Recently, some concerns have been raised about the health of the world's banana plants. Many media reports have said that bananas may completely disappear in the coming ten years.
Bananas are one of the world's most important food crops. They are also the fourth most valuable export. Bananas do not grow from seeds. Instead, they grow from existing plants. Bananas are threatened by disease because all the plants on a farm are copies of each other. They all share the same genetic weaknesses.
For example, the Cavendish banana is most popular in American markets. It is an important export crop. However, some kinds of fungus (真菌) organisms easily infect the Cavendish. Black Sigatoka disease affects the leaves of Cavendish banana plants. The disease is controlled on large farms by putting chemicals on the plant's leaves. Farmers put anti-fungal chemicals on their crops up to once a week.
Another fungal disease is more serious. Panama disease attacks the roots of the banana plant. There is no chemical treatment for this disease. Infected plants must be destroyed. Panama disease has affected crops in Southeast Asia, Australia and South Africa. There is concern that it may spread to bananas grown in the Americas. This could threaten an important export product for Central and South America.
The International Network for the Improvement of Banana and Plantain, whose headquarter lies in France, supports research on bananas. The group says that more research must be done to develop improved kinds of bananas.
The group says that fungal diseases mainly affect only one kind of banana. In fact, there are five-hundred different kinds of bananas. The United Nations Food and Agriculture Organization says the Cavendish banana represents only ten percent of world production.
The UN agency says farmers should grow different kinds of bananas. This protects against diseases that affect only one kind. Experts warn that disease may cause the Cavendish banana to disappear. This has already happened to one popular banana because of its genetic weakness against disease. (words: 335)
1.What does the passage mainly tell us?
A.Bananas are the world’s most important food crops.
B.There are five hundred different kinds of bananas.
C.The risk to a popular banana shows need to grow other kinds.
D.How to grow bananas in different countries.
2.Bananas are threatened by diseases because __________.
A.they have genetic weaknesses against disease.
B.they are one of the most valuable exports.
C.the only way to prevent it is to put chemicals on their leaves.
D.they grow from the seed
3.Panama disease__________.
A.doesn’t belong to fungal disease.
B.has spread to bananas in the world.
C.affects the leaves of banana plants.
D.destroys the bananas more seriously than Black Sigatoka disease.
4.We can infer from Paragraph 6 that ____________.
A.the center of the group is in the US.
B.the key to solving the disease is to research all kinds of bananas.
C.the Cavendish banana covers only a small part of the output of bananas.
D.each fungal disease affects five hundred different kinds of bananas.
5.According to the passage, which information is right?
A.The Cavendish banana can be mainly imported from North America and Europe.
B.Fungal diseases mainly affect the Cavendish banana.
C.The Cavendish banana won’t die out in the future.
D.Panama disease affects the leaves of banana plants.
高二英语阅读理解中等难度题
Recently, some concerns have been raised about the health of the world's banana plants. Many media reports have said that bananas may completely disappear in the coming ten years.
Bananas are one of the world's most important food crops. They are also the fourth most valuable export. Bananas do not grow from seeds. Instead, they grow from existing plants. Bananas are threatened by disease because all the plants on a farm are copies of each other. They all share the same genetic weaknesses.
For example, the Cavendish banana is most popular in American markets. It is an important export crop. However, some kinds of fungus (真菌) organisms easily infect the Cavendish. Black Sigatoka disease affects the leaves of Cavendish banana plants. The disease is controlled on large farms by putting chemicals on the plant's leaves. Farmers put anti-fungal chemicals on their crops up to once a week.
Another fungal disease is more serious. Panama disease attacks the roots of the banana plant. There is no chemical treatment for this disease. Infected plants must be destroyed. Panama disease has affected crops in Southeast Asia, Australia and South Africa. There is concern that it may spread to bananas grown in the Americas. This could threaten an important export product for Central and South America.
The International Network for the Improvement of Banana and Plantain, whose headquarter lies in France, supports research on bananas. The group says that more research must be done to develop improved kinds of bananas.
The group says that fungal diseases mainly affect only one kind of banana. In fact, there are five-hundred different kinds of bananas. The United Nations Food and Agriculture Organization says the Cavendish banana represents only ten percent of world production.
The UN agency says farmers should grow different kinds of bananas. This protects against diseases that affect only one kind. Experts warn that disease may cause the Cavendish banana to disappear. This has already happened to one popular banana because of its genetic weakness against disease. (words: 335)
1.What does the passage mainly tell us?
A.Bananas are the world’s most important food crops.
B.There are five hundred different kinds of bananas.
C.The risk to a popular banana shows need to grow other kinds.
