If you cannot see, you may not be able to find your way out of a burning building-and that could be fatal. A company in Leeds could change all that__1__ directional sound alarms capable of guiding you to the exit.
Sound Alert, a company__2__ the University of Leeds, is installing the alarms in a residential home for__3__ people in Sommerset and a resource centre for the blind in Cumbria.__4__produce a wide range of frequencies that enable the brain to determine the __5__ is coming from.
Deborah Withington of Sound Alert says that the alarms use most of the frequencies that can be __6__ by humans. It is a burst of white noise__7__ people say sounds like static on the radio, he says. Its life-saving potential is great
She conducted an experiment in which people were filmed by thermal-imaging cameras trying to find their way out of a large__8__ room. It__9__ them nearly our minutes to find the door__10__ a sound alarm, but only 15 seconds with one.
Withington studies how the brain__11__ sounds at the university. She says that the __12__ of a wide band of frequencies can be pinpointed more easily than the source of a narrow band. Alarms__13__ on the same concept have already been installed on emergency vehicles.
The alarms will also include rising or falling frequencies to indicate whether people should go up__14__ down stairs. They were__15__ with the aid of a large grant from British Nuclear Fuels.
1. A) without B)with C)having D)selling
2. A) run by B)changed by C) decorated by D)criticized by
3. A) slow B)deaf C)blind D)lame
4. A) Alarms B) Alarm C) The alarm D) The alarms
5. A) noise B) sound C) music D) bell
6. A) watched B) produced C) learnt D) heard
7. A) where B) what C) that D) how
8. A) smoked B) smoke-filled C) filled with smoke D) smoke-filling
9. A) has taken B) takes C) took D) will take
10. A) on B) near C) without D) from
11. A) processes B) produces C) possesses D) proceeds
12. A) feature B) quality C)diagram D) source
13. A) basis on B) base on C) basing on D) based on
14. A) or B) and C) but D) otherwise
15. A) developed B) determined C) discovered D) delivered
key: BACDB DCBCC ADDAA
2011年实用口语练习:取钱那些事
2011年实用口语练习:高铁开通了
英文如何表达“拍马屁”或“巴结”
2011年实用口语练习:说客 拾人牙慧
口语情景对话:走遍美国精选 感恩节ACT 1 - 1
实用口语情景轻松学:奶奶过生日美颠儿颠儿的
如何用英语表达“你得减肥了”
实用口语:关于衣服的必备短语
2011年实用口语练习:歉意如何说出口 1
实用口语情景轻松学:我没在海里游过泳
口语情景对话:走遍美国精选 偷得浮生半日闲ACT 1 - 2
2011年实用口语练习:从头至尾
实用口语情景轻松学:有假钞的时候要送到银行去
英语口语主题:交际英语热门话题47个(6--闲聊)
2011年实用口语练习:今天我做东
趣味英语:搭讪十大妙招
实用口语:Singing With Friends
英语口语主题:交际英语热门话题47个(3--邀请)
2011年实用口语练习:课余阅读
如何用英语表达“原来啊…”
实用口语情景轻松学:我怀疑我是否能及格
2011年实用口语练习:“锅中的火花”
英语口语:怎样放“狠话”让对方离你远点
口语情景对话:走遍美国精选 当仁不让 ACT 3 - 2
9句狠话教你怎么用英语让人“滚开”
2011年实用口语练习:昙花一现式的一夜成名
2011年实用口语练习:口语当中的ball
英语口语-安慰
2011年实用口语练习:In the bookstore 在书店里
男生女生:我们可以只当朋友吗?
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |