一．词汇(每空2分，共40分)
1.The invention of the computer is a great ___________ (achieve) .
2.What are you a_________ about?
3.She works hard for the _________(福利) of the poor.
4.He was on his best _________ (behave) .
5.The teacher i___________ us to study hard.
6.I saw him sitting in the _______of the tree.
7.It proves ____________(值得的) to do the job.
8.The police have been _____________(observe) his movements these days.
9.As a teacher, he is __________(respect) for his good teaching.
10.O______ you begin to read it, you will like it.
11.They are doing some r__________ on the effects of cigarette smoking.
12.It is important to stay calm in an ________________(紧急状况).
13.Common interests form a b_________ between us.
14.You can r_______ to the dictionary when you come across a new word.
15.She d_________ twins last night.
16.His pulse ________(速率) dropped rapidly.
17.She always shows her __________(仁慈) to children.
18.Her _______________(孩童时代) had been very happy.
19.There is a g_________________ gap between our parents and us.
20.He was _______________(体贴) of everyone.