1 . Bricks are one of the oldest known building materials, dating back thousands of years. But researchers at Washington University in St. Louis have found a new use for bricks: as energy storage units. A team of engineers and chemists have found a way to transform an ordinary house brick into a pseudo-battery — allowing it to conduct and store electricity. The bricks are powerful enough to illuminate（点亮）an LED light bulb and cost only about $ 3 to make.
“I love the idea of adding value to things that are inexpensive, things that are affordable, things that we kind of take for granted, ”said Julio D’Arcy, an assistant professor of chemistry at Washington University and one of the researchers on this project.
The brick battery relies on the reddish pigment（色素）known as iron oxide, or rust, that gives red bricks their color. The scientists pumped the bricks with several gases that react with iron oxide to produce a network of plastic fibers. These microscopic fibers coat the empty spaces inside the bricks — and conduct electricity.
“What we’re trying to do is: we’re trying to make specialized plastics that are only used on the nano（纳米）scale — where we use very little of the plastic, and we can actually insert that plastic inside construction materials. ” The study is in the journal Nature Communications.
In the future, D’Arcy says, a brick wall could potentially serve a double purpose: providing structural support and storing electricity generated from renewable energy sources, such as solar panels.
The technology is still at least a few years away from being ready for the commercial market. And right now the energy storage capacity of the bricks is still pretty low — about 1 percent of a lithium battery. But the team is now testing ways to improve brick performance — because it looks like you can teach an old brick new tricks.
1. What appeals to Julio D’Arcy listing bricks as their subjects?| A．Their low expense. | B．Their common existence. |
| C．Their additional value. | D．Their internal composition. |
| A．Pump the brick with gases. |
| B．Color the brick red. |
| C．Produce microscopic fibers. |
| D．Cover its inner vacancy with microscopic fibers. |
| A．Construction materials possessing low energy storage capacity. |
| B．Construction materials generating renewable energy resources. |
| C．Construction materials used for electricity storage. |
| D．Construction materials with built-in common plastic. |
| A．Skeptical. | B．Objective. |
| C．Conservative. | D．Controversial. |
2 . I once heard this tale in India, where it is told as if true—though any naturalist would know it couldn’t be. The country is India. A colonial official and his wife are giving a large dinner party. They invite army officers and their wives, and a visiting American naturalist.
A spirited discussion springs up between a young girl who says women are no longer the jumping on a chair at the sight of a mouse and an army officer who disagrees and says, “A woman’s reaction in any crisis is to scream. And a man has more control than a woman.”
The American scientist does not join in the argument but sits and watches the faces of the other guests. As he stares, he sees a slight strange expression come over the face of the hostess. She gestures to the servant standing behind her chair and whispers to him. The servant’s eyes widen. He turns quickly and leaves the room. Of the guests, none except the American notices this or sees the servant place a bowl of milk on the balcony just outside the open glass doors.
In India, milk in a bowl means only one thing: bait (诱饵) for a snake. The American understands there must be a snake in the room. His eyes move across the room but see nothing. He realizes the snake can only be in one place — under the table.
His first reaction is to jump back and warn the others. But he knows any sudden movement will frighten the animal into striking. He speaks quickly, the tone of his voice so arresting that it quietens everyone. “I want to know what control everyone here has. I will count three hundred—that’s five minutes — and not one of you is to move a muscle. Ready!”
The 20 people sit like stone images while he counts. He is saying, “—two hundred and eighty—” When out of the corner of his eyes, he sees the snake make for the bowl of milk. Four or five screams ring out as he jumps to close the balcony doors.
“There is your proof!” the host shouts. “A man has just shown us perfect self-control.”
“Just a minute,” the American says, turning to his hostess, “How did you know that snake was in the room?” With a faint smile coming across her face she replies: “Because it was lying across my foot.”
1. What can we conclude from the passage?| A．Women are afraid of mice. |
| B．The army officer’s opinion is wrong. |
| C．The American suggests playing a game for entertainment. |
| D．The hostess has had previous experience catching snakes. |
a. The American’s eyes sweep the room but he sees nothing.
b. The American suggests the guests playing a game.
c. Following the instructions, the servant puts out some milk.
d. The hostess is staring ahead, a slight strange look appearing.
e. The American shuts the balcony doors safely, and several screams are let out.
f. The snake edges its way to the bowl of milk.
