observe observation specialize specialist/specialization advertise advertisement 　connect connection organize organization inspire inspiration argue argument permit permission 　　Answers to Exercise 3：

　　1 observed　2 worthwhile　3 argue　4 respect

　　Discovering useful structures

　　Answers to Exercise 2：

　　1 is；are　2 has；are　3 were；is　4 were；seem　5 is；are　6 is；were

　　Answer key for Exercise 3：

　　is；is；has；have；carry/carries；has；wants；love；are

　　Exercise 4：

　　Other possible questions are：

　　What does your class do at the weekend?

　　What hobbies do your group of students have?

　　What teams do you have at school?

　　Who is in the team?

　　When can the public visit your school?

　　Does the school give concerts?

　　Can the public join the audience?

　　Do the police protect the school buildings?

　　Has the government approved the school?

　　USING LANGUAGE

　　Reading

　　Answers to Exercise 1：

　　1 She got a medical training for her career.

　　2 She became a specialist in women's diseases.

　　3 She had made sure that about 50 000 babies were safely delivered.

　　Suggested answers to Exercise 2：

　　1 Lin Qiaozhi wrote a small book for mothers in the countryside who were not able to get to a hospital easily.It was to help them look after their babies properly.

2 It was not easy for women to get medical education at that time，particularly medical care that was concerned with women and children.Education was for men first and women second.