【编者按】精品学习网考试频道小编为大家收集并整理了“2012年英语初级BEC对话范文:使用投影仪和计算机”，供大家参考，希望对大家有所帮助。
1.No signal 没有信号
A: Why is there no signal?
B: Push the Function key and the F4 key at the same time.
A：为什么没有信号呢?
B：同时按住功能键和F4键。
2.Power outlet 电源
A: Where is the power outlet?
B: It's usually on the wall. But it seems to be under the table in this room.
A：知道电源在哪吗?把商务英语页面加入收藏夹
B：一般都是在墙上，但这个房间的好像是在桌子下面。
3.Power strip 电源插排
A: I think we need a power strip.
B: Okay. I'll get one right now.
A：我想我们需要一个电源插排。
B：好的，我现在就去拿一个。
4.Make sure 确认
A: Mike， please make sure that the projector works.
B: I checked twice already.
A：迈克，请确认一下投影仪是不是好用。
B：我已经查过两次了。
5.Turn on the projector 开投影仪
A: How do you turn on the projector?
B: Push the power button. It'll take a while before the projector is ready.
A：怎样开投影仪啊?
B：按下开关，投影仪开始工作之前要预热一会儿?
6.Back up 后退
A: John， could you back up one slide please?
B: Sure.
A：约翰，请退回到上一页好吗?
B：好的。
7. Connect the projector to the computer 把投影仪连接到电脑上
A: How do you connect the projector to the computer?
B: Use the cable. Connect one end to the projector input， and the other end to the computer output.
A：你知道怎样把投影仪连接到电脑上吗?
B：用这根数据线，一边连接投影仪的输入口，另一端连接电脑的输出口。
8.Get out of the presentation 结束演示
A: How do you get out of the presentation?
B: Push Esc， and you'll be out of the presentation.
A：能告诉我演示完毕怎样退出吗?
B：按 Esc 键，你就可以结束演示了。
9.Input selection 输入选择
A: How come I cannot get the signal?
B: Did you play with the Input Selection?
A：我这儿怎么没有图像呢?
B：你调整输入选择了吗?
10.Plug it in 插电源
A: Did you plug it in?
B: I did. It still dosen't work.
A：你插电源了吗?
B：插了，但还是不好用。