题目
题型:不详难度:来源:
With only about 1,000 pandas left in the world, China is desperately trying to clone the animal and save these in a dangerous situation. That"s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called "Noah"s Ark".
Noah"s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of these animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M"s College of Veterinary, Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds and reptiles will probably become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
"The nuclear transfer of one species to another is not easy, but the lack of available panda eggs could be a major problem," Kraemer believes. "They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it"s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort," adds Kraemer, who is one of the leaders of the Project at Texas A&M, the first-ever attempt at cloning a dog.
"They are trying to do something that"s never been done, and this is very similar to our work in Noah"s Ark. We"re both trying to save animals that face extinction. I certainly appreciate their effort and there"s a lot we can learn from what they are attempting to do. The cooperation between us is very much needed."
67. The final aim of "Noah"s Ark" project is to___________. .
A. make efforts to clone the endangered pandas
B. save endangered animals from dying out
C. collect DNA of endangered animals to study
D. transfer the nuclear of one animal to another
68. According to Professor Kraemer, ___________.
A. the long time lasting cloning research could be successful.
B. the eggs transfers immediately result in having a baby.
C. the lack of nuclear transfer could be a major problem to have new pandas.
D. if species should die out, basic building blocks would heal them.
69. The best title for the passage may be______________.
A. China"s Success in Pandas Cloning
B. Helping Ways to Avoid Extinction
C. Exploring the Possibility to Clone Pandas
D. The Practice in Noah"s Ark
70. From the passage we know that______________.
A. Kraemer and his team have succeeded in cloning a panda
B. scientists try to implant a panda"s egg into a rabbit
C. Kraemer will work with Chinese scientists in clone researches
D. about two thousand species are to die out in a century
答案
小题1:B
小题2:A
小题3:C
小题4:D
解析
核心考点
试题【With only about 1,000 pandas left in the world, China is desperately trying to c】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
Ⅲ.阅读(共两节,满分40分)
第—节 阅读理解(共15小题;每小题2分,满分30分)
阅读—列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
Thailand’s giant pandas have finally produced a baby. Chiang Mai zoo director Thanapath said eight-year-old female Lin Hui gave birth to a baby panda weighing about 200 grams.
The pandas, Lin Hui and Chuang Chuang, the zoo’s star residents(居民), had shown no interest in reproducing the traditional way since they both arrived on a 10-year loan from China in 2003. The zoo workers’ effort of artificial insemination(人工授精) worked. The baby panda will officially belong to China but Thailand will raise it for about 24 months, Thanapath said.
Thanapath said Lin Hui is very protective of her child and won’t allow any officials to get close. “She holds the baby very carefully.” he said. “She knows how to be a mother even though she has never been one before.” The baby panda appears to be getting along well with its much larger mother.
The birth appeared on the front pages of many Thai newspapers, which carried photos of the baby which is so tiny that it can be held in the hands of a zoo keeper. Other pictures showed the mother Lin Hui gently holding her baby. Thanapath said, “It is great happiness to see the baby panda.We are so happy that we can breed(繁殖)a panda. Every worker at the zoo is proud and I think every Thai will be proud too.”
Breeding pandas is a common practice in China, where dozens are born each year. But it is a rare thing outside of the country. Giant pandas are among the world’s most endangered animals. Nearly 1,600 pandas are believed to survive in China and about 180 are being raised in zoos worldwide.
41. According to the passage, the two pandas, Lin Hui and Chuang Chuang, ______________.
A. are regarded as the best residents
B. arrived in Thailand four years ago
C. had a baby panda in the traditional way
D. are very popular in the zoo in Thailand
42. The baby panda that Lin Hui gave birht to ______________.
A. will be sent to China in two years B. is her second baby
C. weighs about one kilogram D. will stay in Thailand for ten years
43. From Paragraph 3 we learn that Lin Hui_______________.
A. doesn’t know how to protect her baby
B. allows people to touch her baby
C. loves her baby very much
D. always leaves her baby alone
44. We can infer that Lin Hui’s giving birth_________________.
A. set a good example to China B. was hot news in Thailand
C. was a result of good luck D. attracted the world’s attention
45. The fact that breeding pandas is a common practice in China indicates that_________________.
A. all pandas in the world should live in China
B. few countries in the world want to breed pandas
C. pandas won’t be in danger in the near future
D. China plays a leading role in breeding pandas
Zhoukoudian is a small village situated about 50 kilometers to the southwest of Beijing. In the 1920s, archaeologists discovered some prehistoric human bones there which changed people’s view of China’s history. They came from an unknown species of man and were the first evidence of human life in China thousands of years ago. The remains were three teeth!
