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Last Saturday , our class held a discussion about the topic ¡°Can middle school students be in love .¡±:As is shown in the discussion ,25% of the students are in favor of it , thinking that loving one person is the right of every student .If dealt with properly , love can improve the study of each other .However , 55%of them are opposed to it for the reason that being in love with someone takes up time and energy , which has a negative effect on their studies .In addition , not only are parents unwilling to know their children are in love while studying at school ,but students falling in love will also end up in failure .The rest 20% of the students have a neutral attitude because they don¡¯t understand the difference between like and love .

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¡¾ÌâÄ¿¡¿¡¾¸Ä±à¡¿Our body clock£¬or natural body rhythm£¬influences our energy and alertness£®Paying attention to it can help us choose the suitable time of day when we best perform specific tasks£®

The reality£¬however£¬is that most of us organize their time around work demands£¬school deadlines£¬commuting or social events£®Doing whatever your body feels like doing is a luxury in today's fast-paced modem society£®

But that doesn't mean it isn't worth trying£®Obeying our body clock has significant health benefits£®Disrupting our natural body rhythm£¬on the other hand£¬has been linked to problems such as depression£¬obesity£¬or headache£¬says Steve Key£¬a biology professor£®

When the body clock can synchronize£¨Ê¹¡­¡­Í¬²½£©the rhythms of its natural processes£¬it ¡°gives us an advantage in daily life¡±£¬says Key£®

According to him£¬when it comes to cognitive£¨ÈÏÖªµÄ£©work£¬most adults perform best in the late morning£®As our body temperature starts to rise just before awakening in the morning and continues to increase until midday£¬our memory£¬alertness and concentration gradually improve£®

However£¬he adds£¬our ability to concentrate typically starts to decrease soon thereafter£®Most of us are more easily distracted between noon and 4 pm£®

Alertness also tends to fall after eating a meal and sleepiness tends to peak around 2 pm£¬making that a good time for a nap£®

Surprisingly, tiredness may increase our creative powers£®For most adults£¬problems that require open ended thinking are often best dealt with in the evening when they are tired£¬ according to a study in the journal Thinking & Reasoning£®

When choosing a time of day to exercise£¬paying attention to your body clock can improve results£®Physical performance is usually best from about 3 to 6 pm£¬says Michael Smolensky£¬a professor of biomedical engineering£®

Of course, not everyone's body clock is the same£¬making it even harder to synchronize natural rhythms with daily plans£®

¡¾1¡¿What does the writer mainly tell us in the passage?

A. The benefit of natural body rhythm.

B. A new research about our body clock.

C. Something about natural body rhythm.

D. The definition of natural body rhythm.

¡¾2¡¿What is the meaning of the underlined word ¡°disrupting¡±?

A. Following. B. Destroying.

C. Noticing. D. Finding.

¡¾3¡¿According to the passage, we can know _____.

A. people don¡¯t know tiredness can increase creative powers.

B. people are most focused at 3 o¡¯clock..

C. natural body rhythm can¡¯ t influences people¡¯s energy.

D. most grown-ups perform best in the early morning

¡¾4¡¿Which of the following is true ?

A. Our memory and concentration improve with the fall of body temperature.

B. A good time for a nap is usually at 1pm.

C. Physical performance is usually best in the morning.

D. Not all people have the same body clock.

¡¾5¡¿The benefit of knowing our natural body rhythm is that_____.

A. we can keep healthy all our life.

B. we can improve our IQ.

C. we can do specific tasks in suitable time.

D. we can do whatever our body wants to.

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Nowadays, with the growing popularity of computers, teachers, students and their parents are paying less and less attention to handwriting. According to the recent survey, about 85.5 percent of middle school students think that their handwriting is poor.yet for various reason, many students do not want to improve our handwritiing . 51.5 percent of the students think it is no need to waste time improve their handwriting , and 32.3 percent believe that they are busy with the study that they don not have time to practice. 10.9percent think that practice handwriting is useless. As the saying goes, that handwriting shows the man. Beautiful and neat handwriting is beneficial, especial for middle school students .therefore, in my opinion, much emphasis should be placed in this aspect in the future.

¡¾ÌâÄ¿¡¿Researchers are finding new ways to save snakebite victims.Experts discussed the latest findings during a recent conference.

Scientists in Australia have shown that a chemical called nitric oxide could increase the chances of surviving a poisonous snakebite.The scientists injected rats with a deadly amount of snake venom.Then they rubbed an ointment(Èí¸à)containing nitric oxide on the skin around the injection site.The study found that the rats lived about one-third longer than if nitric oxide had not been used.But the treatment had to be started very quickly.

Dirk van Helden led the research.He says the nitric oxide ointment also showed promise in humans.The study appeared earlier this year in the journal Nature Medicine.Scientists say the findings could help save many lives.A recent study found that poisonous snakes cause as many as ninety-four thousand deaths worldwide each year.But Ulrich Kuch of the Biodiversity and Climate Research Center in Frankfurt,Germany,says that number appears to be low.

Mr Kuch says many deaths could be prohibited if snakebite victims are treated correctly,but they often go to traditional healers or do not seek any help at all.He said,¡°Sometimes it¡¯s because there is no treatment available¡ªno antivenom(¿¹É߶¾ÑªÇå),which is the specific(ÌØÊâµÄ)drug to treat snakebites¡ªor health care staff do not know how to treat snakebites,and sometimes its because transportation to get to a health facility is not available or too expensive.

Here is no single antivenom that can be used to treat all snakebites.The antivenom must be specific to the kind of snake that bit the person.In some countries the treatment is costly,while in others there is no such treatment.

¡¾1¡¿What is this passage mainly about?( )

A.Snakebite deaths around the world.

B.Progress in fighting snakebite deaths.

C.Snakebite treatment around the world.

D.The chances of surviving a poisonous snakebite.

¡¾2¡¿After being rubbed an ointment containing nitric oxide,the rats .

A.suffered no pain

B.died immediately

C.lived a little longer

D.started feeling uncomfortable

¡¾3¡¿What does Paragraph 3 suggest?( )

A.The number of deaths caused by snakebites is becoming lower each year.

B.The nitric oxide ointment has saved thousands of people¡¯s lives.

C.It is very important to find an effective way to treat snakebites.

D.The number of deaths caused by snakebites worldwide is low.

¡¾4¡¿What does the underlined word ¡°prohibited¡± in Paragraph 4 mean?( )

A. caused. B.considered.

C.examined. D.prevented.

¡¾5¡¿What is implied in the last paragraph?( )

A.Antivenom can be made very easily.

B.It¡¯s very important to use the correct antivenom to treat snakebite victims.

C.Antivenom is extremely expensive all over the world.

D.A person bitten by a snake will survive as long as there is antivenom.

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