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On March 14, math and science lovers around the world celebrated a special day: Pi Day.

Pi is equal (平等的) to about 3.14, but the number is endless. It is sometimes written in Greek. With the help of computers, mathematicians have been able to work pi out to over a trillion (万亿) decimal (小数的) places, but there is still no end to the number. This makes pi confusing, even for the most famous scientists and mathematicians.

Pi Day is celebrated around the world on March 14, since how we write this date, 3/14, looks just like the number pi.

For some people, the attraction of Pi Day goes far beyond math and science. Pi shows up throughout popular culture. You can see it in movies, comics, music and more. “In modern movies, any time the filmmaker wants to evoke (唤起) a sense of mystery, often the symbol pi is used,” said David Blatner, a Jewish-American writer of The Joy of Pi.

People also love trying to memorize the digits (数字) of pi and competing against others to see who can remember the most. Many teachers hold class contests to see how many numbers their students can memorize. The Guinness World Record for reciting (背诵) the most digits of pi is held by Lyu Chao of China, who successfully recited pi out to nearly 67,890 decimal places.

Above all, Pi Day is about having fun with the number. People celebrate Pi Day by eating or throwing pie and with fun pi-related games and activities. In 2016, Princeton, New Jersey, held a birthday party for Albert Einstein whose birthday also falls on March 14. There was also a “Walk a Pi Event” where people walked 3.14 miles together. Just like the number itself, the possibilities for Pi Day are truly endless.

根据短文内容，判断句子正（T)、误（F)。
1．With the help of the computers, pi can be worked out with an end to the number.
2．Pi Day is celebrated on March 14th because the date 3/14 looks like the number pi.
3．If the filmmakers want to create a sense of mystery, they often use the symbol pi in the movies.
4．The Guinness World Record for reciting the most digits of pi is held by a Chinese named Lyu Chao.
5．Pi Day is strictly a mathematical celebration without any fun or games about it.

Yang Jun’ao, a 16-year-old student from No. 1 Middle School in Nanxian County, Hunan Province, invented a “lotus root harvesting robot (采藕机器人)”.

“I got the idea when I saw my grandmother, in her 70s, working hard to harvest lotus roots under the hot sun,” Yang said. Sometimes, his grandmother would badly hurt her fingers using her harvesting tools.

To make things easier for his grandmother, Yang thought of creating a machine that could automatically (自动地) harvest lotus roots. With help from his teacher Hong Wei. Yang spent nearly a year building a model of the machine. The robot moves on its own through the muddy field. It uses image recognition (识别) to find roots that are ripe (成熟的) by looking at the color of the lotus leaves. The robot’s arm then cuts the lotus roots without hurting them.

During the invention process, Yang faced challenges like collecting parts for the model, putting them together and using a hot glue gun for bonding. “The first time I used a hot glue gun, my hands were shaking,” Yang laughed. At first, he planned to use rotating blades (旋转叶片) for harvesting lotus roots, but it was hard to find them, so he used more common blades instead.

When Yang showed the machine to his grandmother, she was happy and gave helpful suggestions for improvement. She suggested using the audio player to show the machine’s location in dense (稠密的) lotus leaves. “My grandmother’s advice reminded me that any technological invention must be practical to have true value,” said Yang.

Although Yang still needs to make improvement, like finding cheaper ways to make the machines, his teacher Hong praised Yang’s creative thinking and dedication (致力) to helping his hometown.

根据短文内容，选择最佳答案。
1．Why did Yang invent the lotus root harvesting robot?

A．Because he could use it when he worked in the field.

B．Because he needed to do something with his teacher.

C．Because he wanted to make his grandmother’s work easier.

D．Because be was interested in trying something new.

2．What difficulty isn’t mentioned during the invention process?

A．Collecting parts for the model.	B．Putting all the parts together.
C．Using a hot glue gun for bonding.	D．Spending nearly a year finishing the work.

3．What does the underlined word “practical” in the passage probably mean?

A．Expensive.

B．Useful.

C．Enjoyable.

D．Challenging.

4．Which is the right order of Yang Jun’ao’s experience?
① Yang decided to invent an automatic machine.
② Yang’s grandma had to work under the hot sun.
③ His grandma was very happy and gave him some good advice.
④ He would work hard to improve the machine.

A．①③②④

B．①③④②

C．②①④③

D．②①③④

5．What could be the best title of the passage?

A．A creative invention.	B．A smart grandmother.
C．A brave boy.	D．A hard job.

Winter sports in China in 2022 ●347 million people across the country take part in winter sports. ●46 million of them are under 18.
A survey about winter sports China Youth Daily surveyed 1000 people: 1. Cheering for players at the Beijing Winter Games. 2. Trying out skiing or skating. 3. Buying winter sports clothes and tools. 4. Taking winter sports trips around China. 5. Taking part in winter sports training.	Some important years: 1953: China’s first National Ice Sports Games took place in Harbin. 1957: China’s first National Ski Games were held in Tonghua, Jilin. 2002: China won its first gold medal in the Winter Olympics. 2022: China held the Winter Olympics in Beijing and Zhangjiakou for the first time and won 9 gold medals.

