1 . We humans love to stare into our smart devices. We gaze for hours—about 10 hours and 39 minutes a day—at our computers, smartphones, tablets and televisions. Is all this staring bad for us?   It might be, mainly because as we stare at our devices we are exposing ourselves to blue light.

Blue light is a type of electromagnetic radiation with a very short wavelength that produces a high amount of energy. While it’s true that light can damage our eyes under certain circumstances, there’s no scientific evidence suggesting that blue light is harmful to our eyes. But many people still think it is, which is why blue-light-blocking glasses are so popular. So, do the glasses work?

“Everyone is very concerned that blue light may be causing damage to the eye, but there’s no evidence that it may be causing serious damage, ” Dr. Rahul Khurana, a clinical spokesman, told Business Insider.

Blue light exposure is nothing new. In fact, the sun is the largest source of blue light. Moreover, blue light is also present in LED light. But if blue light isn’t harmful, then why are we constantly rubbing our eyes when we’re looking at our screens?   The answer is eyestrain (眼疲劳). More than 60 percent of people experience eye problems associated with digital eyestrain. And blue light, it seems isn’t the cause. Instead, our eyes are so strained because most of us blink less when we stare at our digital devices. So, if eyestrain is the real issue, blue-light-blocking glasses are probably of little use.

1. What do we know about blue light?

A．It has the shortest wavelength.

B．It’s a kind of nuclear radiation.

C．It consumes a great deal of energy.

D．It may come from electronic devices.

2. What causes the popularity of blue-light-blocking glasses?

A．Evidence of their benefits to eyes.

B．Widespread use of smart devices.

C．Belief in blue light’s harmful effect.

D．Scientific understanding of blue light.

3. What can be inferred from Paragraph 4?

A．Rubbing eyes makes people strained.

B．Blue light exposure is hardly avoidable.

C．Blue light may connect with tired eyes.

D．Eye problems are not easy to deal with.

4. According to the text, wearing blue-light-blocking glasses may be______.

A．useless	B．harmful
C．tiring	D．beneficial

2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Sending gifts varies greatly from country to country. In Australia, Canada, the United States    1     European countries, sending gifts     2     (be) rarely expected. While seen as a nice gesture, it is more important to avoid    3     (give) highly personal gifts such as clothing. When visiting the home of a colleague from one of these    4     (country), it is normally appropriate to bring a gift to the hostess.

In America, expensive gifts are    5     (definite) out. A good choice is to take the deserving person to dinner, or to an entertainment or a sporting event.     6    the contrary, gift giving is a traditional custom in Japan. In Japan the proper gift is thought    7     (express) the giver’s true friendship, gratitude and respect far    8    (well) than words can. So if you plan to visit Japan or to have any Japanese visit you here, be prepared.

Australia is known for     9    (it) friendliness and informality. So modest gifts, such as a diary, a paperweight, or a coffee cup might be presented to a friend. But when visiting a German home, gifts    10     reflect your home country are popular, and you might want to bring small gifts for the children of the family you are visiting.

5 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The most important rule of the road concerns which side to drive on. A large number of accidents in the world happen for this reason, with more and more people     1     (choose) car hire as the way to drive in a foreign country. Famous actor Matthew Broderick     2     (catch) up in a bad collision when he rented     3     vehicle in Ireland because he forgot that they drive on the opposite side of the road.

Most areas of the world which     4     (previous) were British colonies still drive on the left hand side of the road, Australia, India, and South Africa     5     (include). Most European countries drive on the right hand side apart     6     Cyprus, Ireland, Malta and the United Kingdom. Guyana is the only country in South America     7     drives on the left.

Generally speaking, about two thirds of the countries in the world drive on the right such as, the USA, China and Russia. Canada used to drive on the left but changed to the right to make border crossings with the USA more     8     (manage).

The     9     (explain) for driving on different sides of the road is historical. British horse riders used to ride on the left hand side of the road, thus keeping their right arm free to offer greetings to     10     (passer-by). But in the USA Teamsters decided to start driving on the right so that they could see the passing wheels of other wagons.

6 . A simple project to help a family in need stopped Luck Mickelson in his tracks. In 2012, he and his family were inspired to build and donate a bunk bed, one bed on top of the other, after learning there were local children who slept on the floor. Shocked to discover how widespread this need was in his community, Mickelson founded Sleep in Heavenly Peace, a nonprofit that builds and delivers beds to children in need.

