自主学习：
I.Check the homework for the holiday.
II.New words:
1.hearing: sense of hearing
He’s getting old and his hearing isn’t very good.
2.sign: noun:符号,标志,迹象
His inability to handle the situation is a sign of weakness.他无法处理事情是虚弱的表现。
a road sign路标；a traffic sign交通标志；a shop sign商店摊牌
Don’t cross the road yet---until I give you a sign.先别过马路---等到我给你信号。
She made / gave a sign to her husband to stop talking.她做了个手势让她丈夫停止讲话。
Those black clouds are a sure sign of rain.那些乌云肯定是下雨的征兆。
verb:
sign a letter; sign a check, an agreement
He signed the waiter to bring him another drink.他示意侍者给分再来一饮料。
3.confuse: vt. 使迷惑,使糊涂
The road signs confused the driver.路标使驾驶员迷惑。
We often confused him with his brother.我们经常把他和他哥哥弄混。
There was a confused look on his face when he met with the confusing problem.
