1 . For many, Labor Day weekend signals the end of summer and an opportunity to host a socially-distanced barbecue (an outdoor meal). But this national holiday—celebrated every year in the United States and Canada on the first Monday in September—has revolutionary (革命性的) origins.

By the late 19th century, the Industrial Revolution had made working life miserable for people around the world. In many places, workers toiled for at least 12 hours a day six days a week in mines, factories, railroads, and mills. This holiday actually originated in the US on May 1, 1866, in what came to be known as the Haymarket Riot, workers flooded Chicago streets to demand an eight-hour workday.

It would take another conflict in the American Midwest to make Labor Day a national holiday. On May 11, 1894, workers at the Pullman Palace Car Company, a railroad car manufacturer near Chicago, went on strike to protest their low wages and 16-hour workdays. In August 1893, James Kyle introduced federal legislation (立法) to make Labor Day a public holiday, but for ten months the legislation was put on hold. To quiet the strikers and their supporters, the Senate quickly passed the bill on June 22. The bill passed the House four days later and President Grover Cleveland signed it into law on June 28, 1894.

The holiday is more information May Day labor celebrations. Many observers relax at home or head to outdoor recreational activities, such as boating, barbecues, and camping. It may also be marked with fireworks shows and other events. Labor Day has also become associated with retail sales, as many shop owners try to take advantage of the customers’ day off. It is one of the largest sales events of the year. meaning retail employees actually have to work more on this day. Parades are the most common model of celebration, which often feature processions of labor groups.

1. What do we know about the workers in the late 19th century?

A．They were paid well.	B．They had long workdays.
C．They often had a barbecue.	D．Their contributions were recognized.

2. Which can replace the underlined words “put on hold” in paragraph 3?

A．Put off.

B．Introduced.

C．Got through.

D．Protected.

3. When did Labor Day become an official holiday throughout America?

A．On May 1, 1886.

B．On August 22, 1893.

C．On May 11, 1894.

D．On June 28, 1894.

4. What’s the last paragraph mainly about?

A．The origins of Labor Day.	B．The labor groups achievements.
C．The ways to celebrate Labor Day.	D．The official activities on Labor Day.

3 . The benefits of regular exercise are well documented but there’s a new bonus to add to the ever-growing list. New researchers found that middle-aged women who were physically fit could be nearly 90 percent less likely to develop dementia in later life, and as they did, it came on a decade later than less sporty women.

Lead researcher Dr. Helena Horder, of the University of Gothenburg in Sweden, said : "These findings are exciting because it’s possible that improving people's cardiovascular （心血管的）fitness in middle age could delay or even prevent them from developing dementia. "

For the study, 191 women with an average age of 50 took a bicycle exercise test until they were exhausted to measure their peak （最大值的） cardiovascular capacity. The average peak workload was measured at 103 watts.

A total of 40 women met the criteria for a high fitness level, or 120 watts or higher. A total of 92 women were in the medium fitness category; and 59 women were in the low fitness category, defined as a peak workload of 80 watts or less, or having their exercise tests stopped because of high blood pressure, chest pain or other cardiovascular problems.

These women were then tested for dementia six times over the following four decades. During that time, 44 of the women developed dementia. Five percent of the highly fit women developed dementia, compared to 25 percent of the women with medium fitness and 32 percent of the women with low fitness.

"However, this study does not show cause and effect between cardiovascular fitness and dementia, it only shows an association. More research is needed to see if improved fitness could have a positive effect on the risk of dementia and also to look at when during a lifetime a high fitness level is most important. " She also admitted that a relatively small number of women were studied, all of whom were form Sweden, so the results might not be applicable to other groups.

1. What is on the ever-growing list mentioned in the first paragraph?

A．Positive effects of doing exercises.

B．Exercises suitable for the middle-aged.

C．Experimental studies on diseases.

D．Advantages of sporty woman over man

2. Why did the researchers ask the women to do bicycle exercise?

A．To predict their maximum heart rate.

B．To assess their cardiovascular capacity

C．To change their habits of working out

D．To detect their potential health problems

3. What do we know about Dr Horder's study?

A．It aimed to find a cure for dementia.

B．Data collection was a lengthy process.

C．Some participants withdrew from it.

D．The results were far from satisfactory.

4. Which of the following is the best title for the text?

A．More Women Are Exercising to Prevent Dementia

B．Middle-Aged Women Need to Do More Exercise

C．Fit Women Are Less Likely to Develop Dementia

D．Biking Improves Women's Cardiovascular Fitness

4 . When asked what his father did for a living, Mike explained to his kindergarten teacher that “he steals things, but it’s OK, because he gets paid to do it. ”

He isn’t wrong. His father is a hacker(黑客), who is proud of his job, just like doctors are proud of the work they do. Thanks to security researchers’ hacking practices, leaks in a new version of the most common Wi-Fi code standard(WPA3)were found before criminals could use them to break into home and business networks. In another case, criminals found an unknown weakness in Google’s Android operating systems before security researchers did, giving the bad guys full control of more than a dozen phone models.

