1 . Running is often tiring and a lot of hard work, but nothing beats the feeling you get after finishing a long workout around the track.

But while it’s long been believed that endorphins (内啡肽) —chemicals in the body that cause happiness—are behind the so-called “runner’s high”, a study suggested that there may be more to this phenomenon than we previously knew.

According to a recent study published by a group of scientists from several German universities, a group of chemicals called endocannabinoids (内源性大麻素) may actually be responsible for this familiar great feeling.

To test this theory, the scientists turned to mice. Both mice and humans release high levels of endorphins and endocannabinoids after exercise. After exercising on running wheels, the mice seemed happy and relaxed and displayed no signs of anxiety. But after being given a drug to block their endorphins, the mice’s behavior didn’t seem to change. However, when their endocannabinoids were blocked with a different drug, their runners’ high symptoms seemed to fade.

“The long-held notion of endorphins being responsible for the runner’s high is false. Endorphins are effective pain relievers, but only when it comes to the pain in your body and muscles you feel after working out,” Patrick Lucas Austin wrote on science blog Lifchacker.

Similar studies are yet to be carried out on humans, but it’s already known that exercise is a highly effective way to get rid of stress or anxiety. The UK’s National Health Service even prescribes (开药 方) exercise to patients who are suffering from depression. “Being depressed can leave you feeling low in energy, which might put you off being more active. Regular exercise can improve your mood if you have depression, and its especially useful for people with mild to moderate (中等的) depression,” it wrote on its website.

It seems like nothing can beat that feeling we get after a good workout, even if we don’t fully understand where it comes from. At least if we’re feeling down, we know that all we have to do is to put on our running shoes.

1. What did scientists from German universities recently discover?

A．Working out is a highly effective way to treat depression.

B．The runner’s high could be caused by endocannabinoids.

C．Endorphins may contribute to one’s high spirits after running.

D．The level of endorphins and endocannabinoids could affect one’s mood.

2. Why did the scientists give mice drugs in their experiment?

A．To find what reduces the runner’s high symptoms.

B．To see the specific symptoms of the runner’s high.

C．To identify what is responsible for the runner’s high.

D．To test what influences the level of endocannabinoids released.

3. What does the underlined word “notion” mean?

A．Effect.

B．Goal.

C．Opinion.

D．Question

4. What can we know about regular workouts according to the UK’s National Health Service?

A．They can help ease depression symptoms.

B．They are the best way to treat depression.

C．They only work for those with serious depression.

D．They can help people completely recover from depression.

2 . 阅读下面材料，根据其内容和所给段落开头语续写一段，使之构成一篇完整的短文。

Last weekend, I went to Mark’s new house near a forest for a little get-together. After lunch when I was chatting with him and his wife Cody, he asked me, “Hey, Thora, have you ever been to a secret spot?” Before I could even finish saying no, Cody and Mark were already at the door with their jackets on. And the next moment we were heading out into the forest with a camera, a fishing net and a plastic bucket (桶).

We walked through the forest along a path by a small river. Breathing the fresh air, we three talked and laughed all the way.

“Hey! What are you guys doing ?” someone suddenly shouted from behind. Mark and Cody’s eyes immediately widened, and without a word they started running. I had no choice but to follow them, getting my shoes wet and dirty with mud. We probably ran for about 10 minutes before Mark and Cody slowed down. I stopped to catch my breath and asked, “Who was that?”

Mark replied, “The most annoying neighbor ever. There’s no telling what could happen if he caught up with us. He is always making fun of us. I dislike him.” We kept walking on for a few more minutes. Then a beautiful lake appeared before our eyes. “Wow! Amazing!” I shouted and could hardly hold back my excitement. The lake was large and the water was deep and blue, looking so peaceful with tall trees around it.

注意：（1）所续写短文的词数应为l50左右；
（2）续写部分分为两段，每段的开头语已为你写好；
Paragraph1:

Looking around, we saw a boat floating by the shore.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Paragraph 2:

“Help! Help! Help!” I was so frightened and cried for help.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

3 . 假设你是李华，最近你发现很多同学有不吃早饭、经常熬夜等不健康的生活习惯。学校校报的英语专栏正在开展以健康生活方式为主题的英语征文活动，就此话题向校报投稿。请根据以下提示信息写一篇英语短文。
1.指出现在部分同学生活不健康的现象
2.结合实际提出具体建议：①饮食习惯 ②体育锻炼。
Dear Editor,
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yours sincerely,

Li Hua

4 . The boy s________ into the classroom without being noticed just now.

5 . The competition attracted over 500 players r________ 20 different countries.

6 . My sister is nine years old, a little bit fat and doesn’t _______ really well at school. She is heavily made fun of and thus has developed some _______ and distrust towards adults, who usually don’t put high hopes in her.

Yesterday we went to an art _______ together. There were paintings from kids with disabilities. My little girl has _______ eyes, for the paintings she liked most were also the best of the show. She also voluntarily helped to _______ the chairs and table for a sharing session（分享会）, painted by herself alongside new friends while I attended the sharing, and _______helped me to do many other things, which doesn’t _______ often at home as she’s usually _______ in her iPad.

