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.

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：2015-2016學(xué)年寧夏高一下期末英語卷（解析版） 題型：閱讀理解

Father’s Day

The United States is one of the few countries in the world that has an official day on which fathers are honored by their children. On the third Sunday in June, fathers all across the United States are given presents, treated to dinner or otherwise made to feel special.

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.

When children can’t visit their fathers or take them out to dinner, they send a greeting card. Traditionally, fathers prefer greeting cards that are not too sentimental. Most greeting cards are too special so fathers laugh when they open them. Some give heartfelt thanks for being there whenever the child needed Dad.

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

C. it was decided by the president at that time

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, ______.

A. people will wear the same flowers to honor their fathers

B. only daughters wear red flowers to honor their fathers

C. children must go home to honor their fathers

D. fathers are often honored in different ways

4.According to the passage, we can infer that Henry Jackson Smart ______.

A. was very kind to anyone

B. did a lot for his daughter

C. was the first father honored in 1924

D. always helped others by giving money

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年黑龍江雙鴨山一中高二6月考英語卷（解析版） 題型：閱讀理解

Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.

Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside，but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses (球場) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

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.

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.

1. Which of the following is the author most probably in favor of?

A. Cycling around a lake.

B. Motor racing in the desert.

C. Playing basketball in a gym.

D. Swimming in a sports center.

2. What do we know about golf from the passage?

A. It is popular in Portugal and Spain.

B. It causes water shortages around the world.

C. It pollutes the earth with chemicals and wastes.

D. It needs water and other sources to keep its courses green.

3.The author uses power walking as an example mainly because ___________.

A. it is an outdoor sport

B. it improves our health

C. it uses fewer resources

D. it is recommended by experts

4.The author writes the passage to _______.

A. show us the function of major sports

B. encourage us to go in for green sports

C. discuss the major influence of popular sports

D. introduce different types of environment-friendly sports

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年貴州都勻一中高一下第一次月考英語卷（解析版） 題型：完形填空

完形填空，閱讀下面短文, 從短文后各題所給的四個選項(A、B、C和D)中,選出可以填入空白處的最佳選項, 并在答題卡上將該項涂黑。

Dad was not only my best friend, but my compass (指南針). While he was alive, he _________ me with his actions and advice. He taught me one important _________ : “Believe in yourself. ” If there was one phrase my dad _________ liked to hear, it was “I can’t.” He never got to finish high school and _________ two jobs to support his large family, _________ he never complained. Through education and years of hard work, my dad became an excellent journalist.

When I was in high school, I had a _________ time with math. He tried to help me, but I _________ struggled. So my math teacher suggested I meet with him at 7:00 each morning before school for _________ help. I told Dad, “That’s _________ ! I’m tired! I can’t do that!” He replied, “You’re doing it. I’ll send you to school. ” Every morning at 6:45, we’d leave the _________ . Despite (盡管) working 12 hours every day, Dad never once _________ driving me to school.

After months of _________ , I was facing the final exam. I was so _________ . On the day of the final, my dad hugged me and said, “Luke, _________ yourself. You can do it. ” His words made me realize I needed to trust in my _________and in the hours of work I’d _________. When I got my _________ proudly, the first person I called was my father. He cried, “Yes! You deserved it!”

Even now, whenever I _________ that a task is too much for me, I think back to that exam. No matter how _________ something is, if you’re willing to work, you can succeed. I’m forever _________ to Dad for that lesson.

