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In order to promote participation in outdoors exercise, our school organized an activity to climb a mountain on April 10. The majority of my class took part in the activity.

Early in the morning, having gathered outside the school gate, we head straight to the thickly-forested mountain. We set out for the top and were in high spirits the moment when we arrived at the foot of the mountain. In course of the climb, we cooperated with each other to pass the rocky area. Laughing and cheered, we eventually reached the top, which we were greeted by the bright sunshine and fresh air. Viewing from the top, the city was beautiful. Bathed in the sunshine, we entertained us with songs, dances and game.

This event is extremely beneficial and we strongly suggest that similar events are held every year!

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Fifty years ago, China successfully launched ¡¾1¡¿ (it) first satellite, Dongfanghong 1 , and started a new chapter in space exploration. ¡¾2¡¿(mark) its 50th anniversary, the China National Space Administration announced the name for the country¡¯s Mars planetary exploration program on April 24.

The mission, Tianwen, got its name from a famous poet, Qu Yuan,¡¾3¡¿ wrote the long poem Tianwen. In the poem, Qu raised a series of questions concerning the sky, stars natural phenomena myths and the real world, reflecting his doubts on traditional ideas and his pursuit of truth.

China ¡¾4¡¿ (make) remarkable progress in space exploration. As early as 1970, China launched its first man-made Earth satellite, becoming the fifth country in the world to launch man- made satellites ¡¾5¡¿(independent) . Over the past few years, China¡¯s missions, including the Shenzhou and Chang¡¯e series ¡¾6¡¿(design) to explore outer space, expanded mankind¡¯s understanding of Earth and the universe.

This time, ¡¾7¡¿ Tianwen series will carry out the first Mars exploration mission in 2020.

Experts consider it the start of China¡¯s exploration of Mars, ¡¾8¡¿(represent) a milestone for China¡¯s move toward deep space.

Indeed, ¡¾9¡¿ the name¡¯s deep roots in Chinese traditional culture, it has been widely accepted among the public. Tianwen demonstrates the ¡¾10¡¿(determine) and perseverance (¼á³Ö²»Ð¸) of Chinese people to move further into deep space.

¡¾ÌâÄ¿¡¿ I work at a company where there are lots of employees. I can¡¯t say that I know them all by name, but I know my fair share of them. I think that almost all of them know me. It is all based on one simple principle: I believe that every single person deserves to be acknowledged, even though it is only a smile or a nod of the head.

When I was about ten years old, I was walking down the street with my mother. She stopped to speak to Mr. Lee. I was busy throwing stones at the stop sign. I knew I could see Mr. Lee any old time around the neighborhood, so I didn¡¯t pay any attention to him. After we passed Mr. Lee, my mother stopped me and said something that has stuck with me from that day until now. She said, ¡°You let that be the last time you ever walk by somebody and not open up your mouth to speak, because even a dog can wave its tail when it passes you on the street.¡± That phrase sounds simple, but it¡¯s been a guidepost for me and the foundation of who I am.

At work, I always used to say hello to the founder of the company and ask him how our business was doing. But I also spoke to the people who cleaned the buildings and asked how their children were doing. I¡¯ve become vice president, but that hasn¡¯t changed the way I approach people. I still follow my mother¡¯s advice. I speak to everyone I see, no matter where I am. You will realize how powerful it is just to open your mouth and say, ¡°Hello.¡± I¡¯ve learned that speaking to people creates a pathway into their world, and it lets them come into mine, too.

¡¾1¡¿Which of the following can replace the underlined word ¡°acknowledged¡± in Paragraph 1?

A.Accepted.B.Thanked.

C.Greeted.D.Respected.

¡¾2¡¿Why did the author ignore Mr. Lee?

A.The author often met him.B.The author was too busy.

C.The author didn¡¯t like him.D.The author didn¡¯t know him.

¡¾3¡¿What did the author learn from his mother?

A.Everyone should be treated fairly.B.Speak to everyone you see.

C.Polite behavior is important in your life.D.Friends may disappear from your life any time.

¡¾4¡¿What¡¯s the author¡¯s purpose in writing the text?

A.To show respect for his mother.B.To share how to succeed in work.

C.To show how to approach others.D.To share an important principle.

¡¾ÌâÄ¿¡¿ The Tokyo Summer Olympics is going green. The 5,000 medals Japan has made are more special than most.

