高一英语课件Unit16LanguagePoints.pptVIP

Language Points 1. Why should students be careful smelling from bottles? 为什么学生在闻从瓶子里冒出来的气味时要小心？ be careful “Be careful of” refers to something that is outside your control and is a danger: Be careful of the traffic when you are out. “Be careful with” refers to something that is in your control and needs care: Be careful with that bag. It’s full of broken glass. 6. Having realized that I could use a kite to attract lightning, I decided to do a experiment. 我意识到可以用风筝来吸引闪电，于是决定做个实验。 having done 是现在分词的完成时，在句中做时间或原因状语， 表示的动作发生在谓语动词所表示的动作之前。如： Having noted down our names and addresses, the policeman dismissed us. 那警察把我们的名字和地址记下之后，就让我们走了。 Translate: ☆她在这个城市住了20年了，对城市很熟悉。 Having lived in the city for 20 years, she knows it quite well. Can you make a sentence using this pattern? ② “祁使句+and+陈述句”结构中，祁使句表示条件，陈述句表示结果。上述句子相当于If you tie the corners of the handkerchief to…, you will…。 另外，“祁使句+or+陈述句”结构表示：If (not)…, (you) will…。 例如： Work harder and you will find it not difficult to learn. Hurry up, or you will be late. Translate: 穿过这个大门，你会发现右边有家书店。 Go through the gate, and you’ll find a bookshop on your right. 10. This ribbon, which must not get wet, will protect you from the electricity. 这条丝带不能弄湿，它保护你不触电。 比较：protect…from… 保护…不受…（伤害） prevent…from… 防止/阻止…（做某事） Translate: 戴顶帽子，免得被太阳晒着。 Wear a hat to protect yourself from the sun. 他抬起胳膊以护着脸部不被打着。 He raised his arm to protect his face from / against the blow. 这场大雨阻止了他们外出。 The heavy rain prevented them from going out. 11. Take care that the string does not touch the wall or the door. 注意不要让线绳碰到墙壁或门。 take care （＋that…/ to do）注意；小心 take care of 照顾；爱护； Take care that you don’t spoil your clothes. =Take care not to spoil your clothes. 当心不要把衣服弄脏。 Take care not to smoke too much. She stayed at home to take care of the baby. Who takes care of the pet? Please take care of your health. Useful Expressions: ● the pros and cons