根據(jù)短文內(nèi)容，從短文后的選項中選出能填入空白處的最佳選項。選項中有兩項為多余選項。

Testing the five-second rule

You may have seen a friend drop food on the floor, pick it up, and eat it, while declaring, “Five-second rule! ” It’s said that food dropped on the floor for five seconds or less is still likely to be clean. 1. .

Students at Britain’s Aston University, led by microbiology professor Anthony Hilton, tested the rule and found it to have some scientific basis. The study’s results show that food dropped for five seconds is less likely to contain bacteria than if it sits there for longer, according to Hilton.

The students also found that the type of flooring where the dropped food lands has an effect. 2. Bacteria are most likely to transfer from tiled (鋪瓷磚的) surfaces to moist food when the food has stood there for more than five seconds.

3. Therefore, consumers should still be cautious. “However, the findings of this study will bring some light relief to those who have been employing the five-second rule for years, despite a general consensus that it is purely a myth,” professor Hilton said in a statement.

The research team at Aston also surveyed 500 people to find out who employs the five-second rule. Of the people surveyed, 87% said they would eat food dropped on the floor, or have done so in the past. 4. “Our study showed people are also more likely to follow the five-second rule, which our research has shown to be much more than an old wives’ tale,” Hilton says.

Still, scientists say you should be careful about eating food dropped on the floor, especially if you have doubts about the cleanliness of the surface. 5.

A. But is that true?

B. Carpeted surfaces posed the lowest risk.

C. Of those people, the majority were women.

D. We’ve just lost our last excuse to eat food off the floor.

E. Usually people recover from the infection in five to ten days.

F. There is still a risk of infection if certain bacteria are present on the dropped surface.

G. A biologist points out that one in six Americans get sick from food poisoning every year.

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Father’s Day

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However, the idea for creating a day for children to honor their fathers began in Spokane, Washington. A woman by the name of Sonora Smart Dodd thought of the idea for Father’s Day while listening to a Mother’s Day sermon in 1909. Having been raised by her father, Henry Jackson Smart, after her mother died, Sonora wanted her father to know how special he was to her. It was her father that made all the parental sacrifices and was, in the eyes of his daughter, a selfless and loving man. Sonora’s father was born in June, so she chose to hold the first Father’s Day celebration in Spikane, Washington on the 19th of June, 1910.

In 1924 President Calvin Coolidge declared the third Sunday in June as Father’s Day. Roses are the Father’s Day flowers: red to be worn for a living father and white if the father has died.

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1.At first, Father’s Day was fixed on June 19th because ______.

A. Sonora honored her father on her father’s birthday

B. Sonora’s birthday was June 19

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D. her mother died on June 19

2.How many years has passed before Father’s Day became an official day since the father’s day was celebrated?

A. 4 B. 10 C. 14 D. 24

3.According to the passage, on Father’s Day, ______.

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B. only daughters wear red flowers to honor their fathers

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There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

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短文改錯

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增加：在缺詞處加一個漏字符號(∧)，并在其下面寫出該加的詞;

刪除：把多余的詞用斜線(﹨)劃掉；

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