1 . 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

2 . These days, short videos have got millions of views online. Many people create short videos on popular video apps like Douyin and Kuaishou. You can even add music and special effects to your videos. The videos are 15 seconds to a few minutes long. They show people doing activities like cooking, exercising and singing.

Teenagers especially enjoy these videos. More than 50 percent of students in Grade 10 and Grade 11 said they enjoyed watching these short videos. About 47 percent have posted their own videos, according to a recent report.

The videos let teenagers see funny and exciting things they wouldn’t usually see. Many teenagers like to share the funny things they do with others as well. For example, a 12-year-old user named Xiao Qianyu has posted videos showing her learning jazz dance. This has won her many fans.

However, the videos can also cause trouble. Some students spend too much time watching them and not enough time studying. Some videos have vulgar content that is not good for teenagers.

To deal with this problem, Douyin added a new function (功能) in April, 2018. It locks the app if someone uses the app for over two hours a day. In the same month, the government asked companies to control these apps well and get rid of bad videos.

1. What can people add to their short videos with these apps?

A．Music and special effects.	B．Douyin and Kuaishou.
C．Jazz dance.	D．Locking the app.

2. What will happen if kids spend too much time watching short videos?

A．The app will be locked for over two hours.

B．They will not spend enough time studying.

C．Some vulgar videos will be shown to them.

D．They will win a lot of fans for themselves.

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

A．kind

B．funny

C．wonderful

D．harmful

4. It can be inferred from the passage that ________.

A．the apps have been monitored (监管) much more strictly.

B．more and more teenagers enjoy sharing their short videos.

C．teenagers can add all kinds of special effects to their videos.

D．There will be no vulgar content in these short videos at all.

3 . Thanks to the hybrid rice that was discovered by Yuan Longping,the hunger problem of thousands of Chinese people was mostly fixed in the 1980s.

On Sept 8th,Yuan, together with two other scientists, won China's 2018 Future Scientist Prize, for his continuous research on rice. Even on his 88th birthday on Sept 7th, he took part in the International Development Forum of Rice Production in Hunan province. Although he was recovering from an illness at the time, he was happy to talk to reporters about his latest work on seawater rice.

Yuan has been researching on rice since he was at college. In 1964. he discovered a natural hybrid nice plant in Hainan. Since then, he has focused on developing high yield, hybrid nice varieties (多样性). In1973,he became the first to successfully cultivate (培育) a type of hybrid rice species in the world. With the hard work of Yuan's group for about ten years, the production of the rice was increased (From 150kg per mu (亩) to 500kg per mu and more). These varieties now take up about two thirds of China's rice crop, according to China News. So, it's no wonder that he's known as the “Father of Hybrid Rice”。

And because of China's Belt and Road (一带一路) initiative,Yuan's hybrid rice is helping to solve food problems around the world.According to Xinhua News Agency,hybrid rice plants in Kenya produce fcur to five times more nice than the country's usual rice plants. With a rising fame all over the world. Yuan gave a speech in English at the 9th Shandong High-level Talents Forum in Qingdao last year.His speech made him an internet sensation. Beginning with “I speak broken English",his 20-minute speech turned out to be a huge success, with barely any pauses or mistakes.

The humble Yuan was simply being modest during his speech. According to au article in1999 by CNN,the scientist speaks both English and Russia fluently.“I never need an interpreter when I go overseas.”he hold the US news network. Butin spite of his great knowledge,Yuan inderstands that even the wisest people should stil he told Xinhua.“We should learn from them.”

1. Where was the International Development Forum of Rice Production held?

A．Hainan

B．Hunan

C．Shandong

D．Kenya

2. Which is the main reason that Yuan Longping is kmown as the "Father of Fybrid Rice?

A．He has focused on developing high-yield.hybrid rice varieties.

B．He was the first to successfully cultivate a type of hybrid rice species in the world.

C．Because of Yuan's group, the production of the rice was increased.

D．Hybrid rice plants in Kenya produce four to five times more rice than the country's rice plants.

3. Yuan Longping can speak the following languages EXCEPT？

A．Chinese	B．English
C．Russian	D．French

4. The passage is mainly about_________

A．Yuan Longping won China's 2018 Future Science Prize.

B．Yuan Longping's hybrid rice is helping to solve food problems around the world.

C．Yuan Longping got fame around the world.

D．The character and contribution(贡献）of Yuan Longping.

4 . 听下面一段较长对话，回答以下小题。
1. Where were the Brothers Grimm born?

A．In Hanau.

