The damming of river systems in the northwestern United States has had damaging - 高中英语试题 - 超级试练试题库

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The damming of river systems in the northwestern United States has had damaging effects on salmon(鲑鱼). In the spring young salmon, called smolts, drift into rivers from smaller streams. They swim with the current downstream heading for the Pacific Ocean. Before the large-scale constructions of dams(水坝), the young salmon used the strong flow from melting snows to get to the sea in between six and twenty days. It is necessary to do this because during these days the smolts’ bodies undergo the physiological changes for adaptation to salt water.
Unfortunately, the current has become very slow due to the construction of numerous dams. Companies operating the dams also intentionally slow the current. They store the water from the melting snow until the winter, when more electric power is needed. The net result is that many of the young fish do not survive the now sixty-day trip to the sea. Consequently, there are fewer adult salmon to migrate(回游) back up the rivers for breeding. When the time comes for the salmon to return, they again face the problem of dams. As fewer adult salmon are able to get back to their cool upstream water, they fail to produce a sufficiently new generation of salmon. This cycle could eventually lead to the extinction of the fish.
Attempts are being made to transport the young salmon down river by boats. However, many scientists think that this artificial method of getting the fish to the sea kills more than it saves. Another suggestion, recently proposed by environmentalists, is to increase the rate of water flow. This would be a partial（部分的） solution to the declining salmon numbers. One method of doing this would call for releasing water from upstream dam. This would speed up the downstream movement of the smolts.
Another method would be to reduce the water level in the dams for a period in the spring when the smolts are migrating downstream. This would also increase the flow rate temporarily without requiring large amounts of water and, thus, enable the young salmon to move downstream faster. Unfortunately, both of these proposals have met with criticism from the power companies, which strongly suggests the uncertain fate of the salmon in the region.
76. What’s the main topic of the passage?
A. The failure of adult salmon to reproduce.
B. The importance of smolts returning upstream.
C. The need for smolts to reach salt water quickly.
D. The harm caused to salmon by river damming.
77. The passage discusses all of the following methods of dealing with salmon issue EXCEPT _____.
A. carrying the fish in boats
B. allowing water to be released from upstream dams
C. dropping water levels in dams
D. breeding salmon
78. In paragraph 3, what does the author mean by the statement that many scientists think that this artificial method of getting the fish to the sea kills more than it saves?
A. Saving fish is artificial.
B. More fish die when transported than would die otherwise
C. Artificial methods of transportation give salmon the chance to get adapted to salt water.
D. The sea kills more fish than are saved by transportation.
79. Which of the following statements would the author most probably agree with?
A. The salmon problem is likely to continue.
B. A solution to the salmon problem will be found in the near future.
C. Salmon will be extinct very quickly.
D. The government should step in and provide a way out.

答案

76-79 D D B A

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试题【The damming of river systems in the northwestern United States has had damaging 】；主要考察你对题材分类等知识点的理解。[详细]

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七．阅读理解 (20分)
At first, the earth’s surface layer (层 ) was made up of huge blocks of hard, solid rocks.There slowly, the rocks broke up into smaller and smaller pieces. Finally stones, pebble(卵石) and grains of sand were formed. Many sorts of plants and animals lived and died on the surface of the earth. Their remain mixed up with the stones, pebbles and formed soil. The outmost layer of the earth is soil.
There are many ways in which large pieces of rock break into smaller ones. Wind, water, heat and cold help to break up rocks. When winds blow grains of sand against a large rock for a long time, the softer layer of the rock are slowly worn away. These leave holes and crack(裂缝) in the rock, which become bigger and finally the rock breaks up into smaller pieces.
The moving water of streams and rivers also help to break up rocks. As the water moves along, it carries with it small pieces of rock. These rub the larger ones, Thus, the larger rocks are worn down to smaller pieces.
The heat of the sun also help to breaking up rocks. When the sun shines, the rocks become very hot. If these rocks are suddenly cooled, they may crack. Ice also plays a part in making soil. Water in the cracks can turn into ice in cold weather. As this happens, it becomes bigger and cracks become wider, and finally break into smaller pieces.
1. According to the passage, soil _________ .
A. forms very slowly
B. is a mixture of stones, pebbles and sand
C. make up the layer of the earth
D. is becoming smaller and smaller
2. How many factors are mentioned in helping the forming of soil ?
A. Three         B. Four             C. Five              D.More than five
3. Which of the following speeds up the breaks of rocks most ?
A. Hot weather                          B. Cold water
C. Sharp changs in temperature             D. More dead plants in the cracks
4. Which of the following is NOT true ?
A.The remains of many plants of animals formed soil.
B. If a large rock never moves, it will never break up.
C.Even if a large rock never moves, it will break up.
D. Ice in the cracks helps to break up rocks.
5. The best titl for this passage should be ________ .
A. Soil from Rocks                    B. Ways to Break Rocks
C. Soil on the Earth                    D. Soil, Outmost Layer of the Earth