D.How to grow bananas in different countries.
2.Bananas are threatened by diseases because __________.
A.they have genetic weaknesses against disease.
B.they are one of the most valuable exports.
C.the only way to prevent it is to put chemicals on their leaves.
D.they grow from the seed
3.Panama disease__________.
A.doesn’t belong to fungal disease.
B.has spread to bananas in the world.
C.affects the leaves of banana plants.
D.destroys the bananas more seriously than Black Sigatoka disease.
4.We can infer from Paragraph 6 that ____________.
A.the center of the group is in the US.
B.the key to solving the disease is to research all kinds of bananas.
C.the Cavendish banana covers only a small part of the output of bananas.
D.each fungal disease affects five hundred different kinds of bananas.
5.According to the passage, which information is right?
A.The Cavendish banana can be mainly imported from North America and Europe.
B.Fungal diseases mainly affect the Cavendish banana.
C.The Cavendish banana won’t die out in the future.
D.Panama disease affects the leaves of banana plants.
高二英语阅读理解中等难度题查看答案及解析
A lot of measures have been taken recently, of benefits, however, some are difficult to see in the short term.
A. what B. whose C. which D. whom
高二英语单项填空中等难度题查看答案及解析
People have been talking about health for a long time because people know the importance of it. People's understanding of health also becomes deeper with the progress in scientific research. Recently the term "health" has come to have a wider meaning than it used to. It no longer means just the absence of illness. Today, health means the well-being of your body, your mind and your relationship with other people. This new concept of health is closely related to another term-quality of life. Quality of life is the degree of overall satisfaction that a person gets from life.
Why has the emphasis of health shifted from the absence of disease to a broader focus on the quality of a person's life? One reason for this has to do with the length and conditions of life that people can now expect. Medical advances have made it possible for people today to live longer, healthier lives. Imagine for a moment that you were born in the year 1900. You could have expected on average to live until about the age of 47. In contrast, if you were born in the year 1999, you could expect to live to the age of 75.
1.________ leads to people's deeper understanding of health.
A.Common knowledge B.Better conditions of living
C.Progress in scientific research D.Quality of life
2.According to the passage, to people of today, health means ________.
A.absence of illness B.overall satisfaction with life
C.good conditions of living D.a long life
3.The emphasis of health has shifted nowadays because _________.
A.people enjoy better conditions of living and they can live longer
B.people pay more attention to their physical health, not their mental health
C.people have realized the importance of mental well-being
D.people are inspired by medical advances
4.This passage is mainly about __________.
A.different understandings of the term "health"
B.improving the quality of life
C.the importance of quality living
D.people's expectations of a long and healthy life
高二英语阅读理解简单题查看答案及解析
People have been talking about health for a long time because people know the importance of it. People's understanding of health also becomes deeper with the progress in scientific research. Recently the term "health" has come to have a wider meaning than it used to. It no longer means just the absence of illness. Today, health means the well-being of your body, your mind and your relationship with other people. This new concept of health is closely related to another term-quality of life. Quality of life is the degree of overall satisfaction that a person gets from life.
Why has the emphasis of health shifted from the absence of disease to a broader focus on the quality of a person's life? One reason for this has to do with the length and conditions of life that people can now expect. Medical advances have made it possible for people today to live longer, healthier lives. Imagine for a moment that you were born in the year 1900. You could have expected on average to live until about the age of 47. In contrast, if you were born in the year 1999, you could expect to live to the age of 75.
1.________ leads to people's deeper understanding of health.
A.Common knowledge
B.Progress in scientific research
C.Better conditions of living
D.Quality of life
2.The emphasis of health has shifted nowadays because _________.
A.people enjoy better conditions of living and they can live longer
B.people pay more attention to their physical health, not their mental health
C.people have realized the importance of mental well-being
D.people are inspired by medical advances
3.We can infer from the passage __________.
A.nowadays the emphasis of health has a broader focus because of improvements in the quality of food
B.the overall quality of people's lives improved greatly in the 20th century
C.those who never fall ill are the truly healthy people
D.those who were born before 1900 could not have lived until now
4.This passage is mainly about __________.
A.different understandings of the term "health"
B.improving the quality of life
C.the importance of quality living
D.people's expectations of a long and healthy life
高二英语阅读理解中等难度题查看答案及解析
Recently, educators and parents become concerned about the poor performance of boys in school. The so-called “boy crisis” in education refers 1. both their academic performance and their behavior. In both areas boys’ results are much 2. (bad) than girls’.
USA data shows that boys rank behind girls in almost all areas of schooling. They earn lower 3. (grade) overall in primary school and high school. They are behind girls in reading and writing, and 30 percent of 4. are in bottom quarter of standardized tests, 5.(compare) with 19 percent of girls.
