题目
题型：同步题难度：来源：
researchers.
Their study found that theobromine , found in cocoa, was nearlv a third more effective in stopping
coughs than codeine,which was considered the best cough medicine at present.
The Imperial College London researchers who published their resulcs online said the discovery could
lead to more effective cough treatment. "While coughing is not necessarily harmful it can have a major
effect on the quality of life,and this discoverv could be a huge step forward in treating this problem. " said
Professor Peter Barnes.
Ten healthy volunteers were given theobromine,codeine or a placebo, a pill that contains no medicine,
during the experiment. Neither the volunteers nor the researchers knew who received which pill. The
researchers then measured levels of capsaicin,which is used in research to cause coughing and as a sign
of how well the medicines arc stopping coughs.
The team found that . when the volunteers were given theobromine , the capsaicin needed to produce a cough was around a third higher than in the placebo group. When they were given codeine they needed
only slightly higher levels of capsaicin to cause a cough compared with the placebo.
The researchers said that theobromine worked by keeping down a nerve activity , which causes
coughing. They also found that unlike some standard cough treatments, theobromine caused no side
effects such as sleepiness.
B. can be harmful to people"s health
C. cannot be separated from chocolate
D. can be a more effective cure for coughs
B. Codeine.
C. Capsaicin.
D. Placebo.
B. were divided into three groups
C. received standard treatments
D. suffered little side effects
B. Chocolate May Cure Coughs
C. Cough Treatment:A Hard Case
D. Theobromine Can Cause Coughs
答案
核心考点
试题【阅读理解 Something in chocolate could be used to stop coughs and lead to more ef】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
This is a dangerous world we live in. The number of murders goes up every year,
people are dying of cancer, more people contract (感染)HIV, more teens are using
drugs, etc. You know this because you"ve heard all the statistics on the news and in
the paper. But do you really have an accurate idea what they mean? The numbers
are going up, but how do they compare to the growth in population? Are more cases
of these diseases being reported because of better testing techniques, or are the
diseases more common? The fact is that without knowing the background statistics
mean very little.
This growing trend of reporting only part of the information is becoming dangerous.
For example, several years ago a high school student reported the dangers of the
chemical known as dihydrogen monoxide. This chemical,found in most cancerous
umors(肿瘤 ) ,is often found in the blood of people drunk on alcohol, and causes
complete physical and mental dependence for those who take the chemical even once.
After reading his report, more than 75% of his Advanced Placement Chemistry class
voted to forbid this dangerous chemical! Every one of the above statements is true,
yet this chemical is necessary to all life on earth. The students made the mistake
because they voted knowing only a few statements and statistics, rather than the
chemical"s full background.
The point of this article is that one should be aware of what is and is not being
said. When one finds a new fact or number , one should try to consider other
important information before forming an opinion with only half-truths. Always
remember that the author is trying to convince you of his or her own view, and
will leave out information that is different to his view. For example, look again at
the statistics that suggest skiing is safe. Only 32 people may die each year when
skiing, while 897 die from lightning strikes, but which is really the most dangerous?
If you think about it, you realize far fewer people go skiing each year than the number
of people who are in danger of a lightening strike. When you think about it ,skiing
is more dangerous than you might at first think when looking at statistics. lf we
teenagers are to be left this world. we had better be able to think critically, and
form our own views, rather than be easily persuaded by another"s. To be warned
is to be prepared.
B. We get a lot of" false statistics from the media.
C. There are around us more and more murders,diseases etc.
D. Statistics alone without full background doesn"t give us an accurate picture of things.
B. To argue that high school students are easily persuaded.
C. To prove what is necessary to us might be dangerous.
D. To warn us of the harmful substance around us.
B. the author is trying to show what he or she says is true
C. too much information will make readers feel confused
D. readers are not able to analyze so much information at once
B. We should leam to think critically and look at problems from all sides.
C. The growing trend of reporting only half-truths is getting out of control.
D. Teenagers ought to improve their ability of telling right from wrong
an epidemic (流行病) of sleepiness in the nation."I can"t think of a single study that hasn"t
found Americans getting less sleep than they ought to," says Dr David.Even people who
think they are sleeping enough would probably be better off with more rest.
The beginning of our sleepdeficit crisis can be traced back to the invention of the light
bulb a century ago.From diary entries and our personal accounts from the 18th and 19th
centuries,sleep scientists have reached the conclusion that the average person used to sleep
about 9.5 hours a night."The best sleep habits once were forced on us,when we had nothing
to do in the evening down on the farm,and it was dark." By the 1950s and 1960s,the sleep
schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had
to wake to an alarm clock."People cheat in their sleep,and they don"t even realize they"re
doing it," says Dr David."They think they"re okay because they can get by on 6.5 hours,
when they really need 7.5,8 or even more to feel ideally energetic."
