3 . Some people have a dependency on an afternoon nap.     1     It can also help them feel more alert (机敏的)for the afternoon ahead. Even Boris Johnson supposedly favors a power nap during his work day. Winston Churchill, Albert Einstein, and Leonardo Da Vinci were all famous nappers.

Napping is a great way to feel more rested and alert-and some research shows it car benefit our cognitive function.     2     If you need to be alert right after waking up, so-called "power naps" of 10-30 minutes are recommended.

While short naps are great for increasing energy, longer naps are more beneficial for learning. According to the research, they improve activation of the hippocampus—an area of the brain important for learning and memory.     3    

    4     It's possible that they help the brain clean up sleep-inducing (诱导睡眠的)waste products that would otherwise hold up brain activity, and that they refill the brain's energy stores. Short naps may also help improve your attention by letting particularly sleepy areas of the brain recover, hence preventing instability in the brain's networks.

Although napping has many positive short-term effects, they are not recommended for people who suffer from insomnia（失眠症）. Because naps decrease sleepiness, they may make it harder to fall asleep when going to bed in the evening.     5     For instance, if the best performance is needed instantly afterwards, don't nap, as it may take some time to fully wake up.

A．But many more prefer not to

B．It is to catch up on lost sleep.

C．How has napping become so popular?

D．Naps should also be avoided in some situations

E．Why short naps are so beneficial is not well understood

F．However, you may want to consider how long you have to nap.

G．A one-to-two-hour nap benefits both motor skills and memory abilities.

4 . At the end of a long week, Mike and I were going to invite friends for dinner. Just before I got home, Mike said he had to stay late at work. _________, I was on my own to get everything ready.

Already running late myself, I started feeling _________ as I drove to pick up Haydn and Michael. I rushed them into the car and informed them we were making a few _________ before heading home and that they needed to help me _________ the house. Both of them started _________immediately. I turned and gave them a(n) _________ with my eyes that I was not in the mood to listen. They crossed their arms, looking _________. For the next hour I _________ the boys from one place to the next. The more I needed them to _________, the more distracted (分心的) they became. My __________ was wearing thin.

Just as we finished our last errand (差事), the boys reminded me to stop at the __________store to buy crickets (蟋蟀). Yes, I had promised them. Fifteen minutes later, we were back in the car with some new __________: one hundred live crickets in a clear bag.

I pulled into the driveway with only 45 minutes left before my guests arrived. I started barking orders at the boys, but all they __________ was placing the crickets into their little cage. __________, the next time I looked up, the crickets were jumping all over my kitchen. I screamed and climbed onto a chair to __________ them.

As I watched the boys running after the crickets with laughter, I realized I had only two__________. I could continue feeling angry, or just let it go and __________ the funny moment. I chose joy. I jumped off the chair and __________ them. It took us fifteen minutes to catch all the little guys. Then they __________ helped me prepare the dinner. We were happy and had a great dinner party.

Things go wrong from time to time. We can't stop that, but we can decide how we're going to __________ things. Try to think of something that makes you happy. You'll find something if you try.

1.

A．However

B．Therefore

C．Moreover

D．Instead

2.

A．sick

B．happy

C．upset

D．guilty

3.

A．stops

B．promises

C．remarks

D．updates

4.

A．share

B．tidy

C．repair

D．paint

5.

A．worrying

B．doubting

C．quarreling

D．complaining

6.

A．comment

B．warning

C．explanation

D．smile

7.

A．annoyed

B．amazed

C．scared

D．concerned

8.

A．invited

B．followed

C．dragged

D．approached

9.

A．bargain

B．ргерагe

C．revise

D．hurry

10.

A．influence

B．popularity

C．patience

D．confidence

11.

A．pet

B．grocery

C．convenience

D．department

12.

A．diners

B．consumers

C．passengers

D．families

13.

A．relied on

B．acted on

C．lived on

D．focused on

14.

A．In particular

B．Even worse

C．By the way

D．All in all

15.

A．escape

B．frighten

C．search

D．attract

16.

A．goals

B．beliefs

C．parties

D．choices

17.

A．enjoy

B．forgive

C．celebrate

D．memorize

18.

A．praised

B．joined

C．defended

D．impressed

19.

A．simply

B．cautiously

C．practically

D．enthusiastically

20.

A．forget

B．ргоvе

C．treat

D．select

6 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Freedom above snow

With the Tokyo Summer Olympics behind us, people are turning their eyes to the 2022 Beijing Winter Olympic Games,     1     will start in five months. Freestyle skier Gu Ailing, 18, looks to be one of the superstars of the event.

Born to an American father and a Chinese mother, Gu     2     (decide) to compete for China in the 2022 Winter Olympics in June 2019. Just two months later, she bagged her first gold medal for China at the Australia New Zealand Cup.     3     strength continued to grow as she won one bronze and two gold medals at the International Ski Federation (FIS) Snowboard and Freeski World Championships in March.

