1 . In July 2021, astronauts on board the International Space Station (ISS) planted pepper seeds as part of an experiment to test which plants could be successfully grown in space. The peppers were harvested four months later, and the team celebrated with a party and taste test.
For astronauts living mostly off prepackaged foods for months at a time on the ISS, fresh and flavourful produce is welcomed. With long missions to the Moon and Mars in focus, NASA is working to find sustainable ways for astronauts to enjoy fresh foods, which will add key nutrients to their diets and improve their state of mind.
Astronauts have grown radishes, zinnias and a variety of lettuces on board the ISS before, but this is the first time they grew peppers, which posed a new challenge, reports Elizabeth Howell for Space. com.
Biologists at the Kennedy Space Centre spent two years picking the perfect pepper. They wanted to try peppers because they’re a great source of vitamins and nutrients, and they can be eaten raw or cooked. Plus, peppers are fairly low maintenance to grow.
In June, a carrier delivered supplies to the ISS along with a package of 48 pepper seeds. Astronauts on board planted the seeds in a microwave oven-sized growing container. The conditions in it—such as lighting, watering and air circulation—were controlled by a crew based at the Kennedy Space Centre. On board, the astronauts collected data and offered feedback on the flavour of the peppers.
“This is important because the food astronauts eat needs to be as good as the rest of their equipment,” LaShelle Spencer, a plant scientist at NASA, said over the summer. “To successfully send people to Mars and bring them back to Earth, we will not only require the most nutritious foods, but the best tasting ones as well.”
1. Why did astronauts attempt to plant pepper in space?A.There were no enough food for astronauts. |
B.Only pepper can grow in space. |
C.Pepper can grow better than other plants. |
D.Humans wanted to test which plants can grow in space. |
A.It needn’t too much later care. | B.Its nutrients are the highest. |
C.The vitamins in it are the most. | D.It improves their state of mind most. |
A.Package. | B.Container. | C.Seed | D.Microwave. |
A.The idea that pepper is grown in space is silly. |
B.Astronaut need special nutrition to keep the best state of mind. |
C.Pepper can’t be eaten cooked in space but it can be eaten raw. |
D.It is the carrier that is in charge of sending feedback on the peppers. |
Mount Emei,World Cultural and Natural Heritage Site in China,
The Leshan Giant Buddha, lying at the eastern foot of Mount Emei,
Mount Emei with its natural and cultural values well interconnected is attracting
1. 写信目的;
2. 你的建议;
3. 你的祝愿。
注意:1. 写作词数应为80左右;
2. 请按如下格式在答题卡的相应位置作答。
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4 . How to End a Video Game Addiction
Playing video games casually can be a great way to relax and have fun. But if you’re so absorbed in gaming that it feels like it’s taking over your life, you may have a video game addiction.
Give yourself a strict time limit for daily play.
Health experts recommend that school-aged kids should spend no more than 2 hours a day in front of a screen. If you’re struggling with too much gaming, try setting specific limits for yourself on how long you play each day.
Keep gaming devices out of your bedroom.
If you have a computer, or other gaming device in your room, you may be attracted to stay up all night playing instead of getting the sleep you need.
If you play games on your phone or on your computer, you can install (安装) apps that limit your play time or set alarms on some apps. Some apps can limit your access to specific games, while others will lock you out of your device altogether during a set time.
Distract yourself with other fun activities during the day.
You’ll be less likely to get stuck on gaming if you have other things to keep you busy.
A.Set an alarm clock to remind you. |
B.Try apps to block your access to games. |
C.Fortunately, there are things you can do to get your addiction under control. |
D.Let your friends know that you’re trying to cut back on how much time you spend gaming. |
E.Make your room a screen-free zone so you don’t get caught up in late-night gaming. |
F.For example, you might limit yourself to no more than half an hour of play each day. |
G.Take the opportunity to rediscover activities you used to enjoy, or try something new! |
1. Where did the woman know about the car?
A.On the Internet. | B.In the newspaper. | C.In a road advertisement. |
A.The radio. | B.The tires. | C.The air conditioner. |
A.500 dollars. | B.450 dollars. | C.400 dollars. |
A.Foreign languages. | B.Information technology. | C.Hotel management. |
7 . When preparing for a training run in Smyrna, Georgia, 24-year-old amateur (业余的) boxer Bilal Quintyne noticed an older woman sitting in a wheelchair by the side of the road. The chair was
“She kind of had a(n)
The woman, 67-year-old Belinda Whitaker, told him that she had been there for 45 minutes since her wheelchair motor stopped working. But
So she asked Quintyne, “Would you call someone to help?”
