There are eight species（物種）of bears．They are in different colors and sizes．They live indifferent parts of the world．Read the following to learn about three bear species．
Panda |
Polar Bear |
Brown Bear |
|
| FOOD | Bamboo | Seals and small whales | Roots．berries，nuts，and fruit |
| SIZE | Up to six feet（英尺）tall | Up to eight feet tall | Up to nine feet tall |
| НOМЕ | Bamboo forests in the mountains of China． | Sea ice and coastal（沿海的）land in the Arctic． | Forests and mountains of North America，Europe，and Asia． |
| FACT | Pandas use their large teeth and strong jaws to chomp（大聲地咬）on bamboo． | Polar bears have a thick layer of fur（毛皮）and fat．This helps them keep warm in their cold home． | Brown bears are in many colors．Some are nearly black．Others are blond． |
B
B
of China．A．farms
B．bamboo forests
C．rivers
（2）Which of the three bear species can grow up to nine feet tall？
C
C
A．Pandas
B．Polar bears
C．Brown bears
（3）Which of the following is one of Polar bear's food？
A
A
A．Small whales
B．Roots
C．Fruit
（4）We can find brown bears in the following places EXCEPT（除了）
B
B
．A．North America
B．Africa
C．Europe
（5）Which of the following is TRUE according to the passage？
C
C
A．Pandas use their small teeth to eat bamboo．
B．The sea ice is so cold that polar bears can't live on it．
C．Brown bears are in different colors．
【答案】B；C；A；B；C
【解答】
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發(fā)布：2024/5/27 14:0:0組卷：3引用：1難度：0.5
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（1）Which of the following can help find family members？
LynQGetting separated from friends or a family member at a music festival can be a real headache.LynQ helps you find your loved ones when you get separated from the group.Unlike your smartphones，this small thing does not need any Wi-Fi to stay connected.It is a great tool for family vacations. 
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EargoThe American company，Eargo is here to add a little excitement to the hearing aid（助聽器） market.With 48 million Americans having hearing problems，the team hopes that their easy-to-use comfortable product will give these people the ability to hear again.
A．LynQ.
B．Eargo.
C．Philips Somneo.
（2）How does the Philips Somneo work？
A．By playing soft music.
B．By creating sunrise scenes.
C．By sending out smell.
（3）What is the purpose of the three inventions？
A．To form good habits.
B．To help the disabled.
C．To make life easier.發(fā)布：2024/12/18 5:30:3組卷：3引用：2難度：0.5 -
2．Recently，a study（研究），published in BMC Medicine，found that sitting in front of the TV for a long time was a risk for people's health.
After scientists used data（數(shù)據(jù)）on 370，000 people，covering 12 years，they found about 9，000 developed heart disease.They found people with genes（基因）of heart problems were more likely to develop heart disease.However，they found that people without such genes watching more than four hours of TV every day were also at the greatest risk of heart disease.People spending 2 to 3 hours a day watching TV had a 6% lower risk.And those who watched less than an hour had a 16% lower risk.The scientists of the research team finally found cutting TV watching time to less than an hour a day could prevent 10% of heart disease.
In life，people who want "one more episode（劇集）" might be the group at a higher risk，for they are easy to spend more time watching TV.If they have more snacks while watching TV，it might add the risk of putting their hearts in danger.So，if people want to watch TV longer，standing up and moving the body，or hanging out will work.But limiting their time on TV could be a more useful way to help them avoid possible heart problems in the future.
（1）According to the text，how long did the research cover？
A．10 years.
B．12 years.
C．14 years.
（2）From paragraph 2，which of the following is right？
A．People watching one hour of TV are at the greatest risk.
B．The less time people spend on TV，the lower the risk is.
C．Watching TV is the only reason to develop heart disease.
（3）Which best explains "limiting" underlined in paragraph 3？
A．限制
B．記錄
C．花費
（4）Where is this text probably from？
A．A tour guide.
B．A story book.
C．A newspaper.
（5）What is the main idea of the text？
A．We'd better not watch TV more than one hour a day.
B．Hanging out after dinner is good for our heart health.
C．Having snacks while watching TV adds risks for heart.發(fā)布：2024/12/27 4:30:1組卷：26引用：4難度：0.8 -
3．How Soccer Can Help Us Understand Physics Sports provide a great way to understand some concepts（概念） in physics.Physics，after all is the study of matter，motion（運動），force，and energy.And since sports liken soccer，swimming and cycling involve bodies moving through space，they can help us understand how the principles of physics work.
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For thousands of years，though，people thought that objects like this soccer ball come to rest because they have a natural tendency to stop.It took a famous physicist by the name of Sir Isaac Newton，who lived in the 1600s，to prove that this was not exactly correct.
Newton suggested that objects like the soccer ball have a natural tendency to keep moving.The only reason they stop，he believed，is because an unbalanced force acts on them.By an unbalanced force，Newton meant the force applied to the soccer ball by its environment.When kicked，the surface of the ball travels over the grass，creating friction（摩擦力）.The taller the grass，and the rougher the surface of the ball，the more friction is created.And the more friction that exists between the ball and the grass，the less it will travel after being kicked.
Now，imagine that there is no grass.Instead，the ball is resting on a frozen lake.When you kick the ball on the ice，the ball will go much farther than it would have on the grass.This is because ice provides a lot less friction than the grass.
Even so，ice does cause some friction.The ball's interaction with the frozen water crystals on the surface of the lake eventually causes it to come to rest again.But now imagine that instead of ice，the ball is in a place where there's no friction at all.The ball is floating in a vacuum.If you remove friction entirely，kicking the soccer ball would cause it to keep going and going at the same speed，until some force caused it to slow down and sjye.aip.To paraphrase Sir Isaac Newton，a soccer ball on the grass will stay where it is unless acted on by a force.Similarly，once you kick the ball，it will remain in motion unless acted on by force.This，in so many words，is known as Newton's First Law of Motion.
（1）According to the passage ，once an object like a soccer ball is in motion，it has a natural tendency to.
A．stop
B．slow down
C．keep moving
D．change direction
（2）What does the writer explain in the passage？
A．The idea of motion，using sports as examples.
B．The force of friction，using music as examples.
C．The sport of soccer，using examples of teams and players.
D．The importance of understanding the concepts in physics.
（3）What does the underlined word "tendency" mean？
A．A very small chance of something happening.
B．A fifty-fifty chance of something happening.
C．The way something normally behaves or acts.
D．The fear of doing something or acting in a certain way.
（4）The passage is mainly about.
A．the motion of objects
B．the life of Sir Isaac Newton
C．why we have to learn physics
D．why we kick the ball on a grassy land發(fā)布：2024/12/20 0:30:1組卷：32引用：2難度：0.3
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