人教版高中英人教版高中英语语Book4 Unit 2华华南南师师范大学范大学制作人：梁惠芳制作人：梁惠芳Losing him was blue like Id never knownMissing him was dark grey all aloneForgetting him was like trying to know somebody youve never metBut loving him was redLoving him was redV-ing form used as subject一.The usage of V-ing form used as subject动名词做主语往往表示经常性、习惯性的动作或状态。Watching news on TV has become a routine for me.(经常性、习惯性的动作)Talking is easier than doing.(状态）一.动名词做主语的3种句型(1)动名词直接置于句首。Talking is easier than doing.(2)Ving形式作主语时常后置,用it作形式主语It is a waste of time doing sth(3)There be 结构中作主语：A. There is +no doingB. There is no point doing(1)动名词直接置于句首。Watching news on TV has become a routine for me.Seeing is believing.(2)V-ing形式作主语时常后置,用it作形式主语。Playing video games is a waste of time.It is a waste of time形式主语真正主语It is a waste of time playing video games.playing video games.常见句式:It is no good/no use/ useless doing sth 做、没有用的It is a waste of time doing sth做、是浪费时间的(3)There be 结构中作主语：A. There is +no doing表示不可能做某事There is no knowing the future =we cant know the future.B.There is no point doing 做、没有意义B. There is no point doing做、没有意义Theres no point having wishes if you dont at least try to do them.如果你都不尝试实现梦想，那么拥有梦想又有什么意思呢。Talking is easier than doing.Losing him was blue like Id never known.Missing him was dark grey all alone.动名词作主语时，单个V-ing做主语，谓语动词用单数。Collecting stamps and running are his hobby.两个或两个以上表达不同意义的V-ing作主语，谓语动词用复数。主谓一致：Seeing believing.Watching TV and reading books become a routine for me.isare has have 一.动名词做主语的用法(1)动名词直接置于句首。Talking is easier than doing.(2)Ving形式作主语时常后置,用it作形式主语It is a waste of time doing sth(3)There be 结构中作主语：A. There is +no doingB. There is no point doing单个V-ing做主语，谓语动词用单数。Since Tom went to high school, _(watch) TV has become a routine for him. His mother always said “its waste of time_(spend) time in front of TV.” However, Tom always answers “I can keep a balance between studying and watching TV.” As you know, talking _(be) easier than doing. Later, Tom doesnt do well in the final exam and he is so sad. Toms mother knows that there is no point_(scold) him now. so she comforts him and said “ it is no use _(cry) over spilt milk. There is no _(tell) what you can do, just try your best.16教育类ASince Tom went to high school, _(watch) TV has become a routine for him. His mother always said “its waste of time_(spend) time in front of TV.” However, Tom always answers “I can keep a balance between studying and watching TV.” As you know, talking _(be) easier than doing. Later, Tom doesnt do well in the final exam and he is so sad. Toms mother knows that there is no point_(scold) him now. so she comforts him and said “ it is no use _(cry) over spilt milk. There is no _(tell) what you can do, just try your best.watchingisscoldingcryingtellingspending17教育类A