Dangers Await Babies with Altitude
Research has hinted that newborns in mountain communities are lighter than average. But it wasnt clear whether this is due to reduced oxygen levels at high altitudes or because their mothers are under-nourished many people who live at high altitudes are relatively poor compared with those living lower down.
Sure enough, Giussani found that the average birthweight of babies in La Paz was significantly lower than in Santa Cruz. This was true in both high and low-income families. Even babies born to poor families in Santa Cruz were heavier on average than babies born to wealthy families in lofty La Paz. We were very surprised by this result, says Giussani.
His team also found that high-altitude babies tended to have relatively larger heads compared with their bodies4. This is probably because a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body.5
词汇: altitude n.纬度,高度 stroke n.中风
1. grow into adults with a high risk of heart disease and strokes:长大成人后得心脏病和中风的风险很大
3. This may trigger the release or suppression of hormones that regulate growth of the unborn child:这可能会触发调节未出生儿成长的荷尔蒙的释放或抑制。这里的 release是名词。
5. a fetus starved of oxygen will send oxygenated blood to the brain in preference to the rest of the body:一个缺乏氧的胚胎会首先把充氧的血液输送到脑部,然后才送到身体的其他部位。 starved of是分词短语,修饰 fetus,in preference to表示的是第二位的选择,如: I chose to study English in preference to Russian in university.读大学时,我选了英语,而不是俄语。练习:
2. Giussanis team members are all British researchers and professors from Cambridge University. A Right B Wrong C Not mentioned
4. The weight of a newborn has to do with the supply of oxygen even when he was still in his mothers womb. A Right B Wrong C Not mentioned
6. High-altitude babies have longer but thinner limbs than average. A Right B Wrong C Not mentioned
国内英语资讯:Commentary: Chinas economy shows resilience amid global uncertainty
国际英语资讯:UN official monitoring cease-fire arrives in Yemeni rebel-held capital
Gucci推出迪士尼合作款包包,画风不忍直视
外国明星在中国电影里飙演技,谁演得最好?
国内英语资讯:Railways expect more passengers as Spring Festival holiday nears
体坛英语资讯:CBA Roundup: Liaoning edge Beijing for 16th straight CBA win
国内英语资讯:Top legislator stresses significance of NPC annual meeting
国内英语资讯:China moves to improve medical care for children
国际英语资讯:Pelosi invites Trump to deliver State of the Union address on Feb. 5
国内英语资讯:Chinas top medical research institution sets up respiratory medicine institute
国际英语资讯:Global expansion wanes with lower growth forecast: IMF
国内英语资讯:Beijing to implement regulations for protection of intangible cultural heritage
国内英语资讯:Premier Li seeks opinions, suggestions for draft report of government work
娱乐英语资讯:Hungarian-born American film producer Andy Vajna dies at 74 in Budapest
关于健身的11个错误观念 来看看你掉进了几个坑
娱乐英语资讯:Artists from Chinas Gansu province hold Chinese New Years concert in Riga
荷兰一家公司拟送孕妇去太空生孩子
国内英语资讯:Top political advisor stresses implementing policies on private sector development
好莱坞明星新组合:皮特与查理兹·塞隆在一起了!
体坛英语资讯:Irish striker Stokes close to returning to Tractor Sazi
体坛英语资讯:Muscle problem forces Nadal out of Brisbane tournament
体坛英语资讯:Neumayr quits Irans Esteghlal, joins Swiss Aarau
比伯婚礼或将在3月举办?
国际英语资讯:Migrants, refugees in Europe vulnerable to diseases: WHO
国内英语资讯:Central Chinese cities pose strong growth potential: report
国际英语资讯:Iran wraps up large-scale military drills aiming at offensive tactics
特朗普、德普提名金酸梅奖!共同角逐“最差演员”
国际英语资讯:Singaporean health minister apologizes for data leakage of 14,200 with HIV
国内英语资讯:Inner Mongolia to lift 140,000 people out of poverty
国内英语资讯:Palace Museum tells Chinese children stories about Twenty-Four Solar Terms
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |