2. It is/was +强调部分+that...　 正是....

Practice:

1. It takes/took +(人)+时间 +to do.　 做...花了某人多少时间. / Sth take sb (多少时间)

　 Sb spend + 时间/金钱 +( in) doing sth

　　　　　　　　　　　　 on　 sth

　 Sb pay (多少钱) for sth　 /　 Sth cost sb (多少钱)

19. He arrived in New York, ____ some time later, he became a writer.

　 A. when　　　　　　 B. where　　　　　　 C. that　　　　　　 　D. which

18. Mr. Green drove slowly on the way home until he reached the high way, ____ the speed limit was at least 60 miles per hour.

　 A. because　　　　　 B. which　　　　　 　C. where　 　　　　　D. that

17. The time ____ I spend on maths is much more than on English.

　 A. that　　　　　　 B. when　　　　　 C. at which　　　　 　D. during which

16. I, ____ your friend, will help you out.

　 A. who is　　　　 B. who am　　　　 C. that is　　　　　　 　D. I am

15. Can you think out a situation ____ this idiom can be used?

　 A. which　　　　　 B. that　　　　　　　 C. where　　　　　 　D. with which

14. I shall never forget the day ____ we worked together and the day _____ we spent together.

　 A. when; which　　　　　 B. which; which　　　　 C. when; when　　　　　 D. which; when

13. Is this the house ____ the great musician was born in?

　 A. which　　 　　　B. where　　　　　 C. the one　　　　 　　D. it

12. Is this museum ____ some foreign tourists visited the day before?

　 A. which　　　　 B. where　　　　　　 C. the one　　　　　 D. it