| A．d,c,a,b,f,e | B．a,b,c,e,f,d |
| C．d,f,a,b,c,c | D．f,e,c,a,d,b |
| A．The American. | B．The army officer. |
| C．The girl. | D．The hostess. |
| A．A Heated Argument | B．A Striking Dinner Party |
| C．An Unbelievable Story | D．A Smart Hostess |
EXCURSION DETAILS $109.99 / Adult (ages 13 and over) $79.99 / Child (ages 8 - 12) *Prices may vary with seasons This adventure begins with a motorcoach ride along the Klondike Highway, paralleling the route used by the explorers during the 1898 Klondike Gold Rush. You’ll ascend to the 3,290-foot Klondike Summit, where you can photograph majestic mountains and waterfalls.  Your ride continues as you travel north to the famous Yukon Suspension Bridge. Feel the thrilling sensation of a swaying walkway 65 feet above the churning rapids of the Tutshi River. Finally walk through the museum-quality displays demonstrating the area’s unique history. By now you’ve worked up an appetite, and the hearty salmon buffet at the Liarsville Trail Camp is sure to tame even the hungriest beast. Savor wild Alaskan salmon grilled over an open alder wood fire, a variety of salads, cornbread and dessert. After your meal, you may return or be dropped off in Skagway for shopping. Guest Reviews (4) Palp from Vancouver ★★★☆☆ Great one hour stop at the Suspension Bridge. The salmon bake in Liarsville was the best part! It was a buffet of UNLIMITED salmon that was being freshly cooked over an open fire. Overall good excursion, just a little too expensive for what it is. Dragon from Los Angles ★★★★☆ Did this on May 1, 2019. Our guide, Glenn, was very enthusiastic and knowledgeable, keeping us entertained all the way by making jokes and explaining the history of the landmarks. There were only 12 people, so we all had window seats!! The views were GREAT! Took lots of pics. Plutocrat from Edmonton ★★★★★ Enjoyed the drive, enjoyed the fees and enjoyed Liarsville, where the food was AMAZING. Can't believe how much we enjoyed walking across the suspension bridge. Rod from Regina★★☆☆☆ “To the Summit” gives the impression you are going to the big summit. This was not the case. The summit in question was just a small hill. The views at the suspension bridge are ok but not incredible. The lunch at Liarsville was not bad, though, and that stop was best of the day. |
1. Which of the following shows the correct touring order in the excursion?
| A．Skagway →Suspension Bridge → Klondike Gold Rush |
| B．Liarsville Trail Camp →Klondike Highway→Tutshi River |
| C．Klondike Summit →Suspension Bridge → Liarsville Trail Camp |
| D．Klondike Gold Rush →Liarsville Trail Camp → Suspension Bridge |
| A．Palp thought the price for the excursion is reasonable |
| B．Dragon thought highly of his humorous and learned guide |
| C．Plutocrat was not content with the food in Liarsville |
| D．Rod felt the view around the suspension bridge was great |
4 . With the click of a button, Amanda Eshelman, a 13-year- old girl with hearing loss, regained the ability to hear the world around her.
"Hi, baby, " her mom, who seated herself next to her at St.Louis Children’s Hospital, said before they both burst into tears.
Amanda has been deaf in her left ear from a young age and has been progressively losing hearing in her right ear since she started middle school two years ago.A hearing aid helped her for a while, but it slowly became less and less effective.
A specialist in St.Louis Children's Hospital thought a cochlear implant could improve her hearing—but there was no guarantee.Her parents allowed Amanda to decide for herself.She wanted to go for it.
"They said she hadn’t heard on this side for at least 10 years； we didn't know if it would work, and if her brain would be able to recognize these signals," Amanda’s mom, Betsy Eshelman, told Today.“So we tried not to get our hope up as we walked in.”
In mid-November, Amanda had the surgery and two weeks later, the system was turned on.When the sounds returned，Amanda covered her mouth with her hands in astonishment and then shed tears of joy.
“I like it, ” Amanda said in the video.“It’s a lot better than I thought it was going to be.”
Amanda noted the whirr of the fan system and the buzz of the lights overhead.“I didn’t know the lights make noise.”she said.
Now, Amanda is able to hear all sorts of sounds she has been missing out for years—especially at home.
"It's been great，" Betsy said."She made the comment that she didn’t realize how loud we all were! She didn’t realize how quiet her world had become.”
1. What is the correct order for the events in the story about Amanda?①Amanda received a cochlear implant.
②Amanda lost hearing in her right ear.
③Amanda lost hearing in her left ear.
④Amanda regained her hearing.
