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课件网) Unit 2 I’ll help to clean up the city parks. R·八年级下册 Section A Grammar Focus-4c 不定式 情态动词could表示建议的功能 学习动词短语 作宾语 作宾语补足语 作状语 动词+介词 动词+副词 动词+副词+介词 Summary Grammar Focus I’d like to help homeless people. She decided to try out for a volunteer after-school reading program. You could ask hospitals to let you visit the kids and cheer them up. Mario believes it can help him to get his future dream job. She volunteers there once a week to help kids learn to read. I’m making some signs to put up around the school. 圈出带有动词不定式to do结构. would like to do sth 想要干某事 decide to do sth决定做某事 ask sb to do sth要求某人干某事 let sb do sth让某人干某事 help sb (to) do sth帮助某人干某事 to可省可不省 To help修饰动词volunteer,表目的，作目的状语 To put修饰动词make,表目的，作目的状语 动词不定式 动词不定式是一种非谓语动词形式，在句中不能作谓语，没有人称和数的变化。 基本形式：_____，这里的to没有词义, 只是为了构成不定式的_____, 有时to可以省略； 否定形式：_____。 动词不定式具有名词、形容词和副词的特征，因此动词不定式除了_____以外，其他成分都可以作，因此，在句中可以作_____、_____、_____、_____、_____和_____。 to＋动词原形 not to＋动词原形 不能作谓语 主语 表语 宾语 定语 状语 补足语 一种符号 She told me not to watch TV. 2 谓语 “做….” 或“怎么样” 3 宾语 动作行为”做”的对象 主语 “什么人”或“什么事” 1 5 定语用来修饰名词或代词 …的 6 状语修饰动词，形容词或副词 …地 7 宾补用来补充说明宾语的情况 表语“是什么”,”怎么样” 4 动词不定式作宾语 常接动词不定式作宾语的动词有： 学习需要努力 (learn, need, try) 想要选择拒绝 (want, choose, refuse) 决定开始计划(decide, begin/start, plan) 希望记得别忘记 (hope/wish/expect, remember, forget) I hope to work outside. You could help to clean up the city parks. We need to come up with a plan. Mario wants to be an animal doctor. 主语+谓语动词+ to do 另一种是“疑问词+动词不定式”结构作动词或介词的宾语。 例：他教我如何使用手机。 He taught me how to use mobile phone. 常接动词不定式作宾补的动词有： ask, tell, want, would like, teach, wish, help, invite 等可以构成 “...sb. (not) to do sth.”结构的动词。 It can help him to get his future dream job. Sam asked me to help him. The teacher always tells us not to swim in the river. 动词不定式作宾语补足语 主语+谓语动词+sb.+ to do help后的不定式可省略to，也可以带上to。 例：我哥哥经常帮助我做家务。 My brother often helps me (to) do the housework. 在feel,hear, listen to,see, watch, notice, look at 等感官动词或使役动词let, make, have后面作宾语补足语的动词, 其不定式一般要省略动词不定式符号“to”。 let / make / have + sb. + do sth. see / watch / hear / notice / feel + sb. + do sth. 一感(feel)二听(listen to, hear) 三让(let, make, have )四看(look at, see, watch, notice)，半帮助(help) The girl could visit the sick kids in the hospital to cheer them up. She still works there once a week to help kids learn to read. 目的状语 主语+谓语动词+(宾语)+(状语)+to do You could give out food at th ... ...
