Biological Identification Technologies
When a person walks, the movement of his head, trunk, hipbones and limbs are all reflected in changes in his body. A computer 1 these changes into a database. Later, the computers can 2 identify him according to these changes. This is a new biological identification method and it can quickly identify an examinee 3 disturbing him. Its especially suitable for use in airports and supermarkets.
Everybodys voice is 4 . When a persons voice is recorded by an instrument, its voice frequency spectrum is called his sound print. Like a fingerprint, everybodys sound print is different. How can computers 5 his sound? First, his voice is recorded, which allows the computers to become familiar with his voice. It will then turn his sound characteristics into a 6 of digits. These digits represent the frequency, pitch and rhythm of the persons voice. These are the 7 on which the computers can distinguish1 his voice from 8 .
When that person needs to be identified, after he says only one word or two, the computers can identify him. The computers can even identify sounds coming 9 the wires. This will provide a 10 guarantee to electric banks and electric purchases.
We often bring ID cards2, work cards, or driver licenses with us to prove our identity. If all these cards are forgotten or lost, how can we prove 11 we are? In fact, its not difficult to prove whom you are, because your body 12 has identifying markers. Some are physiological features, such as fingerprints, sounds, facial types and eye color. The computer can help to identify you. Suppose your features have already been stored in the database3. To identify you, we have to take your picture with a camera and send it to a computer for 13 . First, the computer needs to reposition this picture according to the position of your eyes4, and then starts to read the message of your physiological features such as the 14 of your pupil5 to the whites of your eyes6 and the shape of his nose. Next, it seeks matching records from the database. Finally, it makes a 15 .
词汇:
hipbone n. 股骨 pitch n. 音高
Limb n. 肢体 license n. 执照
database n. 数据库 fingerprint n. 指纹
spectrum n. 频谱 reposition v. 改变位置
digit n. 数码,数字
注释:
1. on which the computers can distinguish:在这个基础上,电脑能区分 。 前面带有介词的关系代词which引导定语从句,修饰basis。
2. ID cards:身份证。ID = identity
3. Suppose your features have already been stored in the database:假定你的特征已经储存在资料库里。 Suppose your features have already been stored in the database 可以理解为 Let us suppose your features have already been stored in the database。
4. reposition this picture according to the position of your eyes:按照你的眼睛的位置重新调整照片的角度
5. pupil:瞳孔
6. whites of your eyes:你的眼睛的眼白
练习:
1. A) checks B) stores C) revises D) modifies
2. A) nearly B) approximately C) roughly D) accurately
3. A) without B) with C) for D) in
4. A) identical B) similar C) unique D) sole
5. A) hear B) understand C) distinguish D) record
6. A) series B) package C) line D) pair
7. A) origin B) cause C) reason D) basis
8. A) others B) anothers C)eachothers D) oneanothers
9. A) at B) on C) in D) through
10. A) cleverer B) tidier C) smarter D) safer
11. A) how B) whom C) what D) where
12. A) oneself B) themselves C) itself D) himself
13. A) processing B) copying C) coloring D) revising
14. A) size B) type C) ratio D) shape
15. A)recommendation B) decision C) proposal D) contribution
1. 分析文章标题, 了解文章主题, 确认文章主题词;
2. 对比被选项, 推测答案可能出现的范围;
3. 关注空格两端结构,借助空格所在的局部搭配结构及搭配语意判断答案;
答案与解析:
1. 分析文章主题:
Biological Identification Technologies
文章主题词:biological identification, technology
2. 直接解题:
When a person walks, the movement of his head, trunk, hipbones and limbs are all reflected in changes in his body.
1. A)checks B)stores
C)revises D)modifies
A computer 1 these changes into a database.
1. B 空格所在的句子说计算机...这些变化到资料库里,依据该句判断B是答案。
考点:常见动词的辨别。
2. A) nearly B)approximately
C)roughly D) accurately
Later, the computers can 2 identify him according to these changes.
2. D 空格所在的句子说随后, 计算机能根据这些变化...识别出他, 依据该句判断D 符合逻辑。
考点:常见副词的辨析。
3. A) without B)with
C) for D) in
This is a new biological identification method and it can quickly identify an examinee 3 disturbing him.
3. A 选项A和B是正反义词,因此首先重点关注。空格所在的句子说这是一项新的生物学辨认技术, 它能很快地识别出被监测者...打搅他,由此判断without应该出现在空格中, 表达能辨认人而又不去打搅 被辨认人。
考点:常用介词的基本用法。
Its especially suitable for use in airports and supermarkets.
4. A)identical B) similar
C) unique D) sole
Everybodys voice is 4 .
考点:近义形容词的辨析。
When a persons voice is recorded by an instrument, its voice frequency spectrum is called his sound print .
Like a fingerprint, everybodys sound print is different.
5. A)hear B) understand
C) distinguish D) record
How can computers 5 his sound?
5. C Distinguish 是文章主题词identify的近义词,因此C很可能是答案。 空格所在的句子说计算机怎样才能...他的声音?,由此排除B, 接下来的句子说首先, 他的声音被记录下来, 这允许计算机熟悉他的声音, 由此排除A, D, 因此C是答案。
考点:文章主题词。
First, his voice is recorded, which allows the computers to become familiar with his voice.
6. A)series B)package
C)line D)pair
It will then turn his sound characteristics into a 6 of digits .
6. A 空格所在的局部结构说一...的数字, a package of 、a line of 、a pair of 与 digits 都不搭配, 只有a series of digits 最合适。
考点:常见量词。
These digits represent the frequency, pitch倾斜度,投, 掷) and rhythm of the persons voice.
7. A) origin B)cause
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