⑤Amanda started middle school.
| A．③②⑤①④ | B．③⑤②①④ |
| C．⑤③②①④ | D．⑤①③②④ |
| A．Amanda wouldn't like the cochlear implant |
| B．a cochlear implant wouldn’t help |
| C．a cochlear implant would reduce hearing |
| D．they couldn't afford a cochlear implant |
| A．nervous | B．disappointed |
| C．surprised | D．delighted |
| A．a cochlear implant surgery |
| B．an achievement for deaf people |
| C．a girl who regained her hearing |
| D．how to improve hearing |
5 . A woman whose sports car was stolen with her dog in it put up notices all over the area that made it clear getting back her pet was more important than her car.
“Whoever did this can keep my car. Please let Benjerman come home,” the notice said.
It is not known whether the thief showed any pity, but almost 30 hours after the 1 pm theft Friday, Kimberly Atkins of Dover and Benjerman, a 12-year-old black retriever(猎犬), were reunited after police located them in Barrington.
“He’s hungry, he’s dirty, but he’s very happy to be home,” Atkins said.
The car was found at about 5 pm Saturday off Route 125 in a swampy area frequented by off-the-road cars and dirt bikes. However, the police couldn’t control Benjerman, and they had to call Atkins to come and get him.
Atkins said the thief cared for Benjerman a little by providing him with some dry cat food. She believed Benjerman ended up drinking some muddy water in the area.
She said they have been together for nearly 11 years after she took him back from a society shelter in Dallas, Texas.
Before Benjerman was found, Atkins and several friends put up notices all over the city and in Somersworth. They also contacted animal shelters throughout southern New Hampshire and Massachusetts.
The notice stated there was a reward, and also that the dog needed medication(药物治疗). Any caller could remain anonymous(匿名的).
Atkins had parked the car outside a hardware store with the keys inside and gone in to rent a carpet cleaner.
“It was 10 minutes and I came out and my car was gone along with Benjerman in broad daylight,” Atkins said. The car thief threw Atkins’ wallet and other personal items out of the car before escaping from the scene.
1. What would be the best title for the passage?| A．A car with a dog was stolen |
| B．Lucky dog was returned to his owner |
| C．Stealing cars: a most important social problem |
| D．Woman wants dog back more than stolen car |
a. Notices were put up saying there was a reward.
b. Atkins saw Benjerman again.
c. Police found Atkins’ car.
d. Atkins took Benjerman back from a society shelter.
e. Atkins hired a carpet cleaner in a hardware store.
| A．d, e, a, b, c | B．d, e, a, c, b |
| C．e, a, d, b, c | D．e, a, c, d, b |
| A．the dog was treated extremely badly by the thief |
| B．car stolen accidents happen frequently nowadays |
| C．the dog was found because of the reward |
| D．the thief stole the car easily |
| A．Benjerman was sent back immediately after Atkins put up the notices. |
| B．Atkins and her friends made a great effort to look for Benjerman. |
| C．The thief gave the dog back but kept the sports car. |
| D．The dog was back at 1 pm on a Friday. |
| A．Benjerman | B．Thief |
| C．Atkins | D．Atkins’ friends |
6 . We're so attached to plastic, but we're careless consumers. Waste plastic is entering our ecosystems and food chains with untold consequences. Cleaning up our polluted world of plastic may seem a noble, but thankless task. However, some people are seeing economic opportunity in the mission.
Plastic Bank, a social enterprise from Canada, is monetizing plastic recycling while empowering those most affected by the waste. It works to prevent waste plastic from entering oceans by encouraging people in developing countries to collect plastic from their communities in exchange for cash, food, clean water or school tuition for their children. After collection, plastic is weighed, sorted, chipped, melted into balls and sold on as“raw material”to be made into everything from bottles for cleaning products to clothing.
“I saw in large quantities; I saw an opportunity,”CEO David Katz told the audience at the Sustainable Brands Oceans conference in Porto, Portugal on November 14.“We reveal the value in this material,”he added.
Plastic Bank was founded in 2013 and launched on the ground operations in 2014 in Haiti, the poorest country in the Western, Hemisphere, where close to 60% of the population live under the poverty line. As result of poor waste disposal and recycling infrastructure (基础设施)，plastic waste enters rivers or is burned and poses the health threats to the local residents.
The company says i has over 2,000 collectors working in the country, with its full- time collectors on average 63% above the poverty line thanks to the income they make from the project. Through its app based payment system, many collectors now have bank accounts for the first time, and are able to ultimately escape ultra poverty.
“Nothing we're doing is against the laws of physics,”said Katz. “All the technology exists for us to solve and save the world. It's only creative thought.”
