中考英语语法综合复习－非谓语动词(共44张PPT)

动词不定式 动词－ing形式 动词过去分词形式 动词不定式构成 to＋动词原形 My work is to teach English every day. To save money now seems impossible. My father asked me not to read books in bed. 动词不定式具有动词的特点，即可以有自己的宾语和状语，但它没有人称与数的变化，在句中也不能作谓语，动词不定式和自己的宾语或状语构成不定式短语。 (1)作主语 It＋be＋形容词＋(for sb.)＋动词不定式 It’s important (for us) to protect the environment. 注：当在kind，good，nice，clever等表示人的品质的形容词后，不用for而用of。 It’s very kind of you to help me． 动词不定式用法 动词不定式作主语时，常用it作形式主语，而将真正的主语放在句末， (2)作表语 多数情况下，不定式作表语可转换成作主语。 My work is to clean the room every day. To be kind to the enemy is to be cruel to the people. My chief purpose is to point out the difficulties of the matter. (3)作宾语 ①有类词表示命令、打算或希望，如would like，want，wish，hope，decide，plan，expect等后加动词不定式作宾语。 Would you like to see a film this evening? ②find，think后跟不定式作宾语时，常用it代替，而将真正的宾语放在句末。 I find it easy to read English every day． 一些谓语动词后可以用不定式作宾语，常见的这 (4)宾语补足语 动词不定式作宾补时，与宾语有逻辑上的主谓关系。 Lucy asked him to turn down the radio． 注：一感(feel)，二听(hear, listen to), 三让(let, make, have), 四看(look at, see,