Perhaps the most merciless robber of sleep,researchers say,is the complexity of the day.
Whenever pressures from work,family,friends and community increase,many people
consider sleep the least expensive item on their programme."In our society,you"re considered
dynamic if you say you need only 5.5 hours" sleep.If you"ve got to get 8.5 hours,people
think you lack drive and ambition."
To determine the consequences of sleepdeficit,researchers have put subjects through a
set of psychological and performance tests requiring them,for instance,to add columns of
numbers or recall a passage read to them only minutes earlier."We"ve found that if you"re in
sleepdeficit,performance suffers," says Dr David."Shortterm memory is weakened,as are
abilities to make decisions and to concentrate."
B．The epidemic of sleepiness in the modern times.
C．The history of people"s sleeping patterns.
D．The minimum of our sleeping hours.
B．Some people can remain energetic with only 6.5 hours" sleep a night.
C．If they get 8.5 hours" sleep,people will be full of drive and ambition.
D．People"s mental power suffers if they are lacking in sleep.
B．they knew what was best for their health
C．they had no electricity
D．they were not so dynamic and ambitious as modern people are
B．the pressures of the day
C．the sufficient energy modern people usually have
D．loud noises in modern cities
B．Branches of knowledge studied in a school.
C．Persons or things being treated in a certain way or being experimented on.
D．Any member of a state apart from the supreme ruler.
is usually a healthy source of protein in the diet, there may be several reasons to avoid biting into a forkful
of fish. Before you break out the tartar sauce, learn some facts about fish to keep yourself and the
environment healthy.
Some fish may contain harmful chemicals, which can be the result of both natural causes and water
pollution. Mercury is a poisonous chemical, which occurs naturally in oceans and the Earth"s crust, but
also comes from manmade sources, such as pesticides, burning garbage, and the releasing of fossil fuels.
Polychlorinated biphenyls (PCBs), a group of chemicals, can also be found in some fish. These
dangerous manmade chemicals were used in many industries until 1977, when they were banned. PCBs
were released or leaked into the air and water and have been transported around the globe.
How do mercury and PCBs end up in fish and the food supply? When they are released into the air,
they attach themselves to particles. These particles settle on the ground and in the water and are
eventually eaten by microscopic organisms. Small fish eat the microorganisms, and large fish eat the small
fish and on up the food chain.
Because they can negatively affect your health, the U. S. Environmental Protection Agency advises
that kids younger than 15 years old avoid fish that contain high levels of mercury and PCBs. These
include shark, swordfish, king mackerel, and tilefish.
There are also many types of fish that are good for you, but because of overfishing are in danger of
being wiped out. Some are being fished in the wild so much that they cannot reproduce fast enough to
survive. Others are being farmed in ways that are not environmentally friendly. These fish include red
snapper, Atlantic salmon, blue fin tuna, and king crab.
Despite these problems, there are several fish that are both healthy and sustainable, such as Alaskan
salmon, American catfish, Pacific cod, and several farmraised fish and shellfish.
【文章大意】 鱼虽富含蛋白质, 但本文却建议小孩子不要吃鱼以及说明了其中的原因.
B. Mercury and PCBs-particles-organisms-fish-food supply
C. Mercury and PCBs-particles-fish-organisms-food supply
D. Mercury and PCBs-organisms-ground and water-fish-food supply
B. particles
C. microscopic organisms
D. mercury and PCBs
B. King crab；king mackerel；Pacific cod.
C. Pacific cod；Alaskan salmon；American catfish.
D. Pacific cod；Atlantic salmon；swordfish.
B. overfishing is the main cause of fish poisoning
C. most types of fish can be safely raised on fish farms
D. the government should ban children under 15 from eating fish
B. if you want to be more environmentally friendly, eat less fish
C. PCBs were not allowed to be used in food industry before 1977
D. adults might be less affected by high chemical levels in fish
young,as part of efforts to mark World Mental Health Day.
More than 15 percent of the Chinese youth have been found with mental problems,and about 30
million young people under 17 are suffering from depression,the Shanghaibased Wenhui Daily reported.
The World Health Organization estimated that before 2020,the rate of children with mental problems
will increase to 50 percent,and mental problems will become a major factor behind death and illness in
the young worldwide.
Deng Xiaohong,the spokesperson for the Beijing Municipal Health Bureau,said rapid social change is
one of the reasons behind the rising number of youngsters with psychological problems.
