阅读下列短文,从每题所给的A、B、C、D 四个选项中,选出最佳选项.

Do you know electricity can change the way we taste food? Proving this fact is a revolutionary electric fork designed by Japanese researchers that can make any dish taste salty.

According to Hiromi Nakamura, a Post Doc Research Fellow at

Tokyo’s Meiji University, the technology can be very useful for people on

special diets. Patients with high blood pressure, for instance, can easily go

on a low-salt diet and still enjoy delicious food. And with the fork, there’s absolutely no risk of over-salting their food. Luckily, the voltage(电压) is so small that there is no risk of electrocution(触电) either.

The idea of adding electricity to food was first exposed as an experiment at the Computer

Human Interaction Conference in Austin, Texas, in 2012. Nakamura and her team connected a wire

to a 9-volt battery and passed it through a straw placed in a cup of sweet lemonade. Volunteers

reported that the charged lemonade tasted ‘blander’, because the electricity created the taste of salt.

Nakamura has improved the technology to be able to transfer an electric charge to food through

forks and chopsticks. “The metallic part of the fork is one electrode(电极), and the handle is the

other,” Nakamura explained. “When you take a piece of food with the fork and put it in your mouth,

you connect the circuit. When you remove the fork from your mouth, you disconnect the circuit. So

it actually works as a switch.”

Simon Klose, host of food program Munchies, who recently visited Nakamura to try out the

fork himself, called this form of ‘food hacking’ one of the greatest eating experiences he’d ever had.

“When I first heard of electric food, it sounded scary,” he said. He later continued to use a charged

fork to eat pieces of fried chicken, and found that the saltiness considerably increased as the electricity was connected.

Nakamura has been eating ‘electric’ food for the past three to four years in an attempt to

understand it better. “For me, ‘food hacking’ is about strengthening or weakening real food,” she

said. “It may seem like we’re cooking but we’re actually working on the human senses.”

1.The electric fork may benefit people who__________.

A. need to go on a diet B. have high blood pressure

C. prefer food free of salt D. show interest in tasty food

2. Paragraph 4 mainly tells us _________.

A. how the electric fork works

B. what makes the circuit connected

C. how the technology was improved

D. why the electric fork was invented

3. From the passage, we learn that the electric fork______.

A. creates virtual taste B. changes people’s diets

C. helps cure diseases D. replaces salt in cooking

阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

We all use money every day. It is essential because we can pay money for whatever we want.Money is recognized as banknotes and coins.

However,many years ago people couldn’ t go to the shop and buy what they wanted.They had to get what they wanted through the barter trade(实物交易).It was really difficult,for the barter often depended on coincidence of wants.For example,the seller of grain has to find a buyer who wants to buy grain and who also could offer something the seller wants to buy.And one more example,if a wheat farmer needs what a fruit farmer produces,a direct exchange is impossible because seasonal fruit would spoil before the grain harvest.The solution is to trade fruit for wheat indirectly through a third intermediate commodity(中间的商品),such as cattle,salt,shells,wine.However,commodity money had their disadvantages.For example,cattle,fur,precious stones couldn’ t be cut into smaller pieces and it was inconvenient to keep and transport them.Thus coins were invented.

The earliest known coins in the western world came from Lydia in about 650 B.C.Greek cities,the Great Persian Empire and Roman Empire quickly adopted the new useful technique of metal currency.And by the end of the 6th century,coinages were common throughout the region.However,coins as well as commodity money had many disadvantages.For instance,coins quickly show wear(磨损) and they usually have small value,so it’ s difficult to count large sums of coins.

At first,paper money was used in China in about 650 A.D.After then,it was used in Persia and Japan.In Europe,paper money was firstly produced in the Netherlands in the 16th century and in the USA in the 17th century.Paper money is worthless but symbolic.In other words,paper money is just a note.It has a purchasing power because the government announces it as money and citizens accept it universally.

1.The writer explains the difficulty of barter trade by_______.

A. telling stories B. using examples

C. presenting a theory D. making a comparison

2.What do we know about the early coins?

A. They usually had large value.

B. They were first used in Greece.

C. They still had many disadvantages.

D. People didn’ t like the metal currency.

3.Paper money was used earlier in_______.

A. Rome B. Greece

C. the USA D. the Netherlands

4.What is the passage mainly about?

A. Function of money. B. History of money.

C. Invention of money. D. Types of money.

根据短文内容,从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Empathy

Last year,researchers from the University of Michigan reported that empathy,the ability to understand other people,among college students had dropped sharply over the past 10 years. That could be because so many people have replaced face time with screen time,the researchers said. 1. .

Jennifer Freed,a co?director of a teen program,has another explanation.Turn on the TV,and you're showered with news and reality shows full of people fighting,competing,and generally treating one another with no respect. 2. .

There are good reasons not to follow those bad examples.Humans are socially related by nature. Having relationships with other people is an important part of being human — and having empathy is decisive to those relationships. Researchers have also found that empathetic teenagers are more likely to have high self?respect. 3. .Empathy is also an indication of a good leader.In fact,Freed says,many top companies report that empathy is one of the most important things they look for in new managers. 4. “Academics are important.But if you don't have emotional (情感的) intelligence,you won't be as successful in work or in your love life,” she says.

What's the best way to up your EQ (情商)? For starters,let down your guard and really listen to others. 5. .

To really develop empathy,you'd better volunteer at a nursing home or a hospital,join a club or a team that has a diverse membership,have a “sharing circle” with your family,or spend time caring for pets at an animal shelter.

A. Today,people spend more time alone and are less likely to join groups and clubs.

B. “One doesn't develop empathy by having a lot of opinions and doing a lot of talking,” Freed says.

C. Humans learn by example and most of the examples on it are anything but empathetic.

D. Empathy is a matter of learning how to understand someone else — both what they think and how they feel.

E. Good social skills, including empathy, are a kind of “emotional intelligence” that will help you succeed in many areas of life.

F. Besides,empathy can be a cure for loneliness,sadness,anxiety,and fear.

G. Everyone is different,and levels of empathy differ from person to person.

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