一、根据句意及首字母提示完成单词。
1. Don't make any noise while they're r______ the songs, OK?
2. The police haven't a______ the murderer.
3. These people are the w______ of the traffic accident in the street.
4. There is a large s______ of railways in our country.
5. I s______ it is the traditional Chinese culture on her video that attracts the world.

1. recording 2. arrested 3. witnesses 4. system 5. suppose

二、根据句意，用括号中所给单词的适当形式填空。
1. Breathing __________, I stopped and sat down to rest. (heavy)
2. So far, no one __________ any information about the murderer. (offer)
3. We are sorry to hear the __________ of the programmer. (die)
4. If you __________, you'd better go to a hospital at once. (wound)
5. He was seen __________ his office at about 5:30, and after that, nobody knew where he went. (clean)

1. heavily 2. has offered 3. death 4. are wounded 5. cleaning

( )1. — There was a big fire in the house last night. That's a terrible accident.
— Luckily, the firemen __________ the house to save the people trapped inside.
A. put out
B. let off
C. opened up
D. broke into

D

( )2. Bill will work as a(n) ______ to interview some players in the coming football match.
A. guest
B. reporter
C. tourist
D. engineer

B

( )3. Could you tell me ______ the bike without any help this morning?
A. how does he mend
B. how he mends
C. how he mended
D. how did he mend

C

( )4. Jack was ______ with breaking ______ several security systems.
A. charging; on
B. to charge; in
C. charged; into
D. charges; to

C

( )5. The police offered a(n) ______ of 5,000 for any information about the robbery.
A. prize
B. award
C. reward
D. pay

C

( )6. If something is confirmed, it is ______.
A. not sure
B. not true
C. proved to be true
D. very hard to solve

C

四、根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。
The police find most criminals because somebody tells them who the criminals are. They find other criminals by using science and their computers. When there is a bank robbery, the police first look 1. t______ their computers for the names of the bank robbers that they know about. Then they go and talk to any of these robbers who are not in 2. p______. They ask them where they were when the robbery happened. If any of these people cannot give a good 3. a______, the police will often use science to find out if one of them is the robber.
Many criminals leave something of themselves at the places of the 4. c______ like a fingerprint or hair. Or they take something away on their 5. s______ or clothes, like dirt or animal hair. If they leave behind some of their 6. b______ or their hair or a piece of skin, it will have their DNA inside it.
Everyone's DNA is different and their 7. f______ are also different. So, if a criminal cuts himself or herself during a robbery or leaves his or her hair, or 8. e______ a small piece of skin, scientists can find out what his or her DNA is. The police can then ask the 9. s______ to give them his or her hair or some blood and see 10. w______ it has the same DNA. Many criminals are in prison today because of this kind of evidences.

1. through 2. prison 3. answer 4. crime 5. shoes 6. blood 7. fingerprints 8. even 9. suspect 10. whether