Born and raised in Idaho, Mickelson, now 41, had a thriving career. He coached his kids' sports teams and fished in the nearby river. But when he met children who were sleeping on the floor, his peaceful life changed course.

Using safety guidelines and his daughter’s bunk bed as a model, Mickelson started buying wood and supplies to build beds with his own money. He recruited friends and family members to help around the holidays. As the word spread, interest and involvement from his and other communities flooded-along with Mickelson's bunk bed output. "That first project, we built 11 bunk beds in my garage, "he said. "The next year, we did 15. Then it doubled every year. In 2017, we built 612 bunk beds.”

With the motto "No kid sleeps on the floor in our town”, the nonprofit and its more than 65 branches have built and delivered more than 1,500 free beds to children across America. But along with the rapid growth, Mickelson was faced with a tough choice: advancing his career or his nonprofit. He chose the latter and went from making "great money to zero money". He's never looked back. "I found that the need I have isn't financial, "he said. “The need I have is seeing the joy on kids’ faces, knowing that I can make a difference.”

1. Why did Mickelson set up Sleep in Heavenly Peace?

A．To get more donations.	B．To make a big fortune.
C．To inspire his community.	D．To donate beds to kids in need.

2. What do we know about Luke Mickelson?

A．He originally had a very good career.	B．He changed his career from time to time.
C．He used to sleep on the floor when he was a kid.	D．He had his own fish farm.

3. How did other people react to Mickelson’s project?

A．They showed little interest in it.

B．They were supportive and involved in it.

C．They were doubtful about the safety of the bunk bed.

D．They volunteered to buy beds with their own money.

4. What is Mickelson's attitude to the nonprofit?

A．Ambiguous

B．Defensive.

C．Positive

D．Cautious

7 . More than a billion people around the world have smart phones, almost all of which come with some kind of navigation app such as Apple Maps or Amap. This raises the age-old question we meet with any technology: What abilities is our brain losing to these apps? But also, importantly: What abilities are we gaining?

Talking with people who are good at finding their way around or good at using paper maps, I often hear a lot of annoyance with digital maps. North/south direction gets messed up, and you can see only a small section at a time. I can really understand that it may be quite disturbing for the already skilled to be limited to a small phone screen.

But consider what digital navigation aids have meant for someone like me. Although being a frequent traveler, I'm so terrible at finding my way that I still use Apple Maps almost every day in the small town where I have lived for many years.

In many developed nations, street names and house numbers can be meaningful, and instructions such as go north for three blocks and──then west’’ make sense to those familiar with these rules. In Istanbul, however, where I grew up, none of those hold true. For one thing, the locals seldom use street names. Besides, the city is full of winding and ancient alleys(小巷) that cross with newer avenues at many angles. In such places, you’d better turn to the locals. In the countryside, however, there is often nobody outside to ask. In fact, along came Apple Maps, like a fairy grandmother whispering directions in my ear. Since then, I travel with a lot more confidence, and my world has opened up.

Which brings me back to my original question: While we often lose some skills after depending on new technology, this new equipment may also allow us to gain new abilities. Maybe when technology closes a door, we should also look for the doors it opens.

1. Why do people who are skilled at reading paper maps feel upset?

A．They are interested in reading paper maps,

B．They don’t know how to use navigation, apps.

C．They are limited to a single smart phone app.

D．They are confused by digital maps’ direction.

2. According to the text, which is the best way to find the destination in Istanbul?

A．Asking local people the way.

B．Following the navigation app.

C．Getting familiar with the city rules.

D．Looking for street names and house numbers.

3. What’s the author’s attitude towards the navigation apps?

A．Cautious	B．Ambiguous
C．Favorable	D．Critical

4. What could be the best title of the passage?

A．Benefits of Navigation Apps

B．Disadvantages of Navigation Apps

C．My World Opens Up by New Technology

D．Have Navigation Apps Worsened Our Brain?

8 . I was driving home. A car, driving at high speed and trying to overtake, crashed into a pickup truck. And five other cars also______in front of me. I narrowly______and pulled over. Immediately, I ran to a car which was upside down. I got someone to help and we got a（n）______woman and a large, unconscious man, both upside down, out of the______. I then went to the five other cars to______if anyone else was hurt badly______, no one else was in serious condition. It all took just a few minutes.

