Question

閱讀下面短文并回答問題，然后將答案寫到答題卡相應的位置上（請注意問題后的詞數(shù)要求）。

[1]Oops! In your 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 of dropping them. But you might want to think again. Scientists now say that 5 seconds are all it takes for foods to become contaminated with enough bacteria to make you sick.

　　[2]Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If we eat foods on which these bacteria are growing, we can become sick. One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Earlier this year, 370 people became sick after eating peanut butter that had been contaminated with Salmonella at the manufacturing factory. Salmonella are 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 carefully.

　　[3]Being a good housekeeper is another good way to prevent infection. If household surfaces aren’t washed thoroughly, they can support Salmonella for weeks. A team of scientists at Clemson University in South Carolina have tested the 5-second rule, using sandwich ingredients. First, they placed a known amount of Salmonella cells on three surfaces: wood, tile, and carpet. They then placed a slice of bread and a slice of bologna(博洛尼亞大紅腸) on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and bologna picked up enough bacteria to make you sick.

[4]So forget the 5-second rule. If your toast lands on the floor, throw it away. Stick a fresh slice of bread in the toaster. And this time, be careful not to drop it!

1.What is the “5-second rule” mentioned in the first paragraph? (no more than 18 words)

2.Why is it important for us to cook food carefully?(no more than 5 words)

3.What advice is given to prevent infection in the last paragraph? (no more than 10 words)

4.Why did the scientists at Clemson University carry out that test? (no more than 15 words.)

5.What is the author’s attitude towards the 5-second rule? (one word)

 

Answer 1

1.If you pick food up within 5 seconds of dropping them, they are safe to eat.

2.Because cooking kills bacteria.

3.Don’t eat food that has dropped on the floor./ Being a good house keeper.

4.To find out how long it takes these bacteria to attach to food.

5.Negative.

【解析】

試題分析：文章大意：人們遵循的“五秒鐘法則”即：“掉落的東西在5秒鐘之內(nèi)是不會沾染細菌的”.這一說法是正確的嗎？美國南卡羅萊納州的科學家做了一個實驗，結(jié)果發(fā)現(xiàn)僅僅五秒鐘,沾染到食物上的細菌足以致病，所以下次掉地上食物的時候，還是忘掉五秒鐘法則吧。

1.理解題，根據(jù)文章第一段最后一句Maybe you follow the “5-second rule”, which claims foods are safe to eat，if you pick them up within 5 seconds of dropping them.可以歸納出答案。

2.細節(jié)理解題。根據(jù)文章第而段最后一句Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods carefully.，從而可以得出答案。

3.細節(jié)理解題。根據(jù)文章最后一段So forget the 5-second rule. If your toast lands on the floor, throw it away. Stick a fresh slice of bread in the toaster. And this time, be careful not to drop it!可以歸納出答案。

4.細節(jié)理解題。從文章第三段But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment.可知科學家實驗的目的就是為了證明食物在多長時間內(nèi)才會沾染到足以致病的細菌。

5.5】推理判斷題。根據(jù)文章最后一段So forget the 5-second rule. If your toast drops on the floor, throw it away可知作者不贊同“五秒鐘法則”。

考點：考查科普類短文閱讀