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3.关注固定句型中谓语动词的变化情况。祈使句中的谓语动词常常被误用为非谓语动词。 4.助动词在帮助构成动词的时态、语态以及句式变化方面的作用不应小觑。 Ⅰ Ⅱ Ⅰ.用合适的动词形式填空 M:I’m tired and must rest here. W:Why?We just (walk) 5 km,and it is only half of the journey. M:I have never walked such a long distance for several years. W:How often do you (take) exercise? M:I can’t remember when the last time I (take) exercise is.And I always (hurry) on with my bus in the morning.I have no time for doing it. W:Oh,you should take exercise regularly and should have a well-balanced diet.I know you always go to bed after midnight,even later.This is not a good habit. M:You (seem) my mother at this moment. walked take took hurry seem Ⅰ Ⅱ W:No,I talk to you because I know that having good health (be) an important condition that you can compete with others in your work. M:OK,let’s go on.I (not want) to sit here and listen to your long speech. W:Hey,come on.I just can’t stand your lifestyle. (take) exercise for an hour every day is good for your health. is don’t want | 