1. What is Plastic Bank aimed to do?| A．Test out creative ideas. |
| B．Discover new material. |
| C．Promote plastic recycling. |
| D．Stop people using plastic. |
| A．Purchasing- collecting—recycling. |
| B．Exchanging collecting—purchasing. |
| C．Collecting- exchanging—reproducing. |
| D．Persuading consuming—reproducing. |
| A．Haiti attaches great importance to recycling. |
| B．Many locals benefit greatly from the project. |
| C．Collecting is an efficient way to recycle waste. |
| D．The project has solved unemployment in Haiti: |
| A．Companies stand to ban plastic consumption |
| B．Technology finds its way to kick off poverty |
| C．David Katz speaks at the conference in Porto |
| D．Plastic Bank is fighting against plastic waste |
7 . When I was about twelve, I headed to a restaurant for dinner with my family. It was a windy winter night. As my mom and I headed towards the restaurant from our car, a girl about my age and her mother came up to us. They asked if we had any spare dollars. My mom immediately asked where they kept their things. They pointed to an old car in the parking across the street. The girl said there were six of them living in that car, the same size as my own family.
My mom said she had something to do after handing the people a few dollars. She sent me inside the restaurant with my dad and my three siblings(兄弟姐妹). But she didn’t come.
Later, I found out she had gone home and emptied our cupboards into a few bags. Then, she brought that food over to the car and handed the bags to the family. I wasn’t there when that part happened, but I could imagine the joy it brought to their faces.
A few days later, when I actually found out about what she had done, I asked her why she helped those people. She told me that they were not lucky. I remember the face of that girl who had asked us for dollars;she was the same age as me, yet our lives were so different.
Here I stood, dressed in almost new clothes, headed to a restaurant and then back home to the bedroom I shared with my younger sister. I remembered thinking that the girl didn’t have any food to eat and that she was heading back to a cold car shared with five other people.
After painting this picture in my mind, I understood my mom. I will never forget what she did that night. And that night I also learned one of the best lessons she taught me.
1. We learn from the passage that the girl about the writer’s age_____.| A．lived a hard life |
| B．had her own bedroom |
| C．received a good education |
| D．made friends with the writer |
a. My mom gave the girl a few dollars.
b. My family was on the way to a restaurant.
c. My mom went home and brought some food.
d. We met with a girl and her mother asking for dollars.
| A．b, d, a, c |
| B．b, a, c, d |
| C．d, a, c, b |
| D．d, c, b, a |
| A．Patient. |
| B．Strict. |
| C．Proud. |
| D．Kind. |
8 . Mekong fresh water irawaddy dolphin（短吻海豚）is an endangered species（濒危物种）throughout Asia, with reducing numbers inhabiting（栖息）stretches of the Mekong in Cambodia and Laos, and Bangladesh. The dolphins can live up to 30 years, grow up to 2. 5m in length, and can weigh 150kg.
Fortunately for travellers, the dolphins have become a popular tourist attraction in recent years, providing a vital development to the local economy. Kratie, a sleepy provincial capital 7 hours by bus from Phnom Penh, is the best place to see them. The irrawaddy dolphins live in deep Mekong pool all year round and can be found at Kampi village 15km north of Kratie town, which has become a symbol of the town’s rejuvenation after years of war and neglect. The trip to see the dolphins can be started at any time of the day from Kratie town and travel upstream around 30 minutes by car along a quiet paved road to Kampi, a riverside fishing village.
The dolphins can usually be seen right from the river bank, but it’s worthwhile to take a spotting cruise in one of the wooden long-tail boats available for hire. The irrawaddy dolphins won’t come right up to the boat like their gregarious （群居的）saltwater cousins, but they are easy to find, lying lazily on the surface, or breaking water with a distinctive puff of spray while chasing fish.
The boat trip in drive season is only 60 minutes. The boat men will turn off the motor to approach the dolphins and sail with wooden oars, or simply make fast to a clump of brush when dolphins are nearby. In just over an hour on the boat, you will see the dolphins over a hundred times, at a range close enough to distinguish（辨别）between individual animals.
