accidents are todays most frequent killers so far as children are concerned. and accidents cripple a great many children that are not killed. accidents occur to children in all sorts of places at home, on the street, at school, on public playgrounds, at places to swim, and on camping trips. there are now many more chances for accidents than there used to be.
automobiles, power tools, electric wiring, and easy ways of starting fire have brought new dangers. most accidents are caused by carelessness. a great deal of effort has been done to make work in mills and factories safer. safety is everyones business.
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（9）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（10）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（5）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（7）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（7）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（13）
鲁教版英语八下《Unit 7 I’ll help clean up the city parks》word教案（5）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（11）
鲁教版英语八下《Unit 7 I’ll help clean up the city parks》word教案（3）
鲁教版英语八下《Unit 8 Have you packed yet》word教案（2）
鲁教版英语八下《Unit 3 I used to be afraid of the dark》word教案（5）
鲁教版英语八下《Unit 3 I used to be afraid of the dark》word教案（6）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（4）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（12）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（6）
鲁教版英语八下《Unit 7 I’ll help clean up the city parks》word教案（8）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（11）
鲁教版英语八下《Unit 8 Have you packed yet》word教案（3）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（10）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（8）
鲁教版英语八下《Unit 1 Have you ever been to an amusement park》word教案（6）
鲁教版英语八下《Unit 8 Have you packed yet》word教案（1）
鲁教版英语八下《Unit 7 I’ll help clean up the city parks》word教案（7）
鲁教版英语八下《Unit 4 Teenagers should be allowed to choose their own clothes》word教案（11）
鲁教版英语八下《Unit 3 I used to be afraid of the dark》word教案（3）
鲁教版英语八下《Unit 4 Teenagers should be allowed to choose their own clothes》word教案（10）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（4）
鲁教版英语八下《Unit 6 Where would you like to visit》word学案
鲁教版英语八下《Unit 5 I like music that I can dance to》word教案（9）
鲁教版英语八下《Unit 6 Where would you like to visit》word教案（1）