However, finding Mike’s father’s personalized plates for his car with the word ‘HACKING’, an employee of the Texas Department of Motor Vehicles quickly took them away, claiming that a license plate displaying “HACKING” publicized criminal activity. While this reaction really isn’t the fault of the well-intentioned employee, it’s a sign of how a deeply rooted misrepresentation of his profession has created a fixed wrong image. It seems that the way that hackers are described in Hollywood has contributed to the word ‘hacker’ paralleling ‘criminal’, where hackers are often referred to as figures in dark rooms engaged in illegal activity while tapping at keyboards.

But actually, hacking is just an activity. What separates any activity from a crime is, very often, permission. People are free to drive, but they do not have permission to drive 150 miles per hour, which is a criminal offense. Since a driver is just a driver, why must a hacker be a criminal? Someone who engages in the illegal use of hacking should not be called a ‘bad hacker’ but a ‘cybercriminal’. Contrary to popular belief, most hackers like Mike’s father undoubtedly play an important role in keeping companies and people safe.

1. What did Mike’s son think of Mike’s job?

A．Admirable.

B．Amazing.

C．Acceptable.

D．Annoying.

2. What does the second paragraph mainly talk about concerning the hackers’ job?

A．Its weakness.

B．Its importance.

C．Its variety

D．Its security.

3. Why does the writer mention ‘Hollywood’ in paragraph 3?

A．To entertain the renders.	B．To question the employee’s claim.
C．To clarify the concept of hacking.	D．To trace the wrong image of hackers.

4. What message does the author really want to convey in the text?

A．Hacking mostly counts.	B．Hacking is actually a crime.
C．Hacking is popular with people.	D．Hacking needs licenses.

5 . “Your playful days are over,” my brother said to me when he knew I was going to be a Senior One student. Then he continued telling me that senior school life was boring because I had to do a large amount of homework every day. The subjects were much more difficult than those of junior school.

I stepped into the school gate with a nervous heart. However, I was surprised to find what I experienced there was completely different from what my brother had told me.

The teachers gave excellent lessons in their own special way. They talked with me in a natural and fair way, as if I was an adult. All of them are so knowledgeable (学识渊博) and they not only explained the contents of textbooks but also provided extra information from other sources. Every word they said in classes made me so excited and interested that I had a strong desire to take in as much as I could.

In fact, my playful days were not over at all in senior school. There were many kinds of activities I could take part in. For example, sports meetings, the art festival, English corner, outing and so on. Best of all, generally, students organized the activities rather than teachers. Through this process, I improved my leadership abilities and communication skills. I've become mature (成熟的). I am not a kid any more.

Now if anyone asks me: “Through your process of growing up, which part is most impressive up till now?” Well, the answer will absolutely be my “senior high school life”.

1. How did the writer feel when he started his senior high school?

A．Very excited.	B．A little worried.
C．Quite relaxed.	D．Embarrassed.

2. What was the writer's general impression of his teachers?

A．Strict and organized.	B．Modest and hardworking.
C．Learned and easy going.	D．Helpful and kind-hearted.

3. What has the writer learned by joining in different after-class activities?

A．Reading and writing skills.	B．The understanding of textbooks
C．Leadership and social skills.	D．Doing housework.

4. What can you learn from the last paragraph?

A．His senior school life is the most memorable.

B．Senior school life was boring and tiring.

C．He will no longer believe in his brother.

D．The writer did well in all his subjects.

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。

Luosifen(螺蛳粉) became the most popular Chinese New Year’s snack this year on Tmall and Taobao, as Chinese people prepare for a stay-at-home holiday due     1     the COVID-19 pandemic(流行病).

    2     the traditional Laba Festival, which fell on January 20 this year, Tmall and Taobao     3    (start) a one-month-long “2021 Online Chinese New Year’s Goods Festival”     4    (help) people across the country easily buy some seasonal specials.

    5    (tradition), dried fruits, sweets, and pastries are a must-buy “three-piece set” snacks for the Chinese New Year.     6     this year, Luoshifen took their place. According to Tmall and Taobao, on the first day of the online festival they sold Luosifen 15 times more than last year, with the number of buyers     7    （grow）nine times year on year. The     8    (large) group of buyers was the post-90s.

Self-heating hot pots was only second to Luosifen on the most popular goods list by Tmall and Taobao. On Wednesday, nearly 200,000 buyers placed orders for these pots,     9    （compare）to less than 20,000 last year.

People celebrate the Spring Festival by buying New Year’s goods, getting together and sending greetings,     10     may raise the risk of spreading the coronavirus. So the online Chinese New Year’s Goods Festival helps people spend a happy Spring Festival at home.