In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat if you pick them up within 5 seconds after dropping them.      

But you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria（細(xì)菌）to make you sick.

Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can become sick.

One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly.[來(lái)源:]

But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile (瓦片), and carpet. They placed a piece of bread and a piece of bologna（一種大紅腸）on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick.

So, forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. And this time, be careful not to drop it!

1.In which part of a newspaper can you most probably find this passage?

         A. Culture                  B. Health                    C. Advertisement              D. Technology

2. After dropping a piece of toast, a person who follows the “5-second rule” will         .

         A. throw away dirty toast immediately and go away

         B. pick up the toast as quickly as possible and eat it

         C. eat the toast within 5 seconds and feel pleased

         D. get another piece of clean toast quickly and eat it

3.The scientists in South Carolina did the experiment to __________ .

        A. see how quickly bacteria can pollute food

         B. show that the 5-second rule is correct

         C. see how harmful bacteria are to people’s health

         D. show that bacteria grow at different speeds on different foods

 

【答案】

 

1.B

2.B

3.A

【解析】 略

 

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科目：高中英語(yǔ) 來(lái)源：期末題 題型：閱讀理解

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     Three Central Texas men were honored with the Texas Depart- ment of Public Safety's Director's Award
in a Tuesday morning cere mony for their heroism in saving the victims of a fiery two car acci dent.
     The accident occurred on March 25 when a vehicle lost control while traveling on a rain-soaked State
Highway 6 near Baylor Camp Road. It ran into an oncoming vehicle, leaving the occupants trapped inside as
both vehicles burst into flames.
      Bonge was the first on the scene and heard children screaming. He broke through a back window and
pulled Mallory Smith,10, and her sister, Megan Smith,9,from the wreckage.
     The girls' mother, Beckie Smith, was not with them at the time of the wreck,as they were traveling with
their baby sitter, Lisa Bow bin.
     Beckie Smith still remembers the sickening feeling she had up on receiving the call informing her of the
wreck and the despair as she drove to the scene.
     Bozeman and Clemmons arrived shortly after Bonge and helped rescue the other victims and attempted to
put out the fires.
     " I was nervous," Bozeman said." I don't feel like I'm a hero. I was just doing what anyone should do in
that situation. I hope someone would do the same for me."
      Everyone at the accident made it out alive, with the victims suffering from nonlife-threatening injuries.
Mallory Smith broke both femurs, and Megan had neck and back injuries. Bowbin is still recovering from a
broken pelvis, ankle and foot.
     The rescuers also were taken to the hospital and treated for cuts and smoke breathing, Bonge said.
     In addition, Bozeman not to meet accident victim Anthony Rus so in the hospital after the accident, where
Russo presented him with a glass frame inscribed with" Thank you," Bozeman said. Those involved in that
fateful encounter on Highway 6 credited God blessing for bringing them together.
     "Whatever the circumstances, Tuesday's ceremony provided a time to be grateful for those who put their
lives on the line for the lives of complete strangers," Beckie Smith said," We're calling it The Miracle on
Highway 6."
1. What's the main idea of the passage?
A. Three persons were awarded for rescuing victims in a car accident.
B. Three ordinary people were regarded as great heroes.
C. Several victims were carried to safety from the burning cars.
D. A car accident occurred on a rain-soaked State Highway 6.
2. Who saved Megan Smith from the damaged car?
A. Clemmons.
B. Anthony Russo.
C. Bozeman.
D. Bonge.
3. Which of the following can be used to describe Bozeman?
A. Kind.
B. Modest.
C. Excited.
D. Smart.
4. Which of the following is true according to the passage?
A. Luckily, no one received too serious injuries in the accident.
B. All the victims received slight injuries in the accident.
C. The rescuers were taken to the hospital to visit the victims.
D. The injured will soon recover from their injuries.
5. It can be inferred from what Beckie Smith said that ____.
A. she regarded the accident as a wonder
B. she was frightened by the serious accident
C. she thought highly of the rescuers
D. she called on others to learn from the rescuers

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