动词不定式 动词不定式的基本形式是“ to+动词原形“ , 有时可以不带 to. 动词不定式没有人称和数的变化 , 在句子中不能作谓语。在句中可以作主语、表语、宾语、宾语补足语、定语和状语。构成： to + do( 动词原形 )用法：1. 用作宾语 (v. + to do ) I want to buy a computer. She hopes to find a better job. I wish to go with you. need to do learn to do agree to do plan to do decide to do refuse to dobegin to do start to do try to doforget to do remember to do like to doStop to do go on to do2. 用作宾语补足语： (v. + sb. + to do )She asked me to help her.The teacher told him to come on time.Edison’s mother taught him to read and write. want sb. to do wish sb. to do get sb. to do order sb. to do find sb. to be like sb. to do would like sb. to do help sb. to do作宾语补足语不带 to 的情况：Let me do it.I saw him cross the street.常见动词有：使役动词 : let, make, have感官动词 : see, watch, hear, feel, listen to比较：I heard her singing in the next room.I heard her sing in the next room.3. 用作状语 (adverbial) ：He came to show me his new CD player. ( 目的 )I went there to see my teacher. ( 目的 )She came back to get her English book. ( 目的 )The boy was too frightened to move. ( 结果 )4. 用作主语1. To be here at Christmas time is my dream.2. To go abroad is his dream. 3. To say is easy, to do is difficult.( 这时可将其用形式主语 it 来替换 ) →It is my dream to be here at Christmas time. → It is his dream to go abroad. → It is easy to say, it is difficult to do.5. 用作表语His work is to feed the animals. Her job is to look after the patients.My wish is to be a scientist.Give me something to drink. I have two books to read. They have much food to eat. He asked for a room to li...