Although the causes of the “boy crisis” are not 6. (full) understood, some experts believed that the same-sex classrooms and schools may help solve the problem. The idea is7.(remove) some of the distractions(分心) caused by the opposite sex, in order to improve students’ concentration and hopefully their grades. The first Chinese school to experiment with this idea 8. (be) Shanghai No.8 Middle School, 9.began “boys-only” classes in September, 2012. Although it is too early to tell if the reform has made a difference, its supporters argue that the results are 10. (promise).
高二英语短文填空中等难度题查看答案及解析
Right now in China, talks on the street have been about the strange weather and it's raising a lot of concerns. A heavy haze(雾霾) has blanketed many cities in the northern and southern parts of the country in part of an unusual weather system that’s descended on the nation.
The haze stretches over a vast area, from Hebei and Shan-dong Provinces in the north all the way to Zhejiang, Anhui, Jiangsu, Hunan and Fujian provinces in the south. At its worst, the smog is reducing visibility to less than 200 meters and disrupting traffic, both on the ground and in the air. The weather front has also led many to worry about the possible health impacts.
Many cities are waking up to another day covered by a dense haze. In Beijing, drivers have to keep their lights on even though it’s already past eight o’clock in the morning. Even driving at very slow speeds, the roads can still be very dangerous. In some of the worst hit areas, drivers can’t even tell the colors of traffic signals. Authorities have stepped in to close off many highways across the troubled region. In Shandong Province, the highways that are open are backed up for miles. And traffic police have stepped up their patrols.
In the region’s airports, flights information boards have gone red. A huge number of flights have been delayed or cancelled, nearly three hundred in Beijing alone, leaving thousands of passengers stranded. Some are more frustrated than impatient. Passenger from Jinan airport, Shangdong province, said: “I’ve been waiting for more than five hours. It’s Mother Nature, so there’s really nothing we can do.” The airport is urging passengers to confirm with their carrier whether their flight will still take off as scheduled.
Back on the city streets, people are wearing breathing masks to get free from any ill effects. Fog has cleared a little in Shanghai. But damage has already been done. Shanghai resident said: “I’ve been wearing the mask, but still, my throat feels sour and itchy. I think it’s because of the weather.”
The weather forecast predicts a cold front is about to sweep across central and eastern China tomorrow. Many are hoping that this will clear away the depressive haze as well as the harm it brings.
1.The harm the smog caused didn’t include .
A. reducing visibility to less than 200 meters
B. disrupting traffic
C. health problems
D. heavy fog
2.Which of the following is true according to the passage?
A. Only a small part of China suffered the haze.
B. Many highways were blocked up
C. All the flights were delayed or cancelled
D. The bad weather would last another few days
3.When the passenger said “It is Mother Nature”, he had a feeling of .
A. impatience B. frustration
C. Anxiety D. curiosity
4.The passage is developed by .
A. making comparisons
B. giving examples
C. following the time order
D. analyzing the causes
高二英语阅读理解中等难度题查看答案及解析
People have been complaining about SK-II recently and think the advertisements always persuade people _________ the products which are not so good.
A.buy B.to buy C.buying D.bought
高二英语单项填空中等难度题查看答案及解析
Sports are the base of my life, next to my mother who raised me when my dad left us. I have been into sports since I was six years old. I have known many coaches and heard hundreds of their tips, but they usually focused on drills to develop my skills and reach the next level of play.
When I was in Senior Two, I met the new school basketball coach, Brian Pawloski. I thought I was certain to be selected for the school team since I had been in it the year before. I showed up to the tryouts (选拔赛) and put out about 90% effort since I thought I’d make it with no problem. That was a big mistake.
Brian Pawloski is the hardest-working coach I have ever met. He didn’t expect 100% effort, he expected 200% effort. One example: he once made us do 40 suicide drills for the 40 lay-ups (投篮) we missed in a game. Some think this is crazy, but it isn’t. After this conditioning practice, as we were getting a cup of cold water to drink, I said, “Coach that was the best practice I ever had.” I was completely sincere. This man was and is the person who influenced me most at my high school. He expects us to be excellent not just on the court but in the classroom. If I am not working on basketball, I am reading a book that he thinks will help us better understand life’s challenges, including Wooden, Coach, and The Screwtape Letters.
In the first two years I slacked off, not putting forth my full potential. Now, unlike the coaches of my youth, this man was interested in how he did off the court. He always made sure I kept up with my studies and was able to be trusted. I can honestly say that no other coach has given me so much advice on how to succeed in basketball, but more importantly, in life. My school is lucky to have such a great person to teach, coach and influence their students. I will always remember my high-school basketball days as one of the hardest times I have ever worked in my life not only in basketball but in my growth as an individual.
