles(微笑)to them，“I am sorry．It is late today．If you need cakes，please come tomorrow．”One of them takes out a nice cake and says to him，“You make so many great cakes for us．This birthday cake is for you．Happy birthday, Rick．”