题目列表(包括答案和解析)
In the eyes of dog lovers, the dog is man’s best friend. But for much wildlife, loose dogs may be a dangerous enemy, according to a study by a biologist from Utah State University in the US.
Based on much existing research and their own case studies, Julie Smith of Utah State University and four other scientists conclude that loose dogs may represent a huge danger to wildlife, especially endangered species, by hunting down or worrying them and by spreading diseases. They also found that dogs, their worldwide numbers around 500 million, can cause more damage to wildlife and livestock(牲畜) than wolves and other enemies of these animals.
Smith gave examples from the US state of Idaho, where research showed the presence of dogs reducing some deer populations. On the Navajo American Indians’ reservation in northeastern Arizona, packs of loose dogs are attacking livestock. They have killed populations of small animals such as rabbits and act as a disease carrier for rabies(狂犬病) among people and other animals, she said. Loose dogs also were to blame for distemper(温热病) outbreak leading to a die-off of endangered black-footed ferrets in northwestern Wyoming in the 1980s.
The phenomenon is not just limited to US; it’s a global problem. Julie Smith once studied three endangered species in central Asia: wild sheep, gazelles and antelope. The rate of injury and death to these animals by loose dogs was very high. In another case, Smith found that dogs, not wolves, as originally suspected, were responsible for a large number of livestock killings in the mountainous Basque country between Spain and France.
Authors of the new study said the problem is likely to worsen as communities expand. Then how to deal with it?
Indeed, in many countries, leash(拴狗的皮带) laws permit punishment of dog owners whose pets attack wildlife. But lawbreakers are rarely punished because the police lack both people and money.
Smith has low-cost solutions to the problem for dog lovers, though. They include public dog-training programs and vaccinating (预防接种) dogs against rabies and other illnesses.
【小题1】Julie Smith’s study mainly tells us that _______.
| A．many species are endangered because they are killed by loose dogs. |
| B．wild dogs are immune to many diseases. |
| C．wolves are still the greatest enemy of livestock. |
| D．loose dogs are a great danger to wildlife. |
| A．There are around 500 million loose dogs around the world. |
| B．The black-footed ferrets in northwestern Wyoming were once the main food source of local loose dogs. |
| C．The problem caused by loose dogs is the most serious in the US. |
| D．People used to think that wolves, rather than loose dogs killed livestock in the Basque country. |
| A．More strict leash laws |
| B．Public dog-training programs. |
| C．Vaccinating people against rabies and other illnesses. |
| D．More support from the police. |
| A．A global disaster caused by loose dogs. |
| B．What makes the dog man’s greatest friend. |
| C．The problem of loose dogs and the possible solutions. |
| D．The danger of the increasing numbers of dogs. |
A black hole is created when a large star burns out. Like our sun, stars are unbelievably hot furnaces (熔炉) that burn their own matter as fuel. When most of the fuel is used up, the star begins to die.
The death of a star is not a quiet event. First there is a huge explosion. As its outer layer is blasted off into space, the dying star shines as brightly as a billion suns.
After the explosion gravity pulls in what’s left of the star. As the outside of the star sinks toward the center, the star gets smaller and smaller. The material the star is made of becomes tightly packed together. A star is so dense that a teaspoon of matter from it weighs billion of pounds.
The more the star shrinks, the stronger the gravity inside it becomes. Soon the star is very tiny, and the gravity pulling it in is unbelievably strong. In fact, the gravity is so strong that it even pulls light into the star! Since all the light is pulled in, none can go out. The star becomes black when there is no light. Then a black hole is born!
That’s what we know about black holes. What we don’t know is this: What happens inside a black hole after the star has been squeezed into a tiny ball? Does it keep getting smaller and smaller forever? Such a possibility is hard to imagine.
But if the black hole doesn’t keep shrinking, what happens to it? Some scientists think black holes are like doorways to another world. They say that as the star disappears from our universe, it goes into another universe. In other words a black hole in our universe could turn into a “white hole” in a different universe. As the black hole swallows light, the white hole shines brightly—somewhere else. But where? A different place, perhaps, or a different time — many years in the past or future.
Could you travel through a black hole? Right now, no. Nothing we know of could go into a black hole without being crushed. So far the time being, black hole must remain a mystery.
Black holes are a mystery—but that hasn’t stopped scientists from dreaming about them. One scientist suggested that in the future we might make use of the power of black holes. They would supply all of Earth’s energy needs, with plenty to spare. Another scientist wondered if a black hole could some day be used to swallow earthly waste—a sort of huge waste disposal(处理) in the sky!
When the star begins to die ______.
A. there is no fuel left in it B. its outer layer goes into space first
C. a huge explosion will happen D. it doesn’t give off light any longer
Which of the following doesn’t help produce a black hole?
A. The gravity inside the star is very strong. B. The light can’t go out of the star.
C. The star becomes smaller and smaller D. The dying star shines very brightly.
The black hole ______.
A. continues becoming smaller and smaller all the time
B. goes into another universe and becomes a white hole
C. can pull in everything we know of in the world
D. will appear at another place at a different time
What’s the best title for this passage?