1. What is the main idea of the first paragraph？| A．General information of irrawaddy dolphins. |
| B．The protection of irrawaddy dolphins. |
| C．The distribution of irrawaddy dolphins. |
| D．The growth of irrawaddy dolphins. |
| A．destruction | B．reunion |
| C．recovery | D．reform |
| A．Kampi→Phnom Penh→Kratie |
| B．Phnom Penh→Kampi→Kratie |
| C．Kratie→Phnom Penh→Kampi |
| D．Phnom Penh→Kratie→Kampi |
| A．Irrawaddy dolphins can be watched closely. |
| B．Irrawaddy dolphins are not afraid of people. |
| C．Irrawaddy dolphins like to come right up to the boat. |
| D．Irrawaddy dolphins don’t live in groups. |
9 . When I was about twelve, I headed to a restaurant for dinner with my family. It was a windy winter night. As my mom and I headed towards the restaurant from our car, a girl about my age and her mother came up to us. They asked if we had any spare change. My mom immediately asked where they kept their things. They pointed to an old car in a parking across the street. The girl said there were six of them living in that car, which was the same size as my own family.
My mom said she had something to do after handing the people a few dollars. She sent me inside the restaurant with my dad and my three siblings(兄弟姊妹).But she didn’t come.
Later, I found out she had gone home and practically emptied our cupboards into a few bags. Then, she brought that food over to the car and handed the bags to the family. I wasn’t there when that part happened, but I can only imagine the joy it brought to their faces.
A few days later, when I actually found out about what she had done, I asked her why she helped those people. She told me that they were not lucky. I remember the face of that girl who had asked us for change; she was the same age as me, yet we looked so different.
Here I stood, dressed in almost new clothes, headed to dine in a restaurant and then back home to the bedroom I shared with my younger sister. I remember thinking that the girl didn’t have any food to eat and that she was heading back to a cold car shared with five other people.
After painting this picture in my mind, I understood why my mom had done what she did. I will never forget what she did that night. And that night I also learned one of the best lessons she taught.
1. We learn from the passage that the girl about the writer’s age .| A．made friends with the writer |
| B．had her own bedroom |
| C．received a good education |
| D．lived a hard life |
a. My mom gave the girl a few dollars.
b. My family was on the way to a restaurant.
c. My mom went home and brought some food.
d. We met with a girl and her mother asking for dollars.
| A．b a c d | B．b d a c |
| C．d a c b | D．d c b a |
| A．Patient. | B．Strict. |
| C．Kind. | D．Proud. |
| A．visit the girl in the near future |
| B．save as much money as possible |
| C．learn from her mother |
| D．deal with the world’s food problem |
10 . For hundreds of years, Japan has been hit, from time to time, by tsunami（海啸）, which is caused by earthquakes or underwater volcanoes. The story of the boy Yuuki is the story of such a disaster.
Yuuki lived with his family in a seaside village, below a small mountain. One day, as he played on top of the mountain, Yuuki felt a small earthquake but it was not strong enough to frighten anybody. Soon after, however, Yuuki noticed the sea darken and begin running away from the shore very fast, leaving behind wide areas of beach that had never been seen before.
Yuuki remembered reading that just before a terrible tsunami, the sea suddenly and quickly rolls backward. He ran to the beach, warning the villagers who had gathered to admire the new beach land.
But no one listened. They laughed at him and continued playing in the new sand.
Desperate, Yuuki could think of only one thing to do. He lit a tree branch, raced to the rice fields and began burning the harvested rice. Then he called out, “Fire! Fire! Everyone run to the mountain! Now!”
When everyone reached the mountain top, a villager cried out, “Yuuki is mad! I saw him set the fire.” Yuuki hung his head in shame, but said nothing as the villagers screamed at him.
Just then, someone shouted, “Look!”
In the distance a huge dark wave of water was speeding towards the shore. When it hit the shore, it destroyed everything.
On the mountain everyone stared at the village ruins in terror.
“I'm sorry I burned the fields,” said Yuuki, his voice trembling.
“Yuuki,” the village chief answered. “You saved us all.”
The villagers cheered and raised Yuuki into the air. “We were going to celebrate our rice harvest tonight,” said one, “but now we’ll celebrate that we’re all still alive!”
1. Where was Yuuki when the earthquake struck?| A．On the beach. | B．On the mountain. |
| C．In the rice fields. | D．At home. |
a. Yuuki ran to the rice fields.
b. The villagers paid no attention to Yuuki’s word.
c. Yuuki went to warn the villagers.
d. The village was in ruins.
e. The people were screaming at Yuuki.
| A．c, b, d, a, e | B．a, c, d, b, e |
| C．c, b, a, e, d | D．a, c, d, e, b |
| A．He told them about the earthquake. |
| B．He explained why the sea was flowing out. |
| C．He told the village chief to warn the people. |
| D．He set fire to the rice field. |
| A．Burn the rice crop. | B．Play on the beach. |
| C．Climb the mountain. | D．Celebrate the rice harvest. |