If these mental diseases are not addressed on time,occurrence of crime,drugtaking and other dangerous behavior is expected to rise.
Experts said mental disease could be caused by many factors,such as the inability to handle
interpersonal relations well,unstable emotions and pressure from the overload of study. A number of
experts have also said the onechild policy is another reason leading to poor mental health in the young.
Children were said to be too "spoiled" and "selfish" in onechild families. Schools in many cities were
reported rolling out measures to help students maintain their mental wellbeing. Yin Jingmiao,a teacher of
the Beijing No. 105 Middle School,told China Daily that the school invites psychologists to provide
counseling to students three times a month. "Students can be arranged to have 40minute counseling
sessions," Yin said. The school also gives lectures on mental health to senior grade students before
they take the national college entrance exams,to help ease any anxiety arising from the tests.
1．What is the purpose of the passage?
A．To urge awareness on mental health of the young.
B．To give the details of the problems the Chinese youth are facing today.
C．To recommend that schools should invite more psychologists to help solve the mental
problems among the youth.
D．To show us the causes of the mental problems among students.
2．The underlined word "addressed" in the fifth paragraph most probably means ______.
A．talked about
B．dealt with
C．satisfied
D．introduced
3．From the passage we can know that the causes of mental problems are mainly the
following EXCEPT ________.
A．onechild policy
B．lack of ability to handle interpersonal relations well
C．lack of special training in mental health
D．heavy burden from study0
4．Which of the following statements is true according to the passage?
A．By 2020,about 50 percent of the students in China will have mental problems.
B．Mental problems mainly appear among the youth while they are seldom seen among adults.
C．China has the largest number of youngsters with psychological problems.
D．Many schools have realized the problem and taken measures.
5．We can infer that to bring down the occurrence of mental problems among the youth,_______.
A．attention should be paid to the education of the only child
B．psychologist must be a necessary part of school
C．the government will cancel tests to ease the pressure on the students
D．rapid social change plays the leading part in causing mental problems
Frankfurt to sing songs, build fires and roll in the mud.
The birthplace of kindergarten is returning to its roots. While schools and parents elsewhere are
pushing young children to read, write and surf the Internet earlier in order to prepare for an increasingly
cutthroat(竞争激烈的) global economy, some little Germans are taking a less traveled path-deep into
the woods.
Germany has about 700 Wald kindergartens, or forest kindergartens, in which children spend their
days outdoors all year round. Blackboards replaced by the Black Forest. Erasers give way to pine
cones(松果). Hall passes aren"t required, but bug repellent(驱虫剂) is a good idea.
The schools are a throwback(返回) to Friedrich Froebel, the German educator who opened the
world"s first kindergarten, or children"s garden, more than 150 years ago. Mr. Froebel advised that
young children should play in nature, free from too many numbers and letters.
Only a small number of German children attend Wald kindergarten, but their numbers have been
rising since local parent groups began setting up these programs in the mid1990s, following the lead of
a Danish community. Similar schools exist in smaller numbers in Scandinavia, Switzerland and Austria.
The concept is arousing interest far afield-even in the U. S., whose first Wald kindergarten opened in
Portland, Ore., last fall.
Academic studies of such schools are in their infancy(初期). Some European researchers believe
Wald kindergarten kids exercise their imaginations more than their brickandmortar_peers do and are
better at concentrating and communicating. Despite dangers, from insects particularly, the children
appear to get sick less often in these freshair settings. Studies also suggest their writing skills are less
developed, though, and that they are less skills than other children at distinguishing colors, forms and sizes.
1. The passage mainly talks about ________.
A. forest kindergartens
B. a great German educator
C. the birthplace of kindergarten
D. education in Germany
2. Which of the following statements is TRUE according to the passage?
A. The kids in the Wald kindergarten spend their days outdoors once a week.
B. There are more than 700 Wald kindergartens in Europe.
C. Friedrich Frobel opened the world"s first forest kindergarten.
D. Nearly all the German children attend Wald kindergarten.
3. What might NOT be found in the "forest kindergartens"?
A. Black Forest.
B. Pine cones.
C. Bug repellent.
D. Many numbers and letters.
4. From the last paragraph, we can learn that "brickandmortar peers" refers to ________.
A. kids who stay at home
B. kids who study in the classroom
C. kids who like brick and mortar
D. kids who suffer from illness
5. Kids in the Wald kindergarten may ________.
①be more imaginative
②be good at exchanging ideas with other kids
③face more dangers in the forest
④be skillful at writing
A. ①③④
B. ②③④
C. ①②③
D. ①②④
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