文章來源:韶關(guān)世紀(jì)文都 已幫助:1272人
In a field where scientists have spent decades focused on genetics and the buildup of damaged protein fragments called beta-amyloid as causes of the disease,now many experts agree that air pollution plays a major role. For the most common form of Alzheimer's,known as late-onset disease,researchers now estimate that at least 40 and as much as 65 percent of the risk involves nongenetic influences such as lifestyle and harmful environmental exposure.
【思考題】
Traditional views on Alzheimer's agreed that ( )
A.it could be mainly attributed to genetics
B.it had a close relation to lifestyle choices
C.it was triggered by nongenetic factors
D.it was related to the harmful air pollution
【詞匯突破】
buildup 沉積
protein fragments 蛋白質(zhì)片段
beta-amyloid β-淀粉樣蛋白
Alzheimer's 阿爾茨海默氏癥
late-onset disease 晚發(fā)性亞型
亞型=類型=form
nongenetic 非基因的
involve 涉及到
【句子解析】
第1句:
In a field where scientists have spent decades focused on genetics and the buildup of damaged protein fragments called beta-amyloid as causes of the disease (傳統(tǒng)的觀點),now many experts agree that air pollution plays a major role.
在這一領(lǐng)域,科學(xué)家數(shù)十年來一直專注于遺傳學(xué),并將被稱為β-淀粉樣蛋白的受損蛋白質(zhì)片段的沉淀視作疾病成因,現(xiàn)在許多專家都同意空氣污染起著重要作用。
注意:這里的疾病disease 就包括后文的Alzheimer's 這就是閱讀的相關(guān)性原則。
第2句:
For the most common form of Alzheimer's, known as late-onset disease,researchers now(現(xiàn)在的觀點)estimate that at least 40 and as much as 65 percent of the risk involves nongenetic influences such as lifestyle and harmful environmental exposure.
研究人員現(xiàn)在估計,對于常見的阿爾茨海默氏癥亞型,即晚發(fā)性亞型,風(fēng)險因素中至少40%到65%涉及非遺傳影響,如生活方式和有害的環(huán)境暴露。
【思考題解析】
Traditional views on Alzheimer's agreed that ( )
A.it could be mainly attributed to genetics 它可能主要歸因基因
A項正確
B.it had a close relation to lifestyle choices 它與生活方式的選擇密切相關(guān)
B項錯誤
C.it was triggered by nongenetic factors 它是由非基因因素引起的
C項錯誤
D.it was proven to be related to pollution 它被證明與污染有關(guān)
D項錯誤
【文章背景】
The Role of Air Pollution
空氣污染的角色
背景:談到空氣污染之害,霧霾和有毒粉塵會損傷心肺功能已是共識。但空氣污染與老年癡呆的關(guān)系直到最近幾年才開始真正獲得學(xué)者們的關(guān)注。2018年,一項針對墨西哥城(1992年被聯(lián)合國宣布為世界上污染極嚴(yán)重的城市)居民的研究發(fā)現(xiàn),年紀(jì)僅在30到40歲的中年居民腦中已出現(xiàn)斑塊病變,而從年紀(jì)上來說,通常要幾十年后才能察覺到任何疾病的癥狀。不僅是在墨西哥城,許多學(xué)者針對不同地域人群的眾多研究證實了同一個結(jié)論,在特定的空氣污染物中的暴露和一些神經(jīng)退行性疾病相關(guān)性極強,其中就包括阿爾茨海默氏癥。有毒的空氣微??山?jīng)由肺、鼻進入大腦,空氣污染物的暴露史與記憶喪失等癡呆癥狀直接相關(guān)!
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