We went to a book store. I bought a book written by a mom _______ her journey with her autistic（自闭症的）son. On the bus back home, I briefly ________ the book to my sister, and to my surprise she was truly ________. She kept asking me to tell more stories about this friend in the book who ________ with small things in life. This is the first time I’ve seen her so interested in a ________. Usually when she talks to me, she describes events at school and at home ________ a clear focus. I’m very ________ that the life of an unknown ________ has found its way into this little girl’s heart.

I’m very thankful for the ________ of books, for the beauty that my sister showed to me, and for the time we had together. I pray that I can ________ seeing clearly the wonderful things in her, so that whenever the not-so-kind world puts her ________, I can remind her how truly ________ she has always been.

1.

A．do

B．work

C．run

D．rest

2.

A．appreciation

B．doubt

C．satisfaction

D．dependence

3.

A．investigation

B．interview

C．ceremony

D．exhibition

4.

A．curious

B．particular

C．sharp

D．doubtful

5.

A．deliver

B．design

C．remove

D．arrange

6.

A．simply

B．cheerfully

C．secretly

D．unwillingly

7.

A．happen

B．approve

C．depend

D．assess

8.

A．attached

B．admitted

C．absorbed

D．adjusted

9.

A．describing

B．advertising

C．operating

D．protecting

10.

A．designed

B．introduced

C．sent

D．owed

11.

A．tired

B．skeptical

C．interested

D．negative

12.

A．plays

B．deals

C．meets

D．struggles

13.

A．topic

B．painting

C．story

D．title

14.

A．with

B．for

C．without

D．in

15.

A．disappointed

B．touched

C．defeated

D．puzzled

16.

A．party

B．family

C．student

D．stranger

17.

A．power

B．content

C．subject

D．characters

18.

A．stop

B．keep

C．prevent

D．rid

19.

A．on

B．up

C．off

D．down

20.

A．mild

B．rough

C．wonderful

D．unbearable

7 . Is Managing Kids' Screen Time a Good Idea?

Screen time is a big topic of conversation in today's households, particularly during the pandemic when online education hours have multiplied for many students.    1    They hope to spare their kids from the countless challenges that technology can bring. Yet the challenges of screen time overuse seldom come from kids' devices themselves, but rather from the tense relationships that technology can bring to families.    2    But technology has positive benefits too. Since every child and family is different, managing screen time calls for joint family decision-making.

If parents believe they can manage a child's screen time through adolescence, they are not only fooling themselves but also inviting relationship trouble with their teens. It is a myth to think that parents can or should manage their kids' screen time through authoritarian restrictions, even during elementary school.     3     When children are left out of those decisions, they often become less communicative with parents and siblings. This is the opposite of what parents want to achieve.

    4     From early ages, children are quite capable of understanding that a good life involves awareness and balance. Just as they learn right from wrong, and good from bad, they can also learn to use technology in healthy ways. Learning how to regulate oneself and develop healthy behaviors is one of the primary tasks of childhood and adolescence. What happens when an adult tries to regulate a child is that the child misses out on the opportunity to learn for themselves. Enforced restrictions can also make children feel helpless and less confident.

To be clear, this article is not suggesting that families never use apps or trackers, or that there should be no restrictions on screen time.    5    Parents should give voice to children and involve them in the planning and decision-making process.

A．Of course, there are websites that are unhealthy for kids to access.

B．The alternative is to involve children in decisions that govern screen time.

C．However, every family needs a family media plan between family members.

D．The goal is to see, hear, feel, and understand how children view screen time.

E．To manage children's screen time, parents have invested in apps and trackers.

F．To get children involved, parents should trust and develop kids' self-awareness.

G．What it is suggesting is that parents look at managing screen time in a different way.

8 . 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。
             The Ocean Cleanun has been trying out a system for    1     (remove)plastic from the sea. After running into several    2    (problem),the group has got the system up and working.
             The Ocean Cleanup system is     3    floating barrier. It uses a giant screen that hangs below the water's surface. The screen traps pieces of plastic as they float by.Sea lives can swim safely underneath. The barrier didn't work well when it was drawn out to sea last year.It floated at the same speed         4     the plastic it was meant to catch. Since then, an underwater parachute(降落伞)    5    (add). This slows down the barrier so it can catch the faster-moving plastics. Other fixes were made to prevent plastic from flowing over the top of the barrier.
             The system is being used in an area of the Pacific Ocean     6    (know)as the Great Pacific Garbage Patch now. Some 1.8 trillion pieces of plastic have collected there. The pollution     7    (harm)sea lives and also gets into the food chain.    8    is reported that half of the trash will have been cleaned op by 2025.
             The next challenge is to make the barrier bigger and stronger, so it can gather plastic for a year,after       9     a ship will carry the trash away, It is     10    （actual) not easy.

