Teenagers' busy life can cause them to see exercise as a waste of time.However，the belief is far from true.Exercise is important for teenagers because it not only promotes physical health，but also improves mental health.
Exercise plays an important role in a teenager's mental health.Teenagers who exercise tend to have a better body image than those who don't，which helps build confidence and makes one feel more comfortable.This also helps one to accept his or her looks.Although physique（體形）is not as important a factor as health，it can strongly affect teenagers' mood and attitude.A healthier and fitter body will build a greater sense of confidence in the body image.
Another mental benefit from exercise is the feel-good endorphins（內(nèi)啡肽）that come along with it.The body produces endorphins naturally when one exercises hard that are commonly referred to as "a happy chemical".They can produce a feel-good effect and create a sense of emotional well-being during and after exercise.They can make physical activities more enjoyable.They can also reduce stress and relax one to a point at which it is even easier for one to fall asleep.
Many students say that they are too busy with schoolwork to exercise，but they don't realize that exercise can improve their mental performance.Exercise such as walking and jogging increases the flow of oxygen to the brain and heart.Teenagers who exercise regularly tend to have the ability to think more clearly and faster.In addition，teenagers that exercise regularly tend to be more focused and perform better in school.Various mental issues can be aided by exercise as well.For example，one who suffers from anger issues may look to exercise as an outlet.Teenagers who struggle with anxiety and depression can also find a healthy outlet through exercise.
（1）What do we know about a good physique？ AA
A．It can make teenagers more confident.
B．It is more important than health.
C．It can't affect teenagers' mood and attitude.
D．It can change teenagers' looks.
（2）What does the underlined word "it" in paragraph 3 refer to？ CC
A．Body.
B．Benefit.
C．Exercise.
D．Endorphin.
（3）Which word best describes the author's attitude to exercise？ BB
A．Negative.
B．Positive.
C．Uncaring.
D．Worried.
（4）What is the text mainly about？ DD
A．Teenagers' problems with exercise.
B．The importance of mental health.
C．Teenagers' mental performance.
D．The mental benefits from exercise.
【考點(diǎn)】說明文．
【答案】A；C；B；D
【解答】
【點(diǎn)評】
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發(fā)布：2024/4/20 14:35:0組卷：1引用：2難度：0.4
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1．It is widely believed that biodiversity（生物多樣性）is promoted to save species.But in reality species exist only as part of ecosystems and cannot survive unless their ecosystems are protected along with as much as possible of the diversity they contain.
Protecting habitats（棲息地）is important for keeping biodiversity.In 2003，over 102，000 habitats covering nearly 19 million square kilometres，or 11.5% of the world's land surface，were under some form of protection.Though this is a great improvement since 1962，when just 1，000 protected habitats were listed，it is still not considered enough to stop the ecocide that is endangering the world's biodiversity.
For a number of environmentalist，protecting the world's 25 biodiversity hotspots（熱點(diǎn)地區(qū)）is critical to saving habitats and species.But many hotspots are endangered already，having lost up to three-quarters of their original plants.
The poor state of most biodiversity hotspots results directly from population growth and migration（遷移） into these areas.A study found that by the mid-1990s around 1.1 billion people lived in these hotspots.Moreover，the annual population growth rate in these areas was 1.8%，higher than the global average of 1.4%.The PAI report concluded that human-related environmental changes will continue to put pressure on hotspots.Therefore，keeping biodiversity requires paying close attention to population size.
Protecting hotspots is not simply a matter of putting up fences and employing guards.The best results are achieved when local people are educated about the value of wildlife，and actually gain a share of the benefits from eco-tourism.Only then do they have a chance to see the benefits of protecting hotpots.
（1）What can we infer from paragraph 1？
A．The loss of any species can affect humans.
B．Endangered species are paid more attention to by humans.
C．Species can still survive when their ecosystems are destroyed.
D．Ecosystem protection is as important as diversity protection.
（2）What does the underlined word "ecocide" in paragraph 2 mean？
A．Ecosystem protection.
B．Reduction of the number of species.
C．Serious damage to habitats.
D．Habitats protection.
（3）What's the direct cause of the terrible state of the hotspots？
A．Population growth in hotpots.
B．Migration out of these areas.
C．Global warming.
D．The global average population growth rate.
（4）What's the author's opinion on protecting the hotspots？
A．It's simple to carry out.
B．It leads to the increase of tourists.
C．It's closely connected with local people.
D．It suggests that the local people are well educated.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.5 -
2．International students who stayed in the US as their classes moved online during the COVID may be forced to leave，following guidelines of the US Immigration and Customs Enforcement published due to the pandemic（流行病）.
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The government said that the policy speaks for itself and that online coursework is not worth a visa.So far，not any sign of change has been within sight.As students are waiting for the policy to improve，their fall programming and their future remain in limbo.
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（2）What do international students staying in the United States think of the new rule？
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A．Favorable.
B．Neutral（中立）.
C．Unfavorable.
D．Unclear.
（4）What does the underlined phrase "in limbo" in the last paragraph mean？
A．Horrible.
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C．Uncertain.
D．Unbelievable.發(fā)布：2025/1/6 15:30:8組卷：0引用：1難度：0.5 -
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（1）According to the author，people enjoyto seek nature.
A．jogging on the street
B．running in the gym
C．shopping in the supermarket
D．sitting in the garden
（2）From the second paragraph，we can see that.
A．Children don't want to approach nature
B．children probably spend less time in nature nowadays
C．climbing trees will certainly do good to the children
D．children tend to be happier as a result of their material satisfaction
（3）In what way do people benefit from their contact with nature？
A．Children with ADHD can be cured.
B．Children's performance at school is greatly improved.
C．Problems with crime and violent behavior will easily be solved.
D．A garden nearby improves the quality of old people's life.
（4）what is the main idea of this passage？
A．Access to nature improves our life.
B．Nature treats children for ADHD.
C．Getting close to nature reduces crime.
D．Man can't live without natural areas.發(fā)布：2025/1/6 16:30:6組卷：0引用：1難度：0.5
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