Do you know about Psephurus gladius？ It's a Chinese paddlefish known as "king of all national freshwater fish"． However， it is announced that the Chinese paddlefish living in the Yangtze River has become extinct （灭绝的）．
A paper from Science of the Total Environment shows that the largest freshwater fish in China might have gone extinct between 2005 and 2010． Wei Qiwei， author of the paper， said in September， 2019， some experts supposed that the first﹣class protected fish had been extinct already．
The Chinese paddlefish was about 2 to 3 meters long and could grow longer than 7 meters．The fish had lived on the earth for 15 million years． The latest discovery of the fish was made in 03． Scientists helped the fish to return and tried to track （追踪） it． Unluckily， a boat accident
caused the tracking efforts to fail． Since then， no discovery has been reported and no such fish has been kept in captivity （圈养）．
"The Chinese paddlefish was so big that it was hard to raise in captivity，" Wei said．Between 1984 and 1993， he once tried to save four fish， but only one stayed alive and returned to the river．
The extinction of the fish has called public attention as people expressed sadness over the death，hoping such animals would be better protected so that future generations could see them．From Jan 1， 2020， China began a l0﹣year fishing ban （禁令） on important areas of the Yangtze River to protect Biodiversity （生态多样性） in China's longest river．
（1）It can be learned from the passage that ．
A． the Chinese paddlefish was hunted too much in the past
B． the Chinese paddlefish was the largest freshwater fish in the world
C． the Chinese paddlefish could grow to be over 7 meters in length
D． the Chinese paddlefish has never been seen so far
（2）What happened after the boat accident mentioned in Paragraph 3？
A． Some scientists saved the fish．
B． People failed to track the fish．
C． The fish lost its life．
D． The fish was kept in captivity．
（3）Why couldn't the Chinese paddlefish be raised in captivity？
A． Because of its living habits．
B． Because of its large size．
C． Because of its special diet．
D． Because of the high cost．
（4）What's the writer's purpose in writing the passage？
A． To show people 's sadness about the fish's death．
B． To explain how the fish died out．
C． To call on people to protect animals．
D． To introduce a first﹣class protected fish．
Steve Jobs, co-founder and former CEO of US technology giant Apple, has died at the age of 56. Mr Jobs had announced he was suffering from cancer in 2004. Apple said he had been "the source of countless innovations（创新）that enrich and improve all of our lives" and had made the world "immeasurably（无法衡量的）better".
Tributes(赞美之辞) have been made by technology company bosses and world leaders, with US President Barack Obama saying the world had "lost a visionary（有远见卓识的人）". "Steve was among the greatest of American innovators —— brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it," said Mr Obama.
A statement from Mr Jobs's family said they were with him when he died peacefully on Wednesday. "In his public life, Steve was known as a visionary; in his private life, he loved his family deeply," they said, requesting privacy and thanking those who had "shared their wishes and prayers" during his final year.
Apple said the company had "lost a visionary and creative genius(天才) and the world have lost an amazing human being". Tim Cook, who was made Apple's CEO after Mr Jobs stood down in August, said his predecessor had left behind "a company that only he could have built, and his spirit will forever be the foundation of Apple". Flags are being flown at half mast outside the Apple headquarters（总部） in Cupertino, California, while fans of the company have left tributes outside Apple shops around the world.
The heads of other leading technology companies have also paid tribute, including Microsoft boss Bill Gates, who said "For those of us lucky enough to get to work with him, it's been a great honour. I will miss Steve very much."
Facebook founder Mark Zuckerberg thanks Mr Jobs for "showing that what you build can change the world" while Sony Corp president and CEO Howard Stringer said: "The digital age has lost its leading light." South Korea's Samsung, which is involved in a case with Apple over patents(专利), admired Mr Jobs for his "Completely new and different changes to the IT industry".Hearing of Steve Jobs’ death, the heads of other leading technology companies have paid tribute and __________.
| A．shared the treasure with his family | B．suffered from the sad news |
| C．been involved in a case with Apple | D．spoken highly of him |
Obama made a speech at Steve Jobs’ death because _________________.
A. they had been friends for years
B. they had set up an excellent company
C Jobs had played an important role in the development of the IT industry
D. Jobs had changed Obama’s political(政治的) life Who became Apple's CEO after Mr Jobs?
| A．Tim Cook | B．Howard Stringer | C．Mark Zuckerberg | D．Barack Obama |
Think stars don’t move? Think again! When you look at the sky at night, the stars may appear to stay in the same place. But stars are always on the move—they are just so far away that the movement is hard to see.
