A、 At home.
B、 In the office.
C、 In a computer store.
D、 In a bar.

【正确答案】 B

【答案解析】解析：信息明示题。男士在证明万维网的有用之处时说I can sit here in my office and do almost anything，可见男士是在办公室里面，故选B。

A、 Chicago.
B、 Hong Kong.
C、 San Francisco.
D、 Illinois.

【正确答案】 C

【答案解析】解析：细节推断题。男士在谈论妹妹来的信时说My sister wanted to know if I was planning to visit her in San Francisco during my vacation，可见他的妹妹生活在San Francisco。故选C。

A、 Stay at home.
B、 Attend a computer course.
C、 Celebrate his mother' s birthday.
D、 Go to San Francisco.

【正确答案】 D

【答案解析】解析：细节推断题。男士在介绍了妹妹的来信后说I checked an airline reservation service．I looked at the schedule and picked a flight，booked it，and sent the information to my sister。可见他是准备去看妹妹的。其他三个选项虽也有可能，但D是唯一可以推断出的，故选D。

A、 World Wide Web is the Internet.
B、 The first thing the man did when he got up was to turn on the computer.
C、 Today is the birthday of the man' s mother.
D、 The woman is not good at computer.

【正确答案】 A

【答案解析】解析：信息明示题。B和C在对话中都有所提及，而从文章中，男士一直在向女士介绍万维网，可以推断出女士并不擅长电脑操作，故D内容正确。而在对话一开始，男士就说到it’s the World Wide Web，which is part of the Internet。可知两者并不相等，A内容错误，故选A。