Unit3Ahealthylifegrammer课件(人教版选修6).ppt

Unit3Ahealthylifegrammer课件(人教版选修6).ppt

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Grammar;Discovering useful structures;a. It’s a beautiful day here--- b. It’s amazing that at my age I am still fit enough to cycle 20 kilometers in an afternoon. c. It’s my birthday in two weeks time… d. Your mother tells me that you have started smoking and that you are finding it difficult to give up.;e. Believe me, I know how easy it is to begin smoking and how hard it is to stop. f. This means that after a while your body becomes accustomed to having nicotine in it and … g. As you know, if you do the same thing over and over again, you begin to do it automatically. h. I think I was addicted in all three ways, so it was difficult to give up.;I didn’t know it could do terrible damage to your heart and lungs or that I was more difficult for smoking couples to become pregnant. j. When I was taken off the school football team because I was too slow, I knew it was time to quit smoking. k. It might help you to stop. ;一、it作代词, 指代上下文中提到过的人或物;;二、It作非人称代词,表示天气, 时间,地点, 温度, 距离等;三、it作形式主语, 而把句子的真正主语移到后面去.;句型: It be+ adj./ n. to do sth. It takes / took sb. some time to do sth.;2.It stands for -ing form (动名词);It’s amazing that at my age I am still fit enough to cycle 20 kilometers in an afternoon.;3) It seems (appears, turns out, happens, proves ) that … 4) It doesn’t matter ….;四、it作形式宾语 当复合宾语中的宾语是不定式、动名词、宾语从句时, 往往把宾语放在它的补足语后面, 而用 it 作形式宾语, 放在宾语补足语之前。;You must make it clear that you will never give up .;五、 用于某些习语 make it 及时赶到;成功;办成 e.g. You can make it if you hurry. 如果你赶快还可以及时赶到。 You needn’t worry; he will make it.你不必担心, 他会办到的。;catch it 被责骂; 受处罚 e.g. If I come home late,I’ll catch it from my mother. 如果我回家晚了, 我妈妈会骂我。 You’ll catch it because of your carelessness. 你会因为你的不小心受处罚的。

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