题目内容

Food sometimes gets poisoned with harmful things. A person who eats such food can get an illness called food poisoning(中毒). Food poisoning is usually not serious, but some types are deadly. The symptoms of food poisoning usually begin within hours of eating the poisoned food. Fever is one of the most common symptoms.
Certain microorganisms（微生物）cause most types of food poisoning. Bacteria and other microorganisms can poison eggs, meat, vegetables, and many other foods. After entering the body, these tiny living things release（释放）poisons that make people sick.
Some chemicals can also cause food poisoning. They are often added to food while it is being grown, processed, or prepared. For example, many farmers spray chemicals on crops to kill weeds and insects. Some people may have a bad reaction to those chemicals when they eat the crops.
Some plants and animals contain natural poisons that are harmful to people. These include certain kinds of seafood, grains, nuts, seeds, beans, and mushrooms.
When people handle food properly, the risk of food poisoning is very small. Microorganisms multiply rapidly in dirty places and in warm temperatures. This means that people should never touch food with dirty hands or put food on unwashed surfaces. Food should be kept in a refrigerator to stop microorganisms from growing. Meat needs to be cooked thoroughly to kill any dangerous microorganisms. People should also wash food covered with chemicals before eating it. Finally, people should not eat wild mushrooms or other foods that grow in the wild. Some of these foods may contain natural materials that are poisonous to humans. In addition, some types of fish can be poisonous.
Most people recover from food poisoning after a few days of resting and drinking extra water. If people eat natural poisons, they must go to the hospital right away to have their stomachs emptied.
小题1:Which of the following statements is NOT true?
A．Food when poisoned can make people sick.B．Food poisoning means death.
C．Food poisoning comes in varieties.D．Food poisoning can be serious.
小题2:We know from the passage that the symptoms of food poisoning        .
A．are always accompanied by a feverB．are too common to be noted
C．can be noticed within hoursD．can he ignored
小题3:Food poisoning can be caused by all the following EXCEPT       .
A．some chemicalsB．low temperatures
C．some tiny living thingsD．certain natural materials
小题4:From Paragraph 5,we can learn that        .
A．mushrooms should not be eaten
B．vegetables are safer than meat and seafood
C．natural poisons are more dangerous than chemicals
D．different types of food should be handled differently
小题5:It can be inferred from the passage that       .
A．natural materials are safe in food processing
B．chemicals are needed in food processing
C．food poisoning can be kept under control
D．food poisoning is out of control

小题1:B
小题2:C
小题3:B
小题4:D
小题5:C

试题分析：文章介绍了食品中毒的症状，原因以及教读者怎样储存食物避免变质和导致食品中毒。
小题1:考查事实细节分析理解，由第一段中Food poisoning is usually not serious, but some types are deadly.可知选B。
小题2:考察细节理解：由第一段The symptoms of food poisoning usually begin within hours of eating the poisoned food.可知，选C
小题3:考查事实细节分析理解，由第五段Food should be kept in a refrigerator to stop microorganisms from gnawing.可知low temperatures不能导致Food poisoning选 B
小题4:考查推测分析能力，由第五段第一句话可以推测出D恰当，A太绝对B。C无细节支持
小题5:考查推测能力，由文中第五段第一句话When people handle food properly, the risk of food poisoning is very small.可推测出C正确
点评：本文对高一学生来说还是有些难度的，集中考查了细节题，要求考生在阅读的时候，在关键的信息点上做好标志和符号，解题时减少回读的次数，提高阅读的速度和效率。
练习册系列答案
相关题目
Most American children eat potatoes every day, but they don't know which part of potato is most nourishing(有营养的).Take a sharp knife and cut a very thin slice(薄片) from it and hold it to the light, and you will see that the potato has skin, an outside rim(边缘) and the inner part. The outside rim which is right under the skin is most nutritious.But this part is often thrown away with the skin. Even the skin itself is better for food than the inside. When eating a cooked potato, if you choose the inside and leave the outside, you are wasting the best part of it. If you can’t eat the whole potato, it is better to eat the outside rim and leave the inner part.
小题1:A potato has _________.
A．one part onlyB．two partsC．three partsD．four parts
小题2:The best part of the potato is the _________.
A．middleB．skinC．outside rimD．inside
小题3:What does this reading tell about potatoes? It tells us _________.
A．how to cook themB．how to cut potatoes
C．what is a potato made up ofD．how to eat them


We all know that if we want to keep our body in good shape we have to do physical exercise regularly as well as be careful with what we eat. What we tend to forget is that this goes for our eyes as well. Medical science confirms that a diet rich in carotenoids (类胡萝卜素) can help maintain good vision(维持好视力) and prevent against a number of eye diseases. Here's some advice about how to choose the right diet to keep your eyes healthy.
