把42分解质因数42=1×2×3×7.
家乡有一句“紧走搭石慢过桥”的俗语。搭石,原本就是天然石块,踩上去难免会活动,走得快才容易保持平衡。人们走搭石不能抢路也不能突然止步。如果前面的人突然停住,后边的人没处落脚,就会掉进水里。每当上工、下工,一行人走搭石的进修,动作是那么协调有序!前面的抬起脚来,后面的紧跟上去,踏踏的声音,像轻快的音乐;清波漾漾,人影绰绰,给人画一般的美感。
易于—— 平稳——
假如—— 停脚——
协调间序:
人影绰绰:
①家乡的搭石很美。 ②我爱家乡的搭石。 ③过搭石的速度要快。
的山路 地瞄准敌人
的力气 地躺着尸体
的怒火 地完成任务
的喜悦 地打
Today is August 17 th. The sun is shining. The wind blows gently. It is very hot. The Lis are at the beach on holiday. Look, Peter is swimming in the sea. He swims very fast. His lather shouts to him: "Don't swim too far. The sea is very deep." Peter's sister Jenny doesn't like to swim in the sea. She is collecting shells on the beach. She has a lot of shells in her bag. There is a little boy beside Jenny. Fie is eating a banana. Then he puts the peel on the sand. "Hey, boy. Don't throw the rubbish on the sand. It's dirty." Jenny says. The boy's face turns red.