Childrenwhoareraisedinhouseholdswithdogsduringtheirfirs...
問題詳情:
Children who are raised in households with dogs during their first year of life may have a lower risk of asthma(哮喘)a few years later, a new study suggests.
In the study, the researchers looked at early exposure to dogs and farm animals and the rate of asthma among about 276,000 school-age children in Sweden. Among the school-age kids in the study, those who had been exposed to dogs during their first year of life were 13 percent less likely to have asthma at age 6.
The researchers said they don’t know for sure what exactly may explain the relationship between early exposure to animals and a reduced risk of asthma. "It might be due to a single factor, or more likely, a combination of several factors related to a dog ownership lifestyle or dog owners’ attitudes, such as kids’ exposure to household dirt and pet dust, time spent outdoors or being physically active," Fall told LiveScience. "As a parent in a dog-and-baby household, it is nearly impossible to keep everything clean, and maybe this is a good thing for your baby’s future health."
"My take-home message from this study is that parents at this point do not need to worry about keeping their dog when expecting a baby for fear of asthmatic disease," Fall said. "I do want to be clear that this recommendation is valid only for families without a child already having allergies. If they already have a furred-animal-allergic child, we do not recommend them to get a furred pet."
According to this hypothesis, being exposed to bacteria early in life is crucial for shaping a healthy immune system, and may play a role in modifying a person’s risk of developing asthma and allergies. "As to allergies and asthma, it is partially genetic, but studies like this do show us that your environment does play a key role in the development of your immune system, and the development of allergies and asthma," Parikh told LiveScience.
32.Which of the following will Fall probably agree with?
link between keeping pets and having asthma among kids isn’t clear.
nts should take their pet for physical examination regularly.
ma is still a common and serious disease for most children.
and pet dust in the family are bad for children’s health.
33.Which of the following children shouldn’t have a dog?
dren who have asthma.
dren who have allergies to fur.
dren who are lack of patience.
dren who dislike outdoor activities.
34.What can be inferred from the last paragraph?
bacteria are good for immune system.
allergies and asthma are totally genetic.
’s easy for people to develop asthma and allergies.
ronment can change your immune system greatly.
35.What’s the purpose of the passage?
tell readers the finding of a study on children.
persuade parents to buy a pet for their children.
clarify some misconceptions about keeping a pet.
explain why keeping a pet is beneficial to children.
【回答】
ABDA
知識點:閱讀理解
題型:閱讀理解
-
近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛洩漏事故.三*化*是一種重要的無機鹽工業產品,無*液體...
問題詳情:近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛洩漏事故.三*化*是一種重要的無機鹽工業產品,無*液體、密度1.574g/cm3(21℃),熔點﹣112℃,沸點75.5℃,易燃.遇水反應生成亞**(H3PO3)和*化*,與有機物接觸會著火.下列對三*化*的說法錯誤的是()A.三*化*中*元素的化合價為+...
-
在恆溫、體積為2L的密閉容器中進行反應:2A(g)⇌3B(g)+C(g),若反應物在前20sA物質由3mol降...
問題詳情:在恆溫、體積為2L的密閉容器中進行反應:2A(g)⇌3B(g)+C(g),若反應物在前20sA物質由3mol降為1.8mol,則前20s的平均反應速度為()A.v(B)=0.03mol/(L•s)B.v(B)=0.045mol/(L•s)C.v(C)=0.03mol/(L•s)D.v(C)=0.06mol/(L•s)【回答】考點:化學反應速率和化學計量數的關係.專題:化學反應速率專...
-
設複數(是虛數單位),則複數的虛部為( )A. B. C. ...
問題詳情:設複數(是虛數單位),則複數的虛部為( )A. B. C. D.【回答】B知識點:數系的擴充與複數的引入題型:選擇題...
-
反比例函式與直線相交於點點的橫座標為,則此反比例函式的解析式為( ) A. ...
問題詳情:反比例函式與直線相交於點點的橫座標為,則此反比例函式的解析式為( ) A. B. C. D.【回答】C;知識點:反比例函式題型:選擇題...
相關文章
- —Doyouthinkitwiseforparentstodoeverythingfortheirchildr...
- (2017·天津大學聯考)WhenyoudrivethroughtheRedwoodForestsinCalifo...
- WelookedthroughtheStylesarchive(檔案檔案)of2015,sortingthro...
- “Dutch”expressionsheardinAmericanEnglishwerefirstusedi...
- “Whodidthis?”askedMissGreen. Therewere30childreninthecl...
- OSLO(Reuters)-Sixoftheworld'seightbearspeciesareunderth...
- 閱讀理解。InJuniorHighSchoolinAmerica,kidsstudyEnglish,writ...
- 閱讀表達“Whodidthis?”askedMissGreen. Therewere30childrenin...
- 閱讀理解OneSunday,Markdecidedtogosailinginhisboatwithhisfri...
- Duringtheperiodoftheviruswhichisspreadingquickly,morest...