After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.
Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.
The disappearance of the wolves had many unexpected results. Deer and elk population-major food sources for the wolf grew rapidly. These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote population also grew quickly. The coyotes killed a large percentage of the park’s red foxes, and completely drove away the park’s beavers(河狸).
As early as 1966, biologists asked the government to consider reintroducing wolves to Yellowstone Park. They hoped that wolves would be able to control the elk and coyote problems. Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.
The government spent nearly 30 years coming up with a plan to reintroduce the wolves. The US Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk, deer, and coyote population are down, while beavers and red foxes have made a comeback. The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
1.Which of the following animals were brought back to the Yellowstone area?A.Deer and elk. | B.Coyotes. | C.Red foxes. | D.Gray wolves. |
A.Tested. | B.Separated. | C.Forced out. | D.Tracked down. |
A.Damage to local ecology. | B.A decrease in the park’s income. |
C.Arise in plant diversity. | D.An increase in the variety of animals. |
A.Doubtful. | B.Positive. | C.Negative. | D.Not interested. |
A.The researches on wolves in the United States. |
B.The diversity of plants in the Yellowstone Park. |
C.The conflict between wolves and other animals. |
D.The reintroduction of wolves to Yellowstone Park. |
The Adventures of Tom Sawyer was written
Mark Twain was considered as one of
Because he has brought many funny stories to us, he will always
A.do I | B.can they | C.can’t they | D.do they |
现在的你,已经进入毕业年级,初中生活转瞬即逝。假设你将代表学校参加长沙市中学生英语演讲比赛,讲的题目是How to Have a Meaningful School Life.请你用英语写一篇演讲稿,就学生学习、课余活动、兴趣爱好等方面展开演讲,鼓励大家珍惜时间,快乐而有意义地度过初中生活。
要求:
1、80词左右(标题和开头已给出,不计入总词数);
2、可适当增加细节,以使行文连贯;
3、文中不得出现真实的人名和校名。
How to Have a Meaningful School Life
As a student in Grade 9, it’s my great honor to be here to share something with you.
It’s necessary to discover what you are good at or not and what you like or dislike.
Many students would be unhappy if they
You
It is not enough
It’s a good plan to try as many ideas
At 8, 844, 43 meters high, Mount Qomolangma is the tallest mountain on Earth. While it is famous for its beautiful views, parts of the mountain are facing a problem: rubbish. Every year, thousands of visitors throw away tons of rubbish, such as bottles and plastic bags.
According to the UN, over 140 tons of rubbish has been left on the mountain. To reduce rubbish, China is limiting(限制) the number of people who are allowed to climb up the north side of the mountain. Only 300 people will be allowed to climb it, and only during spring.
Local people cleaned the mountain last year, removing rubbish at a height of 5,200 meters. They collected about 8.4 metric tons(公吨) of rubbish。
This year, the local government plans to spend 4 million yuan on a new clean-up activity. The local government is also setting up stations to sort(分类), recycle and break down rubbish collected from the mountain. A group of artists will also try to turn the rubbish into art works. They will show these works of art to remind people not to leave rubbish when climbing the mountain.
1.What problem are parts of Mount Qomolangma facing?A.Air pollution. | B.Rubbish. | C.Noise. | D.Water pollution. |
A.140. | B.5,200 | C.4 million. | D.300. |
A.using up | B.making better | C.putting on | D.taking away |
A.teach people to make works of art |
B.help people to know about Qomolangma |
C.encourage people to clean up Qomolangma |
D.remind people not to throw rubbish on Qomolangma |
A.A notice. | B.News. | C.A story. | D.An advertisement. |
① . The beginnings of life provide scientists with some of the most difficult questions of modern science. Our knowledge of the development of cells, from which all forms of life are made, is not complete because we do not understand very well the conditions on our planet four billion years ago. Why and how did cells first appear? Was this very probable to happen under the conditions then? Might this happen in other places in the universe(宇宙)?
② . A group of scientists at University College London are trying to answer these questions. They started by studying the ways in which the first cells on the Earth might have been formed. Next they will use a powerful new telescope(望远镜) to look at places far away in the universe. The scientists hope that the results will improve our understanding of the development of life on the Earth and help us to find similar conditions for life development on other planets.
③ . Dr Nick Lane, who is in charge of(负责) the University College London team, has suggested that 4 billion years ago warm water springs(泉) on the floor of the Earth’s ocean might have helped to create life. Each spring consists of tiny connected holes that water passes through. The team has created models of these springs with these holes in their lab. They have found that they encourage chemical reactions(反应) between hydrogen(氢) in the liquids(液体) that come out of them and the carbon dioxide(二氧化碳) in the sea water.
④ . These building blocks are not living themselves, but when there are enough of them joined together in the right way, they can make living things. Water in the system of springs moves the building blocks around until there are a lot of them in a small area. Things that look very much like real living cells can be made in this way.
1.About ________ years ago, different forms of life first appeared on the Earth according to the passage.A.forty million | B.four billion | C.five million | D.ten billion |
A.the same cells found on the Earth | B.suitable places for human to live |
C.new forms of life unknown on the Earth | D.similar conditions for life development |
A.is made up of | B.is proud of | C.is satisfied with | D.is famous for |
A.① | B.② | C.③ | D.④ |
A.Enough building blocks joined together in the right way make living things. |
B.Water in the system of springs moves the building blocks around till they are in a small area. |
C.The building blocks are living themselves and the scientists change them into living cells. |
D.Chemical reactions take place between hydrogen and carbon dioxide. |
A.fall asleep | B.fell asleep |
C.soon asleep | D.fast asleep |
A.had done; didn’t finish | B.was doing; hasn’t finished | C.did; wouldn’t finish | D.has done; hadn’t finished |
A woman saw three old men sitting outside the door. She said, “I don’t think I know you, but you must be very hungry. Please come in and have something
“We don’t go into a house
“Why is that?” she asked.
One of the old men answered, “His name is Wealth(财富), this is Success(成功), and I am Love.” Then he said, “Now go in and
The woman went in and told her family what had happened, she said, “Let’s invite Wealth. We are so
In the end the family decided to take the
A.to say | B.to eat | C.to use | D.to drink |
A.together | B.alone | C.crowdedly | D.lonely |
A.play | B.exercise | C.agree | D.discuss |
A.poor | B.rich | C.lucky | D.happy |
A.worse | B.better | C.less | D.more |
A.father’s | B.mother’s | C.daughter’s | D.parents’ |
A.which | B.who | C.what | D.whom |
A.left | B.followed | C.stopped | D.pulled |
A.only | B.hardly | C.never | D.almost |
A.Whenever | B.Whatever | C.However | D.Wherever |