Many people like the feeling of the gentle wind in spring. Many like to see the falling leaves dancing in the wind in autumn. But sometimes, when the wind becomes a storm, it can be very destructive(具有破壞性的).
A series of such storms struck the US last month and caused very serious damage and human pain.
Every year, major storms cause many problems around the world. There is nothing people can do to stop these powerful forces of nature. But new techniques are helping scientists to predict(預(yù)測(cè)) how, when, and where big storms will happen. The more exact scientists’ warnings are, the better people can prepare for the storms.
Predictions are improving. “We’re gotten better over the years, especially the last few years,” says Phil Klotzbach, a scientist at an American university. How is a storm formed? Even if scientists know where a storm will happen, winds can suddenly change, carrying the storm to a new direction. “For a hurricane to happen, conditions have to be just right, ” Klotzbach says.
First, the ocean water needs to be warm enough so that it evaporates and rises into the air. As it rises, the vapor(水蒸氣)cools and turns back into liquid. This process gives off heat. This produces energy like an engine that causes winds to increase. It drives the formation(形成) of a hurricane.
If wind speeds reach 40 miles per hour, the system is called a “tropical storm”(熱帶風(fēng)暴), and it gets a name. At 75 miles per hour, it becomes a hurricane.
Hurricanes that hit the US start when a thunderstorm forms off the coast of Africa. Storms also develop over tropical waters in other parts of the world.
On average, 60 or 70 storms form off Africa every year. About 10 of them get names. There are usually about six hurricanes. Two tend to be very big, with winds of 115 miles per hour or higher.
The hurricane season lasts from June to November. Ninety percent of all hurricanes hit in August, September, and October.
49. 1.According to the passage, hurricanes usually ____.
A. form off the coast of Africa and America
B. travel at 40 miles per hour and get its name
C. cause sea winds to rise and blow over the sea
D. hit parts of the world in summer and autumn
50. 2.The underlined word “evaporates” probably means “____”.
A. begins to move B. gets lost C. becomes hot D. changes into gas
51. 3.Which of the following about the information of a hurricane is the correct order?
a. The ocean water evaporates and goes into the air.
b. Heat creates energy and causes winds to increase.
c. The vapor cools.
d. The ocean water is warm enough.
e. The vapor changes back into liquid.
f. This course gives out heat.
A.a, d, e, b, c, f B.a, b, c, f, d, e C.d, a, c, e, f, b D.d, a, b, c, e, f
52. 4.According to the passage, the speed of the biggest two hurricanes reaches ____.
A.115 miles per hour B.110 miles per hour
C.75 miles per hour D.95 miles per hour
1.D
2.D
3.C
4.A
【解析】略
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I was a single parent with my son. Two jobs allowed me an apartment, food, and child care payment. Little money was left over for clothes, 1 I kept us nicely dressed. Loving 2 , I bought for myself beautiful reds and oranges, and greens and pinks. And quite often I wore them in mixtures, which, against the usually correct way, brought 3 to the eyes of people who could not avoid 4 me.
I went to my son’s 5 frequently. And he would always come and greet me and my colorful clothes. 6 , when my son was six, he told me 7 that he had to talk to me.
“Mother, do you have any sweaters that 8 ?”
I said, “No, I don’t.”
“Oh, I wish you did. 9 you could wear them to my school.” Then he continued, “Mother, could you please 10 come to school when they call you?” Then I realized that my dress was a(n) 11 to him.
I learned to be a little more careful to 12 causing him displeasure. As he grew older and more confident, I gradually 13 to my particular way of dressing. I was happier when I chose and created my own 14 .
I have lived in this body all my life and know it much 15 than any fashion designer. I think I know what looks good 16 me.
17 is important to mention because many people are imprisoned by powerful principles on the 18 way of dressing. Those decisions made by 19 are not truly meant to make your life better. Seek the fashion which truly suits you. You will always be in fashion if you are 20 to yourself.
1. A. but B. and C. or D. because
2. A. shapes B. styles C. colors D. tastes
3. A. envy B. appreciation C. disappointment D. surprise
4. A. recognizing B. admiring C. accepting D. noticing
5. A. office B. home C. school D. lab
6. A. However B. Meanwhile C. Otherwise D. Therefore
7. A. proudly B. jokingly C. seriously D. curiously
8. A. cost B. work C. fit D. match
9. A. Even if B. As if C. So that D. In case
10. A. only B. still C. once D. ever
11. A. wonder B. surprise C. embarrassment D. honor
12. A. practice B. remember C. mind D. avoid
13. A. turned B. returned C. escaped D. took
13. A. fashion B. sweater C. color D. tradition
15. A. better B. worse C. more D. less
16. A. in B. on C. with D. of
17. A. Dress B. Money C. Principles D. Designers
18. A. experienced B. proper C. formal D. simple
19. A. me B. yourself C. others D. ones
20. A. true B. serious C. practical D. responsible
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A. forgive B. persuade C. forget D. excuse
A. vital B. obvious C. visual D. vivid
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A. in return B. in turn C. by return D. by turn
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A. reason B. word C. philosophy D. sentence
A. change B. hurt C. upset D. disturb
A. news B. letter C. message D. information
A. explain B. express C. produce D. present
A. in B. with C. about D. at
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C.don't want others to know they are rich
D.want to be happy
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A.live outside New York City B.live in New York City
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Thirty- two people watched Kitty Genovese being killed right below their windows. She was their neighbor. Yet none of the 32 helped her. Not one even called the police. Was this in gunman cruelty? Was it lack of feeling about one’s fellowman?
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The researchers found that a lot depends on how many people are around. They had college students in to be “tested.”Some came alone. Some came with one or two others. And some came in large groups. The researchers started them off on the “tests.”Then they went into the next room. A curtain divided the “testing room”and the room into which they went. Soon the students heard a scream, the noise of bookshelves falling and a cry for help. All of this had been prerecorded on a tape recorder.
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