分析 文章大意:主要描述了一氧化碳中毒是危害人的最大殺手之一,及一氧化碳中毒的現(xiàn)象和影響.
解答 56-59:ACDC
56題答案:A 細(xì)節(jié)題.根據(jù)文章第三段內(nèi)容Damage (損害) to the body can begin very quickly from large amounts (數(shù)量) of carbon monoxide.How quickly this can happen depend on how long a person is breathing the gas and how much gas he or she breathes in.可知身體的損傷可以很快地從大量的一氧化碳開始,這種情況的迅速發(fā)生取決于一個(gè)人呼吸氣體的時(shí)間和他呼吸的氣體量.答案為A
57題答案:C 細(xì)節(jié)題.根據(jù)文章第四段內(nèi)容Small amounts of the gas will cause a person's head to hurt可知少量的氣體會(huì)導(dǎo)致人的頭部受傷.答案為C
58題答案:D 細(xì)節(jié)題.根據(jù)文章第三段內(nèi)容Carbon monoxide makes it difficult for the blood to carry oxygen to body tissues.It does this by linking with the blood.When the gas links with the blood,the blood is no longer able to carry oxygen to the tissues that need it.Damage to the body can begin very quickly from large amounts of carbon monoxide.可知一氧化碳阻止人們需要的氧氣輸送,答案為D
59題答案:C 主旨題.根據(jù)文章最后一段內(nèi)容Doctors say carbon monoxide influences people differently.For example a small child will experience health problems or die much sooner than an adult.The general health of the person or his or her age can also be important.及大意可知主要描述的是一氧化碳的危害及其如何發(fā)生作用的,答案為C
點(diǎn)評(píng) 題目涉及多道細(xì)節(jié)理解題,做題時(shí)結(jié)合原文和題目有針對(duì) 性找出相關(guān)語(yǔ)句進(jìn)行仔細(xì)分析,結(jié)合選項(xiàng)選出正確答案.推理判斷也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確的答案.
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