学位英语

Singing Alarms Could Save the Blind

If you cannot see,you may not be able to1 find your way out of a burning building — and that could be fatal.A company in Leeds could change all that2____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 where the____5____ is coining 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," she 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 of3 a large____8____ room.It____9____ them nearly four 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____ 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.

注释：

1.在谓语动词中,不能并列使用两个情态动词,如may和can就不能并列使用。如果由于表达需要,要同时用"可能"和"能够",就得说(写)成may be able to.如：

I may be able to come tomorrow,but I cannot promise.

我可能明天来,但我不可能作出承诺。

2.that指第一句所表达的意思。

3…… find their way out of ……：意为"找到从出去的路"。

练习：

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

答案与题解：

1.B 空格后是一种装置,用它来改变火灾时找不到出口的危险境况。表达"用……装置"这层意思就要用介词with.其他几项均不符合句子的意思。

2.A Sound Alert是一家公司的名字,a company是Sound Alert的同位语,根据句意判断,应选择run by,意为"由……经营的"。其他选项虽然语法正确,但都与句意不符。

3.C 从文章标题以及文章内容和本句后面部分resource center for the blind,可以推断这里最好的选择就是C.

4.D 因为这种警告装置已在上文中提到：第一段中的directional sound alarms,第二段中的installing the alarms in a residential home ……,所以这里的alarms是特指,要用定冠词。选项C是错误的,因为它是单数形式。

5.B 句子的前半句有a wide range of frequencies,发出来的应该是sound,而不是令人烦躁的noise.用music或bell都有些突然,与上下文的意思不连贯。

6.D 文章一直在讨论警报器、声音和波长,所以首先排除选项A;从上下文的意思看,不可能是选项B和C,因为警报器的制造,就是为了让失明的人听到。

7.C 选择A、B、D均不能构成语义连贯的句子,而且语法上也有问题。选项C能使句子结构成为"It is…… that"的强调句型。

8.B 从所给的选项可以看出,这里要表达的意思是"烟火弥漫的房间"。有了这个理解,现在要做的就是选择正确的表达形式。A是"烟熏的",D 是"使……烟火弥漫的",所以意思不对,C填入后就出现filled with smoke room,不符合语法。只有B是正确选项。

9.C 这里显然是"It takes somebody+time+动词不定式"的句型,但选择什么时态是关键。从上句看,应选择一般过去时,因为整个段落是对一次实验的描写,而且上面一句也使用了一般过去时。

10.C 后半句的one指上半句中的a sound alarm.该句上半句和下半句由but连接,表示相反的意思,从后半句的with可以看出,两个相对比的事物是：the door without a sound alarm和the door with a sound alarm,所以选择C.

11.A 选项B、C和D显然是错误的,因为词义不符。只有选项A是答案。句子的意思是,Withington在她的大学里研究大脑如何处理声音。

12.D 句子中的more …… than表示该句是对两样事物的对比。than后面是the source of a narrow band,这里的narrow和前半句的wide形成反比,从上下文中可以看出,the source of a narrow band of(frequencies)是和the source of a wide band of frequencies形成对比。

13.D 这个句子有主语alarms,有谓语have been installed,这里应填入动词的分词形式。be based on是常用的搭配,所以应选择动词的过去分词形式。选项A的basis是名词,明显是错的。

14.A 根据上半句中的rising or falling frequencies,这里应填入or,与上半句表达的意思相一致。音频升高表示上楼,音频降低表示下楼。

15.A首先确定主语They指的是第一句中的主语The alarms,后半句说这种设备得到大笔资助。根据上文内容,我们知道资助的目的是开发这种alarms,所以应该选择developed.

编辑推荐：

2016年职称英语考试报名时间专题

2016年职称英语考试零基础通关方案

（责任编辑：vstara）

共2页,当前第1页  第一页  前一页  下一页