if条件状语从句好用.ppt

Language;If you cool water, it turns into ice. ① ② ;1. If you heat metal, it melts. 如果把金属加热，它就会融化。 2.Water turns into ice if you cool it. 如果你冷却水，它就会变成冰。 ;If you drop a glass, it breaks.;Actions with definite results;;;-- b -- d -- g -- a -- h -- c -- f -- e;1. If you ___________________water. 2. A balloon _____________________ it. 3. If you ___________________water. 4. Metal _____________________it. 5. Wood _________________water. 6. A glass_________________ it.;Actions with possible results;;I ________(stay) at home if it _______ (rain) tomorrow. If he ____________ (not come), I _____________?(go) swimming alone. ;If you get up late, you will be late for school.;If the telephone rings, I will answer it. ;;hard-working;go fishing .;P105 B;一、判断正误，如果有误，请更正 1. If you will do more exercise this summer, you will be very fit. 2. The candle burns , if you light it.;3. I will build many schools for the poor children if I win a billion dollars. 4. If you freeze water, it will turn into ice. 5. My uncle visits the museum if he will have time.;If 的两个意思:; Betty will visit the History Museum if it ____________ (rain) tomorrow. Ben wants to know if it___________ (be) fine tomorrow.;Exercises : ;4. Will you come and stay with us for a while if you ______ (finish) doing your homework? Wang doesn’t know if there _________ (be) an English evening next week. Mike asked me if we ___________ (ask) any questions the next class. We are going for picnic tomorrow. I’ll call Wendy to make sure________. A why to start B when to start C what to start D which to start ;8. --- Would you please tell me____ next? --- Think it over. You’ll find a good way. A when to do B how to do C what to do D where to do 9. I don’t know if my uncle _____. If he ___, I will be very happy. A comes; will come B will come; will come C comes; comes D will come; comes 10. Either you or I ___