题目列表(包括答案和解析)
B
Every year 2. 2 million tons of oil are put into the ocean and this oil has terrible effects on ocean life, including the coastlines where the off washes up onto shore. Some of the largest spills(溢出) in history were caused by oil tankers(油轮) running into each other or by an oil tanker sailing into shallow water and hitting the bottom of the ocean.
After these spills, officials try to discover who or what was at fault to help prevent similar accidents in the future.
One of the worst oil spills in history happened along the Alaskan（阿拉斯加） coastline in 1989. In this accident, 42,000 tons of oil spilled from a tanker which resulted in terrible damage to this sensitive natural area. In this spill, the tanker's captain, who was tired from overwork and drinking alcohol, had gone to take a rest. He gave control of the ship to the third mate. The third mate was unfamiliar with the path the ship took, and he ran the ship onto a natural underwater rock wall near the Alaskan coast. Damaged by the rock, the ship leaked(泄漏) oil out into the ocean. More than 1,600 kilometers of coastline were affected by the oil spill. Some scientists who studied nature in the area guessed that 580,000 birds and 5,500 others died when the oil covered their skin. As well, smaller shellfish and other sea creatures were later eaten by seals, whales, and other animals.
The most oil ever spilled was in 1990. As part of the Iraq war plan, 900,000 tons of oil were let out into the Persian(波斯的) Gulf by Iraq. The oil also damaged 650 kilometers of the coastline of both Kuwait and Saudi Arabia. In some places, oil on the water was 43 centimeters thick. Water birds, water plants, and baby fish were all seriously affected. The long-term effects of this act on the food chain in the area are bound to（肯定会） cause problems far into the future.
45. Oil spills have terrible effect on________.
A. ocean life B. the coastline
C. both ocean life and the coastline D. the bottom of the ocean
46. Why did the third mate run the tanker aground(搁浅地) in this accident?
A. He was tired. B. He did not know the area well.
C. He was drunk. D. He was talking on the phone.
47. According to the writer, ________.
A. the accident along the Alaskan coastline was the worst oil spill in history
B. Iraq poured oil into the the Persian Gulf on purpose
C. the effects of Iraq’s act in the Persian Gulf War have been seen fully
D. oil put into the sea by Iraq in the war was the worst accident in history
48. Which of the following is the best title for this text?
A. The Worst Oil Spill B. Pollution
C. The Persian Gulf War D. Oil Spill
Some mammals migrate（迁徒）. One of these is the caribou（驯鹿）. They travel to the tundra（苔原）every summer to eat the rich grasses that grow there. When the weather becomes cooler, they migrate to the warmer forests and spend the winter there. Another mammal that migrates is the humpback whale. They spend the winter in Hawaii, and the summer in the Arctic（北极的）waters. They travel to the Arctic to eat millions of small shrimp（虾）.
Anther habit that some animals have to survive the cold winter is called hibernation. Animals that hibernate, rest or sleep during the winter. While they are hibernating, their bodies use up the fat layer that they have put on by eating large amounts of food during the summer. Some animals that hibernate in the Arctic are small animals called lemmings（旅鼠）, squirrels（松鼠）and bears.
There are two habit adaptations that animals in the Arctic have all year round. These are called herding and pack life. Caribou are example of animals that live in herds. A herd is a group of animals that lives together for most, or all of their lives. A herd of caribou can have a thousand or more animals in it. They live in herds for protection. It is easier for caribou to protect themselves when they are together than it is when they are alone. This is because the meat-eaters hunt in packs.
A pack is a small group of animals that lives together. It is usually controlled by a head male and a female. All the members of the pack must obey them. Packs have a very definite social structure. Each animal in a pack has a different position, or importance. Animals in a pack are usually meat-eaters. They live together for protection and hunting purposes.
According to the first paragraph, the humpback whale .
A. travels to the Arctic for shrimp in summer
B. spends the winter in the Arctic
C. lives in Hawaii in summer
D. has the same living habits as the caribou
What kind of animal doesn’t hibernate in the Arctic?
A. The caribou. B. The bear. C. The squirrel. D. The lemming.
Caribou live in herds in order to .
A. use up their fat layer B. find food C. protect themselves D. hunt in packs
What do we know about pack life according to the last paragraph?
A. Animals in pack are usually grain-eaters.
B. All animals are in an equal position in a pack.
C. It is either controlled by a head mate or by a female.
D. Each animal has its own different role in a pack.
A famous American John Muir said in 1898: “The Grand Canyon… as unearthly (神秘的) in the color and grandeur (壮观) of its architecture as if you had found it after death on some other star.” Like Muir, those of us who stand along the rim are prompted to wonder about the unearthliness and the forces that created and are still changing this place.
After more than 100 years of studies, many things are still mysterious. Today visitors come by the thousands -- the great and simple of the earth -- all in a spirit of wonder. Travelers come from every state of the Union, from every country in Europe and Asia.
From the depths of the canyon comes welling silence. Seldom can you hear the roar of the river, for all sounds are swallowed in this gulf of space. “It makes one want to murmur.” A woman once whispered to her companion. This silence is not the silence of death; rather, it is a presence. It is like a great piece of music. But music made of man works up to a climax (高潮) and stops.
Now, visitors to the South Rim alone may number 18,000 in a single day. Some of that number will travel by mule train down Bright Angel Trail to the canyon's floor, cross the raging river by a suspension bridge (吊桥) and walk to the North Rim. Though the two rims face each other across only 12 miles, it is a journey of 214 miles by car from one to the other. Nor can you visit the North Rim except in summer; some 1,200 feet higher than the South Rim, it is snow covered much of the year except in July and August.
