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Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks’ time. Ten inches of rain may be enough for many plants to survive （存活）if the rain is spread throughout the year, If it falls, within one or two months and the rest of the year is dry, those plants may die and a desert may form.
Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes （沙丘） are formed as winds move the sand across the desert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.
There is, however, much more to a desert than sand. In the deserts of the southwestern United States, cliffs （悬崖） and deep valleys were formed from thick mud that once lay beneath a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing – very, very slowly – as these forces of nature continue to work on the rock.
Most deserts have a surprising variety of life. There are plants, animals and insects that have adapted to life in the desert. During the heat of the day, a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.
60. Many plants may survive in deserts when__________________.
A. the rain is spread out in a year B. the rain falls only in a few weeks
C. there is little rain in a year D. it is dry all the year round
61. Sand dunes are formed when___________________.
A. sand piles up gradually B. there is plenty of rain in a year
C. the sea has dried up over the years D. pieces of rock get smaller
62. The underlined sentence in the third paragraph probably means that in a desert there is____________.
A. too much sand B. more sand than before
C. nothing except sand D. something else besides sand
63 It can be learned from the text that in a desert ____________.
A. there is no rainfall throughout the year B. life exists in rough conditions
C. all sand dunes are a few feet high D. rocks are worn away only by wind and heat
查看习题详情和答案>>On August 26, 1999, New York City experienced a torrential downpour. The rain caused the streets to ____ and the subway system almost came to a stop.
Unfortunately, this happened during the morning rush hour. Many people who were going to work were ____ to go home. Some battled to ____ a taxi or to get on a bus. Still others faced the ____ bravely, walking miles to get to work.
I ____ to be one of the people on the way to work that morning. I went from subway line to subway line only to find that most ____ had stopped. After making my way ____ crowds of people, I finally found a subway line that was ____. Unfortunately, there were so many people waiting to ____ the subway that I could not even get down the stairs to the ____. So I took the train going in the opposite direction, and then switch back to the downtown train. Finally, after what seemed like a forever, the train ____ my stop. Then I had to walk several blocks in the increasingly heavy rain. When I finally got to my office, I was ____ through, exhausted and ____.
My co-workers and I spent most of the day drying off. When it was 5:00 pm，I was ready to go home. I was about to turn off my computer ____ I received an email from Garth, my Director:
I would like to thank all of you who made the effort and __ __ reported to work. It is always reassuring(令人欣慰), at times like these, when employees so clearly show their ____ to their jobs. Thank you.
Garth’s email was short, but I learned more from that ____ message than I ever did from a textbook. The email taught me that a few words of ____ can make a big difference. The rainstorm and the traffic ____ had made me tired and upset. But Garth’s words immediately____ me and put a smile back on my face.
1.A. break B. flood C. sink D. crash
2.A. forced B. refused C. adjusted D. gathered
3.A. order B. pay C. call D. search
4.A. climate B. scenery C. storm D. burden
5.A. used B. promised C. deserved D. happened
6.A. practice B. routine C. process D. service
7.A. to B. through C. over D. for
8.A. operating B. cycling C. turning D. rushing
9.A. check B. carry C. find D. board
10.A. street B. ground C. floor D. platform
11.A. paused B. crossed C. reached D. parked
12.A. wet B. weak C. sick D. hurt
13.A. ashamed B. discouraged C. surprised D. puzzled
14.A. while B. when C. where D. after
15.A. hardly B. casually C. absolutely D. eventually
16.A. devotion B. donation C. connection D. reaction
17.A. accurate B. urgent C. brief D. humorous
18.A. promise B. appreciation C. advice D. guidance
19.A. troubles B. signals C. rules D. signs
20.A. corrected B. supported C. amazed D. refreshed
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Sir,
Just over six months ago, I saw an advertisement in the Morning Mail for a set of the complete works of William Shakespeare. Your company, Cosmo books Ltd., offered this set (eight books of plays and two books of poetry) at what was claimed to be a ‘remarkable’ price: fifteen pounds and fifty pence, including postage and packing. I had wanted a set of Shakespeare’s plays and poems for some time, and these books, in red imitation leather, looked particularly attractive; so I sent for them.
Two weeks later, the books arrived, together with a set of the complete works of Charles Dickens which I had not ordered. So I returned the Dickens books to you, with a cheque for fifteen pounds and fifty pence for the works of Shakespeare. Two more weeks passed. Then there arrived on my door step a second set of the works of Shakespeare, the same set of novels by Dickens and a six book set of the plays of Moliere, in French. Since I do not read French, these were of no use to me at all. However, I could not afford to post all these books back to you, so I wrote to you at the end of August of last year, instructing you to come and collect all the books that I did not want, and asking you not to send any other books until further notice.
You did not reply to that letter. Instead you sent me a bill for forty two pounds, and a set of the plays of Schiller, in German. Since then, a new set of books has arrived every two weeks, the works of Goethe, the poems of Milton, the plays of Strindberg; I hardly know what I have. The books are still all in their boxes, in the garage, and my car has to stand in the rain outside.
I have no room for any more books, and even if I read from now until the Last Judgment, I should not finish reading all the books that you have sent me.
Please send no more books, send no more bills, send no more angry letters demanding payment. Just send one large lorry and take all the books away, leaving me only with the one set of the complete works of Shakespeare for which I have paid.