In 1929, a complete skull was also discovered. Eventually, archaeologist found almost 200 items, including six skulls and more than 150 teeth. These discoveries proved the existence of a human species who lived in the area between 700,000 and 200,000 years ago. Four sites where Beijing Man and his relatives lived were discovered on the northern face of Longgushan. They lived in the caves in the area.
However, the life span of Beijing Man was short. About 70% of the peole probably died before the age of 14. Fewer than 5% lived to the age of 50. Ashes were found alongside the fossils which showed they had used fire for cooking food and also for light, warmth, and protection against wild animals. This is the earliest evidence of the use of fire anywhere in the world. They also made tools of bones and stones. Unfortunately, when Japan invaded(侵略) China in 1937, excavations(挖掘) at the Beijing Man Site stopped and most of the fossils disappeared, including a Beijing Man skull. After the People’s Republic of China was established in 1949, the work started again.
Zhoukoudian was listed as a World Heritage Site in December 1987. It has not only given us important information about prehistoric Asian societies, but also provided amazing evidence about the process of evolution. Today, parts of the caves have been badly affected by rain. Some areas are almost completely covered in weeds, causing serious damage. Pollution from the nearby factories has also contributed to the problem. This is a very serious matter and the Chinese Academy of Sciences is trying to raise public awareness of it.
46. Archaeologists _________________.
A. thought that Zhoukoudian was a beartiful village
B. thought that the findings in Zhoukoudian wouldn’t change the history of China
C. discovered some prehistoric human bounes in Zhoukoudian
D. thought that the findings in Zhoukoudian are the first evidence of human life in Asia
47. Beijing Man used fire to do all of the following things EXCEPT _______________.
A. light in the dark B. keep warm
C. make tools D. scare wild animals away
48. Which of the following statements is NOT true?
A. The digging was delayed by the Japanese invasion in the 1930s.
B. These ancient Chinese were the first people to use fire in daily life.
C. Some valuable things excavated from the site are still missing.
D. The digging of Zhoukoudian is famous and is well-funded(得到很好的资助).
49. What’s the main idea of the last paragraph?
A. The digging of Zhoukoudian is still under way.
B. Zhoukoudian plays an important part in the study of prehistoric societies.
C. Zhoukoudian is a World Heritage Site.
D. Zhoukoudian is in great need of protection.
50. From the passage, we can infer that ______________.
A,. the work of excavating the Beijing Man Site has not proceeded(进行) smoothly
B. Beijing Man had a short life
C. Beijing Man lived in the caves of Longgushan
D. arvhaeologists found six complete skulls and more than 150 teeth in 1929.
第三节:完形填空(共15小题;每小题1分,满分15分)
阅读下面短文,掌握其大意,然后从51~65题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。
Strange things happen to time when you travel. __51___the earth is divided into 24 time zones, one hour apart, you can have days with __52___ or fewer than 24 hours, and weeks with more or fewer than seven days.
If you __53___ a five-day trip across the Atlantic Ocean, your __54___ enters a different time zone every __55___. As you enter each zone, the time __56___ one hour. Traveling west, you set your clock back; traveling east, you set it __57___. Each day of your trip has __58___ 25 or 23 hours.
If you travel by ship across the Pacific, you ___59___ the international date line. By agreement, this is the point _60___ a new day begins. __61___ you cross the line, you change your __62___ one full day, backward __63____ forward. Traveling east, today __64___ yesterday; traveling west, __65___ is tomorrow!
