Most schools forbid chewing gum, but in a few years they might consider changing that rule. Why? Scientists are finding evidence that gum chewing may be good for your health. It may even help improve your test scores.
This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (肠) can.
That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and more. Scientists might even create antimicrobial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake.
Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes.
The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use.
For now, Stay Alert is available only to the military (军队). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
1. The passage mainly talks about _____.
A.the rule of forbidding chewing gum in school |
B.new research on chewing gum |
C.different kinds of chewing gum |
D.the relationship between chewing gum and medicine |
2. What does the underlined word “hits” in Paragraph 6 probably mean?
A.Touches. | B.Attacks. | C.Takes effect. | D.Affects badly. |
3.According to the passage, Stay Alert is a gum which can help people _____.
A.stay awake | B.fight colds |
C.cure headaches | D.overcome nervousness |
4. It can be inferred from the passage that _____.
A.stay Alert is not easy to store |
B.stay Alert needs water to swallow |
C.stay Alert is available to the public now |
D.we can’t buy gums that cure bad breath now |
高三英语阅读理解中等难度题
Most schools forbid chewing gum, but in a few years they might consider changing that rule. Why? Scientists are finding evidence that gum chewing may be good for your health. It may even help improve your test scores.
This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (肠) can.
That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and more. Scientists might even create antimicrobial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake.
Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes.
The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use.
For now, Stay Alert is available only to the military (军队). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
1. The passage mainly talks about _____.
A.the rule of forbidding chewing gum in school |
B.new research on chewing gum |
C.different kinds of chewing gum |
D.the relationship between chewing gum and medicine |
2. What does the underlined word “hits” in Paragraph 6 probably mean?
A.Touches. | B.Attacks. | C.Takes effect. | D.Affects badly. |
3.According to the passage, Stay Alert is a gum which can help people _____.
A.stay awake | B.fight colds |
C.cure headaches | D.overcome nervousness |
4. It can be inferred from the passage that _____.
A.stay Alert is not easy to store |
B.stay Alert needs water to swallow |
C.stay Alert is available to the public now |
D.we can’t buy gums that cure bad breath now |
高三英语阅读理解中等难度题查看答案及解析
Most schools forbid chewing gum, but in a few years they might consider changing that rule. Why? Scientists are finding evidence that gum chewing may be good for your health. It may even help improve your test scores.
This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (肠) can.
That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and more. Scientists might even create antimicrobial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake.
Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes.
The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use.
For now, Stay Alert is available only to the military (军队). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
1.The passage mainly talks about _____.
A. the rule of forbidding chewing gum in school
B. new research on chewing gum
C. different kinds of chewing gum
D. the relationship between chewing gum and medicine
2.What does the underlined word “hits” in Paragraph 6 probably mean?
A. Touches. B. Attacks. C. Takes effect. D. Affects badly.
3.According to the passage, Stay Alert is a gum which can help people _____.
A. stay awake B. fight colds
C. cure headaches D. overcome nervousness
4. It can be inferred from the passage that _____.
A. stay Alert is not easy to store
B. stay Alert needs water to swallow
C. stay Alert is available to the public now
D. we can’t buy gums that cure bad breath now
高三英语阅读理解中等难度题查看答案及解析
Most schools forbid chewing gum(嚼口香糖), but in a few years they might consider changing that rule. Why? Scientists are finding evidence that gum chewing may be good for your health. It may even help improve your test scores. This exciting research is just beginning. And in the meantime, companies are also experimenting with adding vitamins, minerals, medicines, and other substances that could give gum the power to cure headaches and fight everything from serious diseases to bad breath.
Other researchers are finding that gum might work better than a pill to deliver medicines and other substances into the bloodstream. That’s because the lining (膜) of our cheeks can absorb certain substances more quickly than our stomachs and intestines (肠) can. That discovery could help other researchers develop medicine-containing gums that fight colds, ease headaches, battle nervousness, and
more. Scientists might even create anti-microbial (抗菌的) gums that cure bad breath.
Those projects may take years, but gum scientists have already had at least one recent success: They’ve created a gum that could help us stay awake. Researchers have produced a gum called Stay Alert. Each stick has as much caffeine as a cup of coffee. It can take an hour for the caffeine in coffee to have its full effect, but the caffeine in Stay Alert hits in just a few minutes. The gum is easy to transport and it’s stable in cold and hot climates. Unlike a pill, it doesn’t require water to swallow. Those qualities make it easy for soldiers to use. For now, Stay Alert is available only to the military (军队). The manufacturer may one day offer it for sale to the public. People who work at night, such as truck drivers and medical personnel who ride in ambulances, might benefit from a product like Stay Alert.
