动词不定式 ·1,动词不定萝的袋软构做酱 雾歌岁 ·3.动词姜各购或份
动词不定式 • 1.动词不定式的一般结构 • 2.动词不定式的分类 • 3.动词不定式作各种句子成分 ．
动词不定式的一般结构 ·To+动词原形 ·注意：o有时可省去，动词不定式在具体 应用时，用不用o,取决于其在句子中充 当的角色
动词不定式的一般结构 • To+动词原形 • 注意：to有时可省去，动词不定式在具体 应用时，用不用to，取决于其在句子中充 当的角色
动词不定式的分类 ·1.带to的不定式结构 ·动词有：Want,would like,ask,tell,hope,learn,try,decide, forget,remember,like,love,stop,go,come. 注意：其否定形式是在不定前直接加not,即 not to do sth e.g Jim told me not to write soon. ·2.不带to的不定式结构 ·(1)在固定词组had better后。 ·(2)在let,make,hear等使役动词或感官动词后，作 宾补。 ·(3)在why not句行后
动词不定式的分类 • １.带to的不定式结构 • 动词有：Want,would like,ask,tell,hope,learn,try,decide, forget,remember,like,love,stop,go,come等。 注意：其否定形式是在不定前直接加not,即 not to do sth • e.g Jim told me not to write soon. • 2.不带to的不定式结构 • (1) 在固定词组had better后。 • (2) 在let,make,hear等使役动词或感官动词后，作 宾补。 • (3) 在why not句行后
动词不定式作句子成分 ·1动词不定式作主语 ·2.动词不定式作定语 ·3.动词不定式作宾语 ·4.动词不定式宾补 ·5.动词不定式状语 总之，动词不定式除不能作谓语外，可 作任何其他句子成分
动词不定式作句子成分 • １.动词不定式作主语 • ２.动词不定式作定语 • ３.动词不定式作宾语 • ４.动词不定式宾补 • ５.动词不定式状语 • 总之，动词不定式除不能作谓语外，可 作任何其他句子成分
动词不定式作主语 ·动词不定式作主语，现代英语倾向采用t作形式 主语，把动词不定式结构后置的句式。句型： ·1Itis+形容词+to do sth It is best to come to China in spring ·2如强调动作执行者，则用for sb to do sth It's easy for us to make mistakes ·3.Itis+形容词+of sb to do sth ·如指人的一种特性，如clever,good,nice,kind等， 动词不定式前用ofsb,而不用for sb, It's very kind of you to help me ·4 It takes/took(sb+时间+to do sth It takes me half an hour to get to school
动词不定式作主语 • 动词不定式作主语，现代英语倾向采用it作形式 主语，把动词不定式结构后置的句式。句型： • １It is+形容词＋to do sth • It is best to come to China in spring. • 2如强调动作执行者，则用for sb to do sth • It’s easy for us to make mistakes. • 3.It is +形容词+of sb to do sth • 如指人的一种特性，如clever,good,nice,kind等， 动词不定式前用of sb,而不用for sb. • It’s very kind of you to help me. • 4 It takes/took (sb)+时间＋to do sth • It takes me half an hour to get to school
动词不定式作定语 ·注意：动词不定式作定语常放在被 修饰的名词或代词后面，如： 1 I have a lot of food to eat. 2 He has nothing to do. 动词不定式作宾语 基本句型：find/think+it+形容词+to do sth I find it useful to learn English well
动词不定式作定语 • 注意：动词不定式作定语常放在被 修饰的名词或代词后面，如： • 1 I have a lot of food to eat. • 2 He has nothing to do. • 动词不定式作宾语 基本句型：find/think +it+形容词+to do sth I find it useful to learn English well
动词不定式作宾补 ·1作ask,like,tell等的宾补时，to不能省， 句型：ask sb to do sth E.g He asked me to talk about English study. ·2使役动词let,have,make等和感官动词 feel,hear,see,watch等则省略to E.g The teacher made him say the word like this. ·3.help后to可省略，也可不省略 E.g Can you help me (to)learn English?
动词不定式作宾补 • １作ask,like,tell等的宾补时，to不能省， 句型：ask sb to do sth • E.g He asked me to talk about English study. • 2使役动词let,have,make等和感官动词 feel,hear,see,watch 等则省略to. • E.g The teacher made him say the word like this. • 3.help后to可省略，也可不省略 • E.g Can you help me (to) learn English?
动词不定式作状语 ·1放在句首或句尾均可，表目的。 He stopped to have a rest. ·2在作表语的形容词或过去分词后，表原 因。 I'm sorry/surprised to hear that. ·3用在to0..t0..结构中 He is too young to go to school
动词不定式作状语 • １放在句首或句尾均可，表目的。 • He stopped to have a rest . • 2在作表语的形容词或过去分词后，表原 因。 • I’m sorry/surprised to hear that. • 3用在too…to…结构中 • He is too young to go to school
Practice 。1 It is interesting (play)with pets 2 (do)the job well is not easy. 3 They have little food (eat). 4 She has nothing (say). 5.Tell her (turn)it down. ·6.Ask him (come)quickly. 7.Later he left home (work )in different cities
Practice • 1 It is interesting___(play)with pets. • 2 __(do)the job well is not easy. • 3 They have little food __(eat). • 4 She has nothing__(say). • 5. Tell her___(turn)it down. • 6. Ask him___(come)quickly. • 7.Later he left home __( work )in different cities
8.I'm happy (see)you. ·9.lt's too hard _(study)English. ·l0.She wanted (borrow)my CD player. ·1l.She came (give)us a talk yesterday. 12She found him (be)a very good pupil 13.(play)in the street is dangerous
8.I’m happy__(see) you. • 9. It’s too hard ___(study)English. • 10.She wanted___(borrow)my CD player. • 11.She came___(give) us a talk yesterday. • 12She found him__(be)a very good pupil. • 13.__(play)in the street is dangerous