5.Something in chocolate could be used to stop coughs and lead to more effective medicines,say UK researchers.
Their study found that theobromine,found in cocoa,was nearly 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 results 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 discovery could be a huge step forward in treating this problem,"said Professor Peter Barnes.
Ten healthy volunteers were given theobromine,codeine or 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 medicine are stopping coughs.
The team found that,when the volunteers were given theobromine,the capsaicin need to produce a cough was around a third higher than in the placebo group.When they were given codeine they need 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 (神經(jīng)活動),which causes coughing.They also found that unlike some standard cough treatments,theobromine caused no side effects such as sleepiness.
24.According to Professor Barnes,theobromineD.
A.cannot be as effective as codeine
B.can be harmful to people's health
C.cannot be separated from chocolate
D.can be a more effective cure for coughs
25.We learn from the text that volunteers in the experimentB.
A.were patients with bad coughs
B.were divided into three groups
C.received standard treatments
D.suffered little side effects
26.Which of the following would be the best title for the text?B
A.Codeine:A New Medicine
B.Chocolate May Cure Coughs
C.Cough Treatment:A Hard Case
D.Theobromine Can Cause Coughs.

分析 本文主要是講巧克力中發(fā)現(xiàn)的theobromine(可可堿)可以用來治愈咳嗽.

解答 24-26 DBB
24.D 細節(jié)理解題.根據(jù)文章第二段that theobromine(可可堿),found in cocoa,was nearly a third more effective in stopping coughs than codeine,說明他們認為theobromine是一種有效的治療咳嗽的方法.故D正確.
25.B 細節(jié)理解題.根據(jù)第四段1,2行Ten healthy volunteers were given theobromine,codeine or placebo,a pill that contains no medicine,during the experiment.說明他們被分成三隊,每一隊都服用不同的東西.故B正確.
26.B 主旨大意題.根據(jù)文章第一段說明本文主要是講巧克力中發(fā)現(xiàn)的某種物質(zhì)可以用來治愈咳嗽.故B正確.

點評 本文較為簡單,以細節(jié)題考查為主,要求考生在閱讀時做好標志和符號,把握文章大意,仔細查找文中細節(jié),能根據(jù)文章內(nèi)容進行合理推斷.

練習冊系列答案
相關習題

科目:高中英語 來源: 題型:閱讀理解

5.The Gold Coast                    
Australia's Gold Coast is a destination waiting to be fully discovered.It caters(滿足) extremely well to locals and tourists alike.Whether it is a romantic getaway on the sc hedule,or a fun-filled family adventure holiday,the Gold Coast has much to choose from.
Get in
Located on the east coast of Australia,the Gold Coast is a one hour drive south of Brisbane,the capital city of the state of Queensland.
The Gold Coast Airport handles around 3.5 million passengers per year with frequent connections from major Australian cities and some international flights from New Zealand and Asia.
Electric City Train service runs half hourly from 6 am to midnight,7 days per week from Brisbane to the Gold Coast.Best Times to Visit the Gold Coast
Formal seasons are less apparent with an average of 300 days of sunshine a year,so it is not a matter of planning when,just planning how you're going to fit in a timetable of fun.
Clothing Standard-Be Free
Clothing is defined by what you choose to do while on Australia's Gold Coast-casual or sophisticated(高雅的).
Key themes this season:colourful,vibrant and comfortable within your own skin.
The best beauty tip-to be yourself.
Gold Coast Attractions
The Gold Coast has much to offer.
Form the Gold Coast,days-trips to one of the nearby national parks can be easily made.Springbrook in the mountains offers beautiful rainforest and hiking trails and excellent views over the Gold Coast.Around Surfers Paradise,the Mecca(麥加) of Surfing,you'll find a high concentration of anything that will please the tourist,ranging from hotels and restaurants to discos and theme parks.
56.Which of the means of transportation is the least common to visit the Gold Coast?B
A.By bus.
B.By ship.
C.By train.
D.By plane.
57.The underlined word"vibrant"is closest in meaning to the wordC.
A.dark     
B.formal          
C.bright          
D.expensive 
58.Which of the following statements is TRUE according to the passage?A
A.Tourists can experience four typical seasons on the Gold Coast.
B.Tourists are attracted to the Gold Coast only by its natural scenery.
C.Trains go from Brisbane to the Gold Coast every half an hour.
D.The Gold Coast is a perfect place for sea surfing.
59.In which section of a newspaper can you probably read this passage?B
A.International news.
B.Travel.
C.Culture.
D.Geography.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

