键盘居然比坐便器还要脏！
A British computer magazine has discovered that our computer keyboards could be bad for our health. “Which Computing” asked a laboratory to check 30 keyboards in its London office for bacteria(细菌). The results were shocking and disgusting. The lab scientists said five of the keyboards they tested put people at risk of illness. One keyboard contained 150 times more bacteria than health officials say is safe. Its test results showed it was five times dirtier than a toilet seat.
The researchers said the germs(病菌) they found could easily cause symptoms similar to food poisoning, such as diarrhoea(腹泻) and upset stomachs. They named these illnesses “QWERTY tummy” after the first six letters on the keyboard. The magazine recommended people clean their keyboards regularly to stay healthy and avoid stomach bugs.
The magazine said almost half the people they interviewed cleaned their keyboard less than once a month. Ten percent of people said they never cleaned it. Editor, Sarah Kidner, warned, “Most people don’t give much thought to the dirt that builds up on their PC. But if you don’t clean your computer, you might as well eat your lunch off the toilet.” The main causes of germs and bacteria are crumbs(食物碎屑) and other small pieces of food that drop onto the keys while workers eat at their desks. Oily fingers from eating potato chips and fries also attract bacteria.
Joanne Baxter, a secretary from West London, said she was shocked at this news. “I had no idea that my keyboard could make me ill. I’m afraid to find out what nasty things there are hiding under my keys,” she said.
1.The scientists find that _______.
A every keyboard contains overmuch bacteria
B one in five keyboards puts people at risk of illness
C computer keyboards will always be harmful to our health
D a toilet seat contains thirty times more bacteria than the safe level
解析：选D。D 推理判断题。根据第一段可知，科学家研究了30 个键盘，其中 5 个使人们面临生病的危险，一个键盘携带的细菌含量是卫生官员所称的安全水平的 150 倍，比马桶脏 5 倍。由此可推知马桶携带的细菌含量是卫生官员所称的安全水平的30倍。故选 D。
2.What were people advised to do by the British computer magazine?
A Keep exercise and stay healthy.
B Carefully protect their computers.
C Clean keyboards at the regular time.
D Avoid upset stomachs and diarrhoea.
解析：选C。C 细节理解题。根据第二段最后一句“The magazine recommended people clean their keyboards regularly to stay healthy and avoid stomach bugs.”可知该杂志建议人们定期清洁键盘以保持健康和避免胃病，故选 C。
3.What will most probably bring our keyboards more bacteria?
A Touching computers with fingers.
B Throwing crumbs into garbage bins.
C Eating potato chips at office tables.
D Dropping waters onto the keys.
解析：选C。C 细节理解题。根据第三段“The main causes of germs and bacteria are crumbs(食物碎屑) and other small pieces of food that drop onto the keys while workers eat at their desks. Oily fingers from eating potato chips and fries also attract bacteria.”可知，键盘上的细菌来源主要是在工位上吃饭掉落的食物碎屑和小块食物，另外用吃薯片和薯条的油手去触碰也会给键盘带来细菌。故选 C。
4.What does Joanne Baxter most possibly do after hearing the news?
A Clean her computer keyboard.
B Let her keyboard stay the same.
C Refuse to use her keyboard again.
D Attract more bacteria to her keyboard.
解析：选A。A 推理判断题。根据最后一段可知，乔安妮对此很震惊，她不知道键盘竟然可能让她生病，同时也表示很怕会在键盘下面发现什么脏东西，由此推测她更可能会清理干净自己的键盘以确保它不会让自己生病，故选 A。
5.In which part of a newspaper can you most probably read this passage?
A Technology.
B Sports.
C Health.
D Fashion.
解析：选C。C 文章出处题。文章围绕电脑键盘长期不清理对人体健康有害的研究结果展开，与健康有关，故选 C。