1.The passage mainly talks about _____.
A. the rule of forbidding chewing gum in school
B. new research on chewing gum
C. different kinds of chewing gum
D. the relationship between chewing gum and medicine
2.What does the underlined word “hits” in Paragraph 6 probably mean?
A. Touches. B. Attacks. C. Takes effect. D. Affects badly.
3.According to the passage, Stay Alert is a gum which can help people _____.
A. stay awake B. fight colds
C. cure headaches D. overcome nervousness
4.It can be inferred from the passage that _____.
A. stay Alert is not easy to store
B. stay Alert needs water to swallow
C. stay Alert is available to the public now
D. we can’t buy gums which cure bad breath now
高三英语阅读理解中等难度题查看答案及解析
It is a tall tale that terrifies most young children. Swallow a piece of chewing gum and it will remain in your body for seven years before it is digested. An even worse tale is that swallowed gum can wrap itself around your heart.
But what does happen if you should accidentally eat a stick of gum? Chewing gum is made out of gum base, sweeteners, coloring and flavoring. The gum base is pretty indigestible一it is a mixture of different ingredients that our body can’t absorb.
Most of the time, your stomach really cannot break down the gum the way it would break down other foods. However, your digestive system has another way to deal with things you swallow. After all, we eat lots of things that we are unable to fully digest. They keep moving along until they make it all the way through the gut and come out at the other end one or two days later.
The saliva in our mouths will make an attempt at digesting chewing gum as soon as we put it in our mouths. It might get through the shell but many of gum’s base ingredients are indigestible. It’s then down to our stomach muscles一which contract and relax, much like the way an earthworm moves一 to slowly force the things that we swallow through our systems.
Swallowing a huge piece of gum or swallowing many small pieces of gum in a short time can cause a blockage within the digestive system, most often in children, who have a thinner digestive tube than adults 一but this is extremely rare.
1.Children might feel terrified after swallowing chewing gum mainly because .
A. they believe the tall tales about chewing gum
B. chewing gum will stay in their body for years
C. their heart will be wrapped by chewing gum
D. chewing gum is indigestible for children
2.What happens to the food that can’t be fully broken down?
A. It remains in our digestive system forever.
B. It will be eventually moved out of our body.
C. It will fight against the power of the gut.
D. It will stick to the gut for one or two days.
3.What would be the best title for text?
A. How does our digestive system work?
B. Can chewing gum be swallowed by kids?
C. Does swallowing chewing gum matter?
D. Why swallowing chewing gum frightens kids?
高三英语阅读理解中等难度题查看答案及解析
SINGAPORE - Singapore on Thursday stuck to its I8-year ban on the import and sale of chewing gum (口香糖), which has become an international symbol of the city-state's image as a strict society.
"The government stands by its decision to ban chewing gum. Chewing gum has not been a significant problem since that ban took effect, there have been concerns that lifting the ban on chewing gum could result in chewing gum litter and weaken ongoing efforts to control littering." Maliki Osman, parliamentary secretary at the Ministry of National Development, told parliament.
Osman said as the reason for the imposition (强迫接受) of the ban is still suitable, "the government's position is that the ban shall remain." He was responding to a question in parliament from Denise Phua, a fellow member of the ruling People's Action Party who argued that the ban had been used to criticize its tough governance laws.
"I think this ban ... now needs a re-thinking. Surely Singapore will not consider banning sweets because of sweet wrapper litter or ice-cream stick litter," she said.
Singapore, known worldwide for its high-quality clean image, banned the import and sale of chewing gum in 1992 in a bid to cope with the problem of people sticking the gum on chairs, tables, lifts and other public areas.
One of the key reasons for the ban had been the disturbance of services on Singapore's subway train system because of chewing gum being stuck on the doors and causing delays. Singapore partially lifted the ban in 2004 by allowing the sale of chewing gum used for health reasons, such as dental health gum, after the conclusion of a US-Singapore Free Trade Agreement.
Australian tourist Hazel Lane, 48, said keeping the ban on chewing gum was sure Singaporeans wouldn't want to spoil their "ridiculous" and she told AFP that she's own environment and their own image. Angel Wong, 34, a tourist from Hong Kong, however, welcomed the news. She said, "I come from a country that doesn't have the ban and there's always chewing gum all over the floor, To me the ban doesn't change my image of Singapore so it’s a good thing because it keeps the environment clean."