— Eat orange food. Fruits and vegetables with orange flesh are rich in carotenoids. In addition to carrots，oranges，pumpkins and sweet potatoes are also available. All of these contain high levels of carotenoids，which help to maintain good vision.
— Include dark green vegetables，such as spinach (菠菜) and broccoli (西兰花) in your diet, to act as natural sunglasses. Recent scientific studies have shown that these vegetables can help block (阻挡) the damaging UV radiation(紫外线辐射)from the sun's rays.
— Prevent some eye diseases with orange juice, yellow corn, whole milk, nuts and leafy vegetables. These foods are good sources of vitamins A, C, D and E. All of these are  necessary to good eye health.
— Increase your intake of omega­3 with some sea fish, and some other seafood. Omega­3 helps build cell walls and is especially beneficial to keeping eyes healthy .It also helps regulate the eye's internal pressure and helps the eye dry up excess fluid.
小题1:We can learn from the first paragraph that healthy food　　　　.
A．keeps eyes healthy
B．means you don't need exercise
C．can help cure eye diseases efficiently(有效地)
D．means people don't have to wear glasses
小题2:Why should people eat orange food according to the text？
A．It is beneficial to building cell walls in eyes.
B．It is more delicious than other food.
C．It is good for eyesight.
D．It is rich in various vitamins.
小题3:Which of the following can help block the damaging UV radiation from the sun's rays？
A．Pumpkins. B．Juice.C．Nuts. D．Broccoli.
小题4:The purpose of the text is to tell people how to　　　　.
A．keep their body in good shape
B．choose a healthy diet for their eyes
C．prevent serious eye diseases
D．get natural sunglasses from food
阅读表达(共5小题；每小题3分，满分15分)
阅读下面短文并回答问题，然后将答案写到答题卡相应的位置上（请注意问题后的词数要求）。
If you are worried about things and are under a lot of stress at work or school, then you are probably not sleeping well. Worry can keep you awake, and turning in bed until the early hours of the morning when you eventually fall asleep. When you wake up, you don’t feel refreshed, but tired and worn out and unable to face a new day.
Dr. Henry Winkle, in a recent newspaper article entitled StressandSleep, indicates that stress / worry and (lack of ) sleep are directly related. Dr. Winkle says, “The more we worry, the less we sleep, the more we are unable to deal with stress. If we can find a way to get a good night’s sleep，” he adds, “we can often find the energy to deal with what’s worrying us.”
So, what is a good night’s sleep? Research shows that the amount of sleep which people need in order to keep healthy varies a lot. Seven hours is about the average amount, though strangely enough, sleeping longer often gives you a headache instead of making you feel more refreshed.
Dr. Winkle believes that preparing for sleeping is important. People who work late should try to give themselves a short break and do something restful before going to bed. This could be watching TV or listening to music. Doing some exercise earlier in the day should help you to feel physically as well as mentally tired. A bedtime drink can also help, but coffee or tea should be avoided as they contain caffeine and will keep you awake. “When you put the light out，” Dr. Winkle says, “concentrate on relaxing your muscles, working slowly up from your feet, and you’ll be asleep before you know it.”
小题1:What is the best title of the passage?  (No more than 10 words)
小题2:What does the underlined word “indicates” in the second paragraph mean？(1 word)
小题3:What’s the relationship between stress and sleep according to Dr. Henry Winkle? (No more than 20 words)
小题4:Someone says that the longer you sleep, the better you feel. Try to find some arguments from the passage against the idea. (No more than 30 words)
小题5:Doing what things can help us fall asleep quickly? (No more than 10 words)
If it really is what’s on the inside that counts, then a lot of thin people might be in trouble.
Some doctors now think that the internal(内部的) fat surrounding important organs like the heart or liver could be as dangerous as the external fat which can be noticed more easily.
“Being thin doesn’t surely mean you are not fat,” said Dr Jimmy Bell at Imperial College. Since 1994, Bell and his team have scanned nearly 800 people with MRI machines to create “fat maps” showing where people store fat.
According to the result, people who keep their weight through diet rather than exercise are likely to have major deposits of internal fat, even if they are slim.
Even people with normal Body Mass Index scores can have surprising levels of fat deposits inside. Of the women, as many as 45 percent of those with normal BMI scores (20 to 25) actually had too high levels of internal fat. Among men, the percentage was nearly 60 percent.
According to Bell, people who are fat on the inside are actually on the edge of being fat. They eat too many fatty and sugary foods, but they are not eating enough to be fat. Scientists believe we naturally store fat around the belly first, but at some point, the body may start storing it elsewhere.
