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_____ dog likes running. They often take it to the zoo.
A. Tom and Sam B. Tom’s and Sam
C. Tom and Sam’s D. Tom’s and Sam’s
九年级英语单项填空困难题查看答案及解析
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Many people take running as a way to keep fit. They like to run in hot weather and enjoy the feeling of being wet through with sweat while running. Cold weather during winter months, with low temperatures and freezing cold winds, may keep many people from running in the open air.
However, a new study shows that the drop in temperature is a good reason to run. In fact, running in cold weather helps improve one’s performance. Many runners might find it easier to run in winter than in hot weather.
Lower temperatures reduce stress on the body. When you run in cold weather, your heart rate is lower. And the body needs less water on a cold day than in warm weather because dehydration levels are lower in winter than in warmer conditions.
John Brewer is a professor of applied sports science at ST. Mary’s University in London. For this study, he and other researchers put a group of people into a room where summer and winter weather conditions are recreated. The test subjects, were asked to run 10,000 meters under both conditions and their biological measurements were recorded and studied.
From the study, every movement runners make produces heat. The heat can be really damaging unless the body can lose it. One way in which people lose heat is by sweating. The body loses heat through droplets of sweet. The body also loses it by transporting the blood to the surface of the skin and it puts more stress on the heart, particularly in hot conditions because it’s much harder to lose heat when the outside environment is warm. As the result shows running in hot temperatures results in 6 percent higher heart rates.
When running in cold conditions, the body does not have to work hard to pump blood to the skin surface. Therefore, it requires less energy. The most important thing for people who run in cold conditions is to wear the right clothing. Keep as dry as possible when exercising in low temperatures. Wear mittens on your hands instead of gloves. Wear more than one layer of clothing to keep sweat away from your skin. So don’t let winter weather keep you indoors. Simply get ready for the low temperatures and start running.
1.Why do most people dislike running outdoors in winter?
A. It’s too cold. B. It’s hard to run.
C. It’s too easy to sweat. D. It’s bad for the heart rate.
2.What does the underline word ＂dehydration＂ in Paragraph 3 means the loss of ______from the body.
A. water B. heat C. stress D. blood
3.Why did John Brewer make a group of people run in a room?
A. It was easier to be reduce stress.
B. It was easier to produce heat.
C. It was easier to recreate different weather conditions.
D. It was easier to record their biological measurements.
4.What should people wear while running in cold winter?
A. A hat. B. Gloves.
C. More clothing. D. More than one layer of clothing.
5.What’s the purpose of the passage?
A. To tell people not to run in summer.
B. To describe how runners run in winter.
C. To encourage people to run outdoors in winter.
D. To compare the advantages of running in winter and in summer.
九年级英语阅读单选中等难度题查看答案及解析
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The dogs were made ________ as fast as they could.
A. run B. ran C. running D. to run
九年级英语单选题中等难度题查看答案及解析
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The dogs were made __________ as fast as they could.
A．run
B．ran
C．running
D．to run
九年级英语单项填空中等难度题查看答案及解析
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一Jane her mother.
一Yes, they just look the same, like sisters.
A. looks after B. runs after
C. takes after D. makes after
九年级英语单选题中等难度题查看答案及解析
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Tie the dog to the tree, or it will escape after you leave it.
A.run after B.run away C.run out D.run into
九年级英语单选题中等难度题查看答案及解析
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“It’s raining cats and dogs!”Grandpa shouted.
Little Richie came running to the window. He wanted to see the ____falling from the sky. He looked out of the window, but is was ____that there were no cats or dogs. He only saw small pools of water on the ground.
“Man, it’s really coming down out there!” Uncle Bob agreed____he looked out of the window, too. Richie scratched his head(挠头). What was coming down? First they talked about cats and dogs that ____ be seen. Now someone said it “it”. What was going on with these ____?
“Wow!” Aunt Susie shouted as she looked out of the window. “It’s raining really hard.”
Richie____his aunt. “It is raining hard,” he agreed, “but ____are the cats and dogs?”
Grandpa laughed. “Richie, that just____it’s raining really hard.”
“So why didn’t you just say that?” Richie ____. It was irritating (恼人的) when people like they were not speaking English at all.
“We did. You just didn’t understand these____.” Richie’s cousin said with a big smile.
“Well, now I do.” Richie said.
1.A. tigers and lions B. pigs and sheep C. cats and dogs D. chickens and ducks
2.A. important B. possible C. necessary D. strange
3.A. unless B. after C. till D. though
4.A. couldn’t B. shouldn’t C. needn’t D. mustn’t
5.A. days B. animals C. ideas D. people
6.A. shouted at B. looked at C. laughed at D. pointed at
7.A. what B. how C. where D. who
8.A. explains B. proves C. means D. shows
9.A. ordered B. thought C. repeated D. asked
10.A. saying B. questions C. objects D. stories
九年级英语完型填空困难题查看答案及解析
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The old couple often take a walk after supper in the park with their pet dog ___________ them.
A. to follow B. following C. followed D. follows
九年级英语单项填空中等难度题查看答案及解析
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(2013•宿迁市)It's dangerous a close look at the tiger in the zoo.
A. for us taking B. of us to take C. of us taking D. for us to take
九年级英语单选题中等难度题查看答案及解析
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Many kids help parents to do chores in the house. They may take out the trash, walk the dog or sweep the floor. In return, some kids get money or other rewards from their parents, such as 20 minutes to play computer games.
But some people do not think that kids should get rewards for doing chores. One of them is Jane Smith, a parenting educator and family coach. She believes if kids get rewards, they may think that work isn't worth doing unless you get something in return. For example, kids won't sweep the floor if they see it is dirty. But they will do it if their parents reward them for it.
“Every house is a team effort, ” Jane said. “A home is the living space for everyone in the family. It's important for kids to see that we all have a responsibility to keep our home clean. ”
Other people hold different opinions. They believe that money or other rewards encourage kids to do more chores. It also teaches them real world lessons. They can learn about how we need to work to make money.
Now, there are also apps that encourage kids to do chores. The apps give kids points and digital (数码的) gifts that can be used either online or in life. With the app ChoreMonster, kids earn digital points after doing chores. Kids can exchange their points for real rewards, such as time to play video games or a trip to the mall. “Our goal is to encourage kids so they can earn rewards, ” says Joe Black, the founder of ChoreMonster.
“Kids need positive (积极的) power to make them do chores. ”
1.Jane Smith thinks that________.
A. housework isn't worth doing
B. kids are not willing to do chores
C. kids should get something in return
D. kids shouldn't get rewards for doing chores
2.ChoreMonster is a(n)________.
A. educator B. coach
C. app D. app founder
3.If rewarded for doing chores, kids can learn to ________.
A. take responsibilities B. use apps well
C. make money through work D. understand team effort
4.What's the purpose of the apps mentioned in the passage?
A. To give kids points and gifts.
B. To encourage kids to do chores.
C. To exchange points for real rewards.
D. To give kids advice on doing chores.
5.The passage mainly talks about________.
A. how to encourage kids to do chores
B. what kind of chores kids should do
C. if kids should do chores at home
D. whether kids should be rewarded for doing chores
九年级英语阅读单选中等难度题查看答案及解析