A、 Projector.
B、 Software.
C、 Output equipment.
D、 Slide.

【正确答案】 B

【答案解析】解析：细节题。由倒装强调句only by using good software，can this system give us a good authentic English speaking environment．可知是software，正确答案为B。

A、 The system invites learners to speak directly with speakers.
B、 The system offers learners to do dictation.
C、 The system invites learners to be involved in the conversation of native speakers.
D、 The system can keep record.

【正确答案】 C

【答案解析】解析：细节题。根据They invite the learner to become part of the“oral class”where the learner is immersed inthe conversation of native speakers in everyday situations．可知此系统可将学习者置身于日常对话中。get involved in与be immersed in为同义词替换。因此，正确答案为C。

A、 Improving spoken English.
B、 Sharpening listening ability.
C、 Enlarging idiom vocabulary.
D、 Improving writing skills.

【正确答案】 D

【答案解析】解析：细节题。对话中依次列举了三点好处：(1)the benefit for the English learner does not stop at the improvement of their spoken English；(2)They will also sharpen their listening ability；(3)enlarge their idiom vocabulary at the same time。使用排除法，正确答案为D。

A、 Multimedia teaching system.
B、 A TV program.
C、 How to improve oral English.
D、 How to communicate with foreigners.

【正确答案】 A

【答案解析】解析：主旨题。此对话围绕multimedia teaching system展开讨论。因此，正确答案为A。