一、副词用法(表示方向)
1. The cat sat down on the mat.(猫坐在垫子上。)
2. The ball rolled down the hill.(球滚下山坡。)
3. The leaves fell down in autumn.(秋天树叶落下。)
二、形容词/副词短语
1. The sky was a deep blue, and the clouds looked down like cotton.(天空是深蓝色,云朵像棉花。)
2. The movie was very exciting, and I watched it down to the end.(电影非常精彩,我看完了。)
3. The weather was very hot, and we had to stay indoors all day.(天气很热,我们整天待在室内。)
三、介词短语
1. The book is on the table, and the pencil is down the drawer.(书在桌子上,铅笔在抽屉下面。)
2. The cat is hiding down the alley.(猫藏在小巷里。)
3. The stairs are down the left-hand corner.(楼梯在左下角。)
四、动词用法(表示"击倒/使下降")
1. The boxer was knocked down in the ring.(拳击手在擂台被击倒。)
2. The river flows down to the sea.(河流入海。)
3. The wind blew down the window.(风把窗户吹开了。)
建议结合具体语境选择造句类型,例如描述自然现象用副词短语,描写动作过程用动词用法等。