Doctors are unsure about the exact dangers of internal fat, but some think it has something to do with heart disease and diabetes. They want to prove that internal fat damages the body’s communication systems.
The good news is that internal fat can be easily burned off through exercise or even by improving your diet. “If you want to be healthy, there is no short cut. Exercise has to be an important part of your lifestyle,” Bell said.
小题1:According to the pass age, which of the following is WRONG?
A．People with heart disease all have internal fat.
B．People can get rid of internal fat by improving diet.
C．Men are more likely to have too much internal fat.
D．Exercise can help to reduce the internal fat.
小题2:From the last paragraph, we can find that ______.
A．whether internal fat can lead to disease has been proved
B．exercise plays an important role in people’s life for keeping healthy
C．thin people usually have internal fat even if they are slim
D．it is easier to burn off internal fat than external fat
小题3:Doctors have found ______.
A．the exact dangers of internal fat
B．internal fat is the cause of heart disease and diabetes
C．being slim doesn’t mean you are not fat inside
D．being slim is not dangerous at all
小题4:The underlined part in the last paragraph means ______.
A．a long roadB．a clear difference
C．an easy wayD．a short distance
There is an English saying :“laughter is best medicine .”Until recently ,few people took the saying seriously .Now however ,doctors have begun to look into laughter and the effects it has on the human body .They have found that laughter really can improve people’s health .
Tests were carried out to study the effects of laughter on the body .People watched funny films while doctors checked their hearts ,blood pressure ,breathing and muscles .It was found that laughter had similar effects to physical exercise .It increases blood pressure ,the heart beating and breathing ; it also works several groups of muscles in the face ,the stomach ,and even the feet .If laughter exercises the body ,it must be beneficial .
Other tests have shown that laughter appears to be able to reduce the effect of pain on the body .In one experiment doctors produced pain in groups of students who listened to different radio programmes .The group that tolerated(忍耐)the pain for the longest time was the groups which listened to a funny programme .The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish both stress and pain .
As a result of these discoveries ,some doctors in the United States now hold laughter clinics ,in which they help to improve their patients’ condition by encouraging them to laugh .They have found that even if their patients do not really feel like laughing ,making them smile is enough to produce beneficial effects similar to those caused by laughter .
小题1:Doctors have proved the following EXCEPT that      .
A．smiling does good to health
B．laughter can be tolerated
C．there is a way to reduce pain
D．laughter can work the muscles in the feet
小题2:The main idea of the passage is       .
A. laughter and physical exercise have similar effects on the human body
B smile can produce the same effects as laughter
C. pain can be reduced by laughter
D. laughter is the best medicine
小题3:The students who    tolerated the pain for the longest time .
A．listened to different radio programmes
B．could produce a kind of chemical
C．don’t have stress of pain
D．listened to a funny programme
小题4:The underlined word “diminish” is similar to       .
A．testB．stopC．reduceD．increase
小题5:Doctors hold laughter clinics _________.
A．to give better condition to their patients
B．in order to improve patients’ health
C．to make patients smile
D．to prove smile and laughter have the same effect
Chocolate is good for your heart, skin and brain. Usually, people think that chocolate is bad for their health. They describe chocolate as “something to die for” or say “death by chocolate”. Now they should bite their tongues! Evidence(证据) is showing that some kinds of chocolate are actually good for you in the following ways:
A happier heart
Scientists at Harvard University recently examined 136 studies on cocoa—the main ingredient in chocolate and found that it does seem to strengthen the heart. Studies have shown heart benefits from increased blood flow. These benefits are the result of cocoa’s chemicals, which seem to prevent both cell damage and inflammation(炎症).
Better blood pressure
If yours is high, chocolate may help. Jeffrey Blumberg from Tufts University recently 
found that people with high blood pressure who ate 3.5 ounces of dark chocolate 
per day for two weeks their blood pressure drop quickly.
Muscle magic
Chocolate milk may help you recover after a hard workout(锻炼). In a small study at Indiana University, people who drank chocolate milk between workouts did better on a tiredness test than those who had some sports drinks.
Better for your skin. German researchers gave 24 women a half-cup of special cocoa every day. After three months, the women’s skin was moister(滑润的)and smoother. The research shows that chocolate helps protect and increase blood flow to the skin, improving its appearance.
Brain gains
It sounds almost too good to be true, but research suggests that chocolate may improve your memory, attention span, reaction time, and problem-solving by increasing blood flow to the brain.
小题1:Which of the following is wrong?                                            
A．Coca’s chemicals can prevent both cell damage and inflammation.
B．Chocolate may help you lower your blood pressure.
C．People early know chocolate is good for their health.
D．Chocolate may improve your memory, attention span, reaction time, and problem-solving.
