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A. Although B. give their seats C. Since D. were not allowed E. make life better F sold |
Martin Luther King, Jr. was born in Georgia in the south of the USA in 1929. In 1954 he began to work in a church (教堂).
All through his life he tried to for African-Americans, whose ancestors came to America from Africa between 1640 and 1798. White people brought them to America in ships, them as slaves (奴隶) and forced them to work. they were set free (自由的) after the American Civil War, their lives didn't change much for a long time. Some people still didn't like them. In the 1950's, African-Americansto do lots of things in the south of America. They could not walk on the footpath when a white person was on it. They could not eat in restaurants where white people ate. They could not go to the shops that were owned by white people. When they were on a bus, they had toto white people.
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A. made a famous speech B. fair C. refused D. in peace E. agreed F. stop riding |
In December of 1955, a lady called Rosa Parksto give her seat to a white man. This made the bus driver angry and he called the police. The police took Rosa away. Martin Luther King, Jr. said this was wrong and told people they should stop it. He spoke to lots of people and told them what was happening. He said the law should beand they should be able to do the same things as white people. He called for the African-Americans toon the bus. His idea worked. The bus companies (公司) lost money. In December 1956, the Supreme Court (最高法院) made the city change the rules.
Martin Luther King, Jr. traveled across America to meet lots of important people and told them about the problems. In 1963 he led a big group of African-Americans in Washington. Hethere. He said he had a dream that black and white people would live together . He was a really important person in history because he changed African-Americans' lives a lot. American people and people around the world remember him for what he has done.
Wearing a white blouse, Ai-Da studies her subject and begins to draw. She looks like any artist at work. However, the "beep ... beep ... beep" noise from her arm gives her away. Ai-Da is, in fact, a robot.
Ai-Da has been described as the world's "first Al (人工智能) robot artist". She takes her name from Ada Lovelace, the world's first female computer programmer. Scientists at Oxford University developed Al systems (系统) for Ai-Da. The robot has cameras in her eyeballs. After she has studied a subject, she will use her left arm to draw. Now, Ai-Da can only use a pencil for sketches (素描).The plan is for her to paint.
Ai-Da is not the first Al system to produce artworks. Since 2006, scientists have been developing software (软件) to turn photos into drawings. Last year, an artwork created using Al was sold in New York for$432,500. However, Ai-Da's human-like appearance." brings something new to the field.
In June, Ai-Da opened her first exhibition at Oxford. Then were about 30 drawings by the robot. Ai-Da, standing next to her artworks, attracted (吸引) many visitors.
Ai-Da's inventor, Aidan Meller, talked about the importance of the robot. "Ai-Da bring a new voice to the art world," she said "Al is going to be the big thing of the 2020s. That influences us greatly." Meller hopes the exhibition was just the start and that more will follow to show how AI is influencing human life.
The longest river in the world is the Nile. It is 4,160 miles long. But the Nile is not the mightiest (浩荡的) river. The Amazon is. The Amazon is also the second longest river in the world. It is 3,900 miles long. How long is that? It is longer than a road going from New York City to San Francisco.
The Amazon is the mightiest for this reason. It has the greatest amount of water. More water runs out to sea than from the Nile. Mississippi, and Yangtze rivers combined. That's a lot of fresh water! The force of its current (水流) is great too. The current can be seen 200 miles out in the sea. There's a story to show the Amazon's amazing current. A ship sailed (航行) far away from Brazil. It ran out of drinking water. Another ship passed by. The first ship asked for water. Someone on the second ship said. "Just put your buckets (桶) into the sea."
Here are a few more facts. At its mouth, the Amazon is 90 miles wide. Even up the river, you can't see the opposite bank. The river is also very deep(from 22 to 76 meters). During rainy season, the river rises about 16 meters more. Big ocean ships can sail about 1,800 miles upstream (向上游). Smaller ships can sail 1,000 miles farther.
What's the most bloodthirsty fish in the world? No. It's not the shark It's the Amazon's piranha.It is only about 10 cm to 20 cm long. It has sharp teeth. Thousands travel in a group. No animal can swim across the river. A 1,000-pound horse would be just bones (骨头) in three minutes. Are you planning a trip to the Amazon? Here's a piece of advice. Leave your swimsuit at home!