根据短文和图表内容，选择最佳答案。
1．________ took part in winter sports in Northern China in 2022.

A．347 million

B．46 million

C．161 million

D．186 million

2．About ________ tried out skiing or skating in 2022.

A．540

B．490

C．310

D．290

3．According to the survey, the least popular activity among people is to ________.

A．take part in winter sports training	B．buy winter sports clothes and tools
C．take winter sports trips around China	D．cheer for players at the Beijing Winter Games

4．China won its first gold medal ________ in the Winter Olympics.

A．in 1953

B．in 1957

C．in 2002

D．in 2022

5．We can probably read the text in the newspaper— ________.

A．Star Stories

B．Sports World

C．School Life

D．Science Study

阅读短文，掌握其大意，然后从每小题所给的四个选项中选出一个最佳答案。

Every child has a hero in his heart, and so do I. My hero is my dad, because he is brave, skilled, and respectful.

I know many people say their dads are their heroes, but my dad ________ me about becoming a man, which is ________ important for a young boy.

Respect goes a long way with my dad, as does patience. As an electrician (电工), my dad must ________ people every day, some of whom are nice and some are not. Anyway, he ________ his good attitude (态度).

Dad is not afraid of many things, or if he is, he doesn’t tell me ________ he wants to seem brave. He may not be a big man but since he works with his hands all day, he is very strong. Dad works outdoors in all kinds of ________ but the worst thing he has to do is to climb up and work in an attic (阁楼) in the middle of the summer with high temperatures. Trust me, this is the ________ place you will experience as an electrician and when you come back ________, what is in your lungs (肺) will make you ________ for hours.

My dad and I have a very good ________. We talk about almost everything. We go bike riding, fishing, and everything a dad and son would do. My dad and I enjoy hiking most because it gives us time outdoors together and there is nothing like that. He has ________ and taught me everything I need to know about ________.

I am ________ to be the son of Leo C. People come up to me all the time to tell me I have a good dad. It makes me feel ________ that a lot of people think so ________ of him. He is a good teacher of my life and would do anything for me. This is why my father is my hero.

1．

A．manages

B．teaches

C．worries

D．reminds

2．

A．specially

B．especially

C．nearly

D．hardly

3．

A．look after

B．deal with

C．wait for

D．search for

4．

A．sells

B．makes

C．hides

D．keeps

5．

A．though

B．unless

C．until

D．because

6．

A．positions

B．instructions

C．conditions

D．invitations

7．

A．coldest

B．highest

C．best

D．hottest

8．

A．down

B．over

C．inside

D．up

9．

A．rest

B．cough

C．drink

D．sleep

10．

A．relationship

B．friendship

C．agreement

D．development

11．

A．learned

B．realized

C．shown

D．collected

12．

A．animals

B．nature

C．study

D．skills

13．

A．excited

B．upset

C．surprised

D．proud

14．

A．well

B．good

C．nervous

D．nicely

15．

A．easily

B．seriously

C．highly

D．lightly

根据对话内容，运用所给的句子选项补全对话。选项中有一项是多余的。
Li Lin: You look worried. 1．
Xu Lei: The English Listening and Speaking Test is coming. And I am a little nervous.
Li Lin: Come on, just take it easy!
Xu Lei: I remember you didn’t use to be good at listening. 2．
Li Lin: By practicing more.
Xu Lei: Maybe you are right. But sometimes I can’t follow what the speaker says. 3．
Li Lin: Of course. First, you shouldn’t listen word by word, but listen for the key words.
Xu Lei: Good idea. 4．
Li Lin: I think it is useful to look through the questions before listening.
Xu Lei: Oh, that is an easy way to get the right answers.
Li Lin: And the most important is that you should be careful while listening.
Xu Lei: I know why you have made great progress in listening.
Li Lin: Yeah!5．
Xu Lei: That’s for sure! Let’s work hard for the Senior High School Entrance Examination together.
Li Lin: That’s a deal! And I hope both of us can get into our dream high schools!

A．Could you please give me some advice?

B．Yes, I am weak in listening and often got poor grades.

C．What else should I pay attention to?

D．What’s the matter?

E．How do you make so much progress?

F．After all, our efforts will pay off.

—Excuse me, could you please tell me ________?
—Go along Huaguang Street, and you can see it across from the school.

A．when can I get to the bookstore	B．how I can get to the bookstore
C．what could I but the bookstore	D．where I can get to the bookstore

Tom was very busy so he had to ________ our invitation.

A．show up

B．turn down

C．turn up

D．cut down

I am glad to hear that Metro Line 6 ________ in Changchun last month.

A．will be finish

B．was finished

C．finished

D．have finished

His speech on how to be a good volunteer was ________ wonderful that we couldn’t stop cheering for him.

A．very

B．such

C．too

D．so

The Palace Museum is the most surprising place ________ I have ever been to.

A．which

B．what

C．that

D．where