人教版（2019）选择性必修第三册：Unit 2 Healthy Lifestyle 语法精讲课件（35张PPT）

(共35张PPT)
语法精讲
不定式
不定式的时态和语态
定
式
主动
被动
to write
to be written
进完
行
to be writing
to have written
to have been written
成进行
to have been writing
Sentences in the reading passage:
1.However,during this period,it can be easy for some of them to form
主
bad habits.
语
2.To prevent harmful habits like these from dominating a teenager's life
is essential.
3.To change bad habits is never easy,even with many attempts.
4.After all,it is not easy to break bad habits.
3.To facilitate a positive change in our bad habits,we must first examine
的
our bad habit cycles and then try to adapt them.
状
6.To reach the goal of change,a person must show some discipline and
语
repeatedly take many small steps.
Analyze the sentence.
1 To change bad habits is never easy.
主语
2 It took the surgeon three hours to finish my mother's lung
surgery
主语
3 To join
目的状语
Liberation Army,it is required for men to
shave off their beards.
主语
4 It was not polite to disturb your neighbours with loud music last
night.
主语