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If you bought some candy months ago but never ate it, how can you tell whether it’s still safe to eat? The easiest way is to check the “expiration date (保质期)” printed on the wrapper. If that date has already passed, you’re likely to throw the candy away. But is that really necessary?
According to a new report from the US Natural Resources Defense Council (NRDC), tons of food is wasted each year, largely because people don’t fully understand what expiration dates, or “use-by dates”, actually mean.
Food dating was introduced in 1970s because customers wanted more information about the things that they were eating. When they first showed up, use-by dates were only supposed to indicate freshness because producers wanted their products to be tasted in their best conditions.
But the truth is that these dates aren’t related to the risk of food poisoning or food-born illness, according to Time News. However, most customers misinterpreted use-by dates and related them to the safety of the food, and they still largely do now.
Eggs, for example, can still be eaten three to five weeks after purchase even though the use-by date is much earlier. When their use-by dates pass, strawberry juice may lose its red color and biscuits may lose their crunch（松脆的口感）, but they are not harmful.
“It’s a confusing subject, the difference between food quality and food safety,” said Jena Roberts, vice president of National Food Lab, a US food testing company. “Even in the food industry I have colleagues who get confused.”
This is why scientists are calling for a standard explanation to be printed following the use-by dates. “We want this to be clearly communicated so customers are not misinterpreting the date and contributing to a lot of waste,” said Dana Gunders, a staff scientist with the NRDC.
But this won’t be a mistake that is easy to correct since people have believed it for so long. Another problem is that the quality levels of different foods change differently-some are still eatable long after their use-by date while others are not.
As a result, food industry officials are now thinking of changing the use-by date to a date indicating when food is most likely to throw away.
1.According to the text, use-by date was first intended to ________.
A. reduce the waste of food
B. show whether the food was fresh
C. show the safety of food
D. give a warming of food poisoning
2.Which of following is TRUE?
A. Most customers understand what use-by date mean.
B. Biscuits can’t be eaten when not as crunchy as they were bought.
C. “ Use-by dates” have existed for more than 50 years.
D. Even after their use-by dates pass, some food are still safe to eat.
3.Scientists are calling for a standard explanation to be printed together with the use-by dates because________.
A. Most consumers often misunderstand use-by dates
B. use-by dates are not helpful or reliable
C. more consumers get worried about food safety
D. the quality level of different foods changes differently
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If you bought some candy months ago but never ate it, how can you tell whether it’s still safe to eat? The easiest way is to check the “expiration date (保质期)” printed on the wrapper. If that date has already passed, you’re likely to throw the candy away. But is that really necessary?
According to a new report from the US Natural Resources Defense Council (NRDC), tons of food is wasted each year, largely because people don’t fully understand what expiration dates, or use-by dates, actually mean.
Food dating was introduced in 1970s because customers wanted more information about the things that they were eating. When they first showed up, use-by dates were only supposed to indicate freshness because producers wanted their products to be tasted in their best conditions.
But the truth is that these dates arent related to the risk of food poisoning or food-born illness, according to Time News. However, most customers misinterpreted use-by dates and related them to the safety of the food, and they still largely do now.
Eggs, for example, can still be eaten three to five weeks after purchase even though the use-by date is much earlier. When their use-by dates pass, strawberry juice may lose its red color and biscuits may lose their crunch（松脆的口感）, but they are not harmful.
“It’s a confusing subject, the difference between food quality and food safety,” said Jena Roberts, vice president of National Food Lab, a US food testing company. “Even in the food industry I have colleagues who get confused.
This is why scientists are calling for a standard explanation to be printed following the use-by dates. We want this to be clearly communicated so customers are not misinterpreting the date and contributing to a lot of waste, said Dana Gunders, a staff scientist with the NRDC.
But this wont be a mistake that is easy to correct since people have believed it for so long. Another problem is that the quality levels of different foods change differently-some are still eatable long after their use-by date while others are not.
As a result, food industry officials are now thinking of changing the use-by date to a date indicating when food is most likely to throw away.
1.According to the text, use-by date 
was first intended to ________.
A. reduce the waste of food
B. show whether the food was fresh
C. show the safety of food
D. give a warming of food poisoning
2.Which of following is TRUE?
A. Most customers understand what use-by date mean.
B. Biscuits cant be eaten when not as crunchy as they were bought.
C. Use-by dates have existed for more than 50 years.
D. Even after their use-by dates pass,
some food are still safe to eat.
3.Scientists are calling for a standard explanation to be printed together with the use-by dates because________.
A. Most consumers often misunderstand use-by dates
B. use-by dates are not helpful or reliable
C. more consumers get worried about food safety
D. the quality level of different foods changes differently
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——You see how thin Ann is!
——She ______ gain some weight but she______ too little.
