Unit 2 Healthy Lifestyle 语法Grammar 动词不定式做主语-2023-2024学年高二英语单元语法，词汇练习(人教版选修第三册)

Unit 2 Healthy Lifestyle 动词不定式做主语 1．It’s worthwhile (read) literary books because they can help us to know more about the society and life． 2．It is easy (relate) what happened in your childhood to your present state of mind. 3．This year, was hard to tell whether my prize or the one chosen by my 14-year-old brother, Jason, was the winner. 4．It can be a big headache (balance) your developing mental needs too. 5．Although sometimes it may seem impossible (get) along as a family, you can take action to improve the situation. 6．In the past, it was difficult for us (imagine) how convenient to live with the help of the Internet. 7． (surf) the Internet is definitely a big part of my life. 8．It’s the duty for every soldier (defend) our country against enemies. 9．It is very convenient (travel) in London by underground. 10．It is my duty (protect) these animals from being killed. 11．It is worthwhile (spend) two hours reading the book. 12．Besides, on some occasions, it is more convenient (use) English words. 13．It makes sense (buy) at dealer prices so you can save money. 14．It's essential (know) which is the best treatment for the burns. 15．It’s impossible (anticipate) when the disease will break out. 16．It is important for us (schedule) everything in advance. 17．It’s a good tradition (respect) the old and take good care of the young. 18． (do) this is to cut the foot to fit the shoe. 19．It is very dangerous for the blind (go) across the busy street. 20．It’s not a good idea (criticise) someone in front of others. 21．It is unwise (expect) your child to follow your path. 22．It’s my great honour (announce) that I am running for chairman of the Students’ Union. 23．It was great (see) them again. 24．The real joy in life is in the process of doing something. (seize)