第6部分：完形填空 （第5l～65題，每題1分，共1 5分）
閱讀下面的短文，文中有15處空白，每處空白給出了4個(gè)選項(xiàng)，請(qǐng)根據(jù)短文的內(nèi)容從4個(gè)選項(xiàng)中選擇1個(gè)答案，涂在答題卡相應(yīng)的位置上。
Earth's Inner Core
Scientists have long struggled to understand what lies at the planet's center, Direct observation of its center is impossible，so researchers must_____（51）to other evidence．
In 1889，a German scientist detected a severe earthquake in Japan．Geophysicists concluded that shock waves_____（52）jolts（晃動(dòng)）from one side of Earth through the center to the other side．Then in 1936，Danish geophysicist Inge Lehmann studied the waves______（53） to determine that within Earth's core of molten（熔化了的）iron lies a solid inner core-but_____ （54）that core was made of eluded（難倒）her．Other geophysicists quickly determined that Lehmann's inner core was composed mostly_____（55）iron. Since then， Lehmann's discovery has_____（56）conventional Earth science．
But now scientists are challenging traditional theory with new and radical _____（57） For example，Earth's center could actually contain an"inner core within the inner core，claim Ishii and colleague Adam Dziewonski．
Analyzing hundreds of thousands of earthquake wave _____（58）,they maintain that the inner core has at its heart a tiny, even more solid sphere（球體） . This sphere''may be the oldest fossil____（59）from the formation of Earth，"says Dziewonski．
Dziewonski and Ishii speculate that shortly_____（60） Earth formed around 4.8billion years ago，a giant asteroid（小行星）smashed into the young planet and nearly melted it. But Earth's center didn't quite melt；it______（61）mass as the planet cooled. The core within a core may be the kernel（核心）that endured．"Its presence could change our basic ideas about the_____ （62）of the planet，"Dziewonski says idea is tame（溫和的）compared to the_____（63）theories of independent geophysicist J．Marvin Herndon．Earth's inner core is made not of iron，he claims but a_____（64）of nickel and silicon Hemdon has a truly revolutionary notion：Within the nickel silicide（硅化物）inner core is also an"inner"inner core-an 8 km-wide ball of the element uranium．Uranium is radioactive．Hemdon thinks the uranium releases heat energy as its atoms_____（65）fission-split and crash into another in a chain reaction. In other words,we may live on top of a gigantic, "natural"nuclear power plant.
51 A try B leave C turn D point
52 A create B receive C feel D overcome
53 A work B solution C job D patterns
54 A whether B what C why D how
55 A from B within C of D to
56 A followed B dominated C restored D opposed
57 A ideas B demands C phenomena D movements
58 A things B acts C methods D records
59 A taken B benefited C left D kept
60 A after B before C since D when
61 A expanded B modified C gained D melted
62 A size B origin C structure D shape
63 A radical B traditional C classical D conventional
64 A system B copy C model D compound
65 A charge B last C experience D show
答案:
