第六部分:完型填空 (每題1分,共15分)
閱讀下面的短文,文中有15處空白,每處空白給出了4個選項,請根據(jù)短文的內容從4個選項中選擇1個答案,并涂在答題卡相應的位置上。
Dark Forces Dominate Universe
The Earth,moon,sun and all visible stars in the sky make up less than one percent of the universe.Almost all the rest is dark matter and dark energy, unknown _1_ that puzzle
astronomers.
Observations in recent years have changed the basic understanding of how the universe
evolved and have emphasized for astronomers how little is known _2_ the major forces and
substances that shaped our world.
Astronomers now know that luminous matter-stars.planets and hot gas – _3_ only about 0.4 percent of the universe.Non.1uminous components.such as black holes and intergalactic
gas,make up 3.6 percent.The rest is either dark matter, about 23 percent,or dark energy, about 73 percent.
Dark matter, sometimes called “cold dark matter,” has been known for some _4_. Only recently have researchers come to understand the pivotal role it _5_ in the formation of stars.planets and even people.
“We owe our very existence to dark matter,” said physicist Paul Steinhardt and a co-author of a review on dark matter which appeared not long _6_ in the journal Science.
Steinhardt said it is believed that following the Big Bang,the theoretical _7_ of the universe,dark matter caused particles to clump together.That set up the gravitation processes that led to the formation of stars and galaxies.Those stars,in turn,created the basic chemicals,such as carbon and iron.that were _8_ to the evolution of life.
“Dark matter dominated the formation of structure in the early universe.”Steinhardt said.“For the first few billion years dark matter contained _9_ of the mass of the universe.You can think of ordinary matter as a froth of an Ocean of dark matter.The dark matter clumps and the ordinary matter falls into it.That led to the _10_ of the stars and galaxies.”
Without dark matter,“there _11_ be virtually no structures in the universe.”
The nature of dark matter is _12_.It cannot be seen or detected _13_ .Astronomers know it is there because of its effect on celestial objects than can be seen and measured.
But the most dominating force Of _14_ in the universe is called dark energy.a(chǎn) recently proven power that astronomers say is causing the galaxies in the universe to separate at a faster and faster speed.
One scientist said it is clear now _15_ dark matter and dark energy engaged in a gravitational tug of war that,eventually,dark energy won.
詞匯 :
intergalactic/adj.銀河間的 gravitation/n.地心吸力,萬有引力
pivotal/adj.關鍵的 froth/n.泡沫
owe/v.把……歸功于 celestial/adj.天體的
clump/v.凝聚成塊
1. A)space B)movement C)forces D)speed
2. A)about B)in C)for D)witllin
3. A)waits for B)longs for C)accounts for D)looks for
4. A)schedule B)time C)duration D)period
5. A)displayed B)delayed C)relayed D)played
6. A)previously B)back C)before D)ago
7. A)beginning B)changing C)combining D)ending
8. A)universal B)additional C)fundamental D)structural
9. A)many B)most C)little D)few
10. A)detection B)formation C)revolution D)separation
11. A)would B)must C)shall D)should
12. A)unchecked B)unlocked C)unknown D)unmeasured
13. A)personally B)accurately C)formally D)directly
14. A)all B)total C)overall D)sum
15. A)when B)that C)how D)what
答案及解析
第一部分:詞匯選擇(第1-15題,每題1分,共15分)
下面共有15句子,每個句子均有一個詞或短語劃有底橫線,請從每個句子后面所給的四個選項中選擇一個與劃線部分意義最相近的詞或短語。答案一律涂在答題卡相應的位置上。
1 B。劃線詞和四個被選項這5個動詞都是C級應該掌握的常見詞匯。其中除A以外,其余的被選項都可以跟動名詞結構:quit doing.. = cease doing../停止..., continue doing../繼續(xù).., keep doing../一直…。該句的含義是“我們得要求他們停止說法以便所有在場的人都能清楚地聽見我們的聲音?!?BR> 2 A. 劃線詞和四個被選項這5個名詞都是較為常見詞匯。其中,scene是“現(xiàn)場, 場面, 情景, 景色”;view是“景色, 風景, 觀點, 見解”;event是“事件”, landscape“風景, 山水畫, 地形”。從句意(克朗代克河地區(qū)是人們迄今為止所知道的淘金熱(發(fā)生地)之一)來看scene的含義是“地點”,所以答案是A。
3 A。根據(jù)搭配—“...媒體報道”判斷A(大量的,廣大的,廣闊的)合適。而借助mass 的含義(n.塊, 大多數(shù), 質量, 群眾, 大量adj.群眾的, 大規(guī)模的, 集中的)也可猜測出massive的含義與“大量的”有關,這樣也能判斷答案。Negative adj.否定的, 消極的, 負的; expensive adj.昂貴的; active adj.積極的, 能起作用的。該句的含義是“她一直是許多媒體報道的對象?!?BR> 4 B. 根據(jù)搭配--“...的可能性”判斷B(調查,研究)最合適。Reject vt.拒絕, 抵制; propose
vt.計劃, 建議, 向...提議; postpone vt.推遲, 使延期;該句的含義是“會議研究了進行更加緊密的貿易聯(lián)系的可能性?!?BR> 5 B.根據(jù)and的使用特點:前后結構對稱,詞義色彩一致,因此判斷B((平靜的和)安靜的)是答案。Rough adj.粗糙的, 粗略的, 大致的, 粗暴的,洶涌澎湃的。該句的含義是“大海安靜而又平靜”。
6 B. 句子中出現(xiàn)了“In a bullfight(在斗牛中)..顏色”這樣的結構和詞語,因此猜測劃線詞所在的結構含義可能是“(刺激)牛”。因此判斷B(使..興奮)是答案。Confuse vt.搞亂, 使糊涂;scare v.驚嚇; satisfy vt.滿足, 使?jié)M意;該句的含義是“在斗牛比賽中,讓牛興奮的是物體的運動,而不是物體的顏色?!?BR> 7 D. comprise v.包含, 由...組成; 該詞和D(involve vt.包括) 是近義詞。absorb vt.吸收, 吸引; concern vt.涉及, 關系到n.(利害)關系, 關心; exclude vt. 把...排除在外; 該句含義是“這個委員會是由5個人組成?!?BR> 8 A.a(chǎn)ssemble vt.集合, 聚集, 裝配vi.集合;該詞和A( collect v.收集, 聚集)是近義詞。fix vt.使固定, 裝置, 修理;assert v.斷言, 聲稱;assist v.援助, 幫助;該句含義是“所有的人都在瑪麗的房子里集合?!?BR> 9. B. 分析:根據(jù)句意(我們主要從書本上獲得知識)判斷B(獲得)是答案。Deprive vt.剝奪, 使喪失; descend vi.下來, 下降; trace n.痕跡, 蹤跡, 微量vt.描繪,追蹤
10.C.分析:該句含義是“我們都認為他是一個個性很活躍的人。”dynamic adj.動力的,動態(tài)的,生氣勃勃的; active adj.積極的,現(xiàn)行的, 活動的, 活躍的;doubtful adj.可疑的, 不確的; easy adj.容易的, 舒適的, 寬裕的, 從容的adv.不費力的, 輕松