题目列表(包括答案和解析)
Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.
Now scientists say the microbes on our hands cou
ld be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌
) a surface j
ust by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.
【小题1】According to the passage,_______ could be used to identify the criminal.
| A．fingerprints | B．scientists' hands |
| C．microbes | D．fingerprints and microbes on people's hands |
| A．our hands look similar | B．the microbes will make the keyboard dirty. |
| C．we should compare hands often | D．we have our own sets of microbes. |
| A．just stay on our hands | B．also stay on the keyboard |
| C．will do harm to you | D．will disappear |
| A．fingerprints are no longer useful in fighting crime |
| B．microbes can be found on everyone's hands. |
| C．unlike microbe fingerprints can be cleaned if people wipe them |
| D．the microbe is used as a useful tool |
| A．Microbes May Tell Who You Are | B．Scientists Say Everyone Has Microbes |
| C．Noah Fiercer Does Research Into Microbes | D．Fingerprints Help Catch Cr iminals |
Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.
Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.
1.According to the passage,_______ could be used to identify the criminal.
A. fingerprints B. scientists' hands
C. microbes D. fingerprints and microbes on people's hands
2.Paragraph 3 tells us that________.
A. our hands look similar B. the microbes will make the keyboard dirty.
C. we should compare hands often D. we have our own sets of microbes.
3.When you work on computer, the microbes________.
A. just stay on our hands B. also stay on the keyboard
C. will do harm to you D. will disappear
4.From Noah Fierer we know that________.
A. fingerprints are no longer useful in fighting crime
B. microbes can be found on everyone's hands.
C. unlike microbe fingerprints can be cleaned if people wipe them
D. the microbe is used as a useful tool
5.What’s the best title of the passage?
A. Microbes May Tell Who You Are B. Scientists Say Everyone Has Microbes
C. Noah Fiercer Does Research Into Microbes D. Fingerprints Help Catch Criminals
Look closely at your hands. Are they clean? It doesn't matter how many times you wash your hands, tiny microbes (微生物) still stay on them. But don't worry. Most microbes don't harm you.
Now scientists say the microbes on our hands could be used in a surprising way; fighting crime, According to a recent survey microbes as well as fingerprints(指纹) could be used to indentify the criminal.
Everyone has his own set of microbes on the hands. That is to say, if you and your best friend were able to see and compare all the microbes on your hands, your hands probably would look different. Some microbes only show up on your hands while others live only on your friend's hands.
When you work on a computer you leave the microbes from your hands on the keyboard. The scientists can easily tell the owner of the keyboard by looking at the microbes on it. Even if you don't leave your fingerprints behind, your microbes may give you away.
Noah Fierer, a scientist, says. "You can only clean a fingerprint, but you can't sterilize (使无菌) a surface just by wiping(擦) it off," He says that scientists have a lot more work to do before the microbe is used as a useful tool.
1.According to the passage,_______ could be used to identify the criminal.
A. fingerprints B. scientists' hands
C. microbes D. fingerprints and microbes on people's hands
2.Paragraph 3 tells us that________.
A. our hands look similar B. the microbes will make the keyboard dirty.
C. we should compare hands often D. we have our own sets of microbes.
3.When you work on computer, the microbes________.
A. just stay on our hands B. also stay on the keyboard
C. will do harm to you D. will disappear
4.From Noah Fierer we know that________.
A. fingerprints are no longer useful in fighting crime
B. microbes can be found on everyone's hands.
C. unlike microbe fingerprints can be cleaned if people wipe them
D. the microbe is used as a useful tool
5.What’s the best title of the passage?
A. Microbes May Tell Who You Are B. Scientists Say Everyone Has Microbes
C. Noah Fiercer Does Research Into Microbes D. Fingerprints Help Catch Criminals
| 阅读理解。 | |
Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security ( 安全). Her friend, Kate, found this article and sent it to her.
| |
| 1. Which part of the text gives you information on how to lock up your bicycle when you leave it? | |
| A. Locks. B. Marking. C. Registration. D. Basic Security. | |
| 2. The underlined phrase “act as a deterrent to a thief” means ______. | |
| A. help you recognize your bike B. help the police find your bicycle C. stop someone stealing your bicycle D. stop you worrying about your bike | |
| 3. The article advises you to keep a record of your bicycle _______. | |
| A. in the bike shop and your computer B. in the police station and a security company C. in a security company and your university D. by yourself and in a security company | |
| 4. The main purpose of this article is _________. | |
| A. to tell you what to do if your bicycle is stolen B. to suggest ways of keeping your bicycle safe C. to give you advice on where to buy a good lock D. to say why you shouldn’t keep your bicycle in a quiet place |
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