51 C turn to other evidence：尋求其他證據(jù)。Tum to屬固定搭配。
52 A create jolts：造成震動(dòng)。其他幾個(gè)選項(xiàng)意思不符。
53 D wayes'patterns：波浪的形狀?？茖W(xué)家通過研究震波的形狀了解地球的情況。
54 B 此處的意思是地心是由什么構(gòu)成的難倒了她。這里應(yīng)使用what構(gòu)成名詞性從旬，作主語(yǔ)。
55 C compose of：由……組成。固定短語(yǔ)。
56 B dominate：占統(tǒng)治地位，支配。Lehamann的發(fā)現(xiàn)在傳統(tǒng)地球科學(xué)領(lǐng)域占統(tǒng)治地位。
57 A 此處的意思是：現(xiàn)在的科學(xué)家正用新的、激進(jìn)的觀點(diǎn)挑戰(zhàn)傳統(tǒng)的理論。本題只有填ideas才符合本句的意思。
58 D 此處填records，本句的意思是：通過分析數(shù)十萬(wàn)次地震波的記錄，他們認(rèn)為……。其他幾個(gè)選項(xiàng)與句意不符。
59 C left：留下來的。此處的意思是：這一球體可能是地球形成時(shí)留下來的最古老的化石。
60 A 依據(jù)上下文，應(yīng)用afte~句子意思才講得通。
61 C gain：獲取。gained mass as the planet cooled：在星球（這里指地球）變冷的過程中，它逐漸獲得了質(zhì)量。
62 B 本文主要談地球起源問題，故此處應(yīng)填ongm.
63 A 本句前面出現(xiàn)的一個(gè)詞是"tame"，與之對(duì)應(yīng)，應(yīng)該是"radical".
64 D nickel和silicon的混合物，compound：混合物。
65 C fission-split：裂變。經(jīng)歷裂變，用動(dòng)詞experience.
閱讀下面的短文，文中有15處空白，每處空白給出了4個(gè)選項(xiàng)，請(qǐng)根據(jù)短文的內(nèi)容從4個(gè)選項(xiàng)中選擇1個(gè)答案，涂在答題卡相應(yīng)的位置上。
Earth's Inner Core
Scientists have long struggled to understand what lies at the planet's center, Direct observation of its center is impossible，so researchers must_____（51）to other evidence．
In 1889，a German scientist detected a severe earthquake in Japan．Geophysicists concluded that shock waves_____（52）jolts（晃動(dòng)）from one side of Earth through the center to the other side．Then in 1936，Danish geophysicist Inge Lehmann studied the waves______（53） to determine that within Earth's core of molten（熔化了的）iron lies a solid inner core-but_____ （54）that core was made of eluded（難倒）her．Other geophysicists quickly determined that Lehmann's inner core was composed mostly_____（55）iron. Since then， Lehmann's discovery has_____（56）conventional Earth science．
But now scientists are challenging traditional theory with new and radical _____（57） For example，Earth's center could actually contain an"inner core within the inner core，claim Ishii and colleague Adam Dziewonski．
Analyzing hundreds of thousands of earthquake wave _____（58）,they maintain that the inner core has at its heart a tiny, even more solid sphere（球體） . This sphere''may be the oldest fossil____（59）from the formation of Earth，"says Dziewonski．
Dziewonski and Ishii speculate that shortly_____（60） Earth formed around 4.8billion years ago，a giant asteroid（小行星）smashed into the young planet and nearly melted it. But Earth's center didn't quite melt；it______（61）mass as the planet cooled. The core within a core may be the kernel（核心）that endured．"Its presence could change our basic ideas about the_____ （62）of the planet，"Dziewonski says idea is tame（溫和的）compared to the_____（63）theories of independent geophysicist J．Marvin Herndon．Earth's inner core is made not of iron，he claims but a_____（64）of nickel and silicon Hemdon has a truly revolutionary notion：Within the nickel silicide（硅化物）inner core is also an"inner"inner core-an 8 km-wide ball of the element uranium．Uranium is radioactive．Hemdon thinks the uranium releases heat energy as its atoms_____（65）fission-split and crash into another in a chain reaction. In other words,we may live on top of a gigantic, "natural"nuclear power plant.
51 A try B leave C turn D point
52 A create B receive C feel D overcome
53 A work B solution C job D patterns
54 A whether B what C why D how
55 A from B within C of D to
56 A followed B dominated C restored D opposed
57 A ideas B demands C phenomena D movements
58 A things B acts C methods D records
59 A taken B benefited C left D kept
60 A after B before C since D when
61 A expanded B modified C gained D melted
62 A size B origin C structure D shape
63 A radical B traditional C classical D conventional
64 A system B copy C model D compound
65 A charge B last C experience D show
答案:
51 C turn to other evidence：尋求其他證據(jù)。Tum to屬固定搭配。
52 A create jolts：造成震動(dòng)。其他幾個(gè)選項(xiàng)意思不符。
53 D wayes'patterns：波浪的形狀?？茖W(xué)家通過研究震波的形狀了解地球的情況。
54 B 此處的意思是地心是由什么構(gòu)成的難倒了她。這里應(yīng)使用what構(gòu)成名詞性從旬，作主語(yǔ)。
55 C compose of：由……組成。固定短語(yǔ)。
56 B dominate：占統(tǒng)治地位，支配。Lehamann的發(fā)現(xiàn)在傳統(tǒng)地球科學(xué)領(lǐng)域占統(tǒng)治地位。
57 A 此處的意思是：現(xiàn)在的科學(xué)家正用新的、激進(jìn)的觀點(diǎn)挑戰(zhàn)傳統(tǒng)的理論。本題只有填ideas才符合本句的意思。
58 D 此處填records，本句的意思是：通過分析數(shù)十萬(wàn)次地震波的記錄，他們認(rèn)為……。其他幾個(gè)選項(xiàng)與句意不符。
59 C left：留下來的。此處的意思是：這一球體可能是地球形成時(shí)留下來的最古老的化石。
60 A 依據(jù)上下文，應(yīng)用afte~句子意思才講得通。
61 C gain：獲取。gained mass as the planet cooled：在星球（這里指地球）變冷的過程中，它逐漸獲得了質(zhì)量。
62 B 本文主要談地球起源問題，故此處應(yīng)填ongm.
63 A 本句前面出現(xiàn)的一個(gè)詞是"tame"，與之對(duì)應(yīng)，應(yīng)該是"radical".
64 D nickel和silicon的混合物，compound：混合物。
65 C fission-split：裂變。經(jīng)歷裂變，用動(dòng)詞experience.