1.A. understood B. forgave C. guided D. impressed

2.A. history B. lesson C. skill D. language

3.A. always B. almost C. ever D. never

4.A. took B. lost C. left D. finished

5.A. so B. or C. but D. and

6.A. good B. free C. terrible D. short

7.A. still B. nearly C. hardly D. probably

8.A. real B. practical C. immediate D. extra

9.A. wonderful B. crazy C. expensive D. necessary

10.A. house B. school C. office D. farm

11.A. suggested B. risked C. enjoyed D. missed

12.A. meeting B. testing C. learning D. interviewing

13.A. excited B. nervous C. happy D. shocked

14.A. stand for B. hold back C. believe in D. look after

15.A. teacher B. luck C. time D. ability

16.A. wasted B. ignored C. picked up D. put in

17.A. answer B. grade C. pay D. gift

18.A. hope B. forget C. worry D. promise

19.A. different B. important C. hard D. interesting

20.A. grateful B. sorry C. polite D. useful

查看答案和解析>>

科目：高中英語 來源：2015-2016學(xué)年貴州都勻一中高二下開學(xué)考英語試卷（解析版） 題型：短文改錯

短文改錯

假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增刪或修改。

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；

修改：在錯的詞下面畫一條橫線，并在該詞下面寫出修改后的詞。

注意：1. 每處錯誤及其修改均僅限一詞；

2. 只允許修改10處，多者（從11處起）不計分。

As we all know, travelling can be an excited experience. Let me give you some advices that you have to pay attention. You can find out more about your destination by surf the Internet before you set out. You needn’t take too many cash. Since it can be very convenient to pay in cash, using cheques is much more reliable. In additional, it will be wise of you to take an umbrella in case of it should rain. And if you are to travel abroad, you’d better understand the culture and diversity. Keep this in mind that being polite in foreign countries can help you had a wonderful trip.

查看答案和解析>>

科目：高中英語 來源：2016年全國普通高等學(xué)校招生統(tǒng)一考試英語（北京卷精編版） 題型：書面表達

假設(shè)你是紅星中學(xué)高三學(xué)生李華。你的英國朋友Jim 在給你的郵件中提到他對中國歷史很感興趣，并請你介紹一位你喜歡的中國歷史人物。請你給Jim回信，內(nèi)容包括：

1. 該人物是誰；

2. 該人物的主要貢獻；

3. 該人物對你的影響。

注意：

1. 詞數(shù)不少于50；

2. 開頭和結(jié)尾已給出，不計入總詞數(shù)。

Dear Jim,

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

Yours,

Li Hua

查看答案和解析>>

科目：高中英語 來源：2016年全國普通高等學(xué)校招生統(tǒng)一考試英語（北京卷精編版） 題型：單項填空

I am not afraid of tomorrow, ________ I have seen yesterday and I love today.

A. so B. and C. for D. but

查看答案和解析>>

科目：高中英語 來源：2016年全國普通高等學(xué)校招生統(tǒng)一考試英語（新課標(biāo)卷3卷精編版） 題型：語法填空

閱讀下面材料，在空白處填入適當(dāng)?shù)膬?nèi)容（1個單詞）或括號內(nèi)單詞的正確形式。

In much of Asia, especially the so-called ＂rice bowl＂ cultures of China, Japan, Korea, 1. Vietnam, food is usually eaten with chopsticks.

Chopsticks are usually two long, thin pieces of wood or bamboo. They can also be made of plastic, animal bone or metal. Sometimes chopsticks are quite artistic. Truly elegant chopsticks might 2. (make) of gold and silver with Chinese characters. Skilled workers also combine various hardwoods and metal 3. (create) special designs.

The Chinese have used chopsticks for five thousand years. People probably cooked their food in large pots, 4. (use) twigs(樹枝)to remove it. Over time, 5. the population grew, people began cutting food into small pieces so it would cook more quickly.

Food in small pieces could be eaten easily with twigs which 6. (gradual) turned into chopsticks.

Some people think that the great Chinese scholar Confucius, 7. lived from roughly 551 to 479 B.C., influenced the 8. (develop) of chopsticks. Confucius believed knives would remind people of killings and 9. (be) too violent for use at the table.

Chopsticks are not used everywhere in Asia. In India, for example, most people traditionally eat 10. their hands.

查看答案和解析>>

科目：高中英語 來源：2016年全國普通高等學(xué)校招生統(tǒng)一考試英語（江蘇卷精編版） 題型：單項填空

_________some people are motivated by a need for success, others are motivated by a fear of failure.

A. Because B. If

C. Unless D. While

查看答案和解析>>

同步練習(xí)冊答案