1.Different from other coaches, Coach Brian ________.
A. trained the team to the edge of death
B. expected the team to do well in their studies
C. asked the team to do more reading than training
D. concentrated on skill training
2.The underlined phrase “slacked off” in the last paragraph probably means ________.
A. made less effort B. paid no attention
C. showed no interest D. had less passion
3.In the author’s eye, Coach Brian is ________.
A. professional and serious B. skilled and cruel
C. hardworking and honest D. strict and helpful
高二英语阅读理解中等难度题查看答案及解析
My Fellow Americans,
I have recently been told that I am one of the millions of Americans who will be suffered from Alzheimer’s Disease (老年痴呆症).
Upon learning this news, Nancy & I had to decide whether as private citizens we would 36 this a private matter or we would make this news known in a 37 way.
In the past Nancy suffered from breast cancer 38I had my cancer surgeries (外科手术). We found that after we told it to the public, we were able to 39 public awareness(意识). We were happy that 40 many more people went to have a test. They were treated in early stages and able to 41to normal, healthy lives.
So now, we feel it is 42 to share it with you. In opening our hearts, we hope this might promote greater 43of this condition. Perhaps it will encourage a clearer understanding of the individuals and families who are 44 by it.
At the moment I feel just fine. I’d 45 to live the remainder of the years God gives me on this earth doing the things I have 46done. I will continue to share 47 journey with my beloved Nancy and my family. I plan to enjoy the great outdoors and stay in touch 48 my friends and supporters.
Unfortunately, as Alzheimer’s Disease 49, the family often suffers a lot. I only wish there was some way I could spare Nancy from this 50 experience. When the time comes I am confident that with your help she will 51it with faith and courage.
At last, let me thank you, the American people for giving me the great honor of 52 me to serve as your President. When the Lord calls me home, 53 that may be, I will leave with the greatest love for this country of ours and endless optimism (乐观) for its future.
I now begin this 54that will lead me into the sunset of my life. I know that for America there will always be a bright 55 ahead.
Thank you my friends. May God always bless you.
Sincerely,
Ronald Reagan
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高二英语完型填空简单题查看答案及解析
I recently bought a house and moved in the first weekend of July.
Since I have been in my new neighborhood, I have had the pleasure of meeting a few of my neighbors who seem to be extremely nice people. For Christmas, I thought I would do something nice for each of the neighbors that I know. I sat down and counted. There were nine neighbors but I decided to add one more person to my list for a total of ten. This lady that I decided to add lives down the street from me. I meet her every morning walking to work as I drive down the street. She always manages a sweet smile and a hearty wave. I had no idea what her name was and was not even sure which house she lived in.
My gift idea was to make small fruit baskets and leave them on each of my neighbors’ front porches or door-steps the night of Christmas Eve for them to find, either that night or the next morning. I signed the cards—“Happy Holidays from 5104 Northumberland Road.”
My neighbors really appreciated the baskets and would tell me as they saw me in the yard or they would call, and a couple even came by to thank me.
This morning on my way to work, I placed my mail in the mailbox and noticed a small note inside. It was addressed simply “Resident,5104 Northumberland Road.”
I opened the envelope and took out a Thank You card. I opened the card and read the message which really caught me by surprise.
The card said:“Thank you for the lovely fruit basket you left on the porch of Richard Kelly. It was very thoughtful. Richard Kelly passed away less than a month ago. He never stopped talking about how nice it was that someone remembered him in his time of illness. He really appreciated it.”
I was sincerely moved. I had no idea who Richard Kelly was or that he had been seriously ill. I had left that nice lady’s basket on Mr. Kelly’s porch by accident.
65. Which of the following statements can be supported by the passage?
A. What a pity it was that the lady didn’t receive her gift!
B. A mistake made by chance caused an excellent result.
C. Richard Kelly was so lucky to receive the gift.
D.A careless man made a careless mistake.
66.The reason why the writer wanted to send gifts was that .
A. he intended to show his friendship to his new neighbors
B. he wanted to gain respect from his new neighbors
C. he intended to express his love to his neighbors
D. he planned to make friends with his new neighbors
67.Who knew the truth of the gift to Richard Kelly according to the passage?
A. The young lady. B. Richard Kelly.
C. The writer. D. The writer of the Thank You card.
68.It can be inferred from the passage that the writer was .
A. moved and pitiful B. moved and excited
C. interesting and funny D. shocked and sorry
高二英语阅读理解简单题查看答案及解析