16.Disability aids are vital to those who suffer problems with executing work with two hands.These are people who have been disabled due to some major sickness or some other problems.In order to help them carry on their work in the normal way,disability aids are manufactured.This helps them make their life a lot easier than what it would have been without these aids.The kind of disability aids that an individual might require depends on the person only.It is the problem that a person faces that decides the aids that he/she will use for carrying out their respective jobs.The following is the list of a few disability aids that come of significant use.
The first and foremost aid is the stocking aid,aiding the individuals suffering from the problem of bending down to reach the foot and wear their own socks.These stocking aids have a gutter that is made up of plastic material.These gutters are shaped in a certain way along with the attachment of cotton tapes in it.The sock is then put over the gutter.The foot is placed inside the gutter.The cotton tapes help in pulling the socks up the leg and subsequently the sock.In this manner,the sock is worn by a person who has problems wearing it by bending one's back and reaching the foot.
There are openers that help the people who have problems with their hands or wrists to open bottles of ketchup,jam and other such bottles and jars that necessitates the use of hands and fingers.
The third type of disability aids that comes to our minds are lifts.Now what are lifts?Lifts are certain machines that help in lifting people from specific areas,such as a bathtub or a set of stairs.These lifts are of varied types and come for numerous applications.It is for the individual to decide the type that he/she requires to use.
For people,who have problems in balancing their upper bodies in a stable manner,there is something known as grab rails.These grab rails are installed for those who have mobility problems in their upper bodies.These rails come in varieties of shapes,sizes and angles.These grab rails are available to home users as well,in their different variations.One can purchase and fix one to their homes according to one's specificities.These grab rails require the act of screwing and drilling in order to fix them to their appropriate place.The prices of these rails also vary according to the variation of their shapes and sizes.
A portable book holder is a much sought-after disability aid.It can be used by anybody for that matter,not just the disabled.These portable book holders are light-weight and can be easily moved about.These holders relieve the strains on one's hands,necks and shoulders that might occur due to the handling of a book.The holders are provided with extended legs that help in placing the reading material at suitable distance.
Thus with the help of these disability aids,the old and disabled people can make their lives much more convenient and comfortable that would otherwise have been a cumbersome and complex one.
Disability Aids
ThemeDisability aids are of great (71)importance/significance to those who are disabled as a result of some major sickness or other problems.
Different (72)
types/kinds  of aids
Stocking aidsHelp the individuals who have problems (73)bending down to reach their feet to put on socks by themselves.
OpenersAid the disabled to open the bottles of ketchup when they can't take (74)advantage of their hands or wrists.
LiftsAssist in lifting people from (75)specific areas with varied types of lifts,which are (76)applied numerously.
Grab railsHelp those having mobility problems in their upper bodies to keep their (77)balance in a stable manner.
Book holdersHelp to make the strains on one's hands,necks and shoulders
(78)less/relieved when people are reading.
(79)
Conclusion     
(80)Thanks/Owing to these disability aids,the life of the old and disabled will become more convenient and comfortable.

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

13.With its fascinating and artistic accompanying music,singing and costumes,the Peking Opera is China's national opera.Full of Chinese cultural facts,the opera presents the audience with an encyclopedia(百科全書)of Chinese culture,as well as developing stories,beautiful paintings,magnificent costumes,graceful gestures and martial arts.Since Peking Opera enjoys a higher reputation than other local operas,almost every province in China has more than one Peking Opera troupe.Opera is so popular among Chinese people,especially seniors,that even"Peking Opera Month"has been declared.
Peking Opera's main tune originated from Xipi and Erhuang in Anhui and Hubei and,over time,techniques from many other local operas were incorporated into Peking Opera.
It is believed that Peking Opera gradually came into being after 1790when the famous four Anhui opera troupes came to Beijing.Peking Opera experienced fast development during the period of Emperor Qianlong and the infamous Empress Cixi,eventually becoming more accessible to the common people.
In ancient times,Peking Opera was performed mostly on stage in the open air,teahouses or temple courtyards.Since the orchestra played loudly,the performers developed a sharp style of singing.The costumes were a gorgeous collection of sharply contrasting colors to stand out on the stage lighted only by oil lamps.Peking Opera is a harmonious combination of the Grand Opera,ballet and acrobatics (雜技),consisting of dance,dialogue and martial arts.
The Peking Opera band mainly consists of an orchestra and percussion(打擊樂器)band.The former frequently accompanies peaceful scenes while the latter provides the right atmosphere for battle scenes.The orchestral instruments include the Erhu,Huqin,Yueqin,Sheng,Pipa and other instruments.The band usually sits on the left side of the stage.
Title:(71)Peking Opera
(72)HistoryMore than 200 years long
 
(73)Origin
It came into being after 1790 when the four (74)Anhui Opera troupescame to Beijing.
Its main tune (75)based onon Xipi and Erhuang.
Its techniques adopted many other local operas.
 
