This year （1）marksmarks（mark） the 42 nd anniversary of the tree-planting.President Xi （2）has participated/has been participatinghas participated/has been participating（participate） in the activity since he became general secretary of the CPC Central Committee in 2012.By taking part in such activities，he encourages the whole society to promote ecological advancement.He also recommends taking innovative measures to plant more trees. "Let's take proactive steps — from planting trees to ensuring green mountains， （3）whichwhichare our valuable assets." he said.
【答案】marks；has participated/has been participating；which
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發(fā)布：2024/5/27 14:0:0組卷：12引用：2難度：0.8
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1．Nuclear bombs.That's the go-to answer for incoming space objects like asteroids（小行星） and comets，as far as Hollywood is concerned.Movies like Deep Impact and Armageddon rely on nuclear weapons，delivered by stars like Bruce Willis，to save the world and deliver the drama.
But planetary defense experts say in reality，if astronomers spotted a dangerous incoming space rock，the safest and best answer might be something more subtle，like simply pushing it off course by crashing it with a small spacecraft.
That's just what NASA did on Monday evening，when a spacecraft headed straight into an asteroid called Dimorphous，which is around 7 million miles away and poses no threat to Earth.It's about 525 feel across and orbits another larger asteroid.
In images streamed as the impact neared，the egg-shaped asteroid grew in size from a little spot on screen to have its full rocky surface come quickly into focus before the signal went dead as the craft hit right on target.
Events happened exactly as engineers had planned，they said，with nothing going wrong. "As far as we can tell，our first planetary defense test was a success，" said Elena Adams，the mission systems engineer，who added that scientists looked on with "both terror and joy" as the spacecraft neared its final destination.
The impact was the peak of NASA's Double Asteroid Redirection Test （DART） ，a 7-year and more than ﹩300 million effort which launched a space vehicle in November of 2021 to perform humanity's first ever test of planetary defense technology.It will be about two months，scientists said，before they will be able to determine if the impact was enough to drive the asteroid slightly off course，probably shortening its original orbit.
NASA plans to launch an asteroid-hunting space telescope named NEO Surveyor in 2026. "We've tacked lots of space rocks，especially the larger ones that could cause extinction-level events.Thankfully，none currently threaten Earth.But many asteroids the size of Dimorphous haven't yet been discovered，and those could potentially take out a city if they came crashing down." explains Lindley Johnson，NASA's Planetary Defense Officer.
（1）How did scientists know the craft hit the asteroid successfully？
A．The signal from the craft was lost as it hit the target.
B．They recorded the whole process with a telescope.
C．The little spot on the screen suddenly disappeared.
D．They monitored the craft with satellites in space.
（2）What is the purpose of launching the spacecraft？
A．To search for evidence of alien life.
B．To end the asteroid's threat to Earth.
C．To save the world and deliver a drama.
D．To test technology for defending Earth.
（3）What can be inferred about Dimorphous？
A．It is a dangerous incoming space rock.
B．It is an egg-shaped asteroid around Earth.
C．It may orbit the same asteroid after the hit.
D．It is expected to blow up after the impact.
（4）Which statement will Lindley Johnson probably agree with？
A．Asteroids are equally destructive whatever the size.
B．NEO Surveyor is aimed to track smaller asteroids.
C．Larger asteroids will no longer threaten Earth.
D．NASA is responsible for the safety of Earth.發(fā)布：2024/12/11 2:0:1組卷：6引用：4難度：0.5 -
2． Garfield is turning 45，as one of the world's most famous cats.Originally created by an American cartoonist Jim Davis in 1978，the loving cat character （1）
（appear） in books，TV series and movies so far.Currently，Paramount Global is celebrating（2）45th birthday of Garfield，inviting various bakers to make birthday cakes （3）the charming character.
（4）（interesting），one of the cakes was made by Gu Hong，a France-educated Chinese baker，and looks like the shape of shoutao（longevity peach），a symbolic pattern in China that is often used to wish those（5）（celebrate） their birthday a long and healthy life.Gu，also owner of the specialty dessert，said she feels thrilled to be part of the anniversary celebration."I love Garfiled（6）he knows all about good food and his attitude toward life is something we can easily identify with and learn from， （7）is to be easygoing and accept yourself，"said Gu.Additionally，Garfield at Large—the first collection book of Garfield comics originally（8）（publish） by Ballantine Books—will be reprinted in a limited edition with only 300 （9）（copy） available.
A series of events（10）（hold） worldwide，including the Special Garfield Holiday：Let's Party Together exhibition in Haikou next week，and the It's A Cat's Life exhibition in Hong Kong in July.發(fā)布：2024/10/13 16:0:4組卷：16引用：2難度：0.5 -
3． While famous foreign architects are invited （1）
（lead） the designs of landmark buildings in China such as the new CCTV tower and the National Center for the Performing Arts，many excellent Chinese （2）（architecture） are making great efforts to take the center stage.
Their efforts have been proven （3）（fruit） .Wang Shu，a 49-year-old Chinese architect，（4）（win） the Pritzker Architecture Prize， （5）is often referred to as the Nobel Prize in architecture，on February 28，2012.He is the first Chinese citizen to win this award.
Wang serves as head of the Architecture Department at the China Academy of Art （CAA） .His office （6）（locate） at the Xiangshan campus of the university in Hangzhou，Zhejiang Province.Many buildings on the campus are his original （7）（create） .
Wang's works show a deep understanding of modern architecture and （8）good knowledge of traditions.Through such a balance，he had created a new type of Chinese architecture，said Tadao Ando，the winner of the 1995 Pritzker Prize.
"Today，many Chinese people are learning Western styles and theories rather than focusing. （9）Chinese traditions.Many people tend to talk about traditions without knowing （10）they really are，" said Wang.發(fā)布：2024/10/23 6:0:3組卷：6引用：1難度：0.5
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