For years, a question that human beings often ask about the universe is: “Are we alone here?” In January, 2019, the discovery of new fast radio bursts (FRBs,快速射电暴) from deep space got many to ask it again.
According to Mirror, a Canadian led team of scientists found 13 FRBs with the help of a radio telescope. First discovered in 2007, FRBs are short bursts of radio waves coming from far outside the Milky Way(银河). Scientists have found over 60 FRBs so far. They last only a few milliseconds but release the same energy as the sun gives off in a day.
Among the 13 FRBs, a very unusual repeating signal was found, which came six times from the same location about l.5 billion light-years away. Such an event has only been reported once before, back in 2012. It may help scientists understand where FRBs are from and what causes them. More importantly, the new FRBs were recorded at unusually low radio frequencies. Most of those previously found have had frequencies of around l,400 megahertz (MHz), but new bursts are found at even 400MHz - the lowest frequency the telescope can discover. According to the BBC, the low frequency means that the sources of the bursts have changed. It also suggests humans can learn more about the environment where the bursts come from.
Avid Loeb, a professor from Harvard University, believes the radio waves may be evidence of alien technology. They may be “leakage from a huge, light-powered ship deep in space,” Loeb told The Independent. And even some Chinese internet users joked we shouldn't respond to them. However, most researchers believe that FRBs are formed due to the death of a star or the merging (合并) of two black holes.
“Science isn't a matter of belief, it's a matter of evidence,” claimed Loeb. So only more advanced technology and more collected data will reveal the truth about FRBs. Time will be the judge.
1.What can we learn about the 13 FRBs from the text?
A.They release less energy than the sun does.
B.They are from somewhere in the Milky Way.
C.They cover l.5 billion light-years in a second.
D.The 400MHz FRBs may help man know more.
2.What does the underlined “it” in Paragraph 3 refer to?
A.The year of 2012. B.The same location.
C.The radio telescope. D.The repeating signal.
3.Which statement might Loeb agree with?
A.More is needed to explore FRBs.
B.We shouldn’t respond to the FRBS.
C.FRBs are from sun-powered ships in space.
D.FRBs are formed due to the death of a star.
4.What might be the best title for the text?
A.What Causes FRBs? B.Where Are FRBs From?
C.Are Aliens Signaling to Us? D.Is Science a Matter of Belief?
The Mogao Caves of Dunhuang, a treasure house of art of China, has been spanning over 1,000 years. The art inside here covers more than ten major genres, such as architecture, stucco sculpture, wall paintings, silk paintings, calligraphy woodblock printing, embroidery, literature, music and dance, and popular entertainment. But all these only existed because of one man’s vision.
In 366 A.D., a monk named Le Zun looked across the river at dawn and saw a thousand Buddhas appear on the golden cliff face of Mingsha mountain along the old Silk Road. The caves were then built by monks and mostly sponsored by people such as wealthy merchants, foreign dignitaries, as well as Chinese emperors.
But when trade in the Silk Road stopped, Dunhuang was soon forgotten and eventually, the Mogao caves were abandoned. The site however was still used as a place of worship by the local people of the 20th century when there was renewed awareness in its presence once more.
Most of the discoveries came from a Chinese Taoist monk named Wang Yuanlu who appointed himself as the guardian. The caves at that time were badly ignored, but Monk Wang recognized their value and instituted a program of restoration, funded by whatever donations he could gather.
He then made one of the great discoveries in Chinese archaeology: an amazing cache, of over 50,000 documents and paintings, which had been hidden in Mogao Cave #17. The cave #17 came to be known as the Library Cave, which was walled up sometime early in the 11th century. A number of theories have been proposed as the reason for sealing the cave. One theory was that the cave had become a waste storeroom for precious, damaged and used documents and holy equipment and then sealed perhaps when the place came under threat. Another suggestion is that the cave was simply used as a book storehouse for documents which accumulated over a century and a half, then sealed up when it became full. Others suggested that the monks hurriedly hid the documents in advance of an attack by invaders.
1.What is the second paragraph mainly about?
A.The legend of Mogao Caves. B.The end of the old Silk Road.
C.The discovery of Mogao Caves. D.The development of the Silk Road.
2.What did Wang Yuanlu do to restore the caves?
A.He evaluated their value. B.He raised donations in different ways.
C.He sent guards to protect them. D.He persuaded government to do repairs.
3.What does “walled up” in the last paragraph mean?
A.Sealed. B.Built.
C.Hidden. D.Discovered.
4.Why is Mogao Cave #17 considered a great discovery?
A.It used to be a library for monks. B.It stored valuable historical materials.
C.It had a history of over 1000 years. D.It was deserted for mysterious reasons.
Since the Sydney Story Factory opened in Redfern, my colleagues and I have taken over 8,000 young people aged 7 to 17.