9 . My wonderful daughter made me a birthday cake this year using her own special combination of creativity and love. It was huge and I ______ myself the biggest piece. With the first ______ I closed my eyes and smiled. It was so     ___ . The ice cream on top was delightfully thick. It had countless calories ______ it was so delicious without being necessarily nutritious. I didn’t mind, ______. I enjoyed every bite and added a few scoops of ice cream _____ . My son, my daughter and I_______ every bit of it. When we were done, our souls were     ____, and dinner was still four hours away. We had followed that wise saying of a     ____ existence: “Life is short. Eat _______first!”

I have spent too many years of my life _______the desserts I was given until everything else was done. Like many people in our society, I thought that _____   came first, duty came second, and joy was somewhere down the_______. It took me a long time to see the _____   truth that: “We work to live but we live to love.” Without love, without laughter, without joy, without goodness, and without all the simple ______ life can bring, our existence becomes a dull and miserable journey.     ____, I finally realized that when you put love first in your life, ______ else tastes so much sweeter.

Don’t put off the simple ______ that life can bring. Don’t put off the beautiful love that you can give. And ______ your love with everyone. You will be amazed at how wonderful ______ will be when you “Live to Love” while you “Work to Live”.

1.

A．cut

B．taught

C．bought

D．stored

2.

A．soup

B．bite

C．view

D．reply

3.

A．soft

B．bitter

C．sweet

D．cold

4.

A．but

B．so

C．or

D．and

5.

A．instead

B．though

C．thus

D．therefore

6.

A．as well

B．above all

C．in total

D．for fun

7.

A．jumped

B．searched

C．finished

D．ignored

8.

A．relaxed

B．cleared

C．injured

D．satisfied

9.

A．spare

B．happy

C．sad

D．balanced

10.

A．rice

B．medicine

C．dessert

D．fruit

11.

A．giving away

B．cutting up

C．leaving out

D．putting off

12.

A．work

B．kindness

C．mercy

D．health

13.

A．list

B．way

C．trouble

D．line

14.

A．complex

B．simple

C．personal

D．hidden

15.

A．disasters

B．gifts

C．hobbies

D．pleasures

16.

A．However

B．Besides

C．Thankfully

D．Surprisingly

17.

A．nothing

B．something

C．anything

D．everything

18.

A．changes

B．joys

C．mistakes

D．differences

19.

A．share

B．mix

C．treat

D．discuss

20.

A．journey

B．volunteer

C．life

D．service

10 . Thanksgiving Day was drawing near. The first grade teacher gave her class a fun_______—to draw a picture of something for which they were_______

Most of the class would_______the holiday with turkey and other traditional goodies of the season, which, the teacher thought, would be the_______of most of her students' art. And they were.

But Douglas made a different kind of picture. He was the teacher's true child of misery, frail and unhappy. One could only guess the_______Douglas felt_______those sad eyes. When asked to draw the picture, he drew a_______. Nothing else.

His abstract image_______the attention of his_______.Whose hand could it be? One child guessed it was the hand of a farmer, because farmers________turkeys. Another________a police officer, because the police protect and care for people. Still others guessed it was the hand of God, for God feeds us. And the discussion went---until the teacher almost forgot the young________himself.

When the children had gone on to other assignments, she________at Douglas's desk, bent down, and asked him whose hand it was. The little boy looked away and________,"It’s yours, teacher."

She recalled the________she had taken his hand and walked with him here and there.________had she said, "Take my hand, Douglas. We will go outside." Or, "Let me show you how to________your pencil." Or "Let’s do this together." Douglas was most thankful for the teacher's hand.

The story________more than thankfulness. It says something about teachers’ teaching and how much it________to the Douglases of the world. They might not always say thanks, but they will remember the hand that________out.

1.

A．design

B．approach

C．challenge

D．assignment

2.

A．determined

B．grateful

C．proud

D．impressed

3.

A．instruct

B．observe

C．introduce

D．paint

4.

A．attempts

B．characters

C．subjects

D．candidates

5.

A．pain

B．delight

C．glory

D．magic

6.

A．over

B．on

C．behind

D．along

7.

A．man

B．hand

C．god

D．turkey

8.

A．attacked

B．appealed

C．withdrew

D．caught

9.

A．classmates

B．competitors

C．teachers

D．roommates

10.

A．measure

B．kill

C．raise

D．secure

11.

A．approved

B．arranged

C．ignored

D．suggested

12.

A．barrier

B．artist

C．writer

D．applicant

13.

A．paused

B．stayed

C．assisted

D．persuaded

14.

A．rejected

B．laughed

C．whispered

D．shouted

15.

A．dreams

B．pressures

C．stories

D．times

16.

A．How much

B．What if

C．How often

D．How about

17.

A．gather

B．hold

C．carry

D．guide

18.

A．speaks of

B．fits in

C．argues about

D．looks into

19.

A．symbolizes

B．sounds

C．annoys

D．means

20.

A．reaches

B．points

C．takes

D．throws