必會(huì)單詞 Able adj. 能夠 yell v.呼喊 Look around 環(huán)顧四周 float v. n. 漂??；漂浮物 Knot n. 扣子；打結(jié) pants n.長(zhǎng)褲 Squeeze v.擠壓 waist n.腰 Throw v. 扔 plastic bottle n.塑料瓶 Flow v.浮 wrap v. 包裹 重點(diǎn)句子 1.What do you do if you fall in the water? 2.Then swim to shore if you are able. 3.What if you can’t swim to shore? 4.Then float on your back. 5.Look around for something to hold on to. 6.Take off your pants. 7.Tie a knot at the end of each leg. 8.Wave them above the water to fill them with air.