1. The ban on the import and sale of chewing gum was started in 1992 ______.
A. when people began to buy the gum everywhere
B. to bid to stop people sticking the gum in the public
C. because the gum delayed the subway
D. when the country was in a bid to show its city-state's clean image
2. What can we learn about the ban according to Maliki Osman?
A. The government will keep it ongoing forever.
B. It will lead to littering the chewing gum everywhere.
C. More and more concerns about the ban will make chewing gum out of control
D. Banning chewing gum is still one of the important jobs of the government now.
3. According to what Denise Phua said in paragraph 4, we can know that she ______.
A. would say yes to the ban
B. would think more about the ban again
C. would like the government to take the ban on second thought
D. argued that the ban should be cancelled
4. It can be inferred from the passage that ______.
A. whether the ban needs changing or not has become a problem to be discussed
B. Singapore's subway train system was delayed by chewing gum
C. chewing gum will soon be banned in many countries
D. only the ban has led to the friendly environment in Singapore
5. What's the main idea of the last paragraph?
A. There is such a ban in China and Australia.
B. Different people have their own ideas about the ban.
C. The ban is either welcomed by China or by Australia.
D. The ban does good to keep the environment clean.
高三英语阅读理解简单题查看答案及解析
Scientists have developed a non-stick chewing gum(口香糖). The new gum can ________1.________(remove) easily from pavements, shoes and clothes. It’s the result of polymer (聚合体) research at the University of Bristol and could be launched commercially in 2008. ________2. it catches on(流行), the product will solve________3.________major headache for present authorities around the world.
“A great________4.________(disadvantage) of our Clean Gum is that it is easy to remove and has the potential to be________5.________(environment) degradable (可降解的),” said Terence Cosgrove, a professor of chemistry________6.________helped to found a company called Revolymer to commercialize the technology.
Today’s chewing gums are made ________7.synthetic latex(人工制造的乳液), which is resistant to the weather and is strongly sticky. The new gum adds a special polymer to change its properties(特性), ________8.________(make) it far less sticky.
In two street trials,________9.________commercial gums remained stuck to the pavement ________10.________ Clean Gum came away naturally in all cases.
高三英语其他题中等难度题查看答案及解析
Can' t you stand the sound of heavy breathing or sipping soup? Does the sound of someone chewing gum next to you make your blood boil? You are not alone, but you are not going crazy-there’s a really scientific reason why.
If you shrink back when someone twists their knuckles(指关节), you might want to get checked out for misophonia, a brain abnormality that creates “a hatred of sounds such as eating, chewing, loud breathing, or even pen-clicking,” TIME reports. Actually, it’s just one of the strange habits that prove you’re smarter than everyone else. Although researchers first coined the term misophonia in 2001, doubt has been thrown on it by the medical community. But thanks to recent research, it can be safely drawn that everyday noises can ruin people’s lives. A team at Newcastle University in the U. K. examined MRI brain scans(核磁共振脑扫描) of those with and without misophonia while playing a range of sounds. The sounds were either neutral (like rain or water boiling), unpleasant (a baby crying or a person screaming), or trigger sounds (the sounds of breathing or eating).
The researchers noted significant changes in misophonia sufferers’ brain activity when they heard a “trig- ger sound.” Turns out those with misophonia have a developmental difference in their brains frontal lobe(额叶) that causes their brains to react harshly to those triggers. It also causes them to sweat and their heart rates to increase.
“For many people with misophonia, this will come as welcome news as for the first time we have shown a difference in brain structure and function in sufferers.” said Dr Sukhbinder Kumar. “This study shows the critical brain changes as further evidence to convince a skeptical medical community that this is a real disorder.”
1.What is the best title for the text?
A.Keep off such sounds around you B.Troubled by the sound of chewing
C.Can we make use of these sounds D.Never be afraid of such noise again
2.What can be inferred from the second paragraph?
A.Misophonia can be a sign of intelligence.
B.Misophonia is actually a physical disability.
C.The term misophonia has been widely accepted.
D.Noise pollution has ruined many lives until now.
3.What does Kumar think of the research?
A.Cold. B.Favorable.
C.Doubtful. D.Neutral.
4.Where is the text most probably taken from?
A.A guidebook. B.A review.
C.A magazine. D.An interview.
高三英语阅读理解中等难度题查看答案及解析
A few people were killed in the fire, but _____ were saved.