Yours faithfully,
SIMON WALKER
1.Simon Walker wrote the letter to ________
A．show his anger to Cosmo Books Ltd..
B．complain about getting books he didn’t want.
C．advise readers not to order books from Cosmo Books Ltd..
D．urge for the final solution to the problem with the unwanted books.
2.The advertisement that Mr. Walker saw in the Morning Mail was for ________
A．unlimited number of Cosmo Books.
B．a set of 10 books of the works of Shakespeare.
C．fifteen pounds and fifty pence.
D．a book containing all the plays and poems of Shakespeare.
3.Mr. Walker answered the advertisement because ________
A．he wanted a set of Shakespeare’s works which was a good bargain
B．he claimed that the books were being offered at a remarkable price.
C．he had ordered the set and had been waiting for them to come for some time.
D．the set he already had was not particularly attractive.
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The common cold is the world's most widespread illness, which is plagues(疫病) that flesh receives.
The most widespread fallacy(谬误) of all is that colds are caused by cold. They are not. They are caused by viruses passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected people from the outside world by way of packages and mail dropped from airplanes.
During the First World War soldiers who spent long periods in the trenches(战壕), cold and wet, showed no increased tendency to catch colds.
In the Second World War prisoners at the notorious Auschwitz Concentration Camp(奥斯维辛集中营), naked and starving, were astonished to find that they seldom had colds. At the Common Cold Research Unit in England, volunteers took part in Experiments in which they gave themselves to the discomforts of being cold and wet for long stretches of time. After taking hot baths, they put on bathing suits, allowed themselves to be with cold water, and then stood about dripping wet in drafty room. Some wore wet socks all day while others exercised in the rain until close to exhaustion. Not one of the volunteers came down with a cold unless a cold virus was actually dropped in his nose.
If, then, cold and wet have nothing to do with catching colds, why are they more frequent in the winter? Despite the most pains-taking research, no one has yet found the answer. One explanation offered by scientists is that people tend to stay together indoors more in cold weather than at other times, and this makes it easier for cold viruses to be passed on.
No one has yet found a cure for the cold. There are drugs and pain suppressors(止痛片) such as aspirin, but all they do is relieve the symptoms.
Which of the following does not agree with the chosen passage?
A. The Eskimos do not suffer from colds all the time.
B. Colds are not caused by cold.
C. People suffer from colds just because they like to stay indoors. . .
D. A person may catch a cold by touching someone who already has one.
Arctic explorers may catch colds when .
A. they are working in the isolated arctic regions
B. they are writing reports in terribly cold weather
C. they are free from work in the isolated arctic regions
D. they are coming into touch again with the outside world
Volunteers taking part in the experiments in the Common Cold Research Unit .
A. suffered a lot B. never caught colds C. often caught colds D. became very strong
The passage mainly discusses .
A. the experiments on the common cold B. the fallacy about the common cold
C. the reason and the way people catch colds D. the continued spread of common colds
查看习题详情和答案>>On August 26, 1999, New York City experienced a terrible rainstorm. The rain caused the streets to __36__ and the subway system almost came to a stop.
Unfortunately, this happened during the morning rush hour. Many people who were going to work were __37__ to go home. Some battled to __38__ a taxi or to get on a bus. Still others faced the __39__ bravely, walking miles to get to work.
I __40__ to be one of the people on the way to work that morning. I went from subway line to subway line only to find that most __41__ had stopped. After making my way __42__ crowds of people, I finally found a subway line that was __43__. Unfortunately, there were so many people waiting to __44__ the subway that I could not even get down the stairs to the __45__. So I took the train going in the opposite direction, and then switch back to the downtown train. Finally, after what seemed like an forever, the train __46__ my stop. Then I had to walk several blocks in the increasingly heavy rain. When I finally got to my office, I was __47__ through, exhausted and __48__.
My co-workers and I spent most of the day drying off. When it was 5:00 pm，I was ready to go home. I was about to turn off my computer __49__ I received an email from Garth, my Director:
I would like to thank all of you who made the effort and __ 50__ reported to work. It is always reassuring(令人欣慰), at times like these, when employees so clearly show their __51__ to their jobs. Thank you.
Garth’s email was short, but I learned more from that __52__ message than I ever did from a textbook. The email taught me that a few words of __53__ can make a big difference. The rainstorm and the traffic __54__ had made me tied and upset. But Garth’s words immediately__55__ me and put a smile back on my face.
36. A. break B. flood C. sink D. crash
37. A. forced B. refused C. adjusted D. gathered
38. A. order B. pay C. call D. search
39. A. climate B. scenery C. storm D. burden
40. A. used B. promised C. deserved D. happened
41. A. practice B. routine C. process D. service
42. A. to B. through C. over D. for
43. A. operating B. cycling C. turning D. rushing
44. A. check B. carry C. find D. board
45. A. street B. ground C. floor D. platform
46. A. paused B. crossed C. reached D. parked
47. A. wet B. weak C. sick D. hurt
48. A. ashamed B. discouraged C. surprised D. puzzled
49. A. while B. when C. where D. after
50. A. hardly B. casually C. absolutely D. eventually
51. A. devotion B. donation C. connection D. reaction
52. A. accurate B. urgent C. brief D. humorous
53. A. promise B. appreciation C. advice D. guidance
54. A. troubles B. signals C. rules D. signs
55. A. corrected B. supported C. amazed D. refreshed
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