Unit 4 Astronomy : the science of the stars
I.Words
1..harmful adj. 有害的 harm n& v 损害; 伤害
搭配: do harm to be harmful to 对、、、有害
Fruit juice can be harmful to children’s teeth , so mum said to her child :“Don’t drink too much juice because it can do harm to your teeth.”
果汁有可能对 孩子 的 牙齿有害,因此妈妈对孩子说:“不要喝太多的果汁,因为它对你的牙齿有害。
2.puzzle n. 迷;难题 vt. & vi (使)迷惑;(使)为难
puzzling 令人迷惑的 puzzled 感到困惑的
There was a puzzled look on her face because a puzzling problem puzzled the little girl .她脸上有迷惑不解的神情,因为有道令人费解的问题使这个小女孩困惑。