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Parents should stop blaming themselves because there’s not a lot they can do about it. I mean the teenager problem. Whatever you do or however you choose to deal with it, at certain times a wonderful, reasonable and helpful child will turn into a terrible animal.
I’ve seen friends deal with it in all kinds of different ways. One strict mother insisted that her son, right from a child, should stand up whenever anyone entered the room, open doors and shake hands like a gentleman. I saw him last week when I called round. Sprawling himself on the sofa in full length, he made no attempt to turn off the loud TV he was watching as I walked in, and his greeting was no more than a quick glance at me. His mother was ashamed. “I don’t know what to do with him these days,” she said. “He’s forgotten all the manners we taught him.”
He hasn’t forgotten them. He’s just decided that he’s not going to use them. She confessed(坦白) that she would like to come up behind him and throw him down from the sofa onto the floor.
Another good friend of mine let her two daughters climb all over the furniture, reach across the table, stare at me and say, “I don’t like your dress; it’s ugly.” One of the daughters has recently been driven out of school. The other has left home.
“Where did we go wrong?” her parents are now very sad. Probably nowhere much. At least, no more than the rest of that unfortunate race, parents.
71. This text is most probably written by ______.
A. A specialist in teenager studies.      B. a headmaster of a middle school
C. a parent with teenage children       D. a doctor for mental health problems
72. The underlined word “it” in the second paragraph refers to ______.
A. the change from good to bad that’s seen in a child
B. the way that parents often blame themselves
C. the opinion that a child has of his parents
D. the advice that parents want their children to follow
73. The boy on the sofa would most probably be described as ______.
A. lazy       B. quiet       C. unusual       D. rude
74. From the second example we can infer that the parents of the two daughters ______.
A. pay no attention to them          B. are too busy to look after them
C. have come to hate them           D. feel helpless to do much about them
75. What is the author’s opinion about the sudden change in teenage children?
A. Parents have no choice but to try to accept it.
B. Parents should pay still more attention to the change.
C. Parents should work more closely with school teachers.
D. Parents are a fault for the change in their children.

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About 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink sea water, how can it be important?
Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!
Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.
The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.
Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is!
46. Which of the following is the proper order of the food chain?
A. small animals→algae→microscopic animals→large animals→man
B. algae→microscopic animals→large animals→larger animals→man
C. small animals→algae→large animals→microscopic animals→man
D. microscopic animals→algae→large animals →larger animals→man
47. People used to think that the rubbish thrown into the sea ________.
A. wouldn’t harm the fish in the sea   B. would change the balance of the food chain
C. would be broken down in the sea   D. wouldn’t do much harm to the sea
48. From the passage, we learn that _________.
A. most fish and sea animals live at the surface of the seas
B. it is very difficult to break the balance of a food chain
C. excessive fishing has caused the decrease in fish stock
D. it won’t be long before the problems concerning oceans will be solved
49. Which of the following is NOT a way being used to protect oceans?
A. The use of international agreements.
B. Forbidding fishing to protect fish stocks.
C. The use of new techniques.
D. Raising people’s awareness of the need to protect oceans.
50. What would be the best title of the passage?
A. The importance of seawater.
B. Life in the oceans.
C. How to protect food chains.
D. How to deal with seawater pollution.