A. A New Scientific Discovery: Black Holes
B. How Do Black Holes Come Into Being?
C. What Are Black Holes?
D. Travel Through A Black Hole
短文改错（共10小题；每小题1分，满分10分）
此题要求改正所给短文中的错误。对标有题号的每一行做出判断：每行只有一个错误，请按下列情况改正：
该行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
该行缺一个词：在缺词处加一个漏字符号（
），在该行右边横线上写出该加的词。
该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：请在答题卡上作答。
In the 1860s, the President Lincoln declared 76．_______________
that the slavery would be end in the USA. Inspired 77．_______________
by the promise, many black people joined in the Northern Army, 78．_______________
which made the Civil War end earlier than expect. 79．_______________
And to the black people’s disappointment, they were 80．_______________
not treated as equal citizens. Since then, the black has 81．_______________
been fighting for freedom.
During the struggle, many people are killed. The most famous 82．_______________
one was Martin Luther King. He fought for the free 83．_______________
for the black all their life. In 1963 he made his famous 84．_______________
speech “ I have a dream” under the statue of Abraham Lincoln,
that inspired many generations in America. 85．_______________
On a BA flight from Johannesburg, a middle-aged South African lady found herself sitting next 
to a black man. She called the cabin crew attendant over to complain about her seating.
“What seems to be the problem, Madam?” Asked the attendant.
“Can’t you see?” She said, “You’ve sat me next to a black. I can’t possibly sit next to this dirty disgusting human. Find me another seat!”
“Please calm down, Madam,” the attendant replied, “The flight is very full today, but I’ll tell you what I’ll do—I’ll go and check to see if we have any seats available in club or first
class.”
A few minutes later, the attendant returned with the good news, which she delivered to the lady, who cannot help but look at the people around her with a smug and self-satisfied grin.
“Madam, unfortunately, as I guessed, economy is full. I’ve spoken to the cabin services director, and club is also full. However, we do have one seat in first class.”
Before the lady had a chance to answer, the attendant continued.
“It’s most extraordinary to make this kind of upgrade, however, and I have had to get special permission from the captain. But, according to this special situation, the captain felt that it was unbelievable that someone should be forced to sit next to such an
obnoxious(讨厌的) person.”
Having said that, the attendant turned to the black man sitting next to the lady, and said, “So if you’d like to get your things, sir, I have your seat ready for you.”
At that moment, the surrounding passengers stood and gave a long-lasting ovation (欢呼) while the black man walked up to the front of the plane…
【小题1】What made the white South African lady angry?
| A．She had to find the attendant to complain. |
| B．She couldn’t find another seat to sit down. |
| C．The passenger next to her is dirty. |
D．She sat next to a blac k man. |
| A．The attendant. | B．The white woman. | C．The black man. | D．The captain. |
| A．2 | B．3 | C．4 | D．5 |
| A．The woman was obnoxious. |
| B．The black man was obnoxious. |
| C．The white woman can’t sit next to a black man. |
| D．The passengers around can’t stand the woman any longer. |
| A．people don’t like those who look down on others |
| B．the attendant aboard is unfriendly |
| C．the white lady was refused to go on the plane at last |
| D．many passengers aboard don’t like to sit next to the black man. |
“Few things help an individual more than to place responsibility upon him，and let him know that you trust him.” These words are from the black American educator，Booker Washington. He was saying that，“If you want people to grow up，you have to stop treating them like children.”
In America，families are close but children are encouraged to be independent，to make their own decisions，even at a very early age. It’s not unusual for a child of seven to be given an allowance(津贴)every week. The child is encouraged to save some of the money but he or she can spend it on whatever they choose，for example，buying clothes，school supplies or CDs. Some teenagers even have their own credit cards! That’s a big responsibility since even adults are tempted to overspend when they have credit cards.
From an early age，American children are asked for their opinions and they are included in family decision making. At the dinner table，teenagers will be listened to on any topic，from politics to buying a new family car or where the family will go on vacation. In this way, teenagers are getting practice in becoming individuals：they are learning how to stand on their own two feet.
Many Chinese young people are becoming almost as interested as American teens in searching for independence. They want to express those qualities that make them unique human beings. You can see this in the way they dress, the music they listen to and the friends they choose. “Super Girl” Li Yuchun caught the imagination of Chinese teenagers on the “Super Girl” television contest. She was not the traditional “nice，young Chinese girl”. With her short，spiky hair and boy-like clothes, she was telling everyone that she was different. She had the courage to be her own person and to stand on her own two feet...and she won!
There is an old saying，“Everyone should carefully observe which way his heart draws him and then choose that way with all his strength.” If you do this, step by step, over a period of time, you may find that you have become the person you always wanted to be.
The passage is intended to encourage the youth to________.
A. save money for useful things B. become independent
C. express their great ambitions D. make important decisions
A child of seven is given an allowance so that he can______.
A. be accepted as a popular guy B. learn to decide how to use money
C. overspend money without care D. have school supplies of his own
The author implies that many Chinese children________.
A. are more independent than Americans B. should become interested in America
C. are happy with their present situation D. are not satisfied to be nice, quiet ones
The main idea of the last paragraph is________.
A. that we should do things step by step B. why we should understand our desires
C. what we should plan for our own life D. how we can manage to realize our dreams
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com