But there is no day that you may not visit the South Rim and find the sun warm on your face and the air perfumed with the incense (香气) of smoke from an Indian hearth (香炉). No wonder an American writer and journalist said, “I came here an atheist (无神论者), and departed a devout （虔诚的）believer.”
What is it that attracts so many travelers to the Canyon?
A. The unearthliness and the grandeur of its architecture.
B. The presence of American super stars.
C. The saying made by American writers and journalists.
D. The roaring of the river in the Canyon.www..ocm
What does the underlined word “simple” refer to?
A. peaceful stream B. land surface C. common people D. tamed animals
If you want to visit the North Rim from the South Rim, which of the following won’t be the way of traveling for you?
A. By train. B. By animal. C. By car. D. On foot.
The last sentence “I came here an atheist, and departed a devout believer.” implies that ______.
A. natural wonders such as the Canyon have some effect on human activities
B. all visitors to the Grand Canyon are God believers
C. atheist can’t see the magnificence of the Grand Canyon
D. the Grand Canyon is an unearthly sight that only God could create
Each new school year brings fresh reminders of what educators call the summer learning gap．Some call it the summer learning setback Put simply, it means the longer kids are out of school，the more they forget．The only thing they might gain is weight．
Most American schools follow a tradltional nine-month calendar with winter and spring breaks and about ten weeks of summer vacation．Some schools follow a year-round calendar. They hold classes ror about eight weeks at a time，with a few weeks off in between．The National Association for Year-Round Education says there were fewer than 3,000 such schools at last count．They were spread among forty-six of the tifty states．
But many experts point out that the number of class days in a year-round school is generally the same as in a traditional school．Brenda McLaugblin is research director at the National Center for Summer Learning at Johns Hopkins University．She says studies of year-round schooling have not found strong learning gains．Lead researcher Paul von Hippel said，“Year-round schools don’t really solve the problem of the summer learning setback．They simply spread it out across the year．”
Across the country, research shows that students from poor families fall farther behind over the summler than other students．Experts say this can be prevented．They note that many schools and local governments offer programs that can help．
But calling them“summer school”could be a problem．The director of the summer learning center at Johns Hopkins, Ron Fairchild, said research with groups of different parents in Chicago and Baltimore found that almost all strongly disliked the term“summer school”．In American culture，the idea of summer vacation is connected to beliefs about freedom and the joys of childhood．The parents welcomed other terms like“summer camp。”“extra time”and“hands-on learning．”
According to the first paragraph，the summer learning gap
A．helps children to gain weight
B．leads children to work harder
C．improves children’s memories
D．affects children’s regular studies
Compared to traditional schools，students in the year-round ones ．
A．perform better and have more learning gains
B．have much less time for relaxation every year
C．have generally the same number of class days
D．hold more classes with more free weeks off
Which of the following statements is true?
A．Students from poor families often fall behind after the vacation．
B．Year-round schools can solve the problem of the learning gap
C．There are schools in each state following a year-round calendar
D．Nothing can help the students who fall behind after the vacation．
Why did almost all parents dislike the term“summer school”?
A．They are worried about the quailty of the“summer school”
B．They cherish the children’s rights of freedom very much．
C．They want their children to be forced to make up the gap．
D．They can’t afford to the further study during the vacation．
What would be the best title of this passage?
A．Opening Summer Camps
B．Forbidding Summer Schools
C．Minding the Summer Learning Gap
D．Reforming Year-Round Education
All sorts of items become litter(垃圾) but two of the most common and most dangerous are cigarette butts（烟头) and plastic bags. Litter is a big problem for our environment but it is a problem that individuals can easily do something about. Not littering at all or cleaning up litter, such as cigarette butts and plastic bags, greatly improves the quality of our environment.
Although cigarette butts, are small, they are bad for the environment. Over 1,600 billion cigarette are smoked each year in China and large quantities of the butts are thrown away. Worldwide, about 4. 5 trillion butts are littered every year. Apart from the fact that butts spoil the beauty of the environment, they contain some very toxic chemicals. These find their way into the water supply where they decrease the quality of the water and endanger plants and animals that live there. So, if people have to smoke, they shouldn't throw away the butts but put them in the rubbish bin instead.
Plastic bags are another common form of litter that is a danger to the environment. There areseveral reasons for this. They are made from oil and gas, which are non—renewable resources. If they are not recycled, these resources are lost to us. In China, 2 billion plastic bags are used every day. An enormous number of these become litter. This is a huge problem because they last from 20 to 1,000 years in the environment. They float easily in the air and water and travel long distances. They find their way to rivers, parks, beaches and oceans. Plastic bags kill up to one million seabirds, 100, 000 sea mammals and countless fish each year worldwide. It is up to people not to let plastic bags become litter. It would be better if they used fewer and recycled them.
Cleaning up your cigarette butts and plastic bags would improve the environment. And we would know that we were doing something to look after our planet. However, I believe the best solution would be not to smoke or use plastic bags at all.
【小题1】 Which of the following best shows the structure of the passage?
A B. C. D.
( ①=" paragraph" 1; ②=" paragraph" 2; ③=" paragraph" 3; ④a para
graph 4 )
【小题2】The word “toxic” in the paragraph 2 most probably mean “________”
| A．precious | B．extra | C．poisonous | D．useless |
| A．Chinese smokers litter up to 4. 5 trillion butts every year |
| B．people in the world use 2 billion plastic bags in a single day |
| C．plastic bags cause 1 million deaths of seabirds each year worldwide |
| D．the butts can last 20 to 1,000 years in the environment of China |
| A．Say Goodbye to Smokin | B．Protect the Endangered Sea Animals . | C．Use Paper Bags Now | D．Clean Up Your Butts and Bags |
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