【正文】 44． Why was Brian wearing so many clothes for his travel? A． Because they were the uniforms for air173。t for everyone. But if you have very little money， can be flexible about your travel plans， and don39。courier， but it is quick. Every year about 80,000 people worldwide travel as aircouriers. The number of tickets for courier travel is growing by about 10 percent a year. However, air173。trip ticket to Paris. Air173。on bag is fine. Have a good trip.” “Thanks.” Is Brian a criminal? Not at all. He is an air173。on bag.” “That39。trip ticket and a small package. “Give this package to Jean Paul at the airport in Paris. He will have a sign with your name on it. I think you can find him easily， ” Tony said ， “You don39。 C Brian arrived at the San Francisco airport two hours before the flight to Paris. He was wearing three shirts, a jacket， two pairs of socks， a pair of shorts, and two pairs of jeans. He was carrying one small backpack， which was very full, but he didn39。 42． What does the underlined word “This” in the 3rd paragraph refer to? A． A satellite. B． A little rocket. C． A satellite seems to stay in the same place in the sky. D． The satellite puts the rockets in the right position. 答案： C 上一句話的意思是：有時(shí)候我們看到天空中的衛(wèi)星好像呆在同一個(gè)地方，這是因?yàn)??? ，故本題答案為 C。 41． What39。 B (2021據(jù)全文大意，又據(jù)文章的性質(zhì)，可判定 D為最佳選項(xiàng)。作者通過一段幻想的災(zāi)難和一段地球歷史上出現(xiàn)過的恐龍絕跡的事實(shí)以及科學(xué)家們分析恐龍絕跡的原因，來警示人類未來可能發(fā)生的災(zāi)難。 38． In writing the passage, the author intends to________. A． give an accurate description of the possible disaster in the future B． prove that humans will sooner or later be destroyed C． tell the historical development of the earth D． warn of a possible disaster in the future 答案： D 觀點(diǎn)態(tài)度題。第三段中，作者描述假想的人類災(zāi)難 ?? 最后一段提到生活在地球上的恐龍?jiān)?65 million years ago 突然消失 (即滅絕 )，許多 科學(xué)家相信地球曾受到過外空星體碎片的襲擊，故而導(dǎo)致恐龍絕種。題干要求找出不對(duì)的選項(xiàng)。文中 “No more than 10 million people have survived” 一句意為 “ 只有一千萬人幸存下來 ” ，而 C項(xiàng)說全人類都滅絕了。s description of the disaster in 2094? A． The whole world bees extremely cold. B． All the coastal cities in Africa are destroyed. C． The whole mankind bees extinct. D． The visit of the et results in wars. 答案： C 辨別正誤題。t escape for long. Tons of broken pieces are thrown into the atmosphere by the explosion. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have survived. Could it really happen? It has already happened more than once in the history of the earth. The dinosaur were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a space fragment. The dinosaurs couldn39。 A In July 1994 Jupiter, the largest pla in our solar system, was struck by 21 pieces of a et(彗星 ). When the fragments(碎片 )landed in the southern part of the grand pla, the explosions were watched by scientists here on earth. But what if our own pla was hit by a et? The year is 2094. It had been announced that a et is heading towards the earth. Most of it will miss our pla, but two fragments will probably hit the southern part of the earth. The news has caused panic. On 17 July, a fragment four kilometers wide enters the Earth39。 35． B． perhaps C． supposed D． although 答案： D although 引導(dǎo)讓步狀語(yǔ)從句，表示 “ 盡管 ?? ，但是 ?? 。 33． B． past C． ago D． before 答案： B “in ages past” 表示 “ 在過去的歲月中 ” 。 ” 32． B． if C． how D． that 答案： D 此句意思是 “ 報(bào)告說由于火星的軸在過去的歲月中更傾斜于太陽(yáng)，那時(shí)火星的天氣，可能比現(xiàn)在暖和 ” 。ing 形式，故可排除 A 和 C 兩個(gè)選項(xiàng)；本空為have to 結(jié)構(gòu)，意思是 “ 必須；不得不 ” ，所以其后接動(dòng)詞原形。此句意思是 “ 任何表面上的水將以冰的形式存在。re 答案： A 此句用的是 “there be” 結(jié)構(gòu)，其后面的名詞 water(即主語(yǔ) )為不可數(shù)名詞，故謂語(yǔ)動(dòng)詞 be用單數(shù)形式。re C． here39。 28． 39。此空與第 24空一樣， 為 “with復(fù)合結(jié)構(gòu) ” 作狀語(yǔ)。 25． B． mountains C． rivers D． seas 答案： A 此句意思是 “ 沙暴 (dust storms)在廣袤的沙漠 (deserts)上旋轉(zhuǎn) ” 。 23． B． quiet C． lifeless D． dead 答案： C 此句的意思是 “ 剛開始的時(shí)候，科學(xué)家認(rèn)為這顆紅色的行星象月球一樣沒有生命 (lifeless)” 。 21． few B． many C． thousand D． thousands 答案： D thousands of 用復(fù)數(shù)形式表示不確定的數(shù)字，此處意思是 “ 數(shù)以千計(jì)的 ” ，后接復(fù)數(shù)名詞； a few of 后接 “ 限定詞＋復(fù)數(shù)名詞 ” ，意思是 “ 某 (固定 )范圍內(nèi)的一些 ” ；many of 后接 “ 限定詞＋復(fù)數(shù)名詞 ” ，意思是 “ 某 (固定范圍 )內(nèi)的許多 ” 。 19． B． openings C． occasions D． possibility 答案： A 本句的意思是 “ 由于水的發(fā)現(xiàn)，在火星上面找到某種生命形式的機(jī)會(huì)就變得更加明朗了 ” 。表示 “ 某人被期待做某事 ” 。 17． B． hoped C． required D． sent 答案： A expect somebody to do something 表示 “ 期待某人做某 事 ” 。 to be 為不定式的省略式，其后面省略了 dry。 Mars is not, it seems, the dry old pla we once believed__16__. Astronauts who are__17__to go there in the next decade may find plenty__18__water to slake(消除 )their with water present the__19__of finding some sort of life on Mars are__20__brighter. This is the view of forty geologists who have been analyzing__21__of pictures and other scientific__22__obtained by robot explorer