51. A. Because B. If C. Although D. When
52. A. much B. more C. many D. less
53. A. do B. make C. go D. travel
54. A. plane B. train C. car D. ship
55. A. day B. night C. hour D. time
56. A. goes B. changes C. shows D. adds
57. A. ahead B. upward C. backward D. fast
58. A. neither B. either C. both D. nor
59.A. travel B. trip C. cover D. cross
60.A. which B. what C. that D. where
61.A. When B. Where C. While D. Before
62.A. time B. calendar C. date D. hour
63.A. and B. or C. but D. still
64.A. changes B. makes C. becomes D. goes
65.A. which B. this C. that D. it
Specialists say it is not easy to get used to life in a new culture. “Culture shock” is the term these specialists use when talking about the feelings that people have in a new environment. There are three stages of culture shock, say the specialists. In the first stage, the newcomers like their new environment. Then, when the fresh experience dies, they begin to hate the city, the country, the people, and everything else. In the last stage, the newcomers begin to adjust to their surroundings and, as a result, enjoy their life more.
There are some obvious factors(因素)in culture shock. The weather may be unpleasant. The customs may be different. The public service systems—the telephones, post office, or transportation—may be difficult to work out. The simplest things seem to be big problems. The language may be difficult.
Who feels culture shock? Everyone does in this way or that. But culture shock surprises most people. Very often the people having the worst culture shock are those who never had any difficulties in their own community. Coming to a new country, these people find they do not have the same established positions. They find themselves without any identity. They have to build a new self-image.
Culture shock gives rise to a feeling of disorientation(迷失方向). This feeling may be homesickness. When homesick, people feel like staying inside all the time. They want to protect themselves from the strange environment, and create an escape inside their room for a sense of security. This escape does solve the problem of culture shock for the short term, but it does nothing to make the person familiar with the culture. Getting to know the new environment and gaining experience — these are the long-term solutions to the problem of culture shock.
76. When people move to a new country, they _______.
A. will get used to their new surroundings with difficulty
B. have well prepared for the new surroundings
C. will get used to the culture of the country quickly
D. will never be familiar with the culture of the country
77. According to the passage, factors that give rise to culture shock include all of the following except __________.
A. language communication B. weather conditions and customs
C. public service systems D. homesickness
78. According to the passage, the more successful you are at home, _______.
A. the fewer difficulties you may have abroad
B. the more difficulties you may have abroad
C. the more money you will earn abroad
D. the less homesick you may feel abroad
79. When people are homesick, they tend to ______.
A. find some people to talk to B. go outside to have a walk
C. visit their friends far away D. stay indoors all the time
80. The writer tells us that the best way to overcome culture shock is to ______.
A. protect ourselves from unfamiliar environment
B. develop a strange sense of self-protection
C. get familiar with new culture
D. return to our own country
As I had my first child, I promised myself never to be a pushy parent. I was going to be a very 36 and understanding mother.
Five years later my little boy was about to 37 for his yellow belt in karate(空手道). As a five-year-old child, he wasn’t taking it 38 , because it was Mom trying to help him. I found myself yelling and telling him he would never get the belt acting like that. I was trying to 39 him his back-flip(背摔). He continued to play and I continued to 40 . Finally I had made him feel like he couldn’t 41 anything, just as I promised myself I wouldn’t do.
Still mad and stubborn I couldn’t 42 . I had to teach him his flip. He was doing fine with it by the time we had to leave to go to karate. While taking the test, he did 43 . His instructor would ask him to do something, and it became 44 for him. He never asked him to do the back-flip. He had passed his yellow belt test.
We got in the car to 45 when he looked at me and said ”Mom, why did you make me do that back-flip so many times, 46 it wasn’t even on the test.” The words wouldn’t have 47 anything to anyone else, but it was a slap in my face. That night while 48 in bed, I told him I loved him.
He was 49 and didn’t say anything, just giggled. I said “I really do love you baby.” I was still feeling 50 , and also wondering if he had 51 me. Finally he replied in the 52 voice, “I know you do, but I love you more.”
He had forgiven me and I had decided that his feeling were more 53 than any test he would 54 take. I made a new 55 to be better mother and to accept that he was only a child.
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