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This was not an easy decision. ____, it is a decision that we feel is our duty.

A. Because B. And C. So D. However

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Almost everyone has dropped some food on the floor and still wanted to eat it. If someone saw you drop it, he or she might have shouted, “ 5-second rule!” This so–called rule says food is OK to eat if you pick it up in five seconds or less. But is that true?

Professor Anthony Hilton from Ashton University, UK, tested the rule with his students. They found that food dropped for five seconds is less likely to contain bacteria(细菌) than if it sits there for longer.

For the study, Hilton and his students tested a lot of foods——bread, pasta, cookies and candy—to see how much bacteria they had when they made contact with the floor. They allowed the food to lie on the different types of flooring—carpet(地毯), laminate (复合地板) and tile(瓷砖) — for three seconds to 30 seconds.

Not surprisingly, the longer the food was on the floor, the more bacteria it had. And the type of floor where the dropped food landed had an effect. Bacteria are least likely to transfer(转移) from carpet, while they are most likely to transfer laminate or tiled surface after more than five seconds.

The study also found that the wetter the food, the more likely it was to pick up bacteria. Although most people are happy to follow the 5-second rule, eating food dropped on the floor still carries an infection(感染) risk. “It very much depends on which bacteria are on the floor at the time.” Hilton told Forbes.

1.What is the “5-second rule’ mean?

A. People often shout at someone when they drop food on the floor.

B. Food is safe when you pick it up off the floor in less than five seconds.

C. It’s better to eat dropped food when it’s been on the floor for over five seconds.

D. Food will go bad when dropped food on the floor in five seconds or less.

2.Where is Ashton University?

A. In the USA. B. In England.

C. In China. D. In France.

3.Hilton’s test wanted to find out____________.

A. if the “5-second rule” is true

B. the students’ favorite food

C. which food is easily dropped

D. if different types of floor have different bacteria

4.According to the test, we learn the following EXCEPT ________.

A. the dropped food had more bacteria if it sat on the floor for longer.

B. the dropped food on the carpet had the least bacteria.

C. bacteria was impossible to transfer from laminate or tiled surfaces.

D. the wetter food was likely to pick up bacteria.

5. According to the article, the infection risk of the dropped does NOT depend on _____________.

A. how long the food sits on the floor

B. what the dropped food is

C. what the bacteria are

D. what the weather is like that day

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Many people go to school for an education. learn languages, history, geography, physics, chemistry and maths. Others go to school to learn a skill so that they can ________ . School ________ is very important and useful. Yet no one can learn everything from school. A teacher, no matter how much he ________ , cannot teach his students everything they ________ to know. The teacher's job is to show his students how to read and how to________ . So much more is to be learned ________ school by the students themselves.

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根据中文大意和英文提示词语,写出意思连贯、符合逻辑、不少于80词的回信。 所给英文提示词语仅供选用。请不要写出你的校名和姓名。

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Questions in Mike’s letter:

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_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

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