Back in 2011, it seemed a risky decision to leave my job as a journalist to run the Sydney Story Factory. But later every time I see that light go on in a child’s eyes when he understands the power and joy of words, I know I made the right decision.
All our programs end in a publication. This might be an animation (动 画 片 )recorded on a DVD, or a beautiful book, but either way, it’s something the students can take home and proudly show to their family. There is nothing like the smile that spreads across the face of an eight-year-old when he holds that publication in his hands.
There’s one boy called John, I remember-whose mum almost dragged him through the door when we opened. He hated writing. But our teachers didn’t treat him as a kid who was bad at writing; they were curious to find out how he was going to finish his story and what would happen next. And very slowly John’s ideas came. When he threw one out, our teachers would say, “Yes. And?” Then he’d have another idea. At the end of that first course, he’d worked with a small group to produce a short animated film. Gradually, John came back himself. Nearly four years later he’s still coming.
John is a very different boy from the one who first walked through our door. He’s doing better at school, and he’s far more confident. When younger kids come into the Sydney Story Factory, he welcomes them and shows them around. We don’t claim credit for all of that, of course, but some part of it is because he has become something he never thought would be: a writer.
1.How does the author feel about running the Sydney Story Factory?
A.Instructive. B.Incredible.
C.Worthwhile. D.Unreasonable.
2.What can kids get after learning in the Sydney Story Factory?
A.Different DVDs. B.An invitation to write a book.
C.Their published works. D.Qualification for animation creation.
3.Which of the following best describes John’s teachers?
A.Caring and humorous. B.Patient and encouraging.
C.Sociable and demanding. D.Serious and responsible.
4.What can we infer about John?
A.He is careful with his words.
B.He enjoys creating short films.
C.He has made great progress in writing.
D.He encourages others to write themselves.
Being a teenager is hard, which is why there are many amazing teen movies documenting the experience. Some are so good that they will become classics in a few years. Here is a list for you.
Mean Girls
“You GO Glen Coco!” “It’s not going to happen!” “On Wednesdays we wear pink! ” “You can’t sit with us! ”
If you rank teen movies by how many lines of dialogues will live on forever, Mean Girls will certainly lead the pack. So many classics!
Eighth Grade
This movie will take you back to the eighth grade and remind you of all the good and bad times you had at that age. Kayla, a shy girl, feels the most connected to the world through social media. It’s Kayla’s final week in the eighth grade and she promises to make it as great as possible before she moves on to high school.
13 Going on 30
This classic follows Jenna Rink, a 13-year-old girl whose wish is to grow up and escape from high school. One day her wish comes true. She wakes up in her 30-year-old body only to find that she’s an editor of a major magazine in America. Although she loves her new life at first, she quickly finds out that being grown-up isn’t that much easier than being 13.
Shazam!
Shazam! is about a kid named Billy Batson, who suddenly gets magic powers from a wizard named Shazam. By calling Shazam’s name, Billy can be transformed into a hero with powers like strength, speed and flight. Like in all these kinds of movies, in Shazam! Billy is tasked with beating an opponent who wants to steal all his powers.
1.What is special about Mean Girls？
A.It is about girls’ adventures.
B.It is put on every Wednesday.
C.It ranks first on the movie list.
D.It contains lots of classic dialogues.
2.What can we infer from Eighth Grade?
A.Kayla enjoys socializing with others.
B.Kayla mainly contacts with others online.
C.The eighth grade is full of happy memories for Kayla.
D.Being adults isn’t as easy as being in the eighth grade.
3.What kind of movie is Shazam!?
A.A fantasy film. B.A documentary.
C.A comedy film. D.A romantic movie.
假如你是李华，在得知中国女排世界杯夺冠，打算在你校的网站上发帖，请根据以下提示用英语写一篇帖子，内容如下：
1.简要介绍夺冠原因(刻苦训练，团队合作等)；
2.你的感想；
3.你的打算。
注意：1.词数100 左右；
2.可适当增加细节，以使行文连贯。
At the news that the Chinese Women Volleyball Team won the World Cup, the whole nation was wild with joy.
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假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(A)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下画- -横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
In order to promote Chinese traditional culture and help students have better understanding of Chinese traditional culture, the Student Union would organize a Tang Poetry Recitation Contest.
As is scheduled, the contest is to be held in the school lecture hall in Jan 20, 2020, before which you are supposed to get prepared. Above all, it's recommended that you recited enough poetry from Three Hundred Tang Poems, but learn to appreciate the beauty of Chinese poetry. In addition to, any student which wants to attend is welcome to sign up for the contest in the Student Union office before Jan 15, 2020. I'm surely you will learn a lot .Don't missing the great chance to enjoy the Chinese Poetry. It will be a feast for your eye.
