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While scientists are worried that humans are causing higher temperatures on the Earth, a Maryland man, Ace, thinks we can save the world by spraying(喷射)huge amounts of water into the air.
Ace told the McClatchy News Service that at least 1,000 places should be chosen to spray water. The water would be sprayed between 20 and 200 feet into the air. Thousands of tons of seawater would be sprayed for years at a time.
The 1,000 sites would be picked after more studies. They would be mostly in the Northern Hemisphere(北半球). Ace says he would avoid tropical(热带的)areas of the globe. He says water turns to rain too quickly in these areas for his plan to work.
The water would be changed into vapor. That process requires heat. The water vapor would rise above the Earth. The water vapor would form clouds. The clouds would help in several ways. They would cool the Earth by reflecting sunlight. They would later turn into rains. The rains would provide another way of cooling the Earth.
Ace’s plan has gotten some support from a limited scientific study. Kenneth Caldeira is a climate scientist. He works at the Carnegie Institution’s Department of Global Ecology at Stanford University in California. Caldeira tested some of the Ace’s figures on a computer program. The computer model is used by top scientists to study global climate change. The model showed that the plan might work.
“More tests are planned in 2009. Ideas like Ace’s should be considered carefully and with an open mind,” Calderira said. “Every brilliant(卓越的)invention in the history of technology looked a little bit mad when first put forward.”
65.What’s the purpose of Ace’s plan?
A. To reduce air pollution.
B. To make summer cooler.
C. To offer dry areas more rain.
D. To solve the problem of global warming.
66.According to Ace’s plan,___________.
A. planes would be used to spray water.
B. it would be best to spray water on rainy days.
C. seawater would be sprayed high into the sky
D.1,000 sites in the Southern Hemisphere would be chosen.
67.Why wouldn’t Ace spray water in tropical areas?
A. Water is changed into vapor too quickly.
B. Water turns to rain too quickly.
C. It is hard for vapor to form clouds.
D. It is bad for local plants to have too much rain.
68. It seems that Caldeira ____________.
A. takes Ace’s plan seriously
B. thinks Ace’s idea too crazy
C. doesn’t believe the computer’s result
D. agrees to carry out Ace’s plan right away
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It was not yet eleven o’clock when a boat crossed the river with a single passenger who had obtained his transportation at that unusual hour by promising an extra fare.
While the youth stood on the landing-place searching in his pockets for money, the ferryman lifted a lantern, by the aid of which, together with the newly risen moon, he took a very accurate survey of the stranger’s figure. He was a young man of barely eighteen years, evidently country bred(长大的), and now, as it seemed, on his first visit to town. He was wearing a rough gray coat, which was in good shape, but which had seen many winters before this one. The garments under his coat were well constructed of leather, and fitted tightly to a pair of muscular legs; his stockings of blue yarn must have been the work of a mother or sister, and on his head was a three-cornered hat, which in its better days had sheltered the grayer head of the lad’s father. In his left hand was a walking stick, and his equipment was completed by a leather bag not so abundantly stocked as to inconvenience the strong shoulders on which it hung. Brown, curly hair, well-shaped-features, bright, cheerful eyes were nature’s gifts, and worth all that art could have done for his adornment(装饰).
The youth, whose name was Robin, paid the boatman, and then walked forward into the town with a light step, as if he had not already traveled more than thirty miles that day. As he walked, he surveyed his surroundings as eagerly as if he were entering London or Madrid, instead of the little metropolis(都市)of a New England colony.
What time of the year was it in this story?
A. Winter. B. Fall. C. Summer. D. Spring.
The boatman was willing to take Robin across the river because ________.
A. he was going to row across the river anyway
B. he saw that Robin was young and rich
C. he would give extra money
D. he felt sorry for him because Robin looked poor
The stockings that Robin wore were obviously _________.
A. well worn B. very expensive C. handmade D. much too big
From the text we can learn that Robin had traveled __________.
A. from London B. from Madrid
C. from a nearby city D. over thirty miles
At what time of day did Robin cross the river?
A. Night. B. Late afternoon C. Midday. D. Morning.
查看习题详情和答案>>第二节:完形填空(共20小题;每小题1分,满分20分)
阅读下面短文,掌握其大意,然后从36~55各题所给的四个选项(A、B、c和D)中选出最佳选项,并在答题卡上将该项涂黑。
I moved to this small town at the age of twelve.After getting 36 in our new house and starting school,I began to explore the 37 area.I was exploring the pond when I discovered the fish.
There were two of them,one about a foot long, 38 the other just a little smaller,and they were the most beautiful fish I had 39 seen.They had blue and yellow and red 40 from head to tail.Before they saw me,they swam 41 over the sand just under the front edge of the large cedar(杉)tree which had long before fallen 42 the pond.
I went back the next day after school 43 with about six feet of fishing line and a hook borrowed from our elderly neighbor.and half a dozen worms I had 44 out of the garden.We did not own any fishing tool,and 45 a city kid,my fishing experience, had 46 week long visits to my relatives.
I took a shortcut 47 some fallen cedars on my way to the pond.As I was climbing over one tree and ducking under another,I _48 my footing,and my soup can of worms went flying into the air.My 49 was only increased when I noticed that my worms had disappeared.
I went to the pond,looked down again,and there they were.I made a few 50 to catch them by hand,but I soon realized it was never going to 51 .I had been trying to catch them for quite a while without actually even 52 either one.After each attempt,they 53 suddenly go around the pool,then settle back under the log.They could really go 54 ,but they were just too fast to be caught.I was wet and 55 and it was time to go home.
36.A.seated B.settled C.separated D.served
37.A.deserted B.crowded C.surrounding D.distant
38.A.but B.and C.thus D.so
39.A.hardly B.seldom C.never D.ever
40.A.dots B.signs C.signals D.symbols
41.A.nervously B.hopelessly C.effortlessly D.difficultly
42.A.through B.across C.past D.by
43.A.armed B.matched C.handled D.accompanied
44.A.put B.dug C.pulled D.searched
45.A.for B.with C.as D.despite
46.A.consisted of B.compared with C.made up D.taken up
47.A.beyond B.against C.between D.through
48.A.lost B.sank C.sent D. threw
49.A.doubt B.disappointment C.courage D. strength
50.A.steps B.activities C.attempts D. movement
51.A.work B.complete C.cover D. catch
52.A.noticing B.touching C.holding D. feeling
53.A.should B.might C.would D. could
54.A.somewhere B.anywhere C.nowhere D. everywhere
55.A.excited B.frightened C.worried D. discouraged
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32. ---What can I do for you ?
---_______you see Mr. Black, give him my regards.
|
A.Had |
B.Shall |
C.Would |
D.Should |
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