如题所述
扩展资料
一、当to do不定式作主语
1、一般用it作形式主语,不定式后置,具体的句型为It's adj/noun (for sb) to do。
例如:It's a pity for you to drop out of school.
真遗憾,你竟然辍学了。
It's a good idea for you to eat less fried food
你少吃点油炸食品是好想法。
二、当to do不定式作宾语
1、谓语动词+动词不定式(多数动词属于此类动词)
例如:Some students hate to study English.
有些学生不喜欢研读英语。
He pretended to be a good man.
他假装是好人。
2、系表结构+动词不定式
例如:I am glad to see him.
我很高兴看到他。
His health is likely to get worse.
他的健康可能会恶化。
三、当to do不定式作宾语补足语
1、具体结构为:主语+谓语+宾语+动词不定式
例如:The teacher urged his students to prepare for the exam.
老师劝他的学生准备考试。
Their help enabled me to finish the work with ease.
他们帮助我,使我能够顺利地完成工作。
2、当动词不定式做make, have, let, hear, see, feel等动词宾语的补足语,要省略“to”
例如:My father will probably have Tom paint the house green.
我爸爸很可能叫汤姆把房子漆成绿色。
I felt my heart beat violently.
我感觉到自己的`心跳得很厉害。
四、当to do不定式作目的状语
1、具体结构为:in order/so as + 动词不定式
例如:He must work very hard in order to support his large family.
他必须拼命工作以养活他的大家庭。
Listen carefully so as to follow the teacher.
要仔细听才能听懂老师讲的课。
2、具体结构为:be used + 动词不定式
例如:The book is used as a reference book.
这本书被用来做参考书。