BDDDC
1.B 推理題。根據(jù)本句we meet a stress,a stress that is greater than our physical resistance.Often,it is only a minor accident or chance infection(a disease caused by virus),but this time,it brings life to an end.說明這里的it指上的stress,它讓我們的生命結(jié)束。
2.D 細(xì)節(jié)題。根據(jù)文章第五段Most of the changes of aging take place deep inside the body.The lungs become less able to take in oxygen.Powerful muscles gradually lose their strength.The heart loses power and pumps less blood.Bones grow easier to break.說明ABC都是變老的變化,D項(xiàng)表述錯(cuò)誤,肺部不是不能吸入氧氣,是吸入氧氣變少。
3.D 推理題。根據(jù)文章第五段Most of the changes of aging take place deep inside the body.The lungs become less able to take in oxygen.Powerful muscles gradually lose their strength.The heart loses power and pumps less blood.Bones grow easier to break.這里很多變老的癥狀都表現(xiàn)在外在了,故D說法錯(cuò)誤。
4.D 細(xì)節(jié)題。根據(jù)文章倒數(shù)第四段a classic experiment nearly doubled the lifetime of rats,simply by cutting back the calories in their diet說明D正確。減少了飲食中的卡路里,與D項(xiàng)相符。
5.C 主旨大意題。本文講述了一個(gè)新的科學(xué)發(fā)現(xiàn),是對(duì)人類變老的研究,結(jié)果發(fā)現(xiàn)我們可以延長(zhǎng)我們的衰老過程,以延長(zhǎng)我們的生命。故C正確。
考點(diǎn):考查科普類短文閱讀
點(diǎn)評(píng)::本文講述了一個(gè)新的科學(xué)發(fā)現(xiàn),是對(duì)人類變老的研究,結(jié)果發(fā)現(xiàn)我們可以延長(zhǎng)我們的衰老過程,以延長(zhǎng)我們的生命?破疹惗涛拈喿x會(huì)遇見較多的生詞,在遇見生詞的時(shí)候要學(xué)會(huì)根據(jù)上下文語境進(jìn)行推理猜測(cè)其意思,減少語言的障礙,本文的關(guān)鍵在于細(xì)節(jié)的定位較為重要。