题文

阅读理解。

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

题型：阅读理解  难度：中档

答案

1-5     DDBCC

据专家权威分析，试题“阅读理解。 Look closely at your hands. Are they clean? It ..”主要考查你对  日常生活类阅读  等考点的理解。关于这些考点的“档案”如下：

日常生活类阅读

考点名称：日常生活类阅读

• 日常生活类阅读：
  日常生活这一话题主要涉及人们衣食住行等方面的活动。这一话题的选材主要针对人们日常的工作，生活以及学习情况。
  做这一类题时，最主要的是要把握好人物的活动内容，时间和地点。