小题2:What’s the meaning of the underlined sentence in the fourth paragraph?
A．Sports drinks are better than chocolate milk.
B．Sports drinks can make people easy to be tired.
C．Drinking milk can keep you energetic at work.
D．We should drink chocolate milk between times when we work hard.
小题3:What’s the main idea of the text?
A．Chocolate, a Healthy FoodB．More Chocolate, Less Health
C．Chocolate and Blood PressureD．Advice on Eating Chocolate
小题4:What’s the meaning of “bite their tongues” in the first paragraph?
A．Think of it.B．Speak up. C． Stop talkingD．Listen to it
All over the world people enjoy sports. Sports help to keep people healthy, happy and help them to live longer．
Sports change with the season． People play different games in winter and summer．
Games and sports often grow out of people’s work and everyday activities． The Arabs use horses or camels in much of their everyday life; they use them in their sports, too．
Some sports are so interesting that people everywhere go in for them． Football, for example, has spread around the world． Swimming is popular in all countries near the sea or in those with many rivers．
Some sports or games go back to thousands of years, like running or jumping． Chinese boxing, for example, has a very long history． But basketball and volleyball are rather new． Neither one is a hundred years old yet． People are inventing new sports or games all the time．
People from different countries may not be able to understand each other, but after a game they often become good friends． Sports help to train a person’s character(性格)． One learns to fight hard but fight fair, to win without pride and to lose with grace(体面)
小题1:According to this passage we know that _____．
A．people began to play about one hundred years ago
B．about 100 years ago people ran or jumped when they played
C．basketball has a longer history than volleyball
D．not all the games have a long history
小题2:The writer didn’t tell us in this passage that _____．
A．basketball was invented in America
B．sports change with the season
C．games and sports often grow out of people’s work and everyday activities
D．football is played all over the world
小题3:People all over the world enjoy sports because _____．
A．sports are interesting
B．sports help to keep people healthy , happy and to live longer
C．sports help to train one’s character
D．all of the above
小题4:From this passage we can see that_____．
A．sports and games are unimportant things that people do
B．sports and games should be treated(对待)only as amusement(娱乐活动)
C．sports and games are only useful to the old
D．sports and games can help people understand each other.
A purple tomato genetically engineered to contain nutrients more commonly seen in dark berries helped cancer in mice, British researchers said on Sunday. The finding, published in the journal Nature Biotechnology, bolsters the idea that plants can be genetically modified(changed) to make people healthier.
Cancer-prone mice fed the modified fruit lived significantly longer than animals fed a standard diet with and without regular tomatoes, Cathie Martin and colleagues at
the government-funded John Innes Center in Britain reported. “The effect was much bigger than we had expected.” said Martin, a plant biologist.
The study focused on anthocyanins，a type of antioxidant found in berries such as blackberries and blackcurrants that have been shown to lower risk of cancer, heart diseases and some neurological diseases. While an easy way to improve health, many people don’t eat enough of these fruits, the researchers said. Using genes from the snapdragon flower, the researchers discovered they could get the tomatoes to make anthocyanins---- turning the tomato purple in the process.
Mice genetically engineered to develop cancer lived an average of 182 days when they were fed the purple tomatoes, compared to 142 days for animals on the standard diet. “It is greatly encouraging to believe that by changing diet, or specific components in the diet. You can improve health in animals and possibly humans.” Martin said in a telephone interview.
The researchers warned that trials in humans are a long way off and the next step is to investigate( look into) how the antioxidants actually affect the tumors to promote better health. But the findings do support the formal research suggesting that people can significantly improve their health by making simple changes to the daily diet, other researchers said.
“It’s exciting to see new techniques that could potentially make healthy foods even better for us.” said Doctor Lara Bennett, science information office at Cancer Research UK. “ But it is too early to say whether anthocyanins obtained through diet could help to reduce the risk of cancer.”
小题1:The text mainly tells us _________.
A．what can prevent people from having cancer.
B．Scientists have developed cancer- fighting tomato.
C．ways to live much longer have been found by scientists.
D．genetically engineered food is good for people’s health.
小题2:In the first paragraph the underlined word “ bolster” probably means _______
A．changeB．reduceC．supportD．test
小题3:Which of the following was NOT the result found in the study?
A．Blackberries and blackcurrants can lower risk of cancer.
B．The anthocyanins can make the purple tomatoes grow stronger.
C．Genes from snapdragon flowers can be put into common tomatoes.
D．Mice fed the modified fruit lived longer than the common ones.
小题4:According to Dr. Lara Bennett, the effects of anthocyanins through diet on human being________
A．are not certain now.
B．have been proved
C．are very harmful
D．are hard to be tested

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网