But some stars move in ways that appear to be strange to be real. In 2005, astronomer Warren Brown found one of these space oddities(奇特). It was located on the outer edge of the Milky Way, the galaxy(星系) we live in. The star was speeding away like nothing he’d ever seen. “It seemed unbelievable. No star in the galaxy has a speed like that,” Brown remembers. “I thought, oh my goodness, I have something kind of special here.”
No one had ever seen a star like this one. What does a scientist do when the results don’t make sense?
Brown didn’t give up. Instead, he kept looking. And he kept finding more of these strange and speedy stars, called hypervelocity stars. Hyper means “above” and velocity has to do with speed. He and his team just found six more of these “above speed” stars, bringing to the total of 16. And, he says, he’s found even more, and is just waiting for the scientific community to confirm them.In 2005, astronomer Warren Brown found___________.
| A．a star was speeding away very fast. |
| B．a stars was moving away very slowly. |
| C．some stars were not real. |
| D．some stars were not in the Milky Way. |
Which of the following is TRUE?
| A．Stars never move at all. |
| B．No star in the galaxy has a fast speed. |
| C．It’s hard to see the stars moving. |
| D．Brown has never seen something special. |
The underlined word “hypervelocity” in the last paragraph probably means”_____”.
| A．匀速的 | B．超速的 | C．超重的 | D．超常的 |
The writer writes this passage to tell us____________.
| A．something about an astronomer. |
| B．where the Milky Way is |
| C．something about the speedy stars. |
| D．how scientists do their research |
What do you eat every evening? Do you eat meat? Do you eat vegetables? Do you eat fruit or dessert after dinner? We asked online 55 students of Class 1, Grade 7 in Sunshine School. Here is the result.
How many girls are there in Class 1, Grade 7?
| A．Twenty. | B．Thirty-five. | C．Thirty. | D．Twenty-five. |
In the class, 10 students don’t eat for dinner.
| A．meat | B．vegetables | C．fruit | D．dessert |
How did the writer get the result?
| A．He went to Sunshine School to ask some students. |
| B．He got it from the newspaper. |
| C．He asked some students on the Internet. |
| D．Somebody else told him about it. |
In the past twenty years, riding bicycles has become more and more popular among people of all ages. (83) Bicycles have long played an important part in the lives of American young people. But today an even greater number of adults cycle along roadsides and bicycle paths. These new riders are often trying to become fit or lose weight. They have found that bicycling is a pleasant way to stay healthy.
This is certainly good for health. But it has also brought some problems. With all these added people on the road, bicycle safety has become a matter of real importance.
Bicycle safety is mostly a matter of common sense. People should ride only on bicycle paths where they will not be badly hurt. There are also a number of rules that riders should follow, especially when riding on streets or highways. Bicyclists should never ride against the traffic, nor should they carry other people on their bicycles. They are also supposed to ride in single line on busy streets and to walk bicycles across the busy intersections (交叉路口) . (84)By following these rules, bicycle riders will not only stay healthy but also be safe.
In one recent year, the National Safety Council reported that 34 thousand bicycle riders were hurt in highway accidents. In that same year, another six hundred riders were killed. Since the introduction of crash helmets (头盔) in 1980, the number of injuries (伤者) and deaths from bicycling accidents had gone down. Today, more and more riders realize the dangers of bicycling. They are wearing helmets and paying closer attention to cycling rules.
根据短文内容回答下列问题。How many rules should the riders follow? Give one example.
According to the National Safety Council’s report, what’s the total number of injuries and deaths in one recent year?
B. 将短文中划线部分译成汉语。
C. 请给短文拟一个适当的英文标题。
Bill and Simon were good friends. One summer they were on (1) h ____ . They wanted to sail around the Caribbean Sea in their boat for two weeks.
During their trip, they saw many whales. Bill and Simon were very (2) e__________ because they had wanted to see them very much. Unluckily, (3) w __ ___ they were watching them, the whales began to hit the side of the boat.
Suddenly, (4) w ______ started coming in, and they realized that they were in trouble. They (5) q_ _____ jumped into the lifeboat before the sank(沉没), and watched it disappear under the sea.
Luckily, they had enough food and water for about twenty (6) d __ ___. They also had a fishing line and a machine which could change sea water () i
drinking water. These two things helped them to survive(存活) during their terrible experience.
For the next fifty days they caught about ten fish a day and (8) a _____ them. They saw about twenty ships, but although they waved and shouted when the ships were passing, (9) n _________ saw them. They were becoming weaker and weaker. Then, just as they were beginning to (10) l _______________ hope, a fishing boat saved them.
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