At the same time, the traffic had stopped. I looked over and______a group of 12 people, out of their cars, standing in a circle about 15 feet away from a young man, who was______still on the pavement. I asked them what had happened. They said the kind young man had got out of his car to cross the road and______when a car drove along the inside lane（车道）, very fast, to get around the______traffic. Unfortunately, the man was______by it. Many people said he was______; several had checked. But a feeling inside me said, “Can they be certain he is dead？”

He was badly injured, but I checked again and again, and felt a very______heart beat. I______pushed his head upwards. He then coughed, and started taking rapid, shallow breaths. By then, the ambulances had______. When they______, I left the scene and walked back to my car.

Due to the excellent doctors and______of nurses, the young man did______. He was released from the hospital after many months and his______was covered by all the news stations. I smiled to myself and felt very______to be at the right place at the right time, knowing a young man had his whole life in front of me.

1.

A．exploded

B．crashed

C．sped

D．disappeared

2.

A．escaped

B．lost

C．returned

D．failed

3.

A．rich

B．sick

C．injured

D．single

4.

A．circle

B．way

C．area

D．car

5.

A．check

B．report

C．explore

D．tell

6.

A．Surprisingly

B．Obviously

C．Fortunately

D．Honestly

7.

A．met

B．chose

C．led

D．saw

8.

A．sitting

B．lying

C．standing

D．holding

9.

A．greet

B．help

C．serve

D．look

10.

A．light

B．local

C．oncoming

D．heavy

11.

A．stopped

B．attacked

C．hit

D．pushed

12.

A．dead

B．abnormal

C．ill

D．painful

13.

A．steady

B．weak

C．rapid

D．wild

14.

A．quickly

B．patiently

C．hopefully

D．cautiously

15.

A．arrived

B．stayed

C．followed

D．waited

16.

A．got across

B．faded away

C．took over

D．gave away

17.

A．praise

B．care

C．trust

D．encouragement

18.

A．grow

B．remember

C．survive

D．change

19.

A．kindness

B．politeness

C．calmness

D．friendliness

20.

A．confident

B．comfortable

C．different

D．happy

9 . In celebration of Women’s History Month, here are a few of the millions of women that have broken all conventional rules to make a difference in the world.

Susan B. Anthony

Born February 15, 1820, Susan B. Anthony was a women’s rights activist in the US. She spent many years campaigning for women’s right to vote. Anthony was also against slavery, helping support the passage of the Civil War Amendments. She also lent her voice to the battle for equal pay and educational opportunities for all.

Anne Frank

Anne Frank grew up in a happy family. However, things changed when Hitler came to power. Anne and her family were forced to hide inside a tiny house, where the young girl recorded her family’s fears and struggles. Even after all these years, her journal, Anne Frank: The Diary of a Young Girl, continues to be popular with people across all ages and cultures.

Aung San Sun Kyi

Determined to bring democracy (民主）to Myanmar, Aung San Suu Kyi founded the National League for Democracy (NLD). Suu Kyi’s open displeasure with the government resulted in her spending much of the time between 1989 and 2010 in prison or under house arrest. In 1991，Suu Kyi received the Nobel Peace Prize. In 2015, five years after she had been freed, Suu Kyi’s NLD Party won a great victory in the general elections.

Malala Yousafzai

Malala Yousafzai was born to a Pakistani educator and poet. When the Taliban declared that girls should not be educated, the world’s youngest Nobel Prize winner decided to challenge these unfair policies (政策). On October 9, 2012, she was shot and badly injured. Since recovering, Malala continues her fight for girls’ education. Her bravery is encouraging young people all over the world to stand up for what they believe is right.

1. Who made a great contribution to women’s right to vote?

A．Anne Frank.	B．Malala Yousafzai.
C．Susan B. Anthony.	D．Aung San Suu Kyi.

2. Why was Aung San Suu Kyi put into prison?

A．She refused to leave Myanmar.

B．She demanded that the democrats be freed.

C．She voiced dissatisfaction with the government.

D．She blamed the government for its economic policy.

3. Which of the following can be used to describe the women mentioned in the text?

A．Brave and inspiring.	B．Reliable and devoted.
C．Honest and responsible.	D．Considerate and optimistic.