A. would; ate B. will ; eats
C. would ; has eaten D. will ; is eating
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Even if you’ve never been to Phoenix, you know this about the place: It’s hot. But that doesn't stop hikers from attempting the 1.3-mile trek (跋涉) to the top of the city’s famed Camelback Mountain. Signs warn that the trail is “extremely difficult”. If you continue, a posted checklist suggests at least a liter of water per person. And if you keep climbing, another sign farther up declares; “If you’re halfway through your water turn around!”
Unfortunately, many people do not pay attention to the warnings. Fortunately, Scott Cullymore does. The 53-year-old man hikes up and down Camelback a couple of times a day giving out cold bottles of water to worn-out hikers. He has helped so many hikers that he has earned a heavenly nickname: the Water Angel. I’d like a more manly name, but, you know, he told azfamily, com.
Cullymore was on Camelback Mountain one day in 2015 when a British tourist died after being lost for nearly six hours in the July heat. That experience inspired him to start helping people caught unaware by Arizona’s unforgiving version of Mother Nature. “They underestimate the mountain, and they overestimate what they can do, and they get themselves in trouble,” he told the Arizona Republic. If a hiker has a red face and is not sweating anymore, Cullymore reaches into his insulated (隔热的) backpack, pulls out a frosty bottle, and hands it to the person. “It’s misleading that we’re in the middle of the city. You can die up here, and no one would know.”
One hiker who received Cullymore’s water agrees. “You think you know the heat, but then you get out here in the desert and it surrounds you like a blanket,” he said, pointing to Cullymore, “but we are lucky, we run into this good man here.” And with that, the Water Angel goes in search of another hiker in need.
1.What is the purpose of the signs along the hike way?
A.To show the trek is difficult. B.To warn hikers to take enough water.
C.To frighten people to give up. D.To avoid hikers getting lost.
2.What does Scott Cullymone think of his nickname?
A.It’s womanish. B.It’s manly.
C.It’s ironic, D.It’s appropriate.
3.Who will Scott offer his help to?
A.Anybody he meets. B.Those in the middle of the trek.
C.Anyone in need of water. D.Those who sweat a lot.
4.What can be the best title of this text?
A.A Desert-Like Mountain B.Fighting against Heat
C.Necessities for Hiking D.Water Angel
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If you listen to me, you _____ have some candies, my son.
A. should B. shall C. must D. may
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If you listen to me, you ____have some candies, Tommy.
A. are able to B. shall C. must D. need
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“Dear, if you listen to me, you ______ have some candies as a reward,” the woman told her little son.
| A．shall | B．do | C．should | D．must |
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“Dear, if you listen to me, you ______ have some candies as a reward,” the woman told her little son.
A. shall B. do C. should D. must
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---- How often do you go to the concert ?
---- ______________,but at least once a month.
A．It depends B．Have no idea.
C．As usual D．Generally speaking.
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Some people think if you are happy, you are blind to reality. But when we research it, happiness actually ______every single business and educational outcome for the brain. How did we ______ this? Why do we have these social misunderstandings about happiness? Because we assumed you were ______.
When we study people, scientists are often interested in what the average is.
Many people think happiness is genetic. That's only half the story, because the average person does not fight their ______. When we stop studying the average and begin ______ positive outliers(离群值) -- people who are above average for a positive aspect like optimism or intelligence -- a ______ different picture appears. Our daily decisions and habits have a huge impact upon both our levels of happiness and ______.
______, happiness is a choice. It is a choice about where your single processor brain will devote its finite resources as you process the world. If you scan for the ______ first, your brain really has no resources left over to see the things you are grateful for or the meaning embedded（嵌入） in your work. But if you scan the world for the positive, you start to acquire an ______advantage.
I wrote the cover story for the Harvard Business Review magazine on "Happiness Leads to Profits." Based on my article called "Positive Intelligence" and my research in The Happiness Advantage, I ______ our researched conclusion: the single greatest advantage in the modern economy is a ______ and busy workforce.
A decade of research in the business world ______ that happiness raises nearly every business and educational ______: increasing sales by 37%， productivity by 31%， and ______ on tasks by 19%， as well as a number of health and quality-of-life improvements.
1.A. rises B. arises C. raises D. realizes
2.A. think B. miss C. know D. understand
3.A. usual B. single C. unique D. average
4.A. bodies B. faces C. genes D. fates
5.A. researching B. discovering C. finding D. observing
6.A. mildly B. hardly C. crazily D. wildly
7.A. interest B. success C. safety D. failure
8.A. Scientifically B. Fortunately C. Gradually D. Strangely
9.A. active B. passive C. negative D. positive
10.A. interesting B. embarrassing C. annoying D. amazing
11.A. Talked B. summarized C. thought D. underlined
12.A. silly B. funny C. common D. happy
13.A. means B. proves C. wishes D. hopes
14.A. outcome B. answer C. cause D. reality
15.A. behavior B. mistake C. accuracy D. possession
was first intended to ________.