劍橋雅思9test2閱讀答案解析-Passage2
2023-07-09 09:00:51 來源:中國教育在線
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劍橋雅思9test2閱讀答案解析-Passage2
第14題答案是:F
對(duì)應(yīng)原文:F段:The parallax principle can be extended to measure the distances to the stars.
答案解析:F段的前半部分在說利用視角差測(cè)量法確定地球到太陽的距離。后半段又提到這種方法也可以用來測(cè)量地球到其他恒星的距離。即視角差原理的不同應(yīng)用的例子。由此確定答案。
第15題答案是:D
對(duì)應(yīng)原文:D段:but the ship’s pitching and rolling ruled out any attempt at making accurate observations.
答案解析:D段中間提到,船只的顛簸和搖晃使得進(jìn)行準(zhǔn)確測(cè)量的嘗試化為泡影。即對(duì)阻止凌日觀測(cè)的事件的描述,由此確定D為答案。
第16題答案是:G
對(duì)應(yīng)原文:G段:But such transits have paved the way for…detecting Earth-sized planets orbiting other stars.
答案解析:G段中提到,凌日為觀測(cè)類地行星圍繞其他恒星的運(yùn)轉(zhuǎn)鋪平了道路。即凌日觀察可能導(dǎo)致的未來發(fā)現(xiàn),由此確定G為答案。
第17題答案是:E
對(duì)應(yīng)原文:E段:the measurements were dogged by the‘black drop’effect…The second problem is that Venus exhibits a halo of light
答案解析:E段描述了兩個(gè)阻礙觀察凌日的想象,一個(gè)是黑點(diǎn)效應(yīng),一個(gè)是光暈。對(duì)應(yīng)題干中“早期天文工具所無法克服的困難”,由此確定答案。
第18題答案是:D
對(duì)應(yīng)原文:F段:John Franz Encke,Director of the Berlin Observatory,finally determined a value for the AU based on all these parallax measurements
答案解析:F段中提到,柏林天文臺(tái)的臺(tái)長John Franz Encke根據(jù)所有這些觀測(cè)記錄,最終確定了AU的值,由此確定答案為D。
第19題答案是:A
對(duì)應(yīng)原文:B段:Edmond Halley…Calculating this angle would allow astronomers to measure what was then the ultimate goal:the distance of the Earth from the sun
答案解析:整個(gè)B段都在描述哈雷的事跡。它意識(shí)到計(jì)算該角度可以讓天文學(xué)家測(cè)量地球到太陽的距離,由此確定答案為A。
第20題答案是:B
對(duì)應(yīng)原文:C段:Johannes Kepler,in the early 17th century,had shown that the distances of the planets from the Sun governed their orbital speeds
答案解析:這道題的關(guān)鍵點(diǎn)在于the time taken by a planet to go round the Sun與orbital speeds的同義替換。前者描述的是圍繞太陽的時(shí)間,后者指的是軌道速度,兩者可以相互對(duì)應(yīng),由此確定答案為B。
第21題答案是:C
對(duì)應(yīng)原文:D段:Le Gentil saw a wonderful transit—but the ship’s pitching and rolling ruled out any attempt at making accurate observations
答案解析:原文中提到,Le Gentil雖然看到了一次完美的凌日,但船的顛簸和搖晃卻使得無法進(jìn)行準(zhǔn)確的觀測(cè)。對(duì)應(yīng)題干中witnessed a Venus transit but was unable to make any calculations,由此確定答案為C。
第22題答案是:FALSE
對(duì)應(yīng)原文:C段:though he didn’t survive to see either
答案解析:C段的最后明確提到,雖然哈雷計(jì)算出兩次金星凌日的時(shí)間,但他卻沒有活到見證任何一次的時(shí)候。可見他從來都沒有觀測(cè)過這一現(xiàn)象,由此判斷答案為FALSE。
第23題答案是:FALSE
對(duì)應(yīng)原文:D段:Ironically after travelling nearly 50,000 kilometres,his view was clouded out at the last moment
答案解析:Le Gentil的第一次觀測(cè)被船只搖晃所破壞,第二次觀測(cè)在最后一刻被云層所遮擋。可見第二次觀測(cè)也并不成功。由此判斷答案為FALSE。
第24題答案是:TRUE
對(duì)應(yīng)原文:E段:When Venus begins to cross the Sun’s disc,it looks smeared not circular
答案解析:原文中提到,當(dāng)金星開始穿過太陽時(shí),它會(huì)變得不清楚,不完全是圓形。題干中的appear與look對(duì)應(yīng),distored與smeared對(duì)應(yīng),start與begin對(duì)應(yīng),剩下的基本是原詞。由此判斷答案為TRUE.
第25題答案是:NOT GIVEN
對(duì)應(yīng)原文:E段:this showed astronomers that Venus was surrounded by a thick layer of gases
答案解析:全文唯一提到金星大氣的就是E段,但絲毫未提及進(jìn)行大氣層是否有毒,由此判斷答案為NOT GIVEN。
第26題答案是:TRUE
對(duì)應(yīng)原文:F段:The parallax principle can be extended to measure the distances to the stars.
答案解析:原文中提到,視角差原理可以被延伸用于測(cè)量到其他恒星的距離。題干中allow與can對(duì)應(yīng),work out與measure對(duì)應(yīng),how far與distance對(duì)應(yīng)。即題干中所有信息點(diǎn)在原文中都能找到依據(jù),由此判斷答案為TRUE。
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