Wake up, boys and girls! Put up your hand if you try to repair your tired body by sleeping in(睡懒觉)on weekends. A new study says the habit might not be a good idea for your health.
The ten-day study came out in the magazine Current Biology. Volunteers were divided into three groups. The first group enjoyed nine hours' sleep each night. The second group was allowed to sleep only five hours each night. The third group was given five hours' sleep Monday through Friday. But they were put back on the short sleep schedule the next Monday.
Both the second and third groups ate more snacks at night and put on weight. They also saw a decrease (减少) in insulin sensitivity (胰岛素敏感性), a warning sign for diabetes (糖尿病). Researchers have long known a tack (缺乏) of sleep can increase health risks.
"Even though people in the third group slept as much as they could on the weekend, it was not enough," said Dr Kenneth Wright, who led the study. "When they went back to the short sleep schedule the next week, their body failed to control blood sugar.
So what should we do if sleeping in over the weekend is not a good choice? Cut out the "sleep stealers" such as watching television shows or spending time on computers or mobile phones. Always remember. Getting enough sleep is as important as having good caring habits or doing exercise regularly.
A. That was partly because their biological clock (生物钟) had been changed.
B. People can repair their tired body by sleeping in on weekends.
C. But it was surprising that the third group had been worse than the second one.
D. Dr Wright gave advice in two words: sleep longer.
E. And then they were allowed to sleep as much as they liked over a weekend.
—He's going to be more this year.
—He's going to chocolate completely.
—He's going to take up.
—She is going to be.
—She is going to get on well with her.
In Pontevedra, a city in Spain, people don't shout. Since cars are banned (明令禁止) in the city, there are no noises from cars. People don't have to try hard to make themselves heard. What you hear in the street, instead, is the singing of birds.
Miguel Lures, the mayor (市长) opens the windows of his office, and the sound of human voices (rise) from the street below. Lures says, "More than 14,000 cars used to pass along this street every day. There (be) more cars passing through the city in a day than people living here."
Lores became mayor in 1999. He spent months(walk) around the city. "The historical city is dead," he said one day. "It is full of cars. It(pollute) heavily. There are a lot of traffic accidents. The elderly and children aren't able to use the streets because of cars. People who had a chance to leave have done so."
At first, Lores thought of improving traffic conditions. However, he couldn't come up with a good plan. After lots of discussions, the government finally decided( take ) action to ban cats.
The change(bring ) Pontevedra many advantages since then. Traffic accidents seldom happen. CO2 emissions (排放物) are down 70 percent. Many people are moving to the city, making it lively again. Most local people in the city like the change. Ramiro Armesto, a mother of two young children, said, "in the past, the first thing to see in the morning was traffic jams. Now, the city is cleaner, quieter and safer." Raquel Garcia, another parent, said she had stayed in many cities around the world. However, she had never lived in a city as "easy to live in" as Pontevedra. "Even while it(rain). I walk everywhere. The feeling is wonderful," she added. "Pontevedra is paradise(天堂)”
On winter nights, the wind usually blows strongly. Most of us stay inside our warm homes. Few of us think about the homeless. These people have no choice but to sleep on the streets. Some of them are so poor that they have no money to buy food.
A young man in Birmingham, England, made a decision to do something about this. Every night, he puts on a Spider-Man suit and gives food to the homeless he meets. He makes sure that these people won't go hungry.
The man refuses to make his name public. The local people call him the "Birmingham Spider-Man". The young man hopes his action will show others that everybody deserves (应得) a helping hand.
The 25-year-old man started his night activities in 2015. Every night at 9, he buys some sandwiches. Then, he finds a quiet alley and puts on his "uniform". After that, the "Spider-Man" starts handing his food out to people in need.
The man said, "I wear the Spider-Man suit in order to get attention." Without the suit, few people took a second look at him when he was handing out food. When people see the "Spider-Stan", however, they come over and ask what he is doing.
"The Birmingham Spider-Man" has already got lots of attention. Many people have offered to give away money to him. But the young man never accepts the money. Instead, he encourages people to go out and help people in need on their own. He said, "If more people offer a helping hand, the cold winter nights won't be so cold any longer."
B. 
C. 
E. 
F. 