A.the most | B.most of them | C.most of whom | D.most |
高三英语单项填空简单题查看答案及解析
There have been big changes in the attitudes of most parents over the last few years. Physical punishment is banned in schools in most countries, and in many countries, there are moves to ban all physical punishment of children even at home. However, many parents still believe that they have the right to use some physical punishments to deal with certain misbehavior at certain ages.
It’s easy to find reasons to allow some physical punishments. One issue is that many parents find it very difficult to abandon physical punishment completely. Parents argue that this was the way they were brought up and that it didn’t do any harm to them. They believe that for the child’s sake they have the right to discipline the child in any way they consider fit, including using some physical punishments. The other one is that physical punishment can be quick and effective. There is not much point reasoning with a screaming child in the supermarket.
However, there are several reasons why we should stop using physical punishment. One point is that most parents are not trained to deal with misbehaving children. They don’t have enough resources or choices to handle the situation. As a result, they immediately react by hitting the child even if there are other solutions to the problem. Another point is that unless people are challenged or forced to change their belief, they may keep following negative habits. An example is seat belt use —now most people wear seat belts without thinking, while years ago the idea of using seat belts was strange to most people. In the same way, banning physical punishment will force people to change their habits.
In conclusion, parents have to change some of their belief and ideas about how children should be raised. It is possible to avoid the use of physical force, and doing so will help us move closer to the dream of removing violence from our society.
1.According to the first paragraph, many parents think that ____________.
A.they are free to use physical punishment on their children
B.most of the children behave badly in their daily life
C.they have changed their attitudes towards their children
D.physical punishment is effective to educate their children
2.Many parents won’t give up physical punishment because _____________.
A.they are disappointed with their children
B.they were brought up just in the same way
C.they don’t want to hurt their children badly
D.they don’t know what to do with their children
3.The author gives the example of using seat belts in order to show ____________.
A.most people are used to wearing seat belts
B.it’s not difficult to change some negative habits
C.seat belts are really very necessary and useful
D.people won’t change their old habits unless forced
4.The main purpose of the author in writing this passage is to ____________.
A.talk about a ban on using physical punishment
B.tell us we should educate our children in other ways
C.advise parents to give up using physical punishment
D.suggest physical punishment should be used at home
高三英语阅读理解中等难度题查看答案及解析
Most people, when they travel to space, would like to stay in orbit for a few days of more. And this stands to reason, if you’re paying $20,000 for your trip to orbit! Strain order for tourism to reach its full potential there’s going to be a need for orbital accommodation---or space hotels. What would a space hotel actually be like to visit? Hotels in orbit will offer the services you expect from a hotel------private rooms, meals, bars. But they’ll also offer two unique experiences: impressive views----of Earth and space---and the endless entertainment of living in zero gravity---including sports and other activities that make use of this.
The hotels themselves will vary greatly----from being quite simple in the early days to huge luxury structure at a later date. It’s actually surprising that as later as 1997, very few designs for space hotels were published. This is mainly because those who might be expected to design them haven’t expected launch costs to come down far enough to make them possible.
Lots of people who’ve been to space have described vividly what it’s like to live in zero gravity. There are obviously all sort of possibilities for dancing, gymnastics, and zero-G sports. Luckily, you don’t need to sleep much living in zero gravity, so you’ll have plenty of time for relaxing by hanging out in a bar with a window looking down at the turning Earth below.
Of course all good things have come to an end. Unfortunately, And so after a few days you’ll find yourself heading back enough you’ll be much more expert at exercising in zero gravity than you were when you arrived. You’ll be thinking how soon you can save up enough to get back up again---or maybe you should change jobs to get to work in an orbiting hotel.
1.When traveling in space, most people would like to stay in orbit for a few days because _______.
A.It is expensive to travel in space |
B.they would find the possible life in other star systems |
C.they could enjoy the luxury of space hotels |
D.they want to realise the full potential of tourism |
2.Which of the following is a unique experience that space hotels will offer?
A.The gravitational pull | B.The special views. |
C.The relaxation in a bar | D.The space walk. |
3.Which of the following is not discussed in the passage?
A.When was the space traveling made possible? |
B.What are the unique experiences that space hotels will offer? |
C.Why were there not many published designs for space hotels? |
D.How can the travelers enjoy themselves in space hotels? |
4.This passage is mainly about ________.
A.traveling in space | B.the ways of living in space hotels |
C.zero gravity and space hotels | D.the description of space hotels |
高三英语阅读理解简单题查看答案及解析