Artistic
(76)features/characteristics
A harmonious combination of the Grand Opera,ballet and acrobatics,consisting of dance,dialogue and (77)martial arts
Mostly performed on stage in the open air,teahouses or temple courtyards
(78)A sharp styleof singing
The costumes looks luxury and brilliant.
The Peking Opera bandAn orchestraAtmosphere(79)instruments
Peaceful scenesErhu,Huqin,Yueqin,Sheng,Pipa and so on.
A percussionBattle scenesNot mentioned
InfluenceWell-received by Chinese people,especially (80)seniors

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

20.Last year,I was on a plane with my friend,waiting for it to take off.The pilot's voice was heard throughout the plane:"Sorry for the delay,ladies and gentlemen.Our engines don't work.We are going to jump-start them.Once we get them going,we'll get up in the air and see what happens."
That was all he said."See what happens?Shouldn't we have had a better plan than that?"At that point,I could only laugh nervously.One woman started crying:"Oh,no!We are going to crash!"There are sighs of desperation and anxiety,and we hadn't even taken off yet.
The pilot even seemed unhappy.He told us one engine was working double time,and his plan was to get up in the air and see what happens!Then we did.We got up in the air,and what happened?Nothing.We arrived in Norfolk,and no sooner had the wheels touched down than applause burst out as everyone on the airplane breathed a sigh of relief.
All too often,people stop achieving their goals just because they don't have a guaranteed result.But success will never be guaranteed.The best thing that you can do is to just get up in the air,and see what happens.
If your aim is to build a business,then get up in the air and see what happens!Don't give yourself all the reasons why you can't.Do not wait until you have everything you need.You never will.
If your goal is to start a friendship,say"Hello",get up in the air and see what happens!The results could be very rewarding.If your goal is to learn a new skill,get up in the air and see what happens!It might not be as difficult as you think.It could be fun!
21.How did the author feel when the pilot said the engines didn't work?B
A.Disappointed         
B.Anxious           
C.Curious          
D.Relieved
22.What can be inferred from the passage?D
A.The passengers began crying after the plane took off.
B.The engines often worked double time to get started.
C.The pilot tried to comfort the nervous passengers.
D.The passengers reached the destination safe and sound.
23.The underlined sentences in the last paragraph means"C".
A.think carefully before you make friends.
B.start to fly the plane to see what will happen.
C.make an effort even if the result is uncertain.
D.get up from the chair and greet somebody.
24.What can be the best title for the passage?A
A.We Will See What Happens
B.I Survived An Adventurous Flight
C.The Pilot Risked Our Lives
D.Making Plans Is Better Than Taking Chances.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

10.Mum pretended ________ what happened yesterday at school,but in fact,she has been told about every detail.( 。
A.not to hear aboutB.not to have heard about
C.not to be hearing aboutD.to not hear about

查看答案和解析>>

科目:高中英語 來源: 題型:填空題

17.My voluntary experience in the hospital made me more sensitive to the needs of the disabled.

查看答案和解析>>

科目:高中英語 來源: 題型:選擇題

14.When I dropped in,his family _______at the table,talking about something.( 。
A.satB.was sittingC.have satD.were sitting

查看答案和解析>>

科目:高中英語 來源: 題型:書面表達

5.兒童時代,我們常與同伴分享食物和玩具,隨著年齡的增長,我們可以與人分享的東西更多.請你以Sharing為題,寫一篇120詞左右的英語短文,要點如下:
1.與人分享的原因.
2.與人分享的內(nèi)容(學習上、生活上、情感方面).
3.與人分享的體會.
注意:1.詞數(shù):120詞左右,開頭已經(jīng)給出,不計入總詞數(shù).
2.可適當增加細節(jié),使行文連貫
3.參考詞匯:emotionally 情感上地
Sharing
We shared food and toys with our playmates when we were young.As we are growing older,we have more to share with others.

查看答案和解析>>

同步練習冊答案