“I’ll do you one better,” he said. “I’ll
Whitaker’s home was a 30-minute walk, and the wheels on the 360-pound chair had seized up(卡住), making it harder to push for the first part of the
By the time Quintyne got to Whitaker’s home, he was
Then Quintyne
Quintyne said, “I don’t see myself as a superhero. I’m
To Willingham, Quintyne’s act offers a
A.stuck | B.threatened | C.burnt | D.torn |
A.interesting | B.helpless | C.calm | D.disappointed |
A.according to | B.in favour of | C.instead of | D.apart from |
A.aid | B.advice | C.money | D.food |
A.protect | B.push | C.drive | D.fly |
A.project | B.programme | C.journey | D.competition |
A.celebrating | B.laughing | C.shouting | D.filming |
A.leaving | B.complaining | C.whispering | D.sweating |
A.posted | B.delivered | C.drew | D.published |
A.hit | B.hope | C.stress | D.failure |
A.also | B.never | C.just | D.always |
A.choice | B.gift | C.model | D.reason |
A.excuse | B.story | C.note | D.message |
A.sharing | B.visiting | C.ordering | D.recording |
A.mislead | B.persuade | C.force | D.encourage |
8 . Public service advertising is designed to inform the public on issues that are frequently considered to be in the general best interests of the community at large. Typically, it reflects a political viewpoint, philosophical theory, religious concept or humanitarian notion (人道主义观念). It is also commonly referred to as a public service announcement (PSA) or a community service announcement (CSA). The ads are usually broadcast on radio or television, but may also appear in newspapers or magazines. They are common in industrialized countries throughout the world.
PSAs are commonly aimed at changing public attitudes by raising awareness about particular issues. Health, conservation and safety themes are prevalent in many PSAs. The public service advertising campaigns are often sponsored (赞助) by trade associations, civic (市政的) organizations, non-profit institutions or religious groups.
Most public service advertising involves joint efforts of the private and public sectors (部门). Non-profit groups and government agencies commonly team up with private mass media, promotion and advertising firms to produce spots for radio, television and print media. Most commonly, the non-profit agency creates the message and an advertising firm develops the campaign, polishes it to meet industry standards and plans its distribution, all free of charge. Television and radio stations usually broadcast these ads at no charge, and magazines and newspapers usually publish them for free as well.
In recent years, it has become commonplace for U. S. television stations to feature public service advertising spots immediately following a broadcast that has focused on an issue considered sensitive and of concern to many members of the general public. These PSA broadcasts generally offer addresses, Web sites and toll-free telephone numbers for information sources. Some of the topics focused on in the PSAs have included child abuse, AIDS and civil rights.
1. What do PSAs mainly intend to do?A.Sell more products through some special ways. |
B.Change consumer’s attitudes through media. |
C.Improve people’s ideas about special issues. |
D.Make more famous stars known to the people. |
A.He thinks it good to make them. |
B.He is against the idea of them. |
C.He is curious about the idea of them. |
D.He thinks they are completely to make money. |
A.Widespread. | B.Special. | C.Strange. | D.Severe. |
A.PSAs have been accepted by all the people in the world. |
B.PSAs will make big profits for trade associations. |
C.PSAs involve various topics in many different areas. |
D.PSAs are mainly broadcast on television currently. |
A.In a church. | B.At the beach. | C.In a beautiful garden. |
A.She was told the wrong way. |
B.She took a wrong turn herself. |
C.She didn’t buy a map of the city. |