以下提供若干个案例，每个案例下设若干道考题。请根据案例所提供的信息，在每一道考试题下

根据句意和所给中文写出句中所缺的单词。

1. First, please _________ (介绍) yourself to us all, OK?

2. Something should be done to protect the ________ (环境) in our hometown.

3. After _________ (检查) the computer, he told me there were no tickets.

4. Smoking will _________ (当然) do harm to your health.

5. There will be an exciting football match between China and Japan on _________ (频道) 5 tonight.

The country life he was used to ____ greatly since 1992. [ ]

A. change

B. has changed

C. changing

D. have changed

急性毛细支气管炎的主要病原体为（）

A.肺炎双球菌

B.肺炎支原体

C.肺炎衣原体

D.呼吸道合胞病毒

E.念珠菌

联系全文，对中国茶道衰落的根本原因判断准确的一项是：

A．喝茶成了一种止渴的需求

B．太洋场化

C．中国太穷困了

D．日本“茶道”的渗入

注水泵是（）。

A.容积泵

B.离心泵

C.蒸汽透平泵

D.隔膜泵