以下几道英语不定式各在句子中充当什么成分?·····分析一下

题目

以下几道英语不定式各在句子中充当什么成分?·····分析一下
1.the best way 【to improve your english】 is【 to join an english club】
2.if you don't know 【to spell new words】.look them up in a dictionary
3.I started 【to watch english-language TV】
4.I decided 【to take lots of grammar notes】 in every class
5.I don't have a partner 【to practice english with】(思考一下,with能省略么)
6.It wasn‘t easy for me 【to understand the teacher 】when she talked to the class

答案

1.the best way 【to improve your english】 is【 to join an english club】
定语 表语
2.if you don't know 【to spell new words】.look them up in a dictionary
宾语
3.I started 【to watch english-language TV】
宾语
4.I decided 【to take lots of grammar notes】 in every class
宾语
5.I don't have a partner 【to practice english with】(思考一下,with能省略么)
定语 with不能省略,practice english with sb
6.It wasn‘t easy for me 【to understand the teacher 】when she talked to the class
主语 句首it是形式主语