B．In Steinau.

C．In Kassel.

2. Why did Dorothea Grimm leave her house?

A．Because she returned to her hometown.

B．Because the government asked her to leave.

C．Because her sister invited her to live with her.

3. When did Wilhelm go to the University of Marburg?

A．In 1798.

B．In 1802.

C．In 1803.

4. Who will the man probably talk about next?

A．A doctor.

B．A professor.

C．A publisher.

5 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

Robert was a carpenter (木匠). He was living in a village. His mother died a long time ago. His aged father, Kuppan, lived with Robert. Kuppan was very weak. He could not even walk well. He was so weak because Robert did not give him enough food.

Robert had a son. His name was Michael. Michael was just ten years old. He was a very good boy. He loved his grandfather. He had great respect for his grandfather. We did not like his father’s attitude and character to his grandfather, because his father was treating his grandfather cruelly. One day Kuppan was eating his food in the small plate that his son had given to him. The plate fell and broke into pieces. The food also fell on the floor. Robert was working at the other end of the room. He saw the broken plate. He was very angry with his father and used very sharp words to blame his father. The old man felt bad about what happened. He was sorry for his mistake. Robert’s words wounded him very deeply.

Michael saw this. But he was afraid to speak against his father. He was sad about his grandfather. But he was not powerful to stand in support of his grandfather. Then he got an idea.

Paragraph 1

The next day, Michael took some of his father’s tools and a piece of wood.

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Paragraph 2

The carpenter was pretty shocked to hear that.

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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。

Today I will introduce the Tomb-sweeping Festival. Tomb-sweeping Festival(清明节), or Qingming Festival in Chinese, is     1     festival to worship(敬奉) ancestors in China and usually falls     2     April 4 or April 5. Tomb-sweeping Festival can be traced back to Eastern Zhou Dynasty (770BC—256BC), with a history of over 2500     3     (year). According to the tradition, people eat cold food during this festival.

Around Tomb-sweeping Festival, people visit their ancestors’ tombs(坟墓) with food, wine, fruits, joss sticks(香烛) and zhiqian(纸钱). Food, wine and fruits     4     (put)in the front of the tomb and then the joss sticks and zhiqian are burned. Also, people should     5     (clean) weeds and sweep away leaves around the tomb     6     (show )their respect to their ancestors.

Qingming is a festival as well as one of the Chinese 24 solar terms(二十四节气),    7     means the change of air temperatures, rainfall and biotemperature(生物温度), and farmers arrange their farming activities     8     (active). Qingming is the solar term implies the coming of spring and the increase of rains and temperature. It is a best time for ploughing(耕作) and sowing as well as for spring outing. Therefore, after the festival, farmers are busy in     9     (do) their farming works, and people go out for fresh air and kinds of sports activities, like riding on the swing, and flying kites.

This is     10     we call the Chinese Qingming Festival.

7 . Keeping curious kids from disrupting wildlife

Interacting with the wild, naturally curious kids tend to collect seashells at the beach or keep small wildlife as pets.     1     So how to help kids protect the wild while enjoying spending time outsides? Here are alternatives for some of the most common outdoor behavior no-nos.

Take an interest, not things. Kids show interest in picking flowers, rocks, or shells outdoors. They’re part of wildlife's habitat and play an important role.     2     Let kids explore with a magnifying glass (放大镜)instead of their curious fingers. Let whatever they find outside stay outside.

    3     It seems a fun idea to throw pieces of bread to ducks. Animals have unique dietary needs that are different from humans. Eating human food can make them sick or become dependent on human food. Bears are an example of animals that often have to be killed after developing a taste for human food.

Admire animal afar, not disrupt nearby. The urge to take a photo with a squirrel, bird, or slow-moving turtle can be strong for kids.     4     Instead, remind kids to stay away and show them how to use a camera's zoom button, or just admire with their eyes.

Take well-worn paths, not off-road romps (嬉戏). Kicking piles of leaves, stepping on bushes, and walking through forested areas can unintentionally scare wildlife. If surprised animals defend their homes, everyone could get hurt. Nobody likes having a guest come in and destroy their home and act rudely.    5    

A．Keep snacks away from animals.

B．Share food if animals are hungry.

C．Exposure to them develops kids’ love and curiosity.

D．The same rule applies to visiting wildlife in their homes.

E．Animals rely on plants for hiding; rocks and shells, for homes.

F．Approaching animals disrupts what they do for survival, such as eating.

G．Despite innocent purposes, kids’ curiosity accidentally damages the wild.