Many people have difficulty in getting up in the morning.This might be called laziness，but Dr.Kleitman has a new explanation.He has proved that everyone has a daily energy cycle.
During the hours when you work，you may say that you're "hot".That's true.The time of day when you feel most energetic is when your cycle of body temperature is at its peak （頂峰）.For some people the peak comes during the morning.For others it comes in the afternoon or evening.No one has discovered why this is so，but it leads to such familiar words as： "Get up，John!You'll be late for work again!" The possible explanation for the trouble is that John is at his temperature-and-energy peak in the evening.Much family quarrelling ends when husbands and wives realize what these energy cycles mean，and which cycle each member of the family has.
You can't change your energy cycle，but you can learn to make your life fit it better.Habit can help，Dr.Kleitman believes.Maybe you're sleepy in the evening but feel you must stay up late anyway.If so，staying up later than you want to may counteract your cycle in some way.If our energy is low in the morning but you have an important job to do early in the day，rise before your usual hour.This won't change your cycle，but you'll get up steam and work better at your low point.
Get off to a slow start which saves your energy.Get up with a comfortable yawn and stretch.Sit on the edge of the bed for a minute before putting your feet on the floor.Avoid the troublesome search for clean clothes by laying them out the night before.
（1）Dr.Kleitman explains that it is difficult for a person to get up in the morning probably because of BB.
A．his own laziness
B．his own energy cycle
C．his own habit
D．his bad rest at night
（2）According to the passage，people's energy peak may come DD.
A．in the morning
B．in the evening
C．in the afternoon
D．a(chǎn)t different hours
（3）If the finding is true，it's best to AA.
A．do your work at the energy peak
B．manage to control your temper
C．work at the bottom of energy cycle
D．manage to keep you clean all day
【答案】B；D；A
【解答】
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發(fā)布：2024/5/27 14:0:0組卷：5引用：1難度：0.7
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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．Most of us spend our lives seeking the natural world.We go fishing，sit in the garden，have a picnic，live in the suburbs or go to the seaside.The most popular leisure activity in Britain is going for a walk.When joggers jog，they don't run on the streets.Every one of them tends to go to the park or the river.
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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
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C．climbing trees will certainly do good to the children
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（3）In what way do people benefit from their contact with nature？
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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 -
3．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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（1）Why would international students prefer to stay in the US during the pandemic？
A．They couldn't delay the program for a year.
B．They can make full use of the library resource.
C．They wouldn't bring any potential danger to their family.
D．They can learn better with their classes moved online.
（2）What do international students staying in the United States think of the new rule？
A．The new rule treats them as American citizens.
B．The new rule shows great unreasonable opinion against them.
C．The new rule guides them to plan to return to the US.
D．The new rule treats them like low-level students in school.
（3）What is the government's attitude towards the new rule？
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.
B．Flexible.
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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