Race walking shares many fitness benefits with running, while most likely contributing to fewer injuries. It does, however, have its own problem.

Race walkers are conditioned athletes. The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon. But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times. However, it’s this strange form that makes race walking such an attractive activity.

Like running, race walking is physically demanding. According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,000 or more calories per hour.

However, race walking does not pound the body as much as running does. Runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.

As a result, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers. But the sport’s strange form does place considerable stress on the ankles and hips, so people with a history of such injuries might want to be cautious in adopting the sport. In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique. It takes some practice.

1.What is the problem of race walking?

A.It most likely contributes to fewer injuries than running .

B.Race walkers have to obey certain rules while walking.

C.Just like running, race walking is mentally demanding.

D.Race walkers hit the ground with stronger force per step.

2.Which of the following usually burns more calories?

A.Race walking. B.Walking.

C.Running. D.Sleeping.

3.What can we infer from the passage?

A.Race walking is likely to cause knee injuries.

B.Race walking is fit for people with hip injuries.

C.Turning to experts before trying race walking is a good idea .

D.Practice more and you will surely benefit from race walking.

4.This passage is probably taken from __________.

A.a story book B.a textbook

C.a travel journal D.a sports magazine

    "Keep your eyes open. This is where the Ewoks live.'' The one-hour drive outside of San Francisco, covered in clouds along windy roads, has inspired my husband to say this sentence at least a dozen times.

We finally arrive at Muir Woods National Park. I explain the strange green stuff on trunks of trees as we pass by--mos (苔藓), something my 5-year-old son Cole has never seen in the desert where we live.

"Mom, are Ewoks real? I think they maybe aren't real. " There's a question in Cole's voice,like he's trying on this idea.

We've been down the road of pretending versus reality before, what with all the talk of superheroes and such around our house. "I think you are right. Ewoks are just in the movies. But it would be cool if they were real, right ?"

Cole's silent for a while, thinking. "I just saw an Ewok’s ear back there!" Coles spotted an additional Ewok arm and one full body of the tiny hairy creatures. It does indeed look like we are in the Ewok forest of Star Wars.

Cole's imagination is more than I can understand. What do plants eat? Which is the best planet? Which rocks float? He loves life. He loves his inner world and outer existence equally.

I hear a lot of worry from parents about media sucking the souls from our children, taking away their time for creative play. For us, this hasn’t been the case. Cole and his brother are quite knowledgeable in the realities of life when it comes to Angry Birds, Curious George, and the adventures of Indiana Jones. These characters, and others of their own invention, live in my home like visitors, joining us on walks and outings. I appreciate them, though not all the time, for the company they give my sons and their busy minds.

I think of media characters as an add-on to already busy minds, by carefully monitoring who gets invited into our lives, they become part of the parenting team. They teach loyalty adventure, curiosity--lessons I'm trying to convey, but in a much cooler way than I can.

Pretence is awesome. It provides practice for real life without the ordinary interfering.

1.Where are the family heading for?

A.The cinema. B.A park. C.San Francisco. D.A desert.

2.What can we know about Cole from the passage?

A.He is proud of himself. B.He is full of curiosity.

C.He is courageous. D.He is considerate.

3.What do many parents think of their children playing via media?

A.It wastes children's time.

B.It can make their children relaxed.

C.It can engage their children in learning actively.

D.It can accompany their children in their absence.

4.What's the authors attitude to the media characters in parenting children?

A.Indifferent. B.Critical. C.Supportive. D.Disapproving.

Flies won’t transmit COVID-19

With the arrival of summer, many people are worried about contracting COVID-19 through mosquitoes or flies.

In response to the concern, Wang Liping, a researcher from the Beijing Center for Disease Control and Prevention, said there is not yet evidence of people getting infected with the novel coronavirus through a mosquito or fly. She made her remarks at a news conference on Saturday. She said the virus is mainly spread through respiratory droplets and physical contact.

Djokovic gets COVID-19

Novak Djokovic tested positive for the coronavirus on Tuesday after taking part in a tennis exhibition series he organized. His wife also tested positive.