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Students throughout the world spend their money in different ways. A detailed study on student spending indicated that young people"s spending habits have changed greatly over the past few years. The study also says that the change is about the same around the world, however. Here are some examples of popular student spending habits---both healthy and also unhealthy---around the world today.
Students these days have too much brand awareness, so their spending on clothes is now quite high. On average, students buy one or two complete sets of new clothes each month, and this makes their total spending higher.
Student spending shows quite an up-and-down pattern as they get older. Students spend a lot more money in high school than before their high school years because when they enter high school, their exposure (接触到) to branded goods increases. As the students get close to graduation, their expenses start to go down. This is the time when they have to become more responsible about money and start to understand its importance.
Students also spend a lot more on entertainment than their parents did when they were young, because of the easy access to entertainment these days. Shopping is considered to be quite entertaining because of all the different forms of amusement presented by shopping malls. These attract students to buy things.
Student spending on food hasn"t increased much, but there has been a marked increase in the use of alcohol. There are several more places in which students can drink now. The culture of having parties has also grown a lot among students too, and students usually end up spending a lot on alcohol in such places.
This is not such a bad situation, actually. The study indicates that although student spending has shot through the roof, at the same time, they are financially much stronger today than they were in the past. This is compensation (补偿，回报), and probably it is just another branch of the life that we are living in this speedily advancing world.
60. What is the passage mainly about?
A. Unhealthy student spending habits.
B. Why student spending is changing.
C. How a student should spend money.
D. A study on student spending.
61. Why do students spend less money just before graduation?
A. They see fewer products.
B. They are more conscious of the value of money.
C. They have no time to entertain themselves or go shopping.
D. Their spending on clothing goes down.
62. What can we learn from the passage?
A. Student spending habits are becoming worse and worse.
B. Today"s students spend more money on entertainment than on clothing.
C. Today"s students are better at earning money than their parents.
D. Student spending on food has increased the least.
63. Which of the following best shows the structure of the passage?
①Paragraph 1; ②="Paragraph" 2; ③="Paragraph" 3; ④="Paragraph" 4;
⑤="Paragraph" 5; ⑥="Paragraph" 6;

题型：不详难度：| 查看答案

Do you enjoy reading? Here readers of your age from all over the United States recommend (推荐) great books for you to read:
My favorite book is Don’t Die, My Love by Lurlene McDaniel. I love all her books, but this was the first one I read and I have to say, it is by far my favorite. It doesn’t end like other books, and I cried while reading.
I think Nancy Drew is great! Nancy is a detective (侦探) who has many fantastic ideas! I love it because it’s a book from when my grandma was my age, and I can share the fun with her!
I highly recommend Skinny Bones by Barbara Park. It is funny so please add it on your book list. You don’t want to miss out funny stories！
I would suggest ______ by Judy Blume. It is based on real things that happened to Judy Blume. It is about a girl, Alice, who meets some girls at a new state. They become friends, make a club and meet once a week. They stop after two weeks because they all like a boy in their class and put him as number one. I think every girl should read this because it is about our growing up.
I read a book called Neela: Victory Song and it was so good I read it twice! It takes place in India in 1936 and this 12-year-old girl named Neela tries to save her father! It has lots of history in it! I also learned a lot about different cultures! The author’s name is Chitra Banerjee Divakaruni.
44. According to the reader, Skinny Bones can be described as a ________ story.
A. sad                     B. history                   C. funny                       D. detective
45. From which book can we learn different cultures?
A. Skinny Bones.        B. Nancy Drew.          C. Don’t Die, My Love. D. Neela: Victory Song.
46. The best name of the 4th book is ________.
A. My Secret   B. Growing Trouble   C. Three Friends D. Alice Learns a Lesson
47. Which is TRUE about Nancy Drew?
A. Both the reader and the reader’s grandma love this book.
B. It’s based on real things that happened to the author.
C. It’s about a12-year-old girl who tries to save her father.
D. It doesn’t have a common ending like other books.

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