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1、Unit 7 Mind and memory* truths, facts, things which always happen原理，客观事实，规则例句：If you cool the water, it turns into ice.结构: if从句（一般现在时）+ 主句（一般现在时）* possible things now or in the future. 可能会发生的事引导词是if（如果）.如果主句是一般将来时，条件状语从句只能用一般现在时.例句：If you stay at home, Ill go.如果你呆在家里，我就走。If we dont get up early, we
2、wont catch the train.如果我们不早起，我们就赶不上火车。If you know the answer, write it down.结构:1)if从句（一般现在时）+ 主句（一般将来时）2)if从句（一般现在时）+ 主句（祈使句）*(拓展): a wish, not real things now or in the future愿望，现在或将来不会发生的事例句：If I had a billion dollars, I would buy the biggest boat.结构: if从句（一般过去时）+ 主句（一般过去时）(would.)【巩固】complete the
3、 sentences with the right verb forms.1. If you _(not study), you _(fail) the test.2. We _(die) if we _(not get) help soon!3. If you _(look) in the fridge, you _(find) some cold drinks.4. If there _(be) no oil in the engine, the car _(break) down.5. I _(lend) you my umbrella if you _(need) it.6. The
4、sea level _(rise) if the planet _(get) hotter.7. If you _(eat) your sandwiches now, you _(have) anything for lunch!8. You _(be) safe in an accident if you _(wear) your seatbelt.9. If he _(save) all his money, he _(be able to go) on holiday to Canada.10. I _(not come) with you if you _(not bring) John!- 1 -用心 爱心 专心