People say she is     4     (talent). But Gu says that talent counted for (占据) “only 1 percent” of her wins, adding that her hard work is     5     counts. While going to school in San Francisco, Gu could only practice on weekends. She spent eight hours    6     (go) to the ski hill and back, doing her homework on the way and making full use of her time at the hill     7     (practice) skiing.

Gu said she wants to encourage more girls in China to try skiing and other extreme sports , many of which have only been known there for 20 years, according to the Olympics website. She said skiing gives her “    8     (free) and creativity”, especially when she perfectly controls her body and does tricks that others cannot do.

Now she     9     (prepare) for the Winter Olympics as a full-time athlete. “Of course, I want to win medals and even golds,” Gu said. “But what’s     10     (important) is to bring out my own style, enjoy the game and love the sport.”

7 . An artistic student from a school near Rochester, New York decided to get down to a photography project of a different kind.

Each day, Chaz Rorick from Rush-Henrietta High School decided to upload an Instagram photo of himself imitating(模仿) a US president alongside a photo of the actual president.

Many would agree the impressions are quite familiar.

Rorick’s project started when he realized the set of clothes he wore looked like that of President Harry Truman while watching a documentary. He took a photo of himself, placed it next to one of Truman, and posted it on Instagram.

He had an instant fan: his father. “The next day I did Roosevelt for fun, but by the third picture I did one a day, no matter how busy I was. My friends enthusiastically encouraged me to carry on with such strange and unusual things,” the high school junior told Mashable.

According to Rochester Homepage.net, Rorick said of his project, “It was not too much work, maybe half an hour a night doing it, except for the ones with wigs(假发) and mustaches. I cut out paper for it. I taped cotton to my head.”

“It was fun though,” he added. “All my friends supported it. My parents supported it. History teachers are crazy about it.”

Some people hold the view that Rorick’s photos are creative, entertaining and educational. However, others think everyone can dress up, too, but they have to admit that with all the things out there that Rorick could do in his spare time, there’ s nothing wrong with this.

1. When did he have the idea of a photography project?

A．When he was uploading something.

B．When he was choosing his clothes.

C．When he played with his father.

D．When he was watching a documentary.

2. Which of the following can be used to describe Rorick?

A．Artistic and lonely.	B．Artistic and creative.
C．Creative but unpopular.	D．Popular and wealthy.

3. What does Rorick think of the photography project?

A．It takes up too much of his time.	B．It won’t attract him anymore.
C．It is easy to do.	D．It has been done by other.

4. Which of the following is TRUE about Rorick’s history teacher?

A．He likes his photography project very much.

B．He thinks little of his photography project.

C．He is strong against him.

D．He thinks he is crazy.

9 . NASA selects university teams for space exploration

The moon's permanently shadowed areas, nearly 384, 400 kilometers away from home, are the closest water source outside the earth. The craters have been dark since billions of years ago. But now with student-developed technologies, more about them can be discovered.

Through the competitive Breakthrough, Innovative and Game-changing (BIG) Idea Challenge and the Space Grant project, NASA has awarded nearly $ 1 million to eight university teams. They will build sample lunar payloads (装备) and demonstrate innovative ways to study the moon's darkest areas.

"Its an exciting time for NASA and students across the country," said Drew J. Hope, Program Manager of Game Changing Development program. "Thanks to our partnership with the Office of STEM Engagement, this is the most money NASA has awarded in a student challenge directly connected to Artemis."

The chosen teams will work out ways to gather data in and around the craters, generate wireless power for future infrastructure, and enable autonomous mobility even in the most extreme environments. The research results could benefit NASA's Artemis Program and be used to study the moon ahead of a human landing in 2024 or help establish   sustained presence by 2028. Each team will receive different amounts of grants, based on the concept and budget they propose. They will develop and test the technologies in simulated(模拟的environments with the awards during the following 10 months, showing they are prepared for a possible lunar mission as early as 2023.Then in November 2020, a panel of NASA and industry experts will examine the teams' research and development results at a face-to-face design review.

"One of the most exciting things about this challenge is that several of the concepts, if proven to be valuable as a result of these awards, could eventually be integrated and operated together on the surface of the moon," according to Chad Rowe, Acting Manager of Space Grant project." These students are part of the Artemis generation and they are helping fulfil NASA'S mission needs today, while developing relevant hands-on experience that will prepare them for aerospace careers after graduation.

1. What are the university teams supposed to do?

A．Explore the mystery of space.	B．Participate in a competition.
C．Develop technologies to study the moon.	D．Challenge NASA'S Artemis program.

2. What does the underlined word "grants" in Paragraph 4 most probably mean?

A．Aid.

B．Funds.

C．Tests.

D．Chances.

3. When will the students' achievements probably be first put into use?

A．2020.

B．2023.

C．2024.

D．2028,

4. How can the students benefit from the project?

A．They can land on the moon

B．They can get paid while doing the job.

C．They can work In NASA after graduation.

D．They can gain experience for their future aerospace careers.