One novel focus of the Tokyo Olympics is to be¡°sustainable¡±¡ªto avoid using too many natural resources, so that the games are easy on the environment. As part of this goal, the organizers decided to make all of the Olympic medals out of metal recycled from old electronics.

Almost all electronics are made with small amounts of "precious metals", like gold and silver. But collecting enough of these metals to make 5,000 medals was a huge challenge. That's because the amount of metal in each device is tiny. It would take about 20,000 cell phones to get just 1 kilogram of gold.

Beginning in April 2017, the organizers placed collection boxes around the country, and asked people to turn in their old electronic devices. Soon people began to respond to the initiative, turning in smartphones, digital cameras, hand-held games, and laptops. At first, collection went slowly, but soon more and more areas began to take part. By the end, 1,621 local governments had helped out with the collection process.

Then came the job of breaking those devices down into smaller pieces. After being taken apart and sorted, the small electronics were smelted (ÈÛÁ¶) to get all the gold, silver, and bronze elements. This is a tricky job, which calls for careful attention and good skill. It's also dangerous, because some of the metals and other things aren't safe for people to touch or breathe.

By the end of March, 2019, the organizers had hit their targets of getting enough metal for the medals. They had collected around3xkilograms of gold, 4,100 kilograms of silver and 2,200 kilograms of bronze. And now all the 5,000 medals are available for the would-be winners.

¡¾1¡¿What can we know about the Tokyo Olympics medals?

A.They are hugely valuable.

B.They are of high quality.

C.They are designed uniquely.

D.They are made from e-waste.

¡¾2¡¿What does Paragraph 4 mainly tell us?

A.The difficulty of making the medals.

B.The process of collecting old electronics.

C.The initiative to recycle used smartphones.

D.The classification of the collected devices.

¡¾3¡¿The underlined word ¡°tricky¡±in Paragraph 5 means¡° ¡±.

A.creativeB.well-paid

C.demandingD.time-consuming

¡¾4¡¿What's the purpose of Tokyo's way of making the medals?

A.To advocate sustainable use of resources.

B.To promote the spirit of Olympic Games.

C.To introduce a new technique to make medals.

D.To call people's attention to environmental damage.

¡¾ÌâÄ¿¡¿NASA Student Competitions

NASA Human Exploration Rover Challenge

Teams of high school and college students are challenged to design and build a human-powered vehicle to travel across the simulated(Ä£ÄâµÄ) surface of another world. The course includes 14 roadblocks and 5 tasks, and teams must successfully follow NASA instructions. Each U.S. school may enter up to two teams. For international entries, no more than four teams from each country will be accepted.

International Team Registration Deadline: July 12

U.S. Team Registration Deadline: August 16

NASA Lunabotics Competition

Lunabotics challenges teams to design, build and run their autonomously operated robot, travel through simulated off-world areas and dig the simulated lunar soil. This challenge includes presentations and demonstrations, and a systems engineering paper explaining the methodology the team uses to design and build their robot.

Registration Deadline: July 18

NASA SUITS Design Challenge

NASA Spacesuit User Interface Technologies for Students (SUITS) gives students an authentic engineering design experience supporting NASA¡¯s Artemis mission¡ªlanding American astronauts safely on the Moon by 2024! This activity challenges students to design and create spacesuit information displays within AR environments.

Proposal Deadline: July 25

2020 BIG Idea Challenge

NASA¡¯s 2020 Breakthrough, Innovative and Game-changing (BIG) Idea Challenge is open to teams of 5 to 20 students. Teams are challenged to submit proposals for sample lunar payloads(ÓÐЧÔغÉ) that demonstrate technology systems needed for exploration and science in the permanently shadowed regions in and near the Moon¡¯s polar regions. Selected teams will receive awards from $50,000 to $180,000 to bring their ideas to life!

Entry Deadline: August 16

¡¾1¡¿John, a student who is good at designing vehicles, can enter______________.

A.2020 BIG Idea ChallengeB.NASA Lunabotics Competition

C.NASA SUITS Design ChallengeD.NASA Human Exploration Rover Challenge

¡¾2¡¿What does NASA Lunabotics Competition require of participants?

A.They need to finish building their robot on July 18.

B.They have to complete a course of 5 tasks.

C.They need to create their own simulated environments.

D.They should write a paper showing how they build their robot.

¡¾3¡¿Which of the following statements about the last two competitions is true?

A.They both require submitting proposals before August.

B.They both ask participants to bring their ideas to life.

C.They are both preparations for Moon exploration.

D.Both of them will present winners with big awards.

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