Djokovic has been criticized for organizing the tournament and bringing in players from other countries during the coronavirus pandemic (全国或全球性流行病). Viktor Troicki said Tuesday he and his pregnant wife have both been diagnosed with the virus, while Grigor Dimitrov, another tennis player, said Sunday he tested positive.

Kids are more prepared against virus

Children may be protected from coronavirus because they catch so many colds, scientists have suggested. Figures from the Office for National Statistics suggest children are just as likely to pick up the virus, but few ever develop serious disease, or even show symptoms.

While adults pick up a cold around two to four times a year, school age children catch an average of 12 colds annually, studies have shown. It may allow youngsters to build up some ongoing resistance that adults do not have.

Special bonds are to be issued

China will issue 100 billion yuan in special government bonds for COVID-19 control measures to balance epidemic control with economic and social development, the Ministry of Finance (MOF) said Monday. The MOF will issue two kinds of bonds, including 50 billion yuan in five-year bonds and 50 billion yuan in seven-year bonds, the MOF said in a statement. Both will be traded on June 23, 2020. China will pursue a more proactive and impactful policy this year to release more funds for companies and individuals.

1.Who is less likely to get COVID-19 according to the passage?

A.Children. B.Adults. C.Males. D.Females.

2.Which of the following is true?

A.People will get infected with the novel coronavirus if they are bitten by mosquitoes or flies.

B.Novak Djokovic,Viktor Troicki, Grigor Dimitrov and their wives were all tested positive.

C.Children who often catch colds are more easily to be infected with the novel coronavirus.

D.China is actively taking measures to balance epidemic control with economic and social development.

3.What does the news have in common?

A.They tell us to keep away from mosquitoes or flies.

B.They tell us something about the novel coronavirus.

C.They advise us to ignore the virus and take more exercise.

D.They advise us to make full use of our savings to make money.

听下面一段独白，回答以下小题。

1.What does the speaker introduce first about Liverpool?

A.The reputation.

B.The culture.

C.The business.

2.What kind of transport has been most important to Liverpool?

A.Rail transport.

B.Sea transport.

C.Road transport.

3.What is RMS Lusitania?

A.It is a famous pop group.

B.It is a top football club.

C.It is a well-known ship.

4.What has been the best-known export in Liverpool since the 1960s?

A.Music. B.Coal. C.Cotton.

听下面一段较长对话，回答以下小题。

1.What is the girl doing?

A.Looking for a missing friend.

B.Searching for a lost pet.

C.Helping the man make a poster.

2.Where was Charlie last seen according to the man?

A.At the park.

B.On the street.

C.In the girl’s yard.

3.What do we know about Charlie?

A.He is young.

B.He has poor eyesight.

C.He has brown eyes.

4.What is the relationship between the speakers?

A.They are strangers.

B.They are neighbors.

C.They are family members.

听下面一段较长对话，回答以下小题。

1.Where does the conversation probably take place?

A.In the school hall.

B.In a classroom.

C.In the teachers’ office.

2.What do we know about Eric from the conversation?

A.He is overconfident.

B.He is quiet.

C.He is enthusiastic.

3.What will the woman probably do next?

A.Organize a study group.

B.Eat lunch with some students.

C.Prepare for the next class.

听下面一段较长对话，回答以下小题。

1.Why does the man call the woman?

A.To fix the door.

B.To save his daughter.

C.To help him enter his house.

2.How does the man probably feel now?

A.Amused. B.Anxious. C.Angry.

听下面一段较长对话，回答以下小题。

1.How was the woman convinced to take the dance lesson?

A.Her friend persuaded her.

B.She overcame her fear on her own.

C.She saw everyone having a good time.

2.How many kinds of dance does the woman mention?

A.Two. B.Three. C.Four.

What are the speakers mainly talking about?

A.Booking a hotel.

B.Looking for the directions.

C.Making comments on a flight.

What just happened in the conversation?

A.The cat played with the man.

B.The